Module 6 - Data Link Layer

Module 6 - Data Link Layer

Multiple Choice

Which of the following tasks is not done by data link layer?

• a) framing

• b) error control

• c) flow control

• d) channel coding

Multiple Choice

OSI stands for __________

• a) operating system interface

• b) open system interconnection

• c) optical service implementation

• d) open service Internet

Multiple Choice

What does MAC stand for?

• media access control

• multi access control

• media account control

• multi address control

Multiple Choice

Which of the following is a function of the MAC sublayer?

• It is responsible for Media Access Control.

• It handles communication between upper and lower layers.

• It performs the function of NIC driver software.

• It adds control information to network protocol layer data.

Multiple Choice

The data-link layer receives services from the _________ layer.

• physical

• application

• network

• transport

Multiple Choice

The data-link layer provides services to the _________ layer

• physical

• transport

• network

• application

Multiple Choice

Communication at the data-link layer is ___________

• end-to-end

• node-to-node

• host-to-host

• process-to-process

Multiple Choice

Which of the following is used by the Data Link layer to determine the media access control method to be used to put frames onto the media?

• Type of data

• Transport layer protocols

• Layer 3 IP protocol

• Logical Topology

Multiple Choice

What network topology is this?

• STAR
• BUS
• RING

Multiple Choice

What are the 3 main network topologies?

• BUS, RING & STAR
• BUS, STAR & LAN
• WAN, STAR & LAN

Multiple Choice

"Storage facilities are distributed across all computers" is a feature of which usage model?

• Peer-to-Peer
• Client-Server
• WAN

Multiple Choice

What is bandwidth?

• The amount of data that can be carried at any one time.
• The overall amount of data I use in a month.
• The speed of my data per second to a friend and back.

Multiple Choice

Which one is an advantage to networking computers.

• Data is easy to back up from a central server.

• Expensive to set up a network

• Complicated to maintain a network.

Multiple Choice

What type of network is this?

• Ring
• Mesh
• Star
• Bus

Multiple Choice

Which network topology is the hardest to add a new computer to?

• Ring
• Star
• Bus

Multiple Choice

What type of network is this?

• Ring

• Bus

• Star

• Mesh

Multiple Choice

Information in the _________includes sending and receiving network interface card (NIC) addresses.

• header

• header and trailer

• flag

• trailer

Multiple Choice

Error checking information is also found in the frame ________.

• header

• trailer and header

• trailer or header

• trailer

Multiple Choice

The physical path between nodes is referred to as the _____

• media

• node

• transmission line

• link

Multiple Choice

The first service provided by the data-link layer is ________

• encapsulating and/or decpsulating

• error detection and/or correction

• storing and/or queueing

• framing

Multiple Choice

If a computer can discover the MAC address for another computer, it can communicate directly with that computer.

• True

• False

Multiple Choice

Collision domains are eliminated by the use of full-duplex networking and hubs.

• True

• False

Multiple Choice

The number of layers in ISO OSI reference model is __________

• a) 4

• b) 5

• c) 6

• d) 7

Multiple Choice

Packets are packaged into frames at which layer of the OSI model?

• data link

• transport

• physical

• presentation

• application

Multiple Choice

Why doesn't modern ethernet require a media access control method?

• It uses one pair of wires for sending data.

• It uses all wires for communication.

• It uses half duplex.

• It uses full duplex.