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问题 #1

As shown in the picture, which of the following statements is correct?

A. R1 and R2 can establish an adjacency relationship, but cannot complete route calculation.correct

B. R1 and R2 can establish an adjacency relationship and complete route calculation.

C. R1 and 2 cannot establish an adjacency system, because the network configuration of the interface is inconsistent.

D. R1 and R2 cannot establish an adjacency relationship because the OSPF process numbers are inconsistent.

正确答案：A

问题 #2

Which BGP route will send BGP neighbors without BGP path load sharing enabled?

A. All BGP routes learned from all neighbors

B. Only the best route preferred by BGPcorrect

C. Only routes learned from IBGP

D. Only routes learned from EBGP

正确答案：B

问题 #3

Will setting the Community attribute of the route through the routing policy affect the route selection?

A. It can be indirectly affected. By setting the Community attribute of the route, the route can be classified, and then set different route selection-related attributes according to the category, such as Local_Pre, MED, etc., to achieve the purpose of affecting route selectioncorrect

B. It cannot be affected, because the Community attribute of the route is a non-transitional attribute and cannot be passed between routers

C. It can be affected indirectly. By setting the Community attribute of the route, the route can be classified, and then different attributes related to route selection can be set according to the category. These attributes only include Loacal_Pre and MED, so as to achieve the purpose of affecting route selection

D. After the router receives the routing update whose Commmity attribute is No_ Advertise, it will not advertise it outside the local A

正确答案：A

问题 #4

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?

A. The standby port on the SWC becomes the new root port and enters the Forwarding state after going through the Learning state

B. SWC re-elects the root port and directly enters the Forwarding state

C. The standby port on the SWC becomes the new root port and directly enters the Forwarding statecorrect

D. SWC re-elects the root port and enters the Forwarding state after Learning

正确答案：C

问题 #5

Which of the following is not the main function of NDP?

A. Path MTU Discoverycorrect

B. Neighbor Status Tracking

C. Duplicate address detection

D. Address

正确答案：A

问题 #6

Which of the following scenarios is the SD-WAN solution suitable for?

A. Enterprise branch interconnectioncorrect

B. Internal interconnection of enterprise data center network

C. Enterprise campus wireless network deployment

正确答案：A

问题 #7

The following is the output information of a router. The correct description of this information is:

A. The community attribute value carried by the destination network segment 1.1.1.0/24 is no-export, indicating that the routing entry cannot be advertised to any BGP neighbors

B. The community attribute value carried by the destination network segment 5.1.1.0/24 is no-advertise, indicating that the routing entry cannot be advertised to any other BGP peerscorrect

C. The community attribute value carried by the destination network segment 1.1.1.0/24 is no-export, indicating that the routing entry can be advertised to any BGP neighbor

D. The community attribute value carried by the destination network segment 5.1.1.0/24 is no-advertise, indicating that the routing entry cannot be advertised outside the local AS

正确答案：B

问题 #8

Regarding the default routes of each protocol, which of the following description is wrong?

A. BGP can deliver default routes

B. ISIS can issue default routes

C. OSPF cannot deliver the default routecorrect

D. Static default routing can be configured

正确答案：C

问题 #9

Which of the following statements regarding the LSA age field are true?

A. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.

B. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.

C. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.correct

D. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator ofthis LSA needs to regenerate an instance of this LSA again.

正确答案：C

问题 #10

The default priority of the VRRP device in the backup group is:

A. 0

B. 200

C. 150

D. 100correct

正确答案：D

问题 #11

What is the minimum total length of the address in IS-IS Byte?

A. 2

B. 8correct

C. 20

D. 16

正确答案：B

问题 #12

The command to configure the VRRP preemption delay is:

A. vrrp vrid 1 preempt-mode timer delay 20correct

B. vrrp vrid 1 timer delay 20

C. vrrp vrid 1 preempt-timer 20

D. vrrp vrid 1 preempt-delay 20

正确答案：A

问题 #13

Which of the following does not include the switch role in the stack system?

A. Main switch

B. Candidate switchcorrect

C. Slave switch

D. Standby switch

正确答案：B

问题 #14

What are the key components of building an IP wide-area bearer network solution together with Huawei NetEngine intelligent routers?

A. iMaster NCE-Fabric

B. iMaster NCE-IP

C. iMaster NCE-Campus

D. iMaster NCE-WANcorrect

正确答案：D

问题 #15

Which function does the switch control plane not include?

A. Business processing

B. Routing operation

C. System loadingcorrect

D. Traffic Statistics

正确答案：C

问题 #16

Regarding the description of configuring the security level of the security zone of the firewall, which of the following is wrong?

A. In the same system, two security zones are not allowed to configure the same security level

B. Security levels can only be set for custom security areas

C. Once the security level is set, it is not allowed to change

D. The newly created security area, the system defaults its security level to 1correct

正确答案：D

问题 #17

Which of the following statements about the forwarding plane of a switch is false?

A. Provides high-speed and non-blocking data channels.

B. Can collect packet statistics.

C. Can encapsulate and decapsulate packets.

D. Consists of main control boards and interface boards.

正确答案：D

问题 #18

The default priority of the VRRP device in the backup group is:

A. 0

B. 200

C. 150

D. 100correct

正确答案：D

问题 #19

Which of the following is the command to configure the VRRP preemption delay?

A. vrrp vrid 1 preempt-mode timer delay 20correct

B. vrrp vrid 1 timer delay 20

C. vrrp vrid 1 preempt-timer 20

D. vrrp vrid 1 preempt-delay 20

正确答案：A

问题 #20

Which of the following does not belong to IGP?

A. RIP

B. IS-IS

C. BGPcorrect

D. OSPF

正确答案：C

问题 #21

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

A. True

B. Falsecorrect

正确答案：B

问题 #22

Which of the following description about OSPF is correct?

A. OSPF LSA is regularly updated every 30 minutescorrect

B. OSPF floods an LSU every 5s

C. OSPF uses the Bellman-Ford algorithm, and each router runs the algorithm independently

D. OSPF itself has no confirmation mechanism, so 0SPP relies on the lower layer protocol, namely TCP confirmation.

正确答案：A

问题 #23

About the description about the OSPF calculating the shortest path tree stage, which is the correct?

A. The first stage calculates the Stub network segment, and the second stage calculates the router node and Transit network segment.

B. The first stage calculates routing nodes and Transit network segments, and the second stage calculates Stub network segments.correct

C. The first stage calculates the stub segment, and the second stage calculates the routing node.

D. The first stage calculates the routing nodes, and the second stage calculates the Stub network segment.

正确答案：B

问题 #24

In a broadcast network, what is the default interval for sending Hello by DIS?

A. 5s

B. 10s

C. 40s

D. 3.3scorrect

正确答案：D

问题 #25

Regarding the description of the routing tool, which of the following statement is wrong?

A. route-policy can only match routes and data packets, and cannot be used to modify routing attributes or data packet forwarding behaviorcorrect

B. Prefix list (ip-prefix) matching object is the destination address of routing information

C. The access control list (ACL) is used to match the IP routing information or the address of the data packet

D. as-path-filter is used to match the AS-PATH attribute in BGP routing information, so it can only be used to filter BGP routes

正确答案：A

问题 #26

To inject IGP routes into BGP routes, you can only use the network command.

A. TRUE

B. FALSEcorrect

正确答案：B

问题 #27

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

A. The initial multicast streams of all groups in the shared tree are forwarded to the receiver through the RP

B. One RP can connect to multiple multicast services at the same time, and one multicast group can correspond to multiple RPs.correct

C. RP can be responsible for the forwarding of several or all multicast groups. There can be one RP in the network

D. All members of the group and multicast sources that send multicast data to the group converge to the only R

正确答案：B

问题 #28

In a broadcast network, what is the default interval for sending Hello by DIS?

A. 5scorrect

B. 10s

C. 40s

D. 3.3scorrect

正确答案：AD

问题 #29

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?

A. 2001:FDC:1/64 2001:FDC::2/64

B. 2001:FDC::1/64 2001:FDC1::2/64correct

C. FD00:1AC0:872E::1/64 FDO0:2BE1:2320::1/64

D. FE80::1/64 FE80::2/64

正确答案：B

问题 #30

Which of the following is the configuration command for linkage between VRRP and BFD?

A. vrrp vrid 1 track bfd-session session-name 1 reduced 100correct

B. bfd-session vrrp vrid 1 track session-name 1 reduced 100

C. vrrp vrid 1 track bfd-session-name 1 reduced 100

D. track vrrp vrid 1 bfd-session session-name 1 reduced 100

正确答案：A

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