Huawei Certified ICT Associate – Data Center Network (HCIA-DCN) — Question 182

Compared with STP, which of the following port roles does RSTP add?

Answer options

• A. Root port
• B. Designated port
• C. Alternate port
• D. Backup port

Correct answer: C

Explanation

RSTP introduces the Alternate port role, which provides an additional path to the root bridge in case the primary connection fails. The Root port and Designated port roles are already present in STP and remain unchanged in RSTP. The Backup port is not a role defined in RSTP.