Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

IT22 - Networking 2 > OSI Data Link Layer > Flashcards

OSI Data Link Layer Flashcards

1
Q

What are the two common LAN sublayers?

A

Logical Link Control (LLC) and Media Access Control (MAC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the role of the data link layer in data transmission?

A

To prepare data for transmission on network media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does LLC (Logical Link Control) do?

A

Places information in the frame that identifies which network layer protocol is being used for the frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the MAC (Media Access Control) method?

A

The technique used for getting the frame on and off media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which device usually processes the frame at each hop along the path?

A

A router

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the data link layer responsible for?

A

The exchange of frames between nodes over the media of a physical network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the purpose of encapsulating packets into frames?

A

To facilitate media access

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What organizations define open standards and protocols that apply to the data link layer?

A

International Organization for Standardization (ISO), Institute of Electrical and Electronics Engineers (IEEE), American National Standards Institute (ANSI), International Telecommunication Union (ITU)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What organization is responsible for defining open standards and protocols related to the data link layer?

A

International Organization for Standardization (ISO)

Institute of Electrical and Electronics Engineers (IEEE)

American National Standards Institute (ANSI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the role of the data link layer in data transmission?

A

To prepare data for transmission on network media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the two common LAN sublayers?

A

Logical Link Control (LLC) and Media Access Control (MAC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does LLC do?

A

Places information in the frame that identifies which network layer protocol is being used for the frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the MAC method?

A

The technique used for getting the frame on and off media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which device usually processes the frame at each hop along the path?

A

A router

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the purpose of encapsulating packets into frames?

A

To facilitate media access

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which organizations define open standards and protocols that apply to the data link layer?

A

International Organization for Standardization (ISO), Institute of Electrical and Electronics Engineers (IEEE), American National Standards Institute (ANSI), International Telecommunication Union (ITU)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the three elements of data link layer frame?

A
  • Data
  • Header
  • Trailer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

It is an Ethernet that is inserted into the bus system of the computer and makes the connection between running software processes on the computer and the physical media.

A

Network Interface Card (NIC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is contained within the frame header?

A

Start of Frame field

20
Q

What is CSMA?

A

A media access method used in multiaccess topology

21
Q

What is CSMA/CD?

A

A method for resolving media contention in shared media and the device monitors the media for the presence of data signal

22
Q

What is the purpose of the trailer?

A

To check for errors

23
Q

What is the purpose of PPP authentication?

A

To authenticate the nodes on each end of the PPP link

24
Q

What are the three functions and subfunctions of an 802.11 frame?

A

control, data, and management

25
Q

What is the purpose of MAC addressing?

A

To specify the frame destination node on the local network

26
Q

What is the purpose of the FCS field in a PPP frame?

A

to provide improved error detection

27
Q

What is the binary sequence for the flag field in a PPP frame?

A

01111110

28
Q

What is the difference between scheduled access and nondeterministic access in shared media?

A

Scheduled access takes turns for devices to access the medium, while nondeterministic access first detects whether the media is carrying a signal before allowing any device to try to access it

29
Q

What is the purpose of addressing in the data link layer?

A

To specify the frame destination node on the local network

30
Q

What is the difference between CSMA/CD and CSMA/CA?

A

CSMA/CD monitors the media for the presence of a data signal, while CSMA/CA examines the media for the presence of a data signal

30
Q

What is the purpose of the Protocol Version field in an 802.11 frame?

A

to indicate the version of 802.11 frame in use

30
Q

What is the purpose of the Frame Check Sequence (FCS) field?

A

To check for errors

31
Q

What is the purpose of the Authentication option in PPP?

A

To require the nodes on each end of the PPP link to authenticate in order to establish communications over a point-to-point link

32
Q

What is the difference between logical and physical topology in a network?

A

Physical topology refers to the physical arrangement of nodes and connections, while logical topology refers to the way a network transfers frames from one node to the next

33
Q

What is the purpose of the Stop field in the frame trailer?

A

To indicate the end of the frame

34
Q

What is the difference between physical and logical addresses in the data link layer?

A

Physical addresses are contained within the frame header, while logical addresses are used only for local delivery.

35
Q

What is the standard PPP broadcast address?

A

a single byte that contains the standard PPP broadcast address

36
Q

What is a ring topology?

A

A topology in which each node in turn receives a frame

36
Q

What is the purpose of the To DS field in an 802.11 frame?

A

To identify frames destined for the distribution system (devices in the wireless structure)

36
Q

What is the purpose of the Sequence Number field in an 802.11 frame?

A

To indicate the sequence number assigned to the frame; retransmitted frames are identified by duplicate sequence numbers

37
Q

What options can be negotiated in a PPP session?

A

Compression

Authentication

Multilink

38
Q

What is the purpose of the Preamble field in Ethernet frames?

A

To indicate the beginning of the frame

39
Q

What is the difference between controlled access and contention-based access in shared media?

A

Controlled access takes turns for devices to access the medium, while contention-based access first detects whether the media is carrying a signal before allowing any device to try to access it

40
Q

What is a point-to-point topology?

A

A topology that connects two nodes directly

41
Q

What is the purpose of the Power Management field in an 802.11 frame?

A

to indicate that a node will be in power-save mode

42
Q

What is the purpose of the frame header?

A

To contain the control information specified by the data link layer protocol

IT22 - Networking 2 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions