Topic: Computer Networks
While troubleshooting Internet access problem reported by a user, a computer technician finds that the default gateway setting is wrong. Which layer of OSI model is associated with the cause of the problem experienced by the user?
- A. Layer 2
- B. Layer 5
- C. Layer 3
- D. Layer 4
Answer: C. Layer 3
Explanation: The default gateway is an IP address used to route packets outside of the local subnet. IP addressing and routing are functions of the Network Layer, which is Layer 3 in the OSI model.