Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) - H12-261-ENU FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

What improvements have been made to the IGMPV2 protocol compared to IGMPV1? (Multiple Choice)

A. Added off-group message B. Added maximum response time field C. Added specific group query message D. Added specific source group query message

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 2

On an MPLS VPN network, different CEs can use different routing protocols to exchange routing information with the same PE. These routing protocols are independent from one another.

A. True B. False

Discussion 0

Correct Answer: A Vote an answer

Question 3

Which of the following statements about RADIUS is correct?

A. MAC authentication does not require a username and password, so you cannot use RADIUS to authenticate a user. B. RADIUS supports both wired and wireless access methods. C. RADIUS protocol authentication, authorization, and audit separation. D. RADIUS authentication and Portal authentication cannot be used together. Because Portal authentication is usually used, the Portal server can be used to authenticate users.

Discussion 0

Correct Answer: B Vote an answer

Question 4

Assume that the BGP/MPLS IPv4 VPN of Static routing and OSPF, LDP are configured on the PE to enable the NSF function. Which of the following protocols are required to configure to enable the GR function on the PE? ( Multiple Choice)

A. BGP B. OSPF C. MPLS LDP D. Static routing

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 5

Non-Stopping-Forwarding (NSF) and Non-Stopping Routing (NSR) are two solutions for high reliability. The following statements which are correct?

A. After the NSF is enabled, the router performs the master/slave switchover. The routing table and the forwarding table remain unchanged. Therefore, traffic is not lost during the GR time. B. NSF routers do not need to support NSF through specific packet negotiation. C. NSR routers need to negotiate NSR support through specific packet negotiation. D. After the NSR is enabled, if the main control board fails when the service batch backup is not completed, the NR switch cannot be completed.

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Correct Answer: A,D Vote an answer

Question 6

As shown in the following figure, R1 and R2 establish the neighbor relationship of Level2. The key configuration is as follows. Which of the following statement about the R2 route entry is correct? (Multiple choice)

A. 2021::/64 router will appear in the IP routing table. B. 2019::/64 router will appear in the IP routing table. C. 2020::/64 router will appear in the IP routing table. D. 2022::/64 router will appear in the IP routing table.

Discussion 0

Correct Answer: B,C,D Vote an answer

Question 7

As shown in the figure, three switches SW1, SW2 and SW3, where SW1 is the root bridge, the link between SW1 and SW2 is congested, and SW2 cannot receive the configuration BPDU sent by the root bridge. Which spanning tree protection mechanism does the administrator need to configure to prevent link congestion?

A. BPDU protection B. TC-BPDU protection C. Root protection D. Loop protection

Discussion 0

Correct Answer: D Vote an answer

Question 8

RD is used to distinguish the same IP address in different VPNs. How many bits does the RD contain?

A. 128 B. 32 C. 64 D. 16

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Correct Answer: C Vote an answer

Question 9

Regarding the cross-domain VPN-OptionB scheme, which of the following description is wrong?

A. An IP-EBGP neighbor relationship needs to be established between the two ASBRs. B. During the packet forwarding process, exchange the private network LSPs of the VPN on the two ASBRs. C. Exchange the outer label of the VPNv4 route between the two ASBRs. D. The cross-domain VPN-Option B scheme is not limited by the number of interconnected links between ASBRs.

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Correct Answer: C Vote an answer

Question 10

The OSPFv3 Option field appears in all LSAs.

A. True B. False

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Correct Answer: B Vote an answer

Question 11

As shown in the figure, R1, R2, and R3 run OSPF at the same time and announce their respective loopbacks. Which of the following description is wrong?

A. You can use the filter import command in Area0 to filter the loopback route of R3 on the R2. B. You can use the filter export command to filter the loopback route of R3 in Area1 on the R2. C. You can filter the loopback route of R3 by using filter-policy import on the R1. D. You can use the filter-policy export command to filter the loopback route of R3 on the R2.

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Correct Answer: D Vote an answer

Question 12

Which of the following types of routes are used to advertise external routes in BGP EVPN?

A. Type4 B. Type5 C. Type1 D. Type2 E. Type3

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Correct Answer: B Vote an answer

Question 13

Between the two directly connected devices that have established IBGP peers, run the shutdown command to shut down the interface of one of the devices. The BGP connection will not be disconnected immediately.

A. True B. False

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Correct Answer: A Vote an answer

Question 14

When you perform troubleshooting on a LAN deployed with Huawei devices, you find that there is a large number of unicast frames with unknown MAC addresses.
What is the biggest risk for the switches?

A. Exhausts memory for buffered frames. B. Available MAC address table entries in the system will be consumed. C. Increased power consumption. D. Exhausts available TCAM entries. E. Exhausts available bandwidth.

Discussion 0

Correct Answer: B Vote an answer