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Networking > Module 6 Practice > Flashcards

Module 6 Practice Flashcards

1
Q

What is another name for the OSI data link layer?

A

Layer 2

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2
Q

The IEEE 802 LAN/MAN data link layer consists of which two sublayers? (Choose two.)

A
  • Logical Link Control
  • Media Access Control
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3
Q

What is the responsibility of the MAC sublayer?

A

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

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4
Q

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

A

WAN

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5
Q

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

A
  • Media sharing
  • Topology
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5
Q

What Layer 2 function does a router perform? (Choose three.

A
  • Accepts a frame from a medium
  • De-encapsulates the frame
  • Re-encapsulates the packet into a new frame
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5
Q

Which topology displays networking device layer IP addresses?

A

logical topology

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6
Q

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

A

carrier sense multiple access/collision detection

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6
Q

Which duplex communication method is used in WLANs?

A

half-duplex

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6
Q

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

A

To determine whether the frame experienced transmission errors

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6
Q

Which LAN topology is a hybrid topology?

A

extended star

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6
Q

Which organization defines standards for the network access layer (i.e., the OSI physical and data link layers)?

A

IEEE

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7
Q

What type of physical topology can be created by connecting all Ethernet cables to a central device?

A

star

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7
Q

What attribute of a NIC would place it at the data link layer of the OSI model?

A

MAC address

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7
Q

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

A

to identify which network layer protocol is being used

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7
Q

What does the data link layer add to a Layer 3 packet to create a frame? (Choose two.)

A
  • header
  • trailer
7
Q

Which of the following are data link layer protocols? (Choose three)

A
  • 802.11
  • Ethernet
  • PPP
7
Q

Which lists the Layer 2 and Layer 3 address fields in the correct order?

A

destination NIC address, source NIC address, source IP address, destination IP address

8
Q

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?

A

the use of full-duplex capable Layer 2 switches

8
Q

What are two services performed by the data link layer of the OSI model? (Choose two.)

A
  • It accepts Layer 3 packets and encapsulates them into frames.
  • It provides media access control and performs error detection.
8
Q

What does a router do after de-encapsulating a received frame?

A

determines the best path

8
Q

Which statement describes the half-duplex mode of data transmission?

A

Data that is transmitted over the network flows in one direction at a time.

8
Q

What are the two sublayers of the OSI model data link layer? (Choose two.)

A

LLC
MAC

8
Q

A technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?

A

mesh

9
Q

Which data link layer media access control method does Ethernet use?

A

CSMA/CD

9
Q

Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?

A

data link

9
Q

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

A

MAC address

9
Q

Which two engineering organizations define open standards and protocols that apply to the data link layer? (Choose two.)

A
  • International Organization for Standardization (ISO)
  • International Telecommunication Union (ITU)
10
Q

What method is used to manage contention-based access on a wireless network?

A

CSMA/CA

11
Q

What is true concerning physical and logical topologies?

A

Logical topologies refer to how a network transfers data between devices.

Networking (16 decks)

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