Brainscape's Knowledge GenomeTM

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


See full index

Network + > OSI Model > Flashcards

OSI Model Flashcards

1
Q

OSI

A

Open Systems Interconnection, 7 layers, 7 to 1 top down, visual model which characterizes and standardizes the communication functions. Each layer serves the layer above it

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

Layer 7

A

Application Layer. Highest Layer, where the user interfaces with the computer and that’s when our applications / programs run.

File transfers, email, remote terminal access, DNR, etc.

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

Layer 6

A

Presentation Layer, provides translation to/from the application layer. How images or data are presented. Performs data encryption, decryption, compression, decompression.

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

Layer 6 Protocols

A

Associated with file formats/protocols such as .jpg, .mpeg, .png, TLS, SSL, Voice Codecs

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

Layer 7 Protocols

A

FTP (File transfer protocol) and Telnet (depreciated), HTTP, SSH

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

Layer 5

A

Session Layer. Coordinates, establishes, manages, and tears down sessions between applications on either side of the connection.

Responsiblefor coordinating these connections and tears down these connections

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

Layer 5 Protocols

A

NetBios, PAP, SIP

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

Layer 4

A

Transport Layer. Segments and reassembles data from upper layers and unites them into the same single data stream. Provides flow control for data, loss prevention, as well as reliable and unreliable transport methods

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

Layer 4 Protocols

A

TCP (Transmission Control Protocol), UDP (User Datagram Protocol) RTP (Real-time Transport Protocol) ESP (Encapsulating Security Payload)

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

Layer 4 Protocol Data Unit

A

TCP: Segment if connection transmission

UDP:Datagram if connection-less tramsission

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

Layer 7 Protocol Data unit

A

Data

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

Layer 6 Protocol Data unit

A

Data

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

Layer 5 Protocol Data Unit

A

Data

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

Layer 4 Devices

A

Firewall

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

Layer 7 Devices

A

Host Computer/Server

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

Layer 6 Devices

A

Host Computer/Server

17
Q

Layer 5 Devicecs

A

Host Computer/Server

18
Q

Layer 3

A

Network Layer. Routers/Internet Protocols live here. Provides logical network addressing and path determination/routing services. Responsible for packet delivery, fragmentation, and sequencing.

19
Q

Layer 3 Protocols

A

IP (Internet Protocol), ICMP (Internet Control Message Protocol), EIGRP (Enhanced Interior Gateway Routing Protocol), OSPF (Open Shortest Path First)

20
Q

Layer 3 Devices

A

Routers, Multi-layer switch

21
Q

Layer 3 Protocol Data Unit

A

TCP: Packet

UDP: Datagram

22
Q

Networking Layer

A

The bottom four layers of the OSI model make up the network layers, (from four to one) Transport layer, Network layer, data link layer, physical layer

23
Q

Layer 2

A

Data Link Layer, subdivided into two sub layers LLC (Logical Link Controller) and MAC (Media Access Control).

24
Q

MAC

A

Layer 2 sub layer, Media access control, delivers frames using unique hardware addressing

25
Q

LLC

A

Layer 2 sub layer, Logical Link Controller, provides error detection and control

26
Q

Layer 2 Protocol Data Unit

A

Frame

27
Q

Layer 2 Protocols

A

LLC, MAC, 802.3 (Ethernet standards) 802.11 (Wifi standards)

28
Q

Layer 2 Devices

A

Switches

29
Q

Layer 1

A

Physical Layer. The Wire or Physical Media. Turns raw bits into electrical signaling and defines physical network media.

30
Q

Layer 1 Protocol Data Unit

A

Bits (0s and 1s)

31
Q

Layer 1 Protocols

A

Voltage, Pinouts, Cable Specs. Half Duplex, Full Duplex

32
Q

Layer 1 Devices

A

Hub/Repeater, cables and media

33
Q

Full Duplex

A

Data can be transmitted in both directions on a signal carrier at the same time. One workstation can be sending data on the line while another workstation is receiving data

34
Q

Half Duplex

A

Between two devices, only one device is capable of transmitting and receiving data on a network or bus at one time. Bi-directional but data can only go in one direction at a time

35
Q

All people seem to need data processing

A

Going down the layers of the OSI Model, A, P, S, T, N, D, P

36
Q

Please do not throw sausage pizza away

A

Going up the layers of the OSI Model, P, D, N, T, S, P, A

Network + (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions