Huawei Certified Network Professional – Routing and Switching v2 (HCNP-RS) — Question 32

Which of the following statements is false?

Answer options

• A. An ABR maintains an LSDB for each area. There are many LSDBs on an ABR.
• B. The metric of an ASE LSA can be specified when an external route is imported. The default value is 1.
• C. The external routing information carries a Tag label for transmitting additional information of the route. It is commonly used in a routing policy. The default value of the Tag label is 0.
• D. The Link State ID in an ASBR-Summary-LSA is the Router ID of the ASBR.

Correct answer: C

Explanation

Statement C is incorrect because the default value of the Tag label is not 0; it can vary depending on the implementation. Statements A, B, and D are accurate descriptions of how ABRs and ASBRs function in OSPF routing, as they correctly describe the behavior and properties of LSDBs and LSAs.