EMT Practice Test

1. Question Content...

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Question1: If an administrator wants to manage certain routes on the router during operations, the following tools are listed below. These routes can be flagged so that administrators can configure policies

Question2: As shown in the figure, all routing diagrams declare the loopback address in OSPF, where R2 does not return the address is 10022/32, it is advisable to tell AraD. The R3 loopback address is 10033/321001.1.0/24 external routing, in order to reduce the burden on the RI router, the configuration command is as follows:( Multiple choice questions)[Rlip ip-prefix 1 permit 001.1.024 [RLIJospfl [RL-ospf-1]filter-policy ip-prefix l import please ask the following description is correct?

Question3: Regarding the BGP/MPLS IP VPN network architecture, what is the error described below?

Question4: Is the following figure correct about NDP's process of resolving link-layer addresses?

Question5: BGP can only automatically aggregate routes whose source is Incomplete.

Question6: When DLDP detects the presence of a one-way link in the fiber, the default actions of Huawei equipment include: the DLDP state machine migrates to the Disable state, outputs Trap information, and automatically sets the interface to a blocked state.

Question7: Which of the following sequences can be matched by the regular expression [^100|200]$?

Question8: Communityflter has two types of basic group nature filters and advanced group property filters. Which of the following filters makes the Advanced Group Genus Filter more flexible than the Basic Group Attribute Filter to match group attributes?

Question9: The link quality of a company's network is poor, often failures lead to route oscillation, and even occasionally there are routing loops, in order to prevent the recurrence of these phenomena, the network administrator decided to deploy URPF in the whole network to improve the stability of the network

Question10: Which of the following routing tools is unique to BGP?

Question11: In OSPFv3, Router-LSA is generated by each router, which describes the interface address and cost of the router's links, as well as the RouteriD of the neighbor router.

Question12: When configuring ISIS zone authentication, which ISIS message will carry the authentication letter? ( Single choice questions).

Question13: The following description of the characteristics of cross-domain VN-Optionc is correct?

Question14: If all the public IP addresses are used by a company's intranet users to access the Internet using NAT's No-pat method, what will happen to subsequent intranet users who access the Internet?

Question15: When the ABR is a Type 5/7 LSA Switch router in the NSSA zone, then the ABR can be used against the Type 7 LSA The converted type 5 LSA is aggregated.

Question16: What is correct below about LDP synchronization in ISIS?

Question17: CMPv6 uses the Type field to identify the message type, and according to the value of the type field, we can divide the ICMPv6 message into two categories, one is the error message and the other is the information message

Question18: What information does the BGP Open message carry as follows?

Question19: The value of OSPF and BFD linkage is ? Radio

Question20: Router HW cannot access hosts in the remote network, router HW runs routing protocols and only pings the remote file server address 105401 on router HW with extensions through a default route remote network , the result of ping on the router HW is rendered as 'requ.' est time out', according to the above description, the error in the following analysis is ?

Question21: The rules for RR to publish routes break the rules for horizontal segmentation of IBGP, so it is possible to cause loops within the AS. What routing attributes does RR use to prevent loops?

Question22: Which of the following LSAs propagate in a single region only?

Question23: When a Layer 3 switch sends IP packets originating from one VLAN to another LAN, which field in the following options is overridden?( Single choice questions).

Question24: In MPLSVPN, in order to distinguish between IPv4 prefixes that use the same address space, the RD value is added to the IPv4 address, and the following options are described correctly as ?

Question25: As shown in the figure, PC1 and PC2 are hosts that belong to the same network segment, below about between PC1 and PC2 What are the correct descriptions of IPv6 neighbor states?

Question26: The following description of the characteristics of Huawei device Eth-trunk link aggregation is correct?

Question27: XLAN uses BGP EVPN to establish a tunnel, what type of message is used? ( Single choice questions).

Question28: When the IPv6 address of a host is configured with a stateless address configuration, and other parameters other than the address are obtained through DHCPv6, how to set the M and 0 bits in the RA message ?

Question29: Regarding the MPLS handling mode of TTL, the following description is correct?

Question30: Router RI and Router R2 run BGP. Both routers are in the AS65234 The route for router R2 exists in the BGP routing table of the router RI, but not in the IP routing table of the router RI . So what causes the problem to occur? (Single Choice Questions).

Question31: What are the following techniques for improving MPLS BGP VPN reliability?( Multiple choice question)

Question32: What command can be used to prevent users from accessing multiple devices through the HUB on the switch's access port?( Radio).

Question33: Regarding BGP/MPLS IP VPN routing interactions, the following description is incorrect?

Question34: The interface Serial0 of an existing router is in OSPF area 1, and the interface Serial0 is set to Silent interface.
So what kind of impact will this setting have

Question35: The following description of VLANs in Ethernet is correct?

Question36: The following statement about the IS-IS protocol is incorrect?

Question37: In a shared network, what mechanism does PIM-SM use to prevent duplicate traffic?( Single choice questions).

Question38: If the PIM-SM protocol is running in a multicast network , you need to configure RP, and the configuration equation of RP is divided into dynamic RP and static RP. The following configuration description of the RP is correct (radio).

Question39: Regarding IPv6 over IP4(19) road, the following statement is correct

Question40: For the description of firewall security zones, the following statement is correct?

Question41: If four routers run ISIS and have established an adjacency relationship, and the area code and router rank are marked as shown in the figure, what is the cost value of R4 reaching 10022/32?

Question42: s the following description of THE MUX VLA N in huawei switches correct?

Question43: As shown in the figure,

in the context of IPv4 and IPv6, the SEL field in the NET address of the ISIS is always valued as 00?

Question44: As shown in the figure, which of the following options satisfies two routers to establish an ISIS neighbor?( Single choice questions).

Question45: The following statement about isis protocol LSP messages is correct

Question46: Two VTEPs in an XLAN can identify a VXLAN tunnel, and this VXLAN tunnel between the VTEPs will be covered by two NDEs is common to all VNI.

Question47: LDP messages are exchanged between LDLRs running the LDP protocol, and LDP messages can be divided into four types according to function, which of the following is not an LDP message type ?

Question48: Regarding the BGP ring protection mechanism, the following description is correct?

Question49: The switch uses IPSG technology to verify the source address of the IP packet, and the verification matrix used by the IPSG is obtained through the ARP resolution process in the listening network

Question50: Use ping-ax-cY-sZ-vpn-instance M 105162, which has the meaning of

Question51: Network managers can use CAR technology in traffic policing. What of the following technologies can be applied in CAR?

Question52: In the multi-level RR scenario, the first-level RR will be connected to a large number of second-level R, which may cause the BGP circuit of the first-level RR to overflow from the table Risk of R BGP routing table overflow?( Radio).

Question53: View the IGMP configuration of the interface on the router RTA as follows, and the information about the operation of the RTA is incorrect

Question54: A router receives a BGP route with the community attribute NO-Export , how will the router handle the BGP route?

Question55: As shown in the figure, a company wants to achieve secure mutual access between the head office and branches through MPLSVPN, and at the same time requires that the IPN traffic of the branch bank must be forwarded through the head office to achieve traffic monitoring

Question56: The following statement about the VPNv4 address is wrongly described as ?

Question57: Regarding the domain-authentication-mode md5 hello command in the ISIS process, the correct explanation is
?

Question58: The following is correct about the LSA of OSPFv3

Question59: What descriptions of the OSPF protocol are correct?

Question60: Regarding the description of the encapsulation format of the labels in MPLS, the correct one is ?

Question61: Run the SSM across the entire HW IP multicast network. The following about SSM understands correctly?( Multiple choice question)

Question62: What are the following statements about 8021x, RADIUS, and HWTACACS certification? ( Multiple choice questions).

Question63: Regarding the description of the permanent multicast address, the error is ?

Question64: RTA is the source DR router, RTB is the RP router, and the multicast source sends multicast data to the RTA, but the PIM is not visible on the RTB Register the multicast source to which the message is registered, then the possible causes are ?

Question65: If we have a VPN instance configured on a router, if we need to view the VPN route on a Huawei router, which of the following commands should we use?

Question66: A campus deploys OSPF to achieve network interoperability, and an engineer configures R2 as shown in the figure, then the following description of the LSA in the OSPF network is wrong

Question67: Router RL and Router R2 run BGP both routers are in the AS65234 The router R2 route is present in the BGP routing table of router RI, but not in the P of router R1 road

Question68: The following description of BGP ring protection is correct

Question69: The Option field in OSPEv3 appears in all LSAs

Question70: The following description of the Lsp shard extension for ISIS is correct?

Question71: 0SPFV2 is running on the IPV4 network IGP: OSPF3 is running in the IPV6 network, OSPF35 OSPFV2 has the same message type. Includes hello messages, DOD messages, LSR messages, LAU messages, and SAX messages about OSPP The following statement is correct?

Question72: The following about BGP routing, describing the error, is ?

Question73: As shown in the figure, an engineer uses four routers to test the interoperability of branch networks, where R1, R2, and R3 in branch 1 deploy OSPF Network interoperability is implemented, and R, R3, R4 in Branch 2 is deployed is-IS to achieve network interoperability. Now that the engineer wants to implement R1 access to R4's loopback address, which of the following actions will meet this requirement?

Question74: Which IPV6 address would you ping to confirm that OSPFv3 is capable of pastoring unicast messages over the link?

Question75: Which SNMP message type sent to NMS reports events that are reliable? ( Single choice questions).

Question76: The following statement about IPSec VPN is correct

Question77: Regarding the DSCP field, the following statement is incorrect: single selection

Question78: For a non-directly connected EBGP neighbor to establish properly, what configurations must be included as follows?

Question79: When there are multiple redundant links in an IS-IS network, multiple equivalent routes may occur. Regarding equivalent routing within an IS-IS network, which of the following descriptions is wrong?

Question80: The address resolution feature for NDP in the following description is incorrect?

Question81: Assume that BGP/MPLSIPVVPN, OSPF, LDP, and static routing protocols are already enabled on the PE router . Which of the following protocols need to enable GR on PE in order to get NSF functionality?
(Multiple choice questions).

Question82: The following statement about the concept of multicast is wrong?

Question83: An engineer used 2 routers to test IPv6 services and simulated the interconnection between headquarters and branches by running BGP4+. The network logic topology is shown in the figure, regarding the delivery of IPv6 routes between two devices, which of the following statements is wrong?

Question84: As shown in the figure, a company sets up an OSPF network. The links in the figure all form OSPF adjacencies, and all OSFP devices declare their own loopback addresses. One day SIR2 The two links of the S2AR1 suddenly failed, and in order to detect if the network was operating properly, the engineers performed a device status check, which is correct as described below

Question85: The Path Selection tool can define multiple entries, which of the following tools will automatically generate a rejection of any entries at the end of the slot

Question86: What is the significance of reserved multicast address 224000~22400255?

Question87: In an HWIP multicast network, where multiple sources exist and each source has several receivers, which protocol allows source-to-RP traffic and RP-to-receiver traffic to share the same tree 2?

Question88: What are the following advanced features supported by BGP EVPN?

Question89: What messages does an NMS (Network Management Station) running SNMPv1 send to the agent?

Question90: You want to set the DSCP value of VolP traffic in HW network devices to EF. According to the differentiated service model RFC, traffic token EF should be set to:

Question91: In a data communication session between two hosts, which level does the session layer of the oSI model of the host on one end communicate with the osl mode of the host on the other end?

Question92: What commands are related to BGP route reflectors?( Multiple select).

Question93: As shown in the figure, SWA, SWB, SWC all run RSTP, GED/O/2 on SWB Ports and GEO/0/1 ports on SWC have a port role of ? Radio

Question94: The router port to which the policy is applied has been idle for about 10 seconds, and there is a huge burst of c1 type coming in an instant, so how many bytes will the packets that are colored green?

Question95: The following statements about the VRRP protocol are correct (multiple choice).

Question96: Auto-negotiate mode is to obtain the maximum interface rate and operating mode, the network administrator configures all Ethernet interface rates of a working switch to 10OMbps, and the operating mode is configured as Full-duplex, when a network card is configured After the auto-negotiate workstation is connected to the switch, the negotiation result is that the interface rate is 10OMbps and the working mode is half-duplex, which of the following explanations is the most reasonable for this phenomenon?

Question97: After BGP introduces routes for other protocols, the next hop in the BGP routing table is consistent with the next hop of the introduced routing protocol

Question98: Which nationality meets the following two conditions: 1] BGP Router A can choose whether the Ulpdate message is based on the nationality. ( ) If Router B receives a Updae message containing a cross-hatch, run-by B does not have an identified solidity, but will also contain a multifaceted] Ulpdate retracts the advertisement to Router C.
Router C may recognize and apply this attribute. (Multiple choice questions).

Question99: VPN instances are also known as VPN routing forwarding tables (PN Routing and Forwarding table), and there are multiple route forwarding tables on the PE, including a public route forwarding table, one or more VPN route forwarding tables, and VPNv4 Route forwarding table.

Question100: There are two Communily filters: ip comimuniy-lite lpemit 101201 ip community fiter 2permit101 ip commmuriyfilter 2pemit21 Regarding the above ommuniyfiter, the correct description is ?( Multiple choice questions).

Question101: Is the following description of ospf virtual links correct?

Question102: In an MPLS BGPVPN networking that does not enable MPLS penultimate hop pop-up technology. When the message reaches the last hop PE, the message has two layers of labels, and the two layers of label values can be the same.

Question103: In order to reduce the number of OSPF routes in certain areas, the OSPf protocol has developed special area functions, and the following description of the characteristics of OSPF special areas is correct

Question104: Two routers, connected together through the serial port, but can not ping between each other , now check the port status as follows: Can the following information determine what the cause is?

Question105: In an MPLS IBGP VPN environment, if tags are distributed only through BGP, LDP, the MPLS tags for a message can be up to two layers of tags.

Question106: The following message about OSPFV3 is correct?

Question107: ??? aggregate ipv4-address { mask/masklength }[as-set lattribute-policy route-policy-namel ldetail-suppressedlorigin-policy route- in policy-name2[suppress3policy route-policy-name3], multiple parameters can be used to influence summary routes and their results. The correct description about the command is ?( Multiple choice questions).

Question108: In an MPLS VPN network, different CE devices exchange routing information with the same PE device using different routing protocols, and different CE devices use routing protocols that are independent of each other

Question109: What is the wrong description of the function of OSPFv3 protocol authentication?

Question110: MACsec provides users with secure MAC layer data sending and receiving services. Which of the following is not a service available by ACsec?

Question111: The following statement about is the ISIS protocol LSP message is correct

Question112: If you need to configure routing policies on one router. Which of the following parameters does an administrator use to route when deploying a routing policy?( Multiple select).

Question113: SNMPv3 defines which security features

Question114: Which of the following attacks are DoS (Denial of servioe) attacks?( Multiple choice question)

Question115: The following description of Link ID, Data, Type, and Metirc in Router-LSA is correct :( Multiple select).

Question116: Regarding the WRR (Weight Round Robin) description of the error is ?( Multiple select).

Question117: Is the following GR description of ISIS correct?

Question118: The following description of the GVRP interface registration mode in Huawei switches is correct?

Question119: The following description of Filter-Policy is correct?( Radio neck).

Question120: There can be multiple nodes under a route -policy, different node numbers are identified by nodes, and each node can have multiple if-match and apply clauses, which of the following descriptions are wrong ?

Question121: In an MPLSVPN network, when a packet enters the Internet and is forwarded, it is encapsulated with two layers of MPLS tags, and the processing of the packet in the following options is described correctly?

Question122: If you run PIM-SM in a multicast network, you need to build a multicast forwarding tree between the multicast source and the receiver to enable the receiver to receive the multicast effect, so what are the following options for the correct tree sketch for the build?

Question123: BGP routing policies can control the publication and acceptance of routes

Question124: In the following topology diagram, R1 can access the Internet through R2 and R3, R1 and R2, R1 and R1 An EGP connection is established between R3 , and R2R3 belongs to the same AS, each via BGP Publishing a default route that requires R1 to visit lnternet's traffic preference R2, can the following practices be achieved?

Question125: What is wrong with the following statement about digital certificates?

Question126: In the forwarding table of the switch, a MAC address can correspond to only one outlet at a time

Question127: There is a concept of FEC-Forwarding Equivalence Class in MPLS, so what criteria can FEC not allocate based on?

Question128: A company network runs the OSPF protocol, a project in order to understand the OSPF mechanism in the network to perform packet transfer operations, the following description of ospf messages is correct?

Question129: WRED is configured on the newly deployed router HW The following description of the WRED feature is correct as ?( Multiple select).

Question130:

Question131: Dual-bucket, two-speed is used in traffic governance, where the number of tokens in a C bucket is TC and the number of tokens in a P bucket is TP. When a message of length B enters, which of the following sentences is correctly described? (Multiple choice questions).

Question132: The following description of the CHAP authentication function in the PPP protocol is correct?( Multiple choice questions).

Question133: What messages can Huawei equipment suppress traffic for?

Question134: If multiple candidate RPs are configured in a multicast group, which of the following parameters does the RP that elect the group from multiple candidate RPs need to be compared?

Question135: The switch SWA and SWB are connected together by 2 Ethernet links, where the switch SWA has the following interface configuration:

Question136: The DHCP protocol assigns to clients-some TCPIP-related parameter information-in the process DHCP defines a variety of messages that are encapsulated at the transport layer :(sortic).

Question137: Regular expressions can be used for Community-filter and AS-path-filter definition attribute types for route filtering.

Question138: ?? Route ? Policy ??:ip community-filter Ipermit 100: 1 ip as-path-filter 2 permit ^I00$ route-policy test permit node 10 if-match communityfilter 1 if-match as-path-filter 2 apply as-path 200 Is the above configuration description correct?

Question139: When deploying BGP/MPLS IPVPN, OSPF's VPN route tag is not present
The extended properties of MP-BGP are passed only locally, only locally, and only meaningful on routers that receive MP-BGP routes and generate OSPF LSAs.

Question140: Regarding route introduction, what is the following description of the error?

Question141: As shown in the topology diagram, all interfaces of the router in the figure are enabled with the ISIS protocol, and the following statement is correct.

Question142: You are now troubleshooting a LAN, and you suspect that the error is due to a mismatch in the work mode.
Which switch interface error indicates that the 10/100/100O IEE gigabit interface operating mode does not match?
( Multiple choice questions).

Question143: The router is running both OSPFv3 and ISIS, and the OSPFv3 route needs to be introduced to ISIS, which of the following ingestion configurations is correct:( Multiple choice questions).

Question144: As shown in the figure, private network routing information is exchanged between PEl and PE2 and their respective CE via OSPF, and the same is configured on PEI and PE2 Domain D.
When routing is introduced from BGP to OS9PF on PE2, the following limited types of LSAs may be passed to E2?

Question145: RD is used to distinguish the same IP address in different VPNs, how many bits does RD contain ? (Single choice)

Question146: A medium-sized campus network manages the network through the SNMP protocol, and the campus is highly network-safe, so which version of SNMP is recommended for management?

Question147: The following statement about isis a route leak of ISIS is correct?

Question148: Comparisons for primary switch elections in the stack include ?

Question149: Among the routing policy tools commonly used by BGP, which ones can be used to filter routes?

Question150: Which of the following tools cannot be referenced directly by the If-match clause in Route-policy?

Question151: The following statement about EVPN Type5 routing is wrong?( Single choice questions).

Question152: The following description of the characteristics of multi-instance CE is ?

Question153: Is the following description of the differences between IGMP name versions correct?

Question154: When there are multiple rule rules for ACLs in VRP, which of the following statements is true regarding the order of matching? Single choice questions).

Question155: As shown in the figure, there are two IP6 networks that can access the IPv4 network, and the IPsec tunnel needs to be established between the two IPv6 networks to communicate, which of the following requirements?(). Single choice questions).

Question156: A company deployed SSM multicast, in order to save the bandwidth consumption of multicast data in the LAN, the network administrator made the following configuration on the switch

Question157: The following description of the attributes of BGP is correct? Radio

Question158: The following is the correct description of the aggregation of BGP (radio).

Question159: RD is used to distinguish between the same IP address in different VPNs, and how many bits (radio) the RD contains

Question160: /R1Jospf1lRL-osp- jarea.2[RLospf-1-arca-0002]network1001310000 As shown in the configuration, the administrator configured OSPF but RI on R1 You cannot learn routes for other routing rings. Then the possible cause is the question).

Question161: The existing router HWl running BGP is configured with both IBGP neighbors and EBGP tenants. The following descriptions about IBGP Neighbors and EBGP Neighbors are correct?

Question162: In the topology shown in the figure. Running the OSPFv3 protocol over the entire network does not produce what type of LSA on R1 without external route introduction?

Question163: Regarding the certification of the ISIS protocol, there is a correct statement

Question164: The following description of BGP load sharing is wrong with ?( Multiple choice question)

Question165: An advanced access control list is a sequence of rules consisting of permit |deny statements that can match IP messages based on which attributes ?(). Multiple select).

Question166: Regarding BGP route filtering, the following description is wrong?

Question167: In addition to stateless address autoconfiguration, IPV6 devices can also obtain addresses, gateways, DNS, and other information through DHCPv6

Question168: The Option field in OSPFv3 appears in all LSAs

Question169: As shown in the figure,

Question170: Router HW1 and Router HW2 connect Network A and Network B, respectively. As shown in the figure below, if you want to set up an IPsec VPN between router HWI and router HW. (single selection).

Question171: In a multicast network, what causes multicast traffic to not forward properly?

Question172: If a DR needs to be elected between multicast routers running PIM-SM to be responsible for the sending and receiving of source or member multicast data, which one is described correctly below for the DR election rule?

Question173: ?? ipIp- prefoi p prefierame lndeindeoxrunmber)( pemit demy)ip+4adrssmasklengh gratrequa grater-cqual abel]lescqualesequl ole) for * Pprefofiier? If a pre-list of tooequal has been specified, but the greater-equal has not been specified, then how much of the prefix's range is sufficient?(). Radio neck).

Question174: As shown in the figure, three switches S1, SW, and SN3, where SWI is the root bridge, and link congestion occurs between SI and SW2, SWD cannot receive the configuration BPDU sent by the root bridge, which spanning tree protection mechanism does the administrator need to configure to prevent the problem caused by link congestion?( Single choice questions).

Question175: Huawei's two switches SWA and SWB are connected together by 7 Ethernet cables, and static link clustering is configured, and the corresponding port on the switch SWA is Ethernet 1/0/1 ?Ethernet1/0/2?Ethernet
1/0/3?Ethernet 1/0/4?Ethernet 1/0/5, Ethernet1/0/6, Ethernet 1/0/7, configured in order of port if the switch SWA, SWB supports only 6 ports per aggregation group

Question176: The advantages of building a campus network using stacking, clustering technology include which of the following?( Multi-select)

Question177: Regarding how the device handles messages in the MPLS network model, what is the following description of the error?

Question178: Is the following statement about VLAN aggregation correct?

Question179: What does IPV6 enable topology ipv6 mean under IS-IS protocol view?

Question180: Which of the following parameters should be modified to re-establish the is-IS neighbor relationship?

Question181: The main routing policy tools that BGP can use are Filter-policy and Route-policy, where Fate-policy can only filter routes and Route-policy can only modify routes

Question182: Both the CSNP packet of ISlS and the DD packet of OSPF have a role in the MA network, describing the role of the link state database summary, which is correct compared to the following statements of these two types of messages

Question183: OSPF fast convergence is an extended feature to improve the convergence speed of routing, in which PRC works by speeding up routing computation by performing path calculations only on the affected nodes when the network topology changes.

Question184: As shown in the figure, SWA, SWB runs the PSTP protocol, and Cost of Path remains the default without modification, so the following statement is correct

Question185: In VXLAN scenarios, what features can be turned on to reduce flooding of ARP messages between VTEPs?( Multiple select).

Question186: A VRRP virtual router configuration VRID is 3 and the virtual IP address is 100 1. 1. 10, so what is the virtual MAC address?

Question187: What kind of scenario can use AS one path and one filter?

Question188: The correct description about the BGP reflector is ?( Multiple choice questions).

Question189: Which of the following scenarios is not suitable for deploying interface policy routing?