Solution

The correct answer is A - II, B - IV, C - I, D - III

Key Points

• A. Channelization protocol
  • This refers to methods for channel allocation to users in a multiple-access network.
  • TDMA (Time Division Multiple Access) is a common channelization protocol.
  • Correct match: II. TDMA
• B. Bit-oriented protocol
  • This refers to protocols that use bits or sequences of bits for communication and control.
  • HDLC (High-Level Data Link Control) is a bit-oriented protocol.
  • Correct match: IV. HDLC
• C. Random-access protocol
  • This refers to methods where any device can transmit data without prior coordination, often leading to potential collisions.
  • ALOHA is a well-known random-access protocol.
  • Correct match: I. ALOHA
• D. Controlled-access protocol
  • This refers to methods where access to the communication channel is regulated to prevent collisions.
  • Reservation methods are a type of controlled-access protocol.
  • Correct match: III. Reservation

Therefore, the correct answer is: A - II, B - IV, C - I, D - III