[2026] Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network)

문제1

Port isolation enables the isolation of communication between different ports within the same VLAN of the same switch.

A. True

B. False

정답: A

문제2

The Hold time carried by the BGP neighbor PeerA in the Open is 90s. The Hold time carried by the PeerB in the Open is 30s. The interval between the PeerA and the PeerB after the connection is successfully established is:

A. Do not send Keepalive packet

B. 90s

C. 10s

D. 30s

정답: C

문제3

When an operating OSPF router receives an LSA and the LSA does not exist in its link state database, how does the router handle this LSA?

A. This LSA will be immediately flooded to other OSPF neighbors.

B. The LSA is installed in its own link state database, and then this LSA is acknowledged by multicast.

C. The router will silently discard this LSA without returning any messages.

D. Check the age of the LSA to see if it expires.

정답: D

문제4

The following description of the optional attributes in BGP is correct: (Multiple Choice)

A. In addition to the recognized attributes, each UPDATE message can contain one or more optional attributes, and each BGP Speaker requires support for these optional attributes.

B. The optional transition attribute is that the BGP router can choose whether to carry this attribute in the Update message. If the received router does not recognize this attribute, it can forward it to the neighboring router. The neighbor router may identify and use this attribute.

C. The optional non-transition attribute is that the BGP router can choose whether to carry this attribute in the Update message. If the receiving router does not recognize this attribute, it will discard this attribute and no longer need to forward it to the neighboring router.

D. Optional attributes are divided into optional transitions and optional non-transitions.

정답: B,C,D

문제5

Which of the following descriptions are correct about BGP Local-Preference? (Multiple Choice)

A. The default value of BGP route Local-Preference is 100.

B. In the BGP routing rules, the priority of the MED is higher than the Local-Preference, that is, the priority is compared with the MED.

C. BGP Local-Preference is usually used in the routing rule policy to control how data flows into As

D. In the BGP routing rule, the Preferred-Value has a higher priority than the Local-Preference, that is, the Preferred-Value is prioritized.

정답: A,D

문제6

According to RFC 2328, for a router running OSPF, from the initial process to the process of forming an adjacency with a neighbor, which is correct?

A. Down , Init , 2-way , Exchange , Exstart , Loading , Full

B. Down , Init , Exstart , Exchange , Loading , Full

C. Down , Exstart , 2-way , Init , Exchange , Loading , Full

D. Down , Init , 2-way , Exstart , Exchange , Loading , Full

정답: D

문제7

About the advantages of IGMP snooping, which of the following description is correct? (Multiple choice)

A. IGMP consumes a large number of CPUs of Layer 2 switches and is not recommended.

B. The security of multicast information is enhanced.

C. Provides convenience for individual billing for each user host.

D. Reduce broadcast packets on Layer 2 networks and save bandwidth.

정답: B,C,D

문제8

As shown in the figure, all devices operate in the MPLS network. The downstream switch SWA finds the label mapping message of 1.1.1.1 to the SWB. The SWB receives the label distributed by the downstream switch SWA and then distributes the label to the SWC. The SWC receives the label sent by the SWB. Then send it to SWB to send the label.
Then, what are the label control mode and the label distribution mode in the network respectively?

A. Independent+DU

B. Ordered+DU

C. Independent+DoD

D. Ordered+DoD

정답: B

문제9

The following is part of the output information of the router RTD, the correct description of the output information is:

A. Configure the interval for sending IGMP query messages on this interface to be 60s.

B. The version of IGMP enabled on this interface is version 1.

C. IGMP status of this interface is down.

D. The maximum response time 0s contained in IGMP query message on this interface.

정답: D

문제10

BGP recognized community attributes include: (Multiple choice)

A. NO-EXPORT(OxFFFFFFOI)

B. NO-ADVERTISE(OxFFFFFF02)

C. Advertise

D. Interne

정답: A,B,D

문제11

BGP recognized community attributes are: (Multiple Choice)

A. NO-ADVERTISE ( 0xFFFFFF02 )

B. NO-EXPORT ( 0xFFFFFF01 )

C. Advertise

D. Internet

정답: A,B,D

문제12

The following description of EGP and IGP, which is wrong?

A. IGP focuses on controlling the propagation of routes and selecting the optimal route.

B. EGP itself is an ancient protocol.

C. EGP is a routing protocol that runs between AS.

D. IGP is a routing protocol that runs inside an AS.

정답: A

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