Huawei Certified ICT Associate – SD-WAN (HCIA-SD-WAN) — Question 29

In a dual-link HSB scenario, after an AP sets up a CAPWAP links with the active and standby WACs, which of the following types of packets does the AP periodically send to the WACs to detect link status?

Answer options

• A. DTLS
• B. Join
• C. Echo
• D. Keepalive

Correct answer: C

Explanation

The correct answer, Echo, refers to the packets sent to verify the connectivity and status of the links with the WACs. DTLS and Join packets serve different purposes, such as securing communication and establishing connections, while Keepalive is not the specific type used in this scenario.