Module 6 Check Understanding

Question 1

The IEEE 802 LAN/MAN data link layer consists of which two sub layers?

Answer 1

Logical Link Control (LLC)

Media Access Control (MAC)

Question 2

What is the responsibility of the MAC sublayer?

Answer 2

Provides the method to get the frame on and off the media.

Question 3

What Layer 2 function does a router perform?

Answer 3

Accepts a frame from a medium.
De-encapsulates the frame.
Re-encapsulates the packet into a new frame.

Question 4

The media access control method used depends on which two criteria?

Answer 4

Media Sharing.

Topology.

Question 5

Which organization defines standards for the network access layer.

Answer 5

IEEE

Question 6

Which organization defines standards for the network access layer.

Answer 6

IEEE

Question 7

Which topology displays networking device layer IP addresses?

Answer 7

Logical Topology

Question 8

What kind of network would use point to point,, hub and spoke, or mesh topology?

Answer 8

WAN

Question 9

Which LAN topology is a hybrid topology?

Answer 9

Extended Star

Question 10

Which duplex communication method is used in WLANs?

Answer 10

half-duplex

Question 11

Which media access control method is used in legacy Ethernet LANs?

Answer 11

Carrier sense multiple access/collision detection.

Question 12

What does the data link layer add to a Layer 3 packet to create a frame?

Answer 12

Header.

Trailer.

Question 13

802.11, Ethernet, PPP are examples of protocols for what?

Answer 13

Data Link Protocols.

Question 14

What is the function of the last field in a data link layer frame?

Answer 14

To determine whether the frame experienced transmission errors.