Huawei Certified ICT Associate – Data Center Network (HCIA-DCN) — Question 172

Which of the following statements about link aggregation are true? (Choose all that apply.)

Answer options

• A. Devices at both ends of an Eth-Trunk must use the same link aggregation mode.
• B. Eth-Trunk interfaces cannot be nested.
• C. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth-Trunk interface.
• D. GE interfaces and FE interfaces cannot be added to the same Eth-Trunk interface.

Correct answer: A, C, D

Explanation

Statement A is correct because both ends of the Eth-Trunk must operate in the same mode for proper functionality. Statement C is also true as GE electrical and optical interfaces are not compatible within a single Eth-Trunk. Similarly, statement D is accurate since GE and FE interfaces cannot coexist in the same Eth-Trunk, while statement B is incorrect because Eth-Trunk interfaces can be nested.