Huawei H12-821_V1.0 : HCIP-Datacom-Core Technology V1.0

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Huawei H12-821_V1.0 Exam Syllabus Topics:

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

Question 1

In BGP, the MED attribute is transmitted only between two neighboring ASs. The AS that receives the MED attribute does not advertise it to a third AS. By default, a router compares only the MED values of BGP routes from the same neighboring AS. That is, if two routes to the same destination are from different neighboring ASs, the router does not compare the MED values of the two routes.

A. FALSE
B. TRUE

Question 2

The BFD Echo function checks the connectivity of the forwarding link by looping back packets. Which of the following statements are true about this function?

A. If URPF is enabled on the peer end, BFD packets may be incorrectly discarded on the peer end.
B. In the BFD Echo function, the device uses the IP address of the outbound interface as the source IP address by default.
C. When configuring a BFD session supporting the BFD echo function, you need to configure both the local and remote discriminators.
D. The BFD Echo function applies only to single-hop BFD sessions.

Question 3

On a BGP network , a route-policy can be used to modify route attributes. Which of the following statements is false about route-policies ?

A. In the address family view, the peer command can be run to reference a route-policy to modify the local preference of the routes to be advertised.
B. When OSPF routes are imported using the import command, a route-policy can be used to change their default MED value .
C. When routes are imported using the network command, a route-policy cannot be used to modify the attributes of the imported routes.
D. When direct routes are imported using the import command, a route-policy can be used to filter out the routes that you do not want to advertise.

Question 4

As shown in the figure, VRRP is associated with a BFD session. When a backup device detects a fault through BFD, the backup device immediately assumes the master role after the Master_Down_Timer timer expires.

A. FALSE
B. TRUE

Question 5

In IP multicast transmission , packets are transmitted from a source to a group of receivers . Which of the following statements are true about IP multicast technologies?

A. Compared with unicast, IP multicast improves information transmission security.
B. Compared with broadcast, IP multicast prevents information flooding.
C. Compared with unicast, IP multicast increases the load of information sources.
D. Compared with broadcast, IP multicast effectively conserves network bandwidth.

Solutions: