Which of the following is a TCP/IP Data Link Layer protocol?

Correct option is D

Ethernet is a Data Link Layer protocol within the TCP/IP model, used for establishing communication between devices on a local area network (LAN). It defines standards for frame formats, addressing, and error detection.
Important Key Points:
1. The Data Link Layer is responsible for reliable data transfer across the physical link.
2. Ethernet is widely used in LANs and supports both wired and wireless communications.
3. It works alongside protocols like ARP (Address Resolution Protocol) for resolving hardware addresses.
Knowledge Booster:
· IP: Operates at the Network Layer in the TCP/IP model.
· TCP: Works at the Transport Layer for reliable communication.
· HTTP: Functions at the Application Layer for web communications.
· ARP: Maps IP addresses to MAC addresses but complements Ethernet rather than replacing it.