H31-611 by Huawei Valid Free Exam Practice Test

Question 1

Which of the following statements are true about the comparison between OSPF and IS-IS? (Multiple Choice)

A. DIS election in IS-IS is simple, preemptive, and can be predicted. DR election in OSPF is unpredictable
and non-preemptive. B. OSPF runs on the IP layer, and IS-IS runs on the data link layer. C. For IS-IS, a router belongs to multiple areas, but in OSPF, a router can belong to only one area. D. OSPF supports P2P/P2MP/NBMA/broadcast networks. IS-IS supports only P2P and broadcast
networks.

Correct Answer: A,B

Question 2

OSPF and IS-IS are similar in many ways. The OSPF backbone area is indicated by area 0. Which of the
following is used to indicate the IS-IS backbone area?

A. Area 49 B. No specific backbone area C. Area 1 D. Area 0

Correct Answer: A

Question 3

Which of the following factors does not affect the performance of the SDN network?

A. Routing loop B. Access control list C. Network congestion D. Non-optimal route

Correct Answer: C

Question 4

A trunk port on a switch allows packets from VLANs 3, 4, and 5 to pass, but only packets from VLANs 3 and
4 have tags. Which of the following may be the reason why packets from VLAN 5 do not have tags?

A. The port PVID is 3 and 4. B. During trunk port configuration, the port trunk permit vlan 3 4 command is configured. C. GVRP is enabled on this port. D. The port PVID is 5.

Correct Answer: A

Question 5

Regarding the CE series switches on an SDN network, which of the following statements are true about their
application in data centers? (Multiple Choice)

A. A CE series switch can connect to a server as a TOR. B. The network between TORs and core switches must be an ECMP-enabled Layer 3 network. C. The network between TORs and core switches must be a Layer 2 network that runs MSTP to prevent
loops. D. The network between TORs and core switches can be either a Layer 2 or a Layer 3 network.

Correct Answer: B,D

Question 6

What kind of packet is used by BGP to transmit version number and AS number information?

A. Update B. Notification C. Keepalive D. Open

Correct Answer: B

Question 7

In BGP, which of the following are methods for loop avoidance?

A. In the next-hop attribute of a route, the route's next hop is recorded. B. In a route's AS-Path attribute, all ASs along the path are recorded. C. The Origin attribute of a route records the source from which the route was imported D. The MED attribute of a route affects the outbound interface selection of another AS.

Correct Answer: B

Huawei HCIA-SDN V1.0 - H31-611 Exam Practice Test