CompTIA Network+ (N10-007) — Question 104

A device operating at Layer 3 of the OSI model uses which of the following protocols to determine the path to a different network?

Answer options

• A. STP
• B. RTP
• C. RIP
• D. NTP
• E. SIP

Correct answer: C

Explanation

The correct answer is C, RIP (Routing Information Protocol), which is specifically designed for determining routing paths between networks at Layer 3. The other options, such as STP (Spanning Tree Protocol) and NTP (Network Time Protocol), serve different functions related to network topology and time synchronization, respectively, and do not facilitate routing decisions.