Question1: When the forwarding table entry is stored in the main control board, after the packet enters the interface board, the query and forwarding of the packet can be completed directly on the interface board, thereby improving the packet forwarding efficiency.
Question2: Which of the following descriptions about ABR in OSPF is wrong?
Question3: There are many timers in Portal authentication. Which of the following timers can be used to prevent DoS attacks?
Question4: Which of the following descriptions about SPT switching in PIM-SM is wrong?
Question5: The next hop address of the routing entry in the routing table must be on the same network segment as the address of its directly connected interface.
Question6: Execute the () saved-configuration command to clear the contents of the configuration file used for the next startup of the device, and unspecify the configuration file used for the next startup of the system, thereby restoring the device configuration to the default value.
Question7: When encountering network failures, engineers often use a layered troubleshooting approach.
Because all models follow the same basic premise, a model's higher-level structures can only work properly when all of its lower-level structures work properly. Please match the following inspection items with the corresponding levels according to the hierarchical method. Whether the TCP connection is established correctly, whether the port is open, etc., whether the interface protocol is UP, whether layer 2 addressing is normal, etc., whether the physical status of the interface, cables and connectors, etc. are UP, etc., whether the routing protocol is working normally, etc.
Question8: The BGP protocol uses the peer default-route-advertise command to advertise routes to neighbors. At the same time, which of the changes in the DGP routing table are correct?
Question9: Can be used for a variety of routing protocols. The routing tool consisting of if-match and apply clauses is?
Question10: The MAC address of a certain PC is 5489-98FB-65D8. The administrator wants this PC to obtain the specified IP address 192.168.1.11/24 from the DHCP server. So the command configured by the administrator should be:
Question11: BGP uses which of the following messages to exchange routing information between peers?
Question12: Which of the following descriptions about OSPF is wrong?
Question13: Which of the following statements about MSTP is correct? (Multiple choice)
Question14: In the network as shown in the figure, which of the following descriptions about R4 preferred routing is correct?
Question15: Which of the following statements about stack splitting is incorrect?
Question16: The router directly guides the forwarding of data according to the FIB forwarding table.
Question17: Which of the following statements about IGMPv2 routers maintaining segment group membership are correct? (Multiple choice)
Question18: Regarding the BGP recognized arbitrary attribute, which of the following descriptions are correct?
(Multiple choice)
Question19: By default, which of the following options is the maximum number of area addresses that can be configured in an IS-IS process?
Question20: Regarding the load sharing description of VRRP, which is correct? (Multiple choice)
Question21: When a stateful inspection firewall forwards subsequent data packets (not the first packet), which of the following is mainly based on?
Question22: Which of the following descriptions about the VRRP Backup device are correct? (Multiple choice)
Question23: Check the LSP on a router and see the following results:
Which of the following statements is correct?
Question24: When OSPF external routes are imported, Metric-Type-1 or Metric-Type-2 will be used, so which of the following is the calculation method of the routing cost of Metric-Type-1 type?
Question25: Among the following options, which routing prefixes satisfy the following IP-Prefix conditions?
(Multiple choice)
[HUAWEI] ip ip-prefix test index 10 permit 20.0.0.0 16 greater equal 24 less-equal 28
Question26: Please compress the address 2001:0DB8:0000:C030:0000:0000:09A0:CDEF. ()
Question27: The network management functional model defined by OSI is divided into multiple functional areas.
Which of the following does not belong to this functional area?
Question28: Which of the following description of the Hello message in PIM-SM is wrong?
Question29: Route import can realize communication between different protocols. Which of the following issues need to be paid attention to when configuring route import? (Multiple choice)
Question30: As shown in the figure, the GEO/0/0 and GEO/0/1 interfaces of RTA are respectively connected to departments 1 and 2, and their network segments are respectively 10.1.2.0/24 and 10.1.3.0/24, which are restricted departments Between 1 and 2, deploy traffic-filter on RTA, which of the following deployment methods is correct? (Multiple choice)
Question31: Telemetry is mainly used to monitor the network, including packet inspection and analysis, security intrusion and attack detection, intelligent data collection, application performance management, etc.
Which of the following descriptions about Telemetry is wrong?
Question32: Regarding LSA3, LSA4 and LSA5, which of the following description is correct?
Question33: The output of a certain router is shown in the figure. According to the information analysis in the figure, which one of the following descriptions is correct?
Question34: The administrator received the following requirements to design ip as-path-filter. It needs to be realized that the company headquarters (AS 65001) can accept the route originating from the branch office (AS 65110), and the route must pass through AS65002, then please the following configurations and sequences match.
Question35: Which of the following descriptions about the IGMPv3 report (G, INCLUDE, (S1)) sent by a host is correct?
Question36: Which of the following descriptions about BGP loop protection is correct? (Multiple choice)
Question37: RSTP converges faster than STP because of? (Multiple choice)
Question38: To implement the traffic filtering function, you can use traffic-filter or MQC. Compared with traffic-filter, MQC can be called in more views.
Question39: In WLAN networking, which of the following backups supports both active backup and load sharing backup?
Question40: Which of the following descriptions of IS-IS area division are correct? (Multiple choice)
Question41: The monitoring plane is generally composed of the monitoring unit of the main control board and the interface board, which can independently complete the system's environmental monitoring.
Which of the following aspects of environmental monitoring can be completed by the monitoring plane?
(Multiple choice)
Question42: Which of the following does not include the advantages of address translation technology?
Question43: BGP prefers the route with the best Origin attribute value. The Origin attribute value is: EGP, (), Incomplete.
Question44: In the multicast service model, the SSM model generates entries for each (S, G) information.
Question45: Which of the following parameters cannot be modified by the apply command of Route-Policy?
Question46: If the router-id is configured in both the system view and the BGP view of the router, since the BGP view has a higher priority, BGP uses the router-id in the BGP view.
Question47: Through the following display commands, by which of the following you can judge whether the switch loop failure is caused?
Question48: In the PIM protocol, which of the following packets have destination addresses that are unicast addresses? (Multiple choice)
Question49: Check the IGMP configuration of the interface on the router RTA as follows. Which statement about the RTA running information is wrong?
Question50: The function of Hello message in PIM-SM is? (Multiple choice)
Question51: Attack source tracing can find the attack source user or attack source interface based on the information in the attack packet, so that the administrator can be alerted through alarms and logs, or the packet can be discarded directly.
Question52: Regarding the description of the characteristics of a high-availability network, which one is correct?
(Multiple choice)
Question53: Which of the following descriptions of the VRRP working process is incorrect?
Question54: In order for indirect EBGP neighbors to be established normally, which of the following configurations must be included? (Multiple choice)
Question55: What are the key components of building an IP wide-area bearer network solution together with Huawei NetEngine intelligent routers?
Question56: Please match the following mechanisms in PIM-DM with their corresponding concepts.
Question57: Which of the following are the differences between IGMP versions? (Multiple choice)
Question58: IS-IS cannot run on point-to-multipoint links P2MP (Point to MultiPoint)
Question59: Which of the following description about VRRP is wrong?
Question60: As shown in the figure, router R has static routes to three network segments of Site A, Site B, and Site C respectively. The administrator needs to configure to import the routes of Site A and Site B into the OSPF Domain. Please set the commands for configuring RE are completed below.
1:______
2:______
3:______
Question61: Which of the following descriptions about the Originator_ID attribute in BGP is correct? (Multiple choice)
Question62: Which of the following descriptions of multicast are incorrect? (Multiple choice)
Question63: Which of the following BGP path attributes are optional transition attributes? (Multiple choice)
Question64: Which of the following descriptions about the ACL matching mechanism are correct? (Multiple choice)
Question65: Which of the following OSPF areas can only reach other areas through the default route?
Question66: The import-route limit command cannot limit the maximum number of external routes that can be imported in an OSPF process.
Question67: When receiving which of the following messages, the DHCPv6 server will not reply with a Reply message?
Question68: After the local identifier and remote identifier in BFD are configured incorrectly, if you want to modify, you can delete the incorrect configuration and reconfigure or directly configure the correct identifier to overwrite the original incorrect identifier.
Question69: In IGMPv2, how many seconds is the default maximum response time for general visit group queries?
Question70: Which of the following statements about the forwarding plane of switching equipment is incorrect?
Question71: When the HSB backup group is enabled in the WLAN network, if the AP adds AP information offline on the backup AC after the main AC comes online, the AP status on the backup AC will be displayed as fault.
Question72: As shown in the figure below, in order to allow PC1 to access PC2, please fill in the corresponding commands to the corresponding blanks.
Question73: OSPF supports two authentication methods: regional authentication and interface authentication. If these two authentication methods are configured at the same time, interface authentication is superior to regional authentication.
Question74: Which of the following BGP attributes will not be advertised to neighbors along with BGP Update packets?
Question75: When the MTU of the interconnection interface of two routers in the broadcast network does not match, and the interface is configured with ospf mtu-enablet, which of the description of the state change of the neighbor relationship between the two routers is correct?
Question76: Which of the following types of LSAs can carry tag information for external routes?
Question77: Which of the description about VRRP is wrong?
Question78: In a large-scale WLAN network, when the VLAN Pool uses HASH to allocate VLANs, the number of users in each VLAN will be evenly divided.
Question79: If as shown, the four switches have been running and converged to complete the spanning tree calculation, and all port costs of the ST3 port are now set to 20000, then which of the following descriptions are correct? (Multiple choice)
Question80: As shown in the figure, three first-level switches are interconnected with one HUB. The STP function is enabled on all switches. Please refer to the figure below for the STP bridge ID setting of the switch.
Others are default configurations.
Which option in the following description is incorrect?
Question81: In OSPF, the elected DR and BDR in a broadcast network listen to both the 224.0.0.5 address and the 224.0.0.6 address
Question82: Routers R1 and R2 are directly connected through GigabitEthernet0/0/0 respectively, and try to establish an OSFP neighbor relationship, but the neighbor relationship has not been successfully established. The troubleshooting process is shown in the figure.
So which of the following operations can make R1 and R2 neighbor management established normally?
Question83: As shown in the figure, network administrator A can control the path of traffic entering AS100 after modifying the MED value of the routing entries sent to R2 on the R1 router through the routing policy.
Question84: Add interface GE1/0/1 to the trust security zone on the Huawei firewall. At this time, the GE1/0/1 interface belongs to the () security zone.
Question85: What are the main types of ISIS Hello messages? (Multiple choice)
Question86: IPv6 address 2001:0DB8:000A:C030:0000:0000:09A0:CDEF is ______ after compression.
Question87: The physical interface bound to the VRF instance cannot be divided into sub-interfaces.
Question88: Which of the following parameters are involved in the election of DIS in IS-IS? (Multiple choice)
Question89: The only network type that does not elect DR/BDR is p2p type.
Question90: MQC includes which of the following elements? (Multiple choice)
Question91: When configuring BGP, if such an alarm is generated: "BGPI6ESTABLISHED:OID[oid] The BGP FSM enters the Establishedstate , which of the following description is correct?
Question92: L2TP is a type of VPDN (Virtual Private Dial-up network) tunnel protocol. It is a VPN that provides access services for traveling employees or corporate branches to remotely access corporate intranet resources in remote office scenarios. It runs on the network layer of the TCP/IP protocol stack.
Question93: Mechanisms such as sending active and standby service messages and retransmission can be used to prevent the HSB backup channel between the active and standby ACs from being interrupted and cannot be sensed.
Question94: By default, VRRP on Huawei AR routers runs in preemption mode.
Question95: Regarding the description of the VRRP slave device, which is correct? (Multiple choice)
Question96: As shown in the figure, if the user wants to use SSH to access the Headquarter S_Site server through the public network, and for security reasons, the destination port number accessed from the external network cannot be the same as SSH, then which of the following NAT can be used? Is the technology capable of meeting this need?
Question97: NEICONF is a ()-based network configuration protocol. Its purpose is to automate network configuration in a programmable manner, thereby simplifying and accelerating the deployment of network services.
Question98: OSPF type 2 external routing cost is the sum of AS internal cost (cost from router to ASBR) and AS external cost.
Question99: Which of the following statements about stacked MAD detection is incorrect?
Question100: In the network shown in the figure, the R1 device is configured with route penetration. Then the R1 device sends the LSP of Level 1-2 to R3 so that R3 can learn the entire network route.
Question101: The networking shown in the figure, SWA, SWB, SWC and SWD run RSTP, which of the following statements is correct? (Multiple choice)
Question102: When the administrator views the RIB table of the device, the OSPF external route should be marked () in the Protocol field.
Question103: The IP protocol number of the VRRP message is:
Question104: Multiple BGP processes cannot be configured on one router.
Question105: Recognized attributes in BGP are attributes that all BGP routers must recognize and be included in Update messages.
Question106: Which of the following descriptions of wildcard masks is correct?
Question107: The output information of a router is below, which is correct about this information?
Question108: As shown in the figure, STA and STB run the RSTP protocol, and the Cost of Path remains the default. Which of the following descriptions of device and port status is correct?
Question109: On Huawei equipment, which of the following commands can realize the linkage between BFD and the static default route?
Question110: Which of the following descriptions about BGP, OSPF, IS-IS, and RIP is correct?
Question111: Now you need to add AC1 with the source interface IP address of 10.1.200.100 and AC2 with the source interface IP address of 10.1.200.200 to the Huawei roaming group. Their configuration is as shown below. Then the command () should be configured in the space.
Question112: Two level-1 routers in different areas can form neighbor relationships.
Question113: In RSTP, many optional protection functions are set to prevent the Layer 2 network from being invaded by malicious users.
So which of the following descriptions about TC-BPDU functions are correct? (Multiple choice)
Question114: By default, in the VRP version, when the BGP neighbor ingress routing policy (route-policy) changes, refresh will be automatically sent to the neighbor to request the neighbor to resend an Update message.
Question115: Which statement about RIB and FIB is wrong?
Question116: Which of the following routing protocols support publishing default routes through command configuration? (Multiple choice)
Question117: In the OSPF routing protocol, the unit of bandwidth-reference command is Mbps.
Question118: When two routers establish a pair of logical BGP peers through a multi-hop physical link, the peer connect-interface command must be used.
Question119: Which of the following descriptions about route introduction is wrong?
Question120: The interface using Silent-Interface will not receive and send OSPF messages, but directly connected routes can be advertised to OSPF.
Question121: Configure OSPF area 10 as a Totally NSSA area. The commands that need to be configured are:
[Huawei] ospf 1
[Huawei-ospf-1] area 10
[Huawei-ospf-1-area-0.0.0.10] nssa ______
Question122: Which of the following information is the real-time backup data of HSB business? (Multiple choice)
Question123: Which of the following IEEE 802.11 standards corresponds to Wi-Fi 6?
Question124: Which of the following options is the minimum total length of the NET address in IS-IS?
Question125: Generally, an interface only needs to be configured with one primary IP address, but in some special cases, a secondary IP address needs to be configured. Which of the following options is the maximum number of addresses that can be configured for each Layer 3 interface?
Question126: Which of the following descriptions of routing interactions between BGP peers are correct? (Multiple choice)
Question127: Huawei's CloudCampus solution supports the business mobility function, which can be configured through graphical policies to enable users to access it anytime and anywhere.
Question128: There is an existing switch that has been powered on and configured for stacking, and is connected to the already running stacking system through stacking cables. Which of the following descriptions of the process is incorrect? (Multiple choice)
Question129: Which of the following descriptions is wrong about the address function of NDP?
Question130: When routers running the OSPF protocol exchange DD messages, which of the following parameters will be used to elect the master-slave relationship?
Question131: Four routers run IS-IS and have established adjacency relationships. The area numbers and router levels are marked in the figure. What is the Cost value for R4 to reach 10.0.2.2/32?
Question132: Which of the following descriptions of VRRP versions are correct? (Multiple choice)
Question133: Which of the following descriptions about IGMP Proxy are correct? (Multiple choice)
Question134: Which of the following is not a role of a stack switch?
Question135: As shown in the figure below, RTC announces 10.1.1.0/24 into BGP, and RTC is the client of route reflector RTB. Then router RT() will not receive the route entry 10.1.1.0/24 reflected by RTB.
Question136: Which of the following descriptions of mirror ports are correct? (Multiple choice)
Question137: To prevent the system from misjudging roaming with the same VLAN ID but in different subnets as Layer 2 roaming, you need to use the roaming domain to determine whether the devices are in the same subnet. If they are the same, it is Layer 2 roaming, and vice versa. layer roaming.
Question138: As shown in the figure, the output information of R1 is as follows, then the Router ID of R1's neighbor router is ().
Question139: The default time interval for sending BFD detection packets is:
Question140: As shown in the figure, RTA, RTB, RTC, and RTD are in the same AS and establish IBGP neighbor relationships through direct links. RTB and RTC are route reflectors, and RTA and RTC are route reflector clients of RTB. RTB and RTD are route reflector clients of RTC. RTA announces 10.1.1.0/24 into BGP.
Then the Originator ID value of the BGP route update received on RTD is ()
Question141: Which of the following descriptions of the PIM-DM multicast distribution tree are correct? (Multiple choice)
Question142: Please sequence the process of allocating VLANs to terminals from the VLAN Pool.
Question143: The OSPF protocol has authentication capabilities for all data packets exchanged between neighboring routers. In the VRP system, which of the following algorithms does OSPF support?
Question144: As shown in the figure, when R2 passes the route of 10.0.1.0/24 to R3, which of the following is the Next_Hop address of the route?
Question145: Which of the following descriptions about the Keepalive message in BGP is wrong?
Question146: As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state. At this time, which of the following processes will the network go through to achieve stability?
Question147: The advantage of IS-IS messages using the TLV structure is that it has better scalability. To add new features, you only need to add a new TLV, and there is no need to change the overall structure of the entire message.
Question148: Which of the following descriptions about OSPF is correct?
Question149: Which of the following descriptions of multicast MAC addresses are incorrect? (Multiple choice)
Question150: Which of the following description about OSPF DR is incorrect?
Question151: Which of the following functions does Huawei's ilaster NCE product have? (Multiple choice)
Question152: Which of the following LSAs has a propagation range only in a single area? (Multiple choice)
Question153: Regarding the information description of OSPF's ASBR Summary-LSA, which of the following is wrong?
Question154: Three switches run the RSTP protocol, and the topology and configuration are as shown in the figure.
So which of the following descriptions of root bridges is correct?
Question155: Which of the following descriptions about IGMPv1 and IGMPv2 are correct? (Multiple choice)
Question156: Which of the following events will cause IS-IS to generate a new LSP? (Multiple choice)
Question157: Both policy routing and routing policies can affect the forwarding process of data packets, but they affect data packets in different ways. Policy routing is policy-based forwarding and is based on the forwarding plane. Routing policies are based on the control plane and serve routing protocols and routing tables.
Question158: In the PIM router, the (S, G) routing table entry guides packet forwarding. If the received multicast packet does not exist in the (S, G) routing table entry, which of the following table entries will be used to create it?
Question159: When the service is configured as VLANPoo1, if the user fails to obtain an IP address within a certain period of time and the dhcp update vlan assignnentthreshold command is configured, VLANPoo1 will be triggered to assign a new VLAN to the user, so that the user can obtain an IP again in the new VLAN address.
Question160: MQC, like PBR, can only be called under the layer 3 interface of the device.
Question161: Which of the following options is not the purpose of OSPF Hello message exchange?
Question162: Which of the following descriptions about the default security zones Trust and Untrust of the firewall is correct? (Multiple choice)
Question163: There is an existing switch connected to a designated port through a certain port, but this port does not forward any packets, but can monitor network changes by receiving BPDUs, so which of the following options should the role of this port be?
Question164: When the IPv6 address of the host is configured in the stateless address configuration method, and other parameters except the address are obtained through DHCPv6, how to set the M bit and 0 bit in the RA message?
Question165: As shown in the figure, OSPF is enabled on all interfaces of the router. The cost value of the link is marked in the figure. Interface 0 of R2 Loopback0 is advertised in area 0. In area 1, R2 and R3 will transmit 10.0 in the form of Type3 LSA. 2.2/32 routing information.
Question166: Which of the following protocols does not support network configuration management?
Question167: When a routing protocol introduces other routing protocols, in order to only introduce a part of the routing information that meets the conditions and set certain attributes of the imported routing information, the route-policy tool can only be used.
Question168: In order to avoid inter-area loops, OSPF stipulates that routing information is not allowed to be published directly between two non-backbone areas. Routing information is only allowed to be published within an area, or between a backbone area and a non-backbone area. Therefore, each Area Border Router (ABR) must be connected to the backbone area.
Question169: As shown in the figure, SW1 and SW2 have just run RSTP and are now performing spanning tree calculation.
So, which of the following descriptions about the port synchronization process in the P/A mechanism are correct? (Multiple choice)
Question170: Regarding the description of BCP message types and message characteristics, which is wrong?
Question171: Multiple bare spanning trees can be generated in an MST domain, and each spanning tree is called an MSTI. MSTI uses Instance ID identification, and the value of Huawei equipment is 0~32768.
Question172: Which of the following descriptions about configuring roaming groups is wrong?
Question173: Which of the following strategies or tools cannot be applied to OSPF?
Question174: Deploy BFD and OSPF association on the direct link. If the physical link is disconnected, please arrange the BFD processing process in order.
Question175: The following is part of the output information of the router RTD. Which of the following description of the output information is wrong?
<RID>display igmp-snooping IGMP Snooping Information for VLAN 3
IGMP Snooping is Enabled
IGMP IP Version is Set to default 2
IGMP Query Interval is Set to default 60
IGMP Max Response Interral is Set to default 10
IGMP Robustress is Set o default 2
IGMP Lase Weniber Query Interval is Set to defauit 1
IGMP Router Port Aging Interval is Set to 180s or holdtime in hello
Question176: Use the default-route-advertise command to advertise the default route into the OSPF domain.
Which of the following types of LSA does the default route belong to?
Question177: The development of technology and applications has promoted the arrival of the Wi-Fi6 era. Which of the following descriptions of the high performance of Wi-Fi6 are correct? (Multiple choice)
Question178: By default, the IS-ISLevel-1-2 router will publish the detailed routing information of the Level-2 area to the Level-1 area to ensure that the routers in the Level1-1 area can normally access the devices in the backbone area.
Question179: For link state routing protocols, the use of multi-region and hierarchical network design can speed up route convergence, reduce the load of devices in a single area, and make the network more scalable.
Question180: Which layer of the OSI model does the BGP protocol run on?
Question181: The FIB table is located on the data plane of the router, and each forwarding table entry specifies information such as the outgoing interface and the next-hop IP address to reach a certain destination.
Which of the following meanings does the B field in FLAG represent?
Question182: Which of the following description of the virtual connection in OSPF is wrong?
Question183: BGP prefers the route with the best Origin attribute value. The value of the Origin attribute is: EGP, IGP, ().
Question184: Please match the following BGP messages with their functions
Question185: If roaming is implemented between two APs, the same security policy, forwarding mode and the same () must be met.
Question186: Which of the following understanding of DR/BDR is wrong? (Multiple choice)
Question187: There are multiple default security zones on the USG firewall. The Untrust zone and Local zone cannot be deleted by the administrator, but the Trust zone and DMZ zone can be deleted.
Question188: In the VRP system, Route-Policy can match which of the following parameters? (Multiple choice)
Question189: BGP routing policy can control the publishing and receiving of routes.
Question190: Which of the following attacks is not a network layer attack?
Question191: Which of the following descriptions about BGP Atonic_Aggregate and Aggregator are correct?
(Multiple choice)
Question192: Regarding the content contained in the UPDATE message, the wrong description is:
Question193: Which of the following operations cannot control IS-IS routing?
Question194: Regarding the dual-link hot backup configuration, when configuring the priority of the AC, the larger the priority value, the higher the actual priority of the AC.
Question195: IPv6 uses segmented extension headers to improve QoS processing efficiency of IPv6 packets.
Question196: When running OSPFv3 on a Huawei router, the OSPFv3 process will automatically select an interface address as the router ID of the process.
Question197: The origin of SDN is the separation of transfer and control. The separation of transfer and control is a method to realize SDN but not the essence.
Question198: Which of the following is the command to configure VRRP to track the status of the physical interface?
Question199: Which of the following BGP route attributes can the Route-Policy tool modify? (Multiple choice)
Question200: IGMP Snooping runs at the data link layer and is used to manage and control multicast groups, and solves the problem of multicast packets being broadcast on Layer 3.
Question201: Different packets need to be used in the process of establishing OPSF adjacency relationships, so please associate the following states with the packets used in that state.
Question202: Which of the following OSPF packets carries master-slave relationship information?
Question203: As shown in the figure below, the firewall receives a message from PC1 to PC2, which of the following statements is correct?
Question204: In MSTP, CIST and MSTI are both calculated based on priority vectors. Which of the following descriptions of priority vectors is wrong?
Question205: Which of the following message types does BGP include? (Multiple choice)
Question206: In VRRP, when the device status changes to Master, it will immediately send free ARP to refresh the MAC table entry of the downstream device, thereby directing user traffic to this device.
Question207: Which of the following description of the permanent multicast address is wrong?
Question208: There is a wireless access controller serving as a DHCP relay. If the DHCP client cannot obtain an IP address dynamically, which of the following reasons may be the cause? (Multiple choice)
Question209: VLAN Pool can support multiple service VLANs at the same time mainly through one SSID, thus reducing the broadcast domain and reducing the waste of IP addresses.
Question210: Which of the following functions is implemented using NDP 135/136 type messages?
Question211: As shown in the figure, R1 and R2 are in a VRRP backup group, if R1 fails, which of the following actions will R2 perform?
Question212: The two routers RA and RB are directly connected, but the OSPF neighbor relationship cannot be established. The result of packet capture is shown in the figure. According to the packet capture analysis, which of the following is the reason why the OSPF neighbor relationship cannot be established?
Question213: Which of the following information does the BGP Open message carry? (Multiple choice)
Question214: Which of the following description about BGP, OSPF, ISIS is correct?
Question215: In the MA network, after the DR and BDR election is completed, if the BDR fails, the DRother will re-elect a new BDR until the original BDR returns to normal.
Question216: There is a message in the BGP protocol that is periodically sent between BGP neighbors to maintain the neighbor relationship. This message is:
Question217: Which of the following functions does iMaster NCE support? (Multiple choice)
Question218: In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?
Question219: The RSTP protocol defines different port states, including Discarding and Learning. Which of the description of these two port states is correct? (Multiple choice)
Question220: A certain router outputs the following information, which of the following statements is correct?
(Multiple choice)
<R1>display ospf interface Gigabitethernet 0/0/0
OSPF Process 1 with Router D 10.1.1.1
Interface: 10.0. 12.1(Gigabitethernet 0/0/0)
Cost: 1 State: DR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 10.0. 12.1
Backup Designated Router: 10.0.12.2
Timers: Hello 10,Dead 40,Poll 120,Retransmit 5,Transmit Delay 1
Question221: Router-LSA can describe different link types. Which of the following is not a Router LSA link type?
Question222: Which of the following descriptions of message authentication methods in IS-IS are correct?
(Multiple choice)
Question223: If the two interfaces of the firewall are divided into the same area, then the data packet flow between the two interfaces does not need to be processed by packet filtering and is forwarded directly.
Question224: BGP establishes neighbor relationships through UDP interaction.
Question225: When the Error Code of the BGP Notification message is 2, it means that the OPEN message is wrong. Which of the following error subcodes are contained in it? (Multiple choice)
Question226: As shown in the figure, all routers run OSPF. Because R3 is in the backbone area, there is no type three LSA in the LSDB of R3.
Question227: Which of the following types does IS-IS PDU include? (Multiple choice)
Question228: Round Robin scheduling method is to poll and send according to the number of bytes defined by each queue, and the bandwidth ratio of each queue is equal to the ratio of the number of bytes defined by this queue to the sum of the bytes of all queues.
Question229: When dual-link hot backup is configured in a WLAN group, the AP will establish CAPWAP links with the primary AC and backup AC respectively.
Question230: Which of the following is not a network security deployment goal?
Question231: Which of the following statements about BGP security are correct? (Multiple choice)
Question232: In RSTP, you can use the stp root primary command to configure the current device as the root bridge. After configuration, the device priority is automatically ( ), and the device priority cannot be changed.
Question233: In the BGP process, what is the role of the DETAIL-SUPPRESSED option of the AGGREATE command?
Question234: When there are two ACs and multiple APs in the WLAN network, to configure the network in master-backup mode, half of the APs plan AC1 as the main AC and AC2 as the backup AC, and the other half of the APs plan AC2 as the main AC and AC1 as the backup AC. AC, thereby improving AC resource utilization.
Question235: By default, VRP will automatically aggregate the routes introduced by BGP.
Question236: Which of the following descriptions about the duplicate address detection function of NDP is wrong?
Question237: As shown in the figure, in a pure IPv6 environment, if you want to realize the communication between PC1 and PC2, which of the following groups of addresses can be configured on PC1 and P2 respectively?
Question238: BGP uses TCP as the transport layer protocol, so what is the TCP port number used by BGP?
Question239: Which of the following descriptions of MAC address spoofing attacks is incorrect?
Question240: Which of the following descriptions about ASPF and Server-map is correct?
Question241: In 0SPF, using the default-route-advertise command will turn the router into an ABR.
Question242: MP-BGP extension to BGP-4 allows different types of address clusters to be distributed simultaneously in BGP.
Which of the following address clusters are supported by MP-BGP? (Multiple choice)
Question243: _____ refers to a collection of devices that are managed by the same organization and use a unified routing strategy.
Question244: What are the traffic statistics methods? (Multiple choice)
Question245: Which of the following descriptions about the Options field in the DHCP message are correct?
(Multiple choice)
Question246: The network administrator of a company checks the FIB of the router. What fields does the FIB contain? (Multiple choice)
Question247: Which of the following parameters are not mandatory items when configuring BGP Peer? (Multiple choice)
Question248: Which of the following options is related to the transmission rate of an Eth-Trunk port in manual link aggregation mode? (Multiple choice)
Question249: Which of the following descriptions about the application of RPF in multicast data forwarding is incorrect?
Question250: A wireless access controller interface has both the DHCP server function and the DHCP relay function enabled.
So which of the following descriptions of the processing method of the wireless access controller are correct? (Multiple choice)
Question251: In OSPF, ABR does not flood Type 5 LSA and Type 4 LSA into the Stub area. It advertises a default LSA to the Stub area and guides the data packet on how to reach the destination outside the AS.
Question252: Which of the following protocols can generate a multicast distribution tree?
Question253: Which of the following is the configuration command for linkage between VRRP and BFD?
Question254: Which of the following description of how to establish a BFD session is wrong?
Question255: In WLAN networking, in order to ensure network reliability, corresponding backup technology can be deployed according to user requirements. Which of the following descriptions of common backup technologies are correct? (Multiple choice)
Question256: The comparison items of the master switch election in the stack include? (Multiple choice)
Question257: The output information of a certain router is as follows. Please match the information on the left with the information on the right.
Question258: Which of the following does the basic framework of the SSH protocol not include?
Question259: The following is part of the configuration information of the router Huawei. Which of the description of the configuration information is wrong?
[HUAWEI] ip as-path-filter 2 permit 200_300
[HUAWEI]route-policy test permit node 10
[HUAWE]-route-policy] if-match as-path-filter 2
Question260: How does an IGMPv2 router maintain network segment group membership? (Multiple choice)
Question261: Rapid detection technology can detect communication failures with adjacent devices as early as possible so that the system can take timely measures to ensure uninterrupted business.
Question262: When two devices with the same priority compete for the Master role at the same time, the device with the interface with the smaller IP address should be selected as the Master device.
Question263: As shown in the figure, R1 and R2 have configured the local sending time interval, the local receiving time interval and the local BFD detection multiple in BFD. Now R1 and R2 are detected using query mode, so what is the actual detection time of R1?
Question264: Which of the following are the mechanisms supported by both IGMPv2 and IGMPv3? (Multiple choice)
Question265: As shown in the figure, the stateful inspection firewall will forward the second TCP three-way handshake message in the figure.
Question266: The traffic policy supports calling on the interface, but only supports calling the traffic policy in the outbound direction of the interface.
Question267: Which of the following are the necessary configurations of the firewall? (Multiple choice)
Question268: Which of the following descriptions about Filter-Policy are correct? (Multiple choice)
Question269: Which of the following values can be set for the security level of the security zone customized by the USG series firewall? (Multiple choice)
Question270: Option 82 in the DHCP message is called the relay agent information option, and the administrator can obtain a lot of client information from it. Option 82 can contain at most () Sub-Options.
Question271: When BGP establishes a peer connection, both this segment and the peer end will initiate a TCP three-way handshake, so two TCP connections will be established. However, in actual BGP, only one of the TCP connections will be retained. Obtain the peer BGP from the Open message. After Identifier, the BGP peer will compare the size of the local Router ID and the peer Router ID. If the local Router ID is smaller than the peer Router ID, it will be closed. The locally established TCP connection will use the TCP connection actively initiated by the peer. Subsequent BGP message exchange.
Question272: Among the following BGP attributes, which ones are recognized and must be followed? (Multiple choice)
Question273: In IPsec, which protocol can be used to achieve data integrity?
Question274: SDN architecture mainly includes two interfaces: NBI northbound interface and SBI southbound interface.
Question275: Which of the following descriptions of multicast routing are correct? (Multiple choice)
Question276: The core router in the Diff-Serv domain usually only needs to perform simple traffic classification.
Question277: The three routers run IS-IS and have established an adjacency relationship. The area numbers and router levels are marked in the figure. If the road between R1 and R2 is interrupted, which of the following statements is correct? (Multiple choice)
Question278: What parameters can the DHCPV6 server assign to the DHCPv6 client? (Multiple choice)
Question279: Which of the following IEEE 802.11 standards corresponds to Wi-Fi 6?
Question280: Which of the following descriptions about LSA and LSDB are wrong? (Multiple choice)
Question281: For a router running the OSPF protocol, all interfaces must belong to the same area.
Question282: A socket is composed of 5-tuples, so which of the following options does not belong to the range of
5-tuples?
Question283: TLV is an important data structure in IS-IS. Which of the following options does it represent?
Question284: The BFD version number supported by the VRP version is:
Question285: Which of the following descriptions about DR are correct? (Multiple choice)
Question286: Which of the following is the Link ID of the third type LSA?
Question287: There are many ways to establish clusters on modular switches. What methods does Huawei modular switches support to establish clusters? (Multiple choice)
Question288: Which of the following descriptions about the next-hop application of routing in BGP are correct?
(Multiple choice)
Question289: Which of the following attributes must exist in a BGP Update packet?
Question290: In the network shown in the figure, R1 and R2 run IS-IS and establish an adjacency relationship. The Loopback0 interface of R2 enables IS-IS, and the Loopback3 interface of R2 does not enable IS-IS. Under the IS-IS process of R2, do as follows Which of the following statements about the configuration shown in the figure is correct? (Multiple choice)
Question291: Which of the following descriptions about NSAP addresses in IS-IS are correct? (Multiple choice)
Question292: In the RSTP network shown in the figure, according to the configuration of SWC in the figure, it can be judged that the type of E0/1 port of SWC is? (Multiple choice)
Question293: In IGMPv2, the querier can send query messages to a specified multicast group in the shared network segment to query whether there are members in the multicast group.
Question294: In the switching network shown in the figure, all switches run the STP protocol. When the topology is stable, modifying the sending cycle of the configuration BPDU on which of the following switches can affect the sending cycle of the STD configuration BPDU?
Question295: If a new member joins a multicast group in PIM-DM, which of the following descriptions are correct?
(Multiple choice)
Question296: Which of the following protocols support network monitoring and management? (Multiple choice)
Question297: By default, the OSPF port cost is related to the bandwidth of the port. The calculation formula is bandwidth-reference/ban dwidth. The cost is only calculated by OSPF itself and cannot be changed manually.
Question298: Regarding the basic concept of link aggregation, which of the following description is wrong?
Question299: Regarding business travel, which of the following statements is correct? (Multiple choice)
Question300: Which of the following tools cannot be directly referenced by the apply clause of a route-policy?
Question301: When a router running IS-IS finds that the LSDB is out of sync, what kind of message will it send to request its neighbors to send a new LSP?
Question302: Which of the following description about LSA is correct?
Question303: A certain router runs IS-IS. The figure below shows the Hello message sent by the router. Which of the following statements is correct? (Multiple choice)
Question304: The Backup port in RSTP can replace the failed root port.
Question305: On-board AC refers to the built-in AC capability of Huawei agile switches to achieve integrated management of wired and wireless services. The traffic of wired and wireless services is unified and centrally managed by the agile switches.
Question306: On the VRP platform, when we introduce OSPF routing to ISIS, if COST is not specified, the cost value will be set to 16 by default.
Question307: R1, R2, R3, and R4 run IS-S. The DIS Priority of their interfaces is as shown in the figure. If the devices are started at the same time, () is elected as D1S.
Question308: Which of the following descriptions about router forwarding data are correct? (Multiple choice)
Question309: What does the display current-configuration | include vlan command mean?
Question310: In order to ensure the reliability of WLAN networking, two ACs of the same model are currently in the same computer room, and if a failure occurs between the primary and secondary ACs, the switchover can be completed as quickly as possible. Which of the following backup technologies is recommended to be deployed?
Question311: Which of the following statements about different types of firewalls is wrong?
Question312: In the Init state of the OSPF-enabled router, the destination address for sending Hello packets is
___
Question313: Regarding BGP MED, which of the following descriptions are correct? (Multiple choice)
Question314: A network engineer outputs the following information when troubleshooting OSPF protocol faults.
Based on this, determine what causes the adjacency relationship to fail to be established normally?
Question315: Among the following VPN technologies, which one is likely to cause two IP packet headers in one packet? (Multiple choice)
Question316: Among the following BGP attributes, which ones are recognized and must be followed? (Multiple choice)
Question317: Which of the following descriptions of LSP in IS-IS is incorrect?
Question318: In VRRP, when the virtual router responds to an ARP request, the main router direct interface MAC address is used.
Question319: Which of the following descriptions about RSTP root protection are correct? (Multiple choice)
Question320: The following is the BGP error output information of a router. The wrong description of this information is:
<HUAWEL>display bgp error
Error Type: Peer Error
Date/Time:2010-03-2211:40:39
Peer Address:10.1.1.2
Error lnfo Router-id conflict
Question321: The following is part of the output configuration of the Huawei router. Which is the correct description of this part of the configuration?
Question322: By default, OSPF external routes belong to which of the following types?
Question323: The ACL configuration on a certain router is shown in the figure, so which of the following items are the addresses that satisfy this condition? (Multiple choice)
Question324: Which of the following descriptions about IGMPv3 is wrong?
Question325: A certain router runs IS-IS and its output information is shown in the figure. Which of the following statements is correct? (Multiple choice)
Question326: Packet loss only occurs at the sending end of the message.
Question327: In VRRP, when devices in the same backup group perform VRRP packet authentication, which of the following parameters will not affect the authentication negotiation results between the Master device and the Backup device?
Question328: In BGP routing rules, which of the following options is used to determine the priority of the Origin attribute?
Question329: In a broadcast network, what is the default interval for sending Hello by DIS?
Question330: Routers R1 and R2 establish an OSPF neighbor relationship. When R1 receives an LSU message from R2, which of the following methods will it use to inform R2 that it has received the LSU?
Question331: Which of the following attributes may not be included in the Update message of a BGP route?
(Multiple choice)
Question332: Drag and drop question: As shown in the figure, please drag and search the messages to the corresponding location in order according to the four-step interaction process of DHCPv6.
Question333: Please match the following BGP attribute names with their attribute categories. (Drag and drop)
Question334: Which of the following descriptions of routing policies and policy routing are correct? (Multiple choice)
Question335: Please match the name of the BGP recognized community attribute with its function.
Question336: In WLAN networking, backup technologies can be deployed to ensure the reliability of the networking.
Which of the following statements about backup technology is correct? (Multiple choice)
Question337: In the OSPF routing protocol, the only LSA types involved in intra-area route calculation are Router LSA, Network LSA, and Summary LSA.
Question338: Please match different traffic transmission directions with specific inter-domain communication processes.
Question339: Which of the following descriptions about LSDB synchronization is wrong?
Question340: There are two ways to deploy Filter-Policy tools in BGP, one is to deploy globally under BGP, and the other is to deploy when pointing to peers (groups).
Question341: Which of the following descriptions about the four forwarding models of WLAN roaming traffic are correct? (Multiple choice)
Question342: When BGP uses Filter-Policy, you can use the filter-policy export command to filter the routes published externally. Only routes that pass the filtering can be added to the BGP local routing table and published by BGP.
Question343: Routing tools that are not only used for BGP routing protocol have (Multiple choice)
Question344: As shown in the picture, which of the following statements is correct?
Question345: Which of the following descriptions of IS-IS Hello messages are correct? (Multiple choice)
Question346: Through the linkage between BFD and MPLS LSP, BFD can be dynamically created to detect the connectivity of static or dynamic LSP.
Question347: The VNI field length of VXLAN packets is 24 bits.
Question348: As shown in the figure, R1 and R2 are in a backup group. After R2 fails, R1 becomes the Master device.
Now if R2 returns to normal, which of the following actions will occur?
Question349: Which of the following parameters are not required when configuring BGP Peer? (Multiple choice)
Question350: When the service VLAN has set the VLAN Pool to a dual-stack address pool, STA will successfully obtain an IPv4 address and an IPv6 address.
Question351: In the BGP routing rules, the priority of the manual summary route generated by the aggregate command is higher than the automatic summary route generated by the summary automatic command.
Question352: Unlike STP, RSTP has only one BPDU type, its value is 2, and there is no TCN BPDU.
Question353: In the WLAN network, when HSB backup group is enabled, if the AP has gone online on the primary AC and then the AP information is added offline on the backup AC, the AP status on the backup AC will be displayed as fault. At this time, you need to execute the undo hsb enable command in the HSB backup group view of the standby AC to enable the HSB active and standby backup function, and then execute the hsb enable command to enable the HSB active and standby backup function. At this time, the information on the active AC will be backed up to Standby AC to achieve consistent backup of active and standby information. The AP status on the AC will be displayed as standby.
Question354: After the stack is split, the party that loses the MAD election will be in the __.
Question355: The four routers run IS-IS and have established adjacency. The area numbers and router levels are shown in the figure. Which of the following is correct?
Question356: What protocol modules can BFD detection be linked with? (Multiple choice)
Question357: The attacker sends an ICMP response request and sets the destination address of the request packet as the broadcast address of the victim network to achieve the attack purpose. So, which of the following attacks does this behavior belong to?
Question358: After dividing an interface of the firewall into the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone.
Question359: Which of the following characteristics does the IS-IS protocol have? (Multiple choice)
Question360: Which of the following descriptions of different types of firewalls are correct? (Multiple choice)
Question361: Which of the following descriptions about CloudFabric intelligent operation and maintenance is wrong?
Question362: A certain router runs IS-IS, and its output information is shown in the figure. Which of the following statements is wrong?
Question363: The DHCP relay is responsible for forwarding DHCP messages between the DHCP server and the DHCP client, and assists the DHCP server in dynamically allocating network parameters to the DHCP client.
Question364: The following is the information output by a router. Which is the correct description of this information?
Question365: The advantages of network address translation (NAT) technology do not include which of the following?
Question366: Which of the following descriptions of AS attributes in BGP is incorrect?
Question367: Which of the following options are available for the network type supported by the OSPF protocol?
(Multiple choice)
Question368: Which of the following descriptions of the BGP Local_Preference attribute are correct? (Multiple choice)
Question369: If shown, the four switches have run the RSTP protocol and completed spanning tree calculations.
So which of the following descriptions of port roles are correct? (Multiple choice)
Question370: An administrator of a company modifies a user's access rights and authorization attributes and other parameters on the authentication server. At this time, user A who has successfully passed 802.1x authentication will perform which of the following actions?
Question371: During the operation of the DHCP protocol, the process from when the client applies to obtain an IP address is:
① The host sends a DHCP Request to request an IP address
② Server sends DHCP Offer message response
③ The host sends a DHCP Discover message to find DHCP
④ Server 4 Server responds with ACK response request after receiving the request
Question372: A Router LSA is shown in the figure, which of the following statements is wrong?
Question373: In PIM-SM, which of the following description of RP is wrong?
Question374: Which descriptions about IGMP Snooping are correct? (Multiple choice)
Question375: Which of the following descriptions about the P/A mechanism in RSTP are correct? (Multiple choice)
Question376: What are the benefits of OSPF area division? (Multiple choice)
Question377: Which of the following descriptions about IPv6 transition technology is correct?
Question378: It is known that Loopback0 exists on router R1 and its address is 1.1.1.1/32. This loopback interface will be introduced when OSPF is enabled and direct routes are introduced.
So which of the following configurations can ensure that Loopback0 will not be introduced when directly connected routes are introduced, and can ensure that other directly connected routes are introduced into OSPF?
Question379: BFD control packets are encapsulated in UDP packets for transmission, so the destination port number of the multi-hop BFD control packets is:
Question380: In BCP route selection rules, when other conditions are the same, the route with the larger MED value will be given priority as the best route.
Question381: Which type of TLV does IS-IS use to describe IPInterface Adiress?
Question382: The session-based state inspection firewall has different processing procedures for the first packet and subsequent packets. Which of the following description is correct? (Multiple choice)
Question383: In the multicast service model, in order to improve security, ASM can configure filtering policies for group sources on the router to allow or prohibit packets from certain multicast sources from passing through.
Question384: As shown in the figure, the ISIS neighbor relationship between R1 and R2 has just been established, and the database synchronization process between R1 and R2 is correct?
Question385: As shown in the figure, R1 and R2 are VRRP backup groups with VRID, where the State of R1 is
________, and the State of R2 is ________.
Question386: In the broadcast network shown in the figure, OSPF runs on four routers, and they are in the same area and the same network segment. OSPF will automatically elect a DR and a BDR, and the other two routers will become DR other, so as to achieve a better backup effect.
Question387: When performing source NAT configuration and having no-pat configuration parameters, which of the following statements is correct?
Question388: On a broadcast or NBMA network, not all neighbors will establish adjacency relationships.
Question389: In OSPF, if the network type is NBMA or broadcast and there are two or more routers, DR and BDR must be specified.
Question390: If you want to achieve communication between different protocols, you can only use route introduction.
Question391: IGMP3 not only supports the general group query of IGMPv1 version and the specific group query of IGMPv2 version, but also supports the specified source/group query of IGMPv3 version.
Question392: Which of the following description about the reliable routing update of BGP is correct?
Question393: If a BGP device is configured with the ip as-path-filter 1 permit ^12. *35$ command, which of the following AS_Paths can be correctly matched?
Question394: The BGPAS_PATH attribute is an optional transition attribute.
Question395: What is the minimum total length of the address in IS-IS Byte?
Question396: As shown in the figure, the stateful inspection firewall will forward the packet because the packet conforms to the firewall session state.
Question397: Which of the following multicast protocol capable of generating a multicast distribution tree?
Question398: As shown in the figure, PC1 and PC2 are hosts belonging to the same network segment. Which of the following descriptions about the status of IPv6 neighbors between PC1 and PC2 are correct?
(Multiple choice)
Question399: BFD itself does not have a neighbor discovery mechanism, but relies on the upper-layer application being served to notify its neighbor information to establish a session.
Question400: IGMP Snooping mainly solves the problem of:
Question401: In a large-scale WLAN three-layer network, which of the following statements about the DHCP server is wrong? (Multiple choices)
Question402: The above is part of the configuration of the router RTA. For the configuration description of this part, which is correct? (Multiple choice)
[RTA] ospf 100
[RTA-ospf-100] silent-bit Ethernet 1/0/0
Question403: The following is a partial configuration of a router. The correct description of this configuration is:
Question404: In a WLAN network, when there is an IPv4 Layer 3 networking between the AC and AP, the user needs to configure the Option43 field. Which of the following functions does it mainly implement?
Question405: Which statement about IGMP Proxy is correct? (Multiple choice)
Question406: When Filter-Policy is deployed in OSPF, Filter-Policy will modify the LSDB of OSPF.
Question407: Which of the following descriptions about VRRP load sharing is incorrect?
Question408: BGP prefers the route with the best Origin attribute value. The Origin attribute value is: (), IGP, Incomplete.
Question409: Which of the following are the advantages of electing DR/BDR in the MA network? (Multiple choice)
Question410: Which of the following descriptions about the reset ip ip-prefix command is correct?
Question411: As shown in the figure, there is part of the information output by the current ATE of the router. In the following description of this part of information, which one is wrong?
Question412: Please match the following BGP-recognized community attribute names with their corresponding functions.
Question413: Please pair the following functions with the basic concepts in the VRRP protocol.
Question414: Regarding the routers that can initiate SPT switching in the PIM-SM network, what is the wrong description? (Multiple choice)
Question415: ACL command ac1 [number] ac1-number [ match-order {autol config}], where ac1-numnbe is used to specify the number of the access control list, and the value range of ac1-number of the basic access control list is ().
Question416: Which of the following does not include the switch role in the stack system?
Question417: After dual-machine hot backup is configured, the primary and backup channels cannot be established. The information on the primary device cannot be normally backed up to the backup device, resulting in abnormal dual-machine hot backup. What is the possible cause of this failure? (Multiple choice)
Question418: OSPF can support multiple types of networks. Which of the following types of networks need to elect DR and BDR? (Multiple choice)
Question419: There can be multiple nodes under a Route-Policy. Different node numbers are identified by node numbers. The relationship between different nodes is an "OR" relationship.
Question420: For link state routing protocols, when using filter-policy import, the filtered link state information will not be calculated as routes, and its neighbors will not receive complete link state information.
Question421: As shown in the figure, the router runs OSPF, and Area2 is a completely stub area. Please match the LSA types and area IDs contained in each area. (Drag and drop)
Question422: ASPF (Application Specific Packet Filter) is a packet filter based on the application layer. It will check the application layer protocol information and monitor the application layer protocol status of the connection, and implement a special security mechanism through the Server Map table. Then which of the statement about ASPF and Server map table is wrong?
Question423: A certain router runs IS-IS, and its output information is shown in the figure. Which of the following statements is correct?
Question424: Which of the following descriptions about BGP route optimization is correct?
Question425: Which of the following descriptions about BGP neighbors is wrong? (Multiple choice)
Question426: When the IS-IS overhead type is Narrow, which of the following TLVs are used to carry IS-IS routing information inside and outside the routing domain? (Multiple choice)
Question427: In PIM-DM, which working mechanism combination constructs SPT? (Multiple choice)
Question428: The following is the information output by a router through the display bgp routing-table command:
BGP Local router ID is 192.168.2.2 Status codes: *-valid, >-best, d-damped, h-history, i-internal, s- suppressed, S-Stale Origin: i-IGP, e-EGP, ? incomplete Total Number of Routes: 9 Network Next Hop MED LocPrfPrefVal Path/0gn*>1.1.1.9/32 0.0.0.0*)i 2.2.2.7/32 10.1 .1.2100 (65001)i 1.3.1 1000 (6501165001)i*i 1.2.2100 (65011)i*>i 2.2.2.8/32 (6500165011)i 1.3.2100*i Regarding the description of the above output information, which one is wrong?
Question429: Which of the following descriptions of IGMP Snooping are correct? (Multiple choice)
Question430: Which of the following IP address ranges are not multicast address ranges? (Multiple choice)
Question431: How long is the IS-IS LSP flooding time in seconds?
Question432: The configuration of the two routers is shown in the figure, and they can establish OSPF adjacency.
Question433: Please pair the following IGMP versions with the corresponding working mechanisms.
Question434: Regarding the difference between NSR and INSF, which of the following is correct?
Question435: An autonomous system refers to an IP network with the same routing strategy under the jurisdiction of one entity. Under normal circumstances, the 2-byte AS number range is which of the following?
Question436: Which of the following descriptions about OSPF is incorrect?
Question437: What are the three ways of sending IPV4 packets? (Multiple choice)
Question438: As shown in the figure, three switches run the MSTP protocol.
So how many seconds is the convergence time for the ports connected to SW2 and SW3?
Question439: Which of the following metric types is supported by the IS-IS protocol? (Multiple choice)