JNCIA-DC: Juniper Networks Certified Associate – Data Center (2021) — Question 4

Which protocol is used by Mist access points to discover third-party switches?

Answer options

• A. LLDP
• B. SNMP
• C. CDP
• D. ICMP

Correct answer: A

Explanation

The correct answer is LLDP, which stands for Link Layer Discovery Protocol, and is specifically designed for network devices to advertise their identity and capabilities. SNMP (Simple Network Management Protocol) is used for network management, CDP (Cisco Discovery Protocol) is proprietary to Cisco devices, and ICMP (Internet Control Message Protocol) is primarily used for error messages and operational queries, making them unsuitable for this purpose.