BCA Semester 5 – Computer Networking – Unit 3: The Data Link Layer (8Hrs)

1. Data Framing Definition: Data framing is a technique used in data link layer to distinguish frames in a continuous stream of bits. - Special flag sequences mark the start and end of a frame.

1. ALOHA Protocol Definition: ALOHA is a random-access protocol used in networks to control access to a shared communication channel. - Allows a station to transmit data whenever it has data to se