NETW311 Data Link Layer and IEEE 802 Standards Quiz

Data Link Layer Responsibilities

• The Data Link Layer is responsible for providing reliable data transfer between two devices on the same network.
• The Data Link Layer is responsible for framing, error detection and correction, and flow control.

IEEE 802 LAN/MAN Data Link Layer

• The IEEE 802 LAN/MAN Data Link Layer is divided into two sublayers: Logical Link Control (LLC) and Media Access Control (MAC).
• The MAC sublayer is responsible for data encapsulation and media access control.

Logical Link Control (LLC) Sublayer

• The LLC sublayer provides services to the upper layers, including error detection and correction, flow control, and framing.
• The purpose of the LLC sublayer is to manage the communication between devices on the same network.

Media Access Control (MAC) Sublayer

• The MAC sublayer is responsible for handling the access to the network medium, resolving collisions, and allocating bandwidth.
• The MAC sublayer handles the physical addressing of devices on the network.

Network Arrangement

• The arrangement and layout of a network is referred to as the network topology.

Data Link Layer and Upper Layers

• The LLC sublayer of the Data Link Layer communicates between the networking software at the upper layers and the device hardware at the lower layers.
• The Data Link Layer allows upper layer protocols to access the network using a standardized interface.