QuestionQ11

Communications and Network Security

Which of the following are considered sub-layers of the data-link layer? (Each correct answer represents a complete solution. Choose all that apply.)

Choose two
  • A Media Access Control (MAC)
  • B Logical Link Control (LLC)
  • C Reserve Address Resolution Protocol (RARP)
  • D Serial Line Internet Protocol (SLIP)
Explanation

The IEEE 802 model splits the OSI Data-Link Layer into two sublayers: the Media Access Control (MAC) sublayer, which manages access to the physical transmission medium and hardware addressing, and the Logical Link Control (LLC) sublayer, which manages frame synchronization, flow control, and error checking, and provides an interface to the network layer. RARP is a Layer 3 address-resolution protocol, and SLIP is a full data-link layer protocol for serial connections, not a sublayer of the data-link layer.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!