Data Link Layer

Which duplex communication method is used in WLANs?

• half-suplex

• full-duplex

• half-duplex

• simplex mode

Which of the following isn’t a WAN protocol?

• Frame Relay

• Asynchronous Transfer Mode

• X.25

• High-Definition Multimedia Interface

Which part of the frame field identifies the Layer 3 protocol in the data field?

• Control

• Type

• Addressing

• Data

To work properly, all Data Link protocols must include all 6 Frame Fields.

• True

• False

Which frame field would most likely contain the highest amount of data?

• Addressing field

• Frame Start and Stop flags

• Data field

• Control Field

Which analogy is best compared to a full duplex communication? Choose all that apply.

• Two walkie-talkies communicating

• A two-lane road

• A one-lane road

• A telephone call

What is the first sublayer of the data link layer?

• Physical sublayer

• Session sublayer

• Media Access Control sublayer

• Logical Link Control sublayer

Which is a function of the Logical Link Control (LLC) sublayer?

• To accept segments and package them into data units that are called packets

• To provide data link layer addressing

• To define the media access processes that are performed by the hardware

• To identify which network layer protocol is being used

The data link layer adds addresses to the frame to identify the sender and receiver.

• Logical

• Physical

• Port

• Network

One device to send or receive at a time on a shared medium

• Half-Duplex Communication - Used 

• Full-Duplex Communication - Ethernet

• Full-Duplex Communications - Allows 

• Half-Duplex Communication - Allows