H12-221-ENU by Huawei Valid Free Exam Practice Test

Question 1

When you view the configuration on the root switch that runs the MSTP domain on the network, the following command is obtained. As shown in the figure, the network size of the MSTP domain where the root switch resides is estimated.

A. Less than 40 units B. Less than 30 units C. Less than 10 units D. Less than 20 units

Correct Answer: B

Question 2

In the Established state, the BCP can exchange Update, Keepalive, Route-refresh, and Notification messages with the peer.

A. FALSE B. TRUE

Correct Answer: A

Question 3

Which of the following description of the routing policy supported by OSPF route filtering is wrong?

A. as-path filter B. access-list C. prefix-list D. route-policy

Correct Answer: A

Question 4

Different network types of the OSPF protocol can form adjacencies in the FULL state.

A. FALSE B. TRUE

Correct Answer: B

Question 5

In an OSPF broadcast or NBMA network type, a device with a large router priority does not necessarily become a DR.

A. False B. True

Correct Answer: B

Question 6

Which multicast MAC address is used by the Level-2 router as the destination address for sending the IIH in the IS-IS broadcast network?

A. 0180-c200-0014 B. 0100-5E00-0002 C. 0180-c200-0016 D. 0180-c200-0015

Correct Answer: D

Question 7

About the description of well-known attributes in BGP, which is correct? (Multiple Choice)

A. BGP must recognize all well-known attributes. B. Well-known attributes are identifiled by all BGP routers, but it does not need to exist in the Update message. C. The well-known attributes are divided into two types: recognized mandatory and optional transition. D. Well-known attributes are identifiled by all BGP routers and must exist in the Update message.

Correct Answer: A,B,D

Question 8

Compared to STP, the RSTP protocol defines different port states, including Discarding and Learning. About the description of the two port states, the correct is: (Multiple Choice)

A. The ports in these two states do not forward data frames. B. All ports in Discarding state and Learning state do not learn MAC address table C. Ports in the Learning state do not learn the MAC address table. D. Ports in Discarding state do not learn the MAC address table.

Correct Answer: A,D

Question 9

In the OSPF routing protocol, the asbr-summary command can be followed by the not-advertise parameter. The meaning of this parameter is that the aggregated route is not advertised.

A. FALSE B. TRUE

Correct Answer: B

Question 10

Regarding the role of route filtering, which of the following description is correct?

A. Can not avoid the sub-optimal routing caused by the introduction of rabbit routes B. Avoid routing loops caused by inappropriate route feedback C. Can be used for precise route import and route advertisement control D. Unavoidable routing loop caused by inappropriate routing feedback

Correct Answer: C

Question 11

There can be multiple nodes in a routing policy. Different node numbers are identified by node. Each node can have multiple if-match and apply clauses. Which of the following descriptions are wrong?

A. The relationship between different nodes is "and" B. The relationship between different nodes is "or" C. The relationship between the if-match clauses under each node is "or" D. The relationship between the if-match clauses under each node is "and"

Correct Answer: A,C

Question 12

The Network mode introduces the existing routes in the IP routing table into the BGP routing table one by one, which is more accurate than the import method.

A. FALSE B. TRUE

Correct Answer: B

Question 13

Compared with STP, the RSTP protocol defines different port roles. which description about the standby port and backup port in RSTP are correct? (Multiple Choice).

A. The backup port is the port that is blocked because it learns that other bridges send to configure BPDUs. B. The provisioning port is the port blocked by learning the configuration BPDUs sent by other bridges. C. The backup port is the port that is blocked because it learns to send it to the configuration BPDU. D. The standby port is the port blocked because it learned to send it to the configuration BPDU.

Correct Answer: B,C

Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) - H12-221-ENU Exam Practice Test