EMT Practice Test

1. Question Content...

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Question1: When the Hold time supported by two BGP neighbors is inconsistent, the neighbors will negotiate to adopt the lowest Hold time interval that both ends can support.

Question2: The 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 ().

Question3: When two routers establish a pair of logical BGP peers through a multi-hop physical link, the peer connect-interface command must be used.

Question4: How does IGMPv2 router maintain the network segment group membership? (Multiple choice)

Question5: As shown is an IP packet header, which of the following statement is true?

Question6: Which of the following descriptions of the AC roaming group is wrong? (Multiple choice)

Question7: Which of the following description about BGP, OSPF, ISIS is correct?

Question8: The state inspection firewall uses the session table to track the active TCP sessions and UDP sessions, and the firewall security policy determines which sessions are established, and the data packets will only be forwarded when they are associated with the session.

Question9: The following description of the BGP UPDATE message, which is wrong?

Question10: Regarding the description of VRRP load sharing, which is correct? (Multiple choice)

Question11: Which of the following LSAs only spread in a single area? (Multiple choice)

Question12: Which of the following description about the way of BFD session establish is wrong?

Question13: Regarding the OSPF protocol packets, which of the following statement is false?

Question14: When configuring dual-link hot backup, the engineer configured the CAPWAP heartbeat detection interval to be 20 seconds, and the dual-link backup function is enabled, then how long does the AP detect the timeout of the main link and perform the main-standby switchover?

Question15: For the following understanding of DR/BDR, which is wrong? (Multiple choice)

Question16: Which version of IGMP is needed in SSM?

Question17: When the stateful inspection firewall forwarding a subsequent packet (non-first packet), which is mainly based on the following items?

Question18: Which of the following does not belong to the IGP?

Question19: All routers in a certain network run IS-S and are in Area 49.0001. The LSDB of R1 is shown in the figure, and the Level of the four routers is judged based on this.

Question20: For the information output by the display ospf peer, which of the following description is true?
<Huawei=display ospf peer
OSPF Process 1 with Router ID 10.1.1.2
Neighbors
Area 0.0.0.0 interface 10.1.1.2(Gigabitethernet1/0/0)'s neighbors
Router ID: 10.1.1.1
Address:10.1.1.1
State: Full Mode: Nbr is Slave Priority: 1
DR: 10.1.1.1BDR: None MTU: 0
Dead timer due in 38 sec
Retrans timer interval: 5Neighbor is up for 00: 00:04
Authentication Sequence: [0]

Question21: Which of the following about OSPF AS-External-LSA is correct? (Multiple choice)

Question22: The ABR in the OSPF stub area does not flood the fifth type LSA and the fourth type LSA into the stub area, and draws a default LSA to the stub area to guide how data packets reach the destination outside the AS

Question23: It is possible to prevent the HSB backup channel between the active and standby ACs from being interrupted and unperceivable through mechanisms such as sending active and standby service packets and retransmissions.

Question24: Which of the following descriptions of MED is correct? (Multiple choice)

Question25: The four routes are running lS-IS and the adjacency relationship has been established, the level of the area number and routers as shown, which of the following statements is true?

Question26: As shown in the figure, RTA, RTB, RTC, and RTD are in the same AS. IBGP neighbor relationships are established through direct links. RTB and RTC are route reflectors. RTA and RTC are the route reflector clients of RTB. RTD is the route reflector client of RTC, and 10.1.1.0/24 is announced into BGP on RTA, and the Originator ID value of the BGP route received on RTD is updated to ().

Question27: Among the matters needing attention in configuring the Stub area, which of the following description is correct?

Question28: What is the meaning of B in the FLAG field in the forwarding table?

Question29: By default, the VRRP of Huawei AR routers runs in preemptive mode.

Question30: SSH uses asymmetric addition AES and DES to realize the security of data transmission, and uses HMAC to ensure complete data integrity verification.

Question31: The default priority of VRRP devices in the backup group is:

Question32: Regarding the special area of OSPF, which of the following description of is incorrect?

Question33: As show in the figure, which of the following statements is true?

Question34: Which of the following descriptions of the LSA age field is correct? (Multiple choice)

Question35: If two devices are connected, and one of the devices supports the BFD detection function, and the other device does not, which feature of EFPD can be used by the device that supports the BED detection function to achieve link connectivity detection?

Question36: What problem does IGMP Snooping mainly solve?

Question37: Which of the following scenarios is not suitable for deploying interface policy routing?

Question38: Route redistribution refers to the operation of only advertising routing information from one routing protocol to another routing protocol.
Which of the following statements about route introduction is correct? (Multiple choice)

Question39: Which protocol modules can BFD detection be linked to? (Multiple choice)

Question40: In the MAC-based Portal authentication scenario, when a user successfully performs Portal authentication, he can disconnect from the network and reconnect within a certain period of time, and he can directly access through MAC authentication without entering the username and password to perform Porta1 authentication again.

Question41: Which of the following types of equipment is suitable for Huawei's IP wide area bearer network solution?

Question42: In the WLAN three-layer networking scenario, APs will go online through the following stages. Please sort them in order. (Multiple choice)

Question43: The following information is output to a route, which of the following description about the information is correct?

Question44: In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?

Question45: The IP protocol number of the VRRP message is:

Question46: Please match the following hardware modules with the corresponding functions.

Question47: Which of the following description about verifying whether a received Hello message is legal is wrong?

Question48: Regarding RP, which of the following statements is correct? (Multiple choice)

Question49: The BGP protocol uses the peer default-route-advertiset command to advertise routes to neighbors. At the same time, regarding the changes in the DGP routing table, which is correct?

Question50: By default, the interval for sending BGP Keepalive packets is () s. (using Arabic numerals)

Question51: Which statement about IGMP Proxy is correct? (Multiple choice)

Question52: Regarding the multicast ASM model and the SSM model, which of the following statements are correct? (Multiple choice)

Question53: What is the security level of the DMZ in the USG series firewall?

Question54: Among the commonly used routing policy tools for BGP, which of the following can be used to match a specific AS_path?

Question55: Which port role that cannot be in the forwarding state in RSTP? (Multiple choice)

Question56: As shown in the figure, the stateful inspection firewall will forward the second TCP three-way handshake message in the figure.

Question57: Which protocol modules can BFD detection be linked with? (Multiple choice)

Question58: Which of the following descriptions of the OSPF protocol is wrong?

Question59: The output information of a router is as follows, please match the information on the left with the information on the right.

Question60: The content contained in the UPDATE message, which of the description is wrong?

Question61: Which of the following categories can ACL be divided into? (Multiple choice)

Question62: Which of the following types of LSAs can carry tag information for external routes?

Question63: iMaster NCE-Campus supports the management of Huawei network equipment through NETCONF and the management of third-party equipment through SNMP

Question64: In VRRP, when the device status changes to Master, it will immediately send gratuitous ARP to refresh the MAC table entries of the downstream device, thereby directing the user's traffic to this device.

Question65: Which of the following description of BGP characteristics is wrong?

Question66: The multicast destination address of VRRP packets is ().

Question67: RPF has the function of preventing multicast forwarding loops.

Question68: The output information of a router is as follows, please match the information on the left with the information on the right.
Router ID of this device: ()
Router ID of the peer device: ()
The interface IP address of this device: ()
City ID to which this device belongs: ()

Question69: Which of the following routing protocols support the release of default routes through command configuration? (Multiple choice)

Question70: In PIM-SM, regarding RP, which of the following description is false?

Question71: On the broadcast or NBMA network, not all neighbors will establish adjacency.

Question72: The output information of a router below, which of the following regarding the description of this information is true?

Question73: In the network shown in the figure, the R1 device is configured with route penetration, then the R1 device sends the LSP of Leve1-2 to R3, so that R3 can learn the entire network route.

Question74: a router running IS-IS, the following picture shows the router sends Hello message, which of the following statements is correct? (Multiple choice)

Question75: Which is wrong about RIB and FIB?

Question76: In a certain network environment, there are both switches running RSTP and switches running SIP. What will happen to the network? (Multiple choice)

Question77: What are the conditions for matching firewall security policies? (Multiple choice)

Question78: What is the BFD version number supported by the VRP version?

Question79: Which of the following description of roaming is correct? (Multiple choice)

Question80: Which of the following description of the VRRP master device is wrong?

Question81: BGP neighbors are neighbor relationships established through UDP.

Question82: Intranet users of a company use the No-pat method of NAT to access the Internet. If all public IP addresses are used, what will happen to intranet users who subsequently go online?

Question83: Which of the following about the description of the information contained in the OPEN message in the EGP is incorrect?

Question84: Will setting the community attribute of the route through the routing policy affect the route selection?

Question85: In PIM-SM, which of the following description about RP is wrong?

Question86: As shown in the figure below, in order to realize that PC1 can access PC2, please complete the corresponding command to the corresponding blank space. (Multiple choice)

Question87: The advantages of address translation technology do not include:

Question88: The following is the BGP information output by a router. Which of the following rearding the description of this information is wrong?

Question89: Which of the following properties must exist in BGP 's Update message?

Question90: The relationship between various rules in MQC flow classification is divided into: and or or, and the relationship is () by default.

Question91: Which of the following statement about equipment for the exchange of forwarding plane is incorrect?

Question92: The routing strategy supports multiple operations on routing attributes. Please match the parameters of the following apply clauses with their functions.

Question93: When pinging the IP address of a certain interface of the firewall on the firewall, these messages will be handed over to the internal module of the firewall for processing and will not be forwarded.

Question94: By default in VRP, when the route-policy of BGP is changed, manual operations are required to resend the update message to the neighbor.

Question95: Which of the following description of VRRP is false?

Question96: As shown in the figure, the output information of R1 is as follows, and the Router ID of the neighboring router of R1 is ()

Question97: RSTP provides different protection functions in different scenarios. Which of the following is wrong?

Question98: The following is a part of the configuration of a router, which of the following regarding the configuration is true?

Question99: performing source NAT configuration, and when there is no-pat configuration parameters, which the following statement is correct?

Question100: A network engineer outputs the following information when troubleshooting the OSPF protocol. Based on this to determine which cause the adjacency relationship cannot be established normally?

Question101: A VRRP virtual router can only have a virtual IP address.

Question102: In the VRRP hot backup, which of the following statement regarding the AC used to establish the address of the CAPWAP tunnel is true?

Question103: Which of the following statements about the BFD detection mode is correct? (Multiple choice)

Question104: In the case of without enabling BGP path load sharing, which BGP routes will be sent to BGP neighbors?

Question105: What are the comparison items of the main switch election in the stack? (Multiple choice)

Question106: Which of the following IEEE 802.11 standards corresponds to Wi-Fi 6?

Question107: The default value of the ospfdr-prioritye command is 1, and the value range is 0~255.

Question108: ip ip-prefx List1 index 10 permit 10.1.0.0 24 greater-equal () less-equal 32 means that the first 24 bits of the matching network address are the same as 10.1.0.0, and the network mask length is greater than or equal to 26 and less than or equal to 32. (Use Arabic numerals)

Question109: Regarding BGP MED, which of the following descriptions are correct? (Multiple choice)

Question110: In the IS-IS broadcast network, which multicast MAC address does the Level-2 router use as the destination address for sending lH?

Question111: Which of the following statements about stack splitting is wrong?

Question112: As shown in the figure, SWA, SWB, and SWC all run RSTP. What are the port roles of the GEO/O/2 port on SWB and the GEO/D/1 port on SWC?

Question113: A company newly purchased a network device. As a network administrator, what method is usually used to configure the device for the first time?

Question114: Among the following BGP attributes, which are the recognized mandatory types of attributes? (Multiple choice)

Question115: Use the IP prefix list as shown in the figure for route matching. Which of the following routes can be matched?
ip ip-prefix List1 index 10 permit 192.168.1.0 24 greater-equal 24 less-equal 27

Question116: The command to configure VRRP preemption delay is:

Question117: Regarding the description of the summary automatic command and BGP aggregation, which of the following is incorrect?

Question118: Regarding the OSPF multi-process description, which is wrong?

Question119: The next-hop address of the routing entry in the routing table must be in the same network segment as the address of its direct connection port.

Question120: IPv6 link-local addresses can be generated through stateless automatic configuration.

Question121: When using a routing policy for route filtering, which routes the prefix of the following options in matching the following IP-Prefix will be denied out? (Multiple choice)
[HUAWEI] ip ip-prefix aa index 10 deny 0.0.0.0 24 less-equal 32
[HUAWEI] ip ip-prefix aa index 20 permit 0.0.0.0 0 less-equal 32

Question122: When two devices with the same priority compete for the role of Master at the same time, the device with the interface with the smaller IP address should be selected as the Master device

Question123: Which description is correct about the prefix list? (Multiple choice)

Question124: Which of the following attributes meet the following conditions? The BCP router may not support these attributes, but it will still receive these attributes and pass them to other peers. (Multiple choice)

Question125: BGPAS_PATH property is a selectable transition property.

Question126: R1, R2, R3, and R4 run IS-S, and the DIS Priority of their interfaces is shown in the figure. If the devices are started at the same time, () is elected as D1S. (Please fill in the device name, such as R1)

Question127: In a broadcast type network, what is the default time interval for DIS to send Hello?

Question128: Which types of messages does the BGP protocol support? (Multiple choice)

Question129: In the OSPF routing protocol, the asbr-summary command can be followed by the not-advertise parameter, which means that aggregated routes are not advertised.

Question130: As shown in the figure below, the firewall received the message from PC1 to PC2, which of the following statement is true?

Question131: Modify which of the following parameters, IS-IS neighbor relationship needs to be re-established? (Multiple choice)

Question132: Compared with routers and switchies, what are the unique modules for firewall forwarding?

Question133: One of the features of OSPF is that it only supports MD5 authentication.

Question134: For two routers running IS-IS, the adjacency relationship can be established only when the time interval of lH transmission is the same

Question135: Regarding BGP MED, which of the following descriptions are correct? (Multiple choice)

Question136: If IGP routing wants to become a BGP routing, it can only be done through the network command.

Question137: What are the main components of the SNAP address used by the IS-IS protocol? (Multiple choice)

Question138: On-board AC refers to the built-in AC capability of Huawei agile switches, which realizes the integrated management of wired and wireless services, and the unified management of wired and wireless business traffic is centralized by the agile switch

Question139: A certain network runs IS-IS. The L SP information of a router R4 in the network is shown in the figure. Which of the following statements is correct? (Multiple choice)

Question140: Which of the following information is carried in the BGP OPEN message? (Multiple choice)

Question141: Which of the following trees have multi-channel protocols? (Multiple choice)

Question142: Which of the following description of the OSPF default route is false?

Question143: 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:

Question144: About the OSPF calculating the shortest path tree phase, which of the following description is true?

Question145: After a switch is powered on to join a running stack system, this behavior is called stack join.

Question146: Which routes in the following options meet the following ACL conditions? (Multiple choice)

Question147: The router directly instructs the forwarding of data according to the forwarding table.

Question148: Which description is wrong about VRRP?

Question149: When the payload is an ICMPv6 packet, if the extended header is not considered, what is the value of the Next Header field in the IPv6 header?

Question150: In the RSTP network shown in the figure \. According to the configuration of the SWC in the figure, it can be judged that the type of the E0/1 port of the SWC is (). (Multiple choice)

Question151: When OSPF runs in a broadcast network, DR and BDR need to be elected.
Then in which of the following statements will DR and BDR elections be conducted?

Question152: As shown in the figure below, the RTC announces 10.1.1.0/24 into BGP, and the RTC is the client of the route reflector RTB, the router RT () will not receive the route entry 10.1.1.0/24 reflected by the RTB. (Use Uppercase)

Question153: There are many ways to establish a cluster for modular switches. What methods does Huawei modular switches support to establish a cluster? (Multiple choice)

Question154: Which of the following description of the Hello message in PIM-SM is wrong?

Question155: In a large-scale WLAN three-layer network, which of the following statements about the description of the DHCP server is wrong? (Multiple choice)

Question156: As shown in the figure, PC1 and PC2 belong to the same network segment of the host, which of the following description on PC1 and PC2 between IPv6 of the neighbor state is correct? (Multiple choice)

Question157: By default, for routers running IS-IS in a broadcast network, how many seconds does the DIS send CSNP packets?