Module 6-Data Link Layer

Which layer of the OSI model is responsible for specifying the encapsulation method used for each type of media?

• Application

• Transport

• Network

• Data Link

What is the function of the Logical Link Control (LLC) Data Link sublayer?

• Identify the IP version type from the Network layer

• To define the media access control method onto the media

• Add the source and destination MAC address to the frame

• Add the application port number to the frame

Wired ethernet is defined by which protocol?

• IEEE 802.3

• IEEE 802.11

• IEEE 802.14

• IEEE 802.8

What type of network topology will display IP addressing?

• System topology

• Logical topology

• Physical topology

• Topographical topolgoy

Which LAN topology provides the greatest amount of fault tolerance?

• Extended star

• Ring

• Bus

• Mesh

Which duplex communication method is used in WLANs?

• Full-duplex

• Half-duplex

• Simplex

• Bi-directional

What identifier is used at the data link layer within a frame to uniquely identify an Ethernet device?

• IP address

• Port number

• MAC address

• Sequence number

Why is CSMA/CD media access control no longer necessary with modern ethernet?

• Modern layer 2 devices use full-duplex

• Modern layer two devices are much faster

• Modern layer two devices use CSMA/CA instead

• Modern layer two devices run in half-duplex

What access control method is used to manage contention-based access such as a wireless network?

• Priority ordering

• CSMA/CA

• Token Passing

• CSMA/CD