Huawei Certified ICT Associate – Storage (HCIA-Storage) — Question 23

Dual-switch networking is widely applied in Fibre Channel SANs. Which of the following are its characteristics? (Choose all that apply.)

Answer options

• A. Two Fibre Channel switches are deployed in a SAN for connecting to the two controllers of a storage device.
• B. Per host two fibre channel ports should be available. The two Fibre Channel ports connect to two Fibre Channel switches.
• C. As multiple paths exist, the dual switch networking mode supports link redundancy but does not support load balancing.
• D. The ports on the two Fibre Channel switches connecting to the hosts and storage device must reside in the same zone.

Correct answer: A, B, D

Explanation

Options A, B, and D correctly describe the characteristics of dual-switch networking in Fibre Channel SANs, where redundancy and proper zoning are essential. Option C is incorrect because dual switch networking can indeed support load balancing across multiple paths along with redundancy.