Implementing Cisco Collaboration Devices (CICD, legacy) — Question 114

A Cisco IP phone is connected to a Cisco switch and is trying to obtain its network configuration. What is the first protocol that is used?

Answer options

• A. RTP
• B. DHCP
• C. CDP
• D. SIP C

Correct answer:

Explanation

The correct answer is B. DHCP is the first protocol used by the IP phone to obtain an IP address and other network configuration details. RTP, CDP, and SIP serve different purposes; RTP is for media streaming, CDP is for network device discovery, and SIP is used for initiating and managing communication sessions.