Huawei Certified ICT Professional – Data Center Network (HCIP-DCN) — Question 4

Which of the following statements regarding OSPF route summarization commands are true? (Choose all that apply.)

Answer options

• A. The asbr-summary command is executed in the OSPF view.
• B. The abr-summary command is executed in the OSPF area view.
• C. advertise is the default parameter of the abr-summary command. That is, if not-advertise is not specified in the abr-summary command, the advertise parameter takes effect by default,
• D. not-advertise is the default parameter of the abr-summary command. That is, if advertise is not specified in the abr-summary command, the not-advertise parameter takes effect by default.

Correct answer: B, C

Explanation

Option B is correct because the abr-summary command must be used in the OSPF area view to summarize routes within that area. Option C is also correct as it specifies that 'advertise' is the default behavior unless explicitly stated otherwise. Options A and D are incorrect because the asbr-summary command is not executed in the OSPF view and 'not-advertise' is not the default parameter for the abr-summary command.