Which of the following protocols is commonly used for data encapsulation in WANs?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. High-Level Data Link Control
HDLC (High-Level Data Link Control): A protocol used for data encapsulation in Wide Area Networks (WANs). It is a bit-oriented protocol that provides framing, flow control, and error detection. It is commonly used in point-to-point links in WAN environments.
TCP/IP: A suite of communication protocols primarily used in LANs, WANs, and the internet but not specifically for data encapsulation at the data link layer in WANs.
Wi-Fi: A wireless communication standard primarily used in local area networks (LANs), not WANs.
Ethernet: A LAN protocol used for wired networks, not typically used for WAN data encapsulation.