ITN - Chapter 2

converts bits into an effect that can be sent e.g. light / radio signal

• transport layer

• applications layer

• physical layer

• data link layer

opens a connection between 2 WANs

• session layer

• applications layer

• physical layer

• data link layer

ensures information is presented in a human-friendly way

• session layer

• applications layer

• physical layer

• data link layer

makes sure data is in correct format e.g. mp3

• session layer

• applications layer

• presentation layer

• data link layer

divides information into packets

• data link layer

• transport layer

• presentation layer

• applications layer

is the "traffic policeman" of a network

• network layer

• transport layer

• presentation layer

• applications layer

converts packets into 1's and 0's

• network layer

• transport layer

• presentation layer

• data link layer

How many layers make up the Open Systems Interconnection Model (OSI)

• 9

• 6

• 8

• 7

who directs packets around a network

• router

• switch

• hub

• repeater

HTTP , FTP are protocol of which OSI Model layer

• Physical layer

• Network layer

• Transport layer

• Applicational layer