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Flashcards in OSI Model Deck (23)
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1

List the 7 layers of the OSI Model in ORDER from HIGHEST to LOWEST

Application

Presentation

Session

Transport

Network

Data link

Physical

2

The lowest layer of the OSI model.  It is concerned with the transmission and reception of the unstructured raw bit stream over a physical medium. It describes the electrical/optical, mechanical, and functional interfaces to the physical medium, and carries the signals for all of the higher layers.

Physical

3

Controls the operation of the subnet, deciding which physical path the data should take based on network conditions, priority of service, and other factors.

Network Layer

4

Serves as the window for users and application processes to access network services. This layer contains a variety of commonly needed functions.

Application Layer

5

Provides error-free transfer of data frames from one node to another over the physical layer, allowing layers above it to assume virtually error-free transmission over the link.

Data Link Layer

6

Allows session establishment between processes running on different stations.

Session Layer

7

Formats the data to be presented to the application layer. It can be viewed as the translator for the network. This layer may translate data from a format used by the application layer into a common format at the sending station, then translate the common format to a format known to the application layer at the receiving station.

Presentation Layer

8

Ensures that messages are delivered error-free, in sequence, and with no losses or duplications. It relieves the higher layer protocols from any concern with the transfer of data between them and their peers.

Transport Layer

9

Which of the following go with the Physical layer of the OSI?

a. DSL, PPTP, Cable

b. Network Adapter, Frames Relay, Cable

c. TCP, UDP, ASCII

d. DSL, Cable, Network Adapter

d. DSL, Cable, Network Adapter 

10

Which of the following are part of the Transport layer of the OSI?

a. Segments, TCP, UDP 

b. TCP, UDP, FTP

c. MAC, MPEG, Sockets

d. DSL, TCP, UDP

a. Segments, TCP, UDP 

11

Which of the following are part of the Session layer of the OSI?

Select one:

a. ASCII, NetBIOS, Segments

b. MAC, PPTP, ASCII

c. Sockets, PPTP, NetBIOS 

d. Frames, MPEG, Sockets

c. Sockets, PPTP, NetBIOS 

12

Which of the following are provided by the Application layer of the OSI?

Select one:

a. Packets, Router, FTP

b. E-mail, FTP, Telnet 

c. IP, FTP, TCP

d. TCP, UDP, IP

b. E-mail, FTP, Telnet 

13

Which of the following are provided by the Data Link layer of the OSI?

Select one:

a. Frames, Frame Relay, MAC 

b. Frames, Frame Relay, ASCII

c. Frame Relay, IP, Router

d. MAC, MPEG, Frame Relay

a. Frames, Frame Relay, MAC 

14

Which of the following are provided by the Presentation layer of the OSI?

Select one:

a. ASCII, FTP, MPEG

b. MPEG, Encryption, ASCII 

c. MAC, FTP, TCP

d. ASCII, FTP, Packets

b. MPEG, Encryption, ASCII 

15

Which of the following are provided by the Network layer of the OSI?

Select one:

a. Packets, Encryption, ASCII

b. Encryption, IP, Router

c. IP, Packets, Router 

d. ASCII, IP, Packets

c. IP, Packets, Router 

16

Which layer contains resource sharing and network management as well as electronic messaging?

Application

17

Which layer would handle frame fragmentation and address mapping?

network

18

Which layer provides data conversion, compression and encryption?

presentation

19

Which layer provides data encoding and determines method that bits will be transmitted?

physical

20

Which layer provides message traffic control?

transport

21

Which layer provides frame sequencing and media access management?

data link

22

Which layers allows two application processes on different machines to establish, use and terminate a connection?

session

23

What does OSI stand for?

Open Systems Interconnect