Huawei H12-821_V1.0-ENU Actual Free Exam Questions & Community Discussion
The origin of SDN is the separation of transfer and control. The separation of transfer and control is a method to realize SDN but not the essence.
Correct Answer: A
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In which part of the multicast network architecture is the IGMP protocol used?
Correct Answer: B
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In a broadcast network, what mechanism does the IS-IS protocol use to ensure the reliability of neighbor relationship establishment?
Correct Answer: A
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When the BFD detection intervals at both ends are 30ms and 40ms respectively, which of the following option descriptions is correct?
Correct Answer: D
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As shown in the figure, R1 and R2 constitute a VRRP backup group with a VRID of 1. Which of the following descriptions about the VRRP master and backup election process is wrong?
Correct Answer: C
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What protocol modules can BFD detection be linked with? (Multiple choice)
Correct Answer: A,B,C,D
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As shown in the figure, router HqE runs two processes, OSPF1 and OSPF 2. The administrator received a request to introduce the two network segments 10.0.1.0/24 and 10.0.4.0/24 in OSPF 2 to OSPF. 1, then to analyze the configuration in the figure, you need to enter the filter-policy ip-prefix Hw () command in the OSPF 1 view.
Correct Answer:
import-route ospf 2
When routers running the OSPF protocol exchange DD messages, which of the following parameters will be used to elect the master-slave relationship?
Correct Answer: D
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The routing selection tool route-policy can filter and set BGP attributes based on predefined conditions, so it is often used to define policies for BGP Peer and is often used during route generation.
By default, all unused Routes from the North Configuration are all rejected through route-policy.
By default, all unused Routes from the North Configuration are all rejected through route-policy.
Correct Answer: A
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Which of the following messages does BGP support? (Multiple choice)
Correct Answer: A,B,D
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The RSTP protocol defines different port states, including Discarding and Learning. Which of the description of these two port states is correct? (Multiple choice)
Correct Answer: A,B
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In OSPF, the DR and BDR elected in a broadcast network listen to both the 224.0.0.5 address and the 224.0.0.6 address.
Correct Answer: A
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