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

QUESTION NO: 1
For IPv4, report the address space of the SSM range allocated by IANA, which of the following addresses are legal?

A. 232. 137. 1. 1/8 B. 232. 137. 1. 1/24 C. 225. 137. 1. 1/8 D. 192. 168. 1. 1

Correct Answer: A

QUESTION NO: 2
Which description of OSPF route aggregation commands is correct?(Multiple choices)

A. not-advertise is the default parameter of the abr-summary command. That is, if the abr-summary command is not specified for advertise or not-advertise, the default is not-advertise. B. advertise is the default parameter of the abr-summary command. That is, if you configure the abr-summary command without specifying not-advertise, it defaults to advertise. C. asbr-summary command is a command in the OSPF view. D. The abr-summary command is a command in the OSPF area view.

Correct Answer: B,C,D

QUESTION NO: 3
Which of the following descriptions are correct about the preemption mechanism in the static LACP mode? (Multiple Choice)

A. When a high-priority interface recovers due to failover and then resumes, if the preemption is enabled, the restored high-priority interface will become active again after a delay; if it is not enabled, Preemption, the interface does not automatically become an active interface. B. The preemption mechanism of the static LACP mode is enabled by default. C. To prevent the entire link from being unstable due to frequent link status changes, set the preemption delay. D. If the preemption delay configuration on the two ends is different, the system selects the value with the larger preemption delay on both sides as the preemption delay.

Correct Answer: A,C

QUESTION NO: 4
The description of OSPF ASBR-Summary-LSA, which is incorrect?

A. The Advertising Router field are the same in all areas of ASBR-Summary-LSA. B. Link State ID indicates the ASBR's router ID. C. Advertising Router indicates the ABR Router ID. D. Metric indicates the OSPF cost for the ABR reach to the ASBR.

Correct Answer: A

QUESTION NO: 5
The AS-Path attribute records all the AS numbers that a route passes through from the local to the destination address in vector order. Therefore, the neighboring AS numbers farthest from the local AS are listed in the front, and the other AS numbers are arranged in order.

A. FALSE B. TRUE

Correct Answer: A

QUESTION NO: 6
Which of the following description of OSPF is correct?

A. OSPF uses the Bellman-Ford algorithm, and each router runs the algorithm independently. B. OSPF floods an LSU every 5s C. OSPF itself does not have a certain mechanism, so OSPF relies on the upper layer protocol, that is, TCP confirmation is performed. D. OSPF updates regularly every 30 minutes

Correct Answer: D

QUESTION NO: 7
About the description of static LACP mode, which of the following statement is wrong?

A. In static LACP mode, the interface that forwards data is called the active interface, and the interface that does not forward data is called the inactive interface. Only when the active interface fails, the back-up interface can be changed from an inactive interface to an active interface. B. In the static LACP mode, the higher the interface LACP priority is, the higher the priority is, and the easier it is to be selected as an active port. C. When you need to provide a large link bandwidth between two directly connected devices and the peer device does not support LACP, you can choose to use the manual load balancing mode. D. If preemption is enabled, the high-priority backup interface becomes an active interface within a certain period after the active interface fails. If preemption is not enabled, the faulty interface cannot automatically become an active interface.

Correct Answer: B

QUESTION NO: 8
The differences between IGMP versions are: (Multiple Choice)

A. IGMPv1/v2 cannot elect the querier on its own, but IGMPv3 can. B. For members leaving, IGMPv2/v3 can leave actively, but IGMPv1 cannot. C. IGMPv1/v2/v3 cannot support the SSM model. D. IGMPv1 does not support specific group queries but IGMPv2 support.

Correct Answer: B,D

QUESTION NO: 9
Regarding the role of route filtering, the following description which is correct? (Multiple choice)

A. Routing loops caused by inevitable inappropriate routing feedback. B. Can be used for precise route import and route advertisement control. C. Avoid routing loops caused by unused routing feedback. D. Suboptimal routes caused by route introduction cannot be avoided.

Correct Answer: B,C,D

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