Exam H12-821_V1.0 Topic 1 Question 178 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam
Question #: 178
Topic #: 1

On a broadcast network, IS-IS elects a DIS, and OSPF elects a DR. Which of the following statements are true about the differences between a DIS and a DR?

A. DIS election and DR election take place at different times. The DIS is elected after an adjacency is established. B. Adjacency establishment in a DIS scenario is different from that in a DR scenario. In IS-IS, adjacencies are also established between non-DIS routers. C. The DIS and DR are elected according to different rules. In DIS election, devices first compare priorities and then IP addresses. In DR election, devices first compare IP addresses and then priorities. D. The DIS and DR provide different functions. The DIS is mainly used to create and update pseudonodes.

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