Huawei Certified ICT Expert – Data Center Network (HCIE-DCN) — Question 29

Which of the following statements about IS-IS (IPv6) is correct? (Choose three.)

Answer options

• A. To support the processing and calculation of IPv6 routing, IS-IS added NLPID to 129 TLV
• B. IS-IS working at the data link layer only needs to add a new TLV to support Pv6
• C. To support the processing and calculation of IPv6 routes, IS-IS has added TLV232236
• D. By default, IS-IS enables the multi-topology feature

Correct answer: A, B, C

Explanation

Options A, B, and C are correct because they describe the necessary adjustments IS-IS made to support IPv6 routing. Option D is incorrect as IS-IS does not enable multi-topology by default; this feature must be explicitly configured.