OSI Deep Dive

Question 1

Describe the application layer

Answer 1

The layer in which end user software such as web browsers and email clients use protocols to send and receive data for users

Question 2

What are three protocols of the application layer

Answer 2

HTTP
Telnet
FTP

Question 3

Describe the presentation layer of the OSI model

Answer 3

Formats/presents data into a form for the application layer

Question 4

What are three protocols on the presentation layer

Answer 4

JPEG,ASCII, WAV

Question 5

Describe the session layer of the OSI model

Answer 5

Manages the sessions in which data is transferred

Question 6

What are three protocols of the session layer

Answer 6

Network file system NFS
Apples Session Protocol
SQL

Question 7

Describe the Transport layer of the OSI model

Answer 7

Provides transparent transfer of data between end users

Question 8

What are the two protocols on the transport layer

Answer 8

TCP and UDP

Question 9

Describe the network layer of the OSI model

Answer 9

uses network addresses to route packets to a destination node

Question 10

What are two protocols that work on the Network layer

Answer 10

IP

AppleTalk

Question 11

Describe the Data Link layer

Answer 11

Establishes and terminates a connection between two physically-connected nodes on a network

Question 12

What protocols are on the data link layer

Answer 12

802.2 (LLC), PPP and more

Question 13

Describe the physical layer of the OSI model

Answer 13

is responsible for the physical cable or wireless connection between network nodes. It defines the connector, the electrical cable or wireless technology connecting the devices

Question 14

What protocols are on the physical layer

Answer 14

RJ45
Cat6
etc