OSI Model

Question 1

OSI Model Layer 1 - provide name, use, and example

Answer 1

Physical Layer - transmits raw bit stream over the physical medium. ex Hubs, Cables, Repeater

Question 2

OSI Model Layer 2 - provide name, use, and example

Answer 2

Datalink Layer - defines the format of the data on the network. ex. Bridges, Modems, NICs, Access Points, Layer 2 switches

Question 3

OSI Model Layer 3 - provide name, use, and example

Answer 3

Network Layer - decides which physical path the data will take. ex. Routers, Layer 3 switches

Question 4

OSI Model Layer 4 - provide name, use, and example

Answer 4

Transport Layer - transmits data using transmission protocols including TCP and UDP. ex. Gateways, Firewalls

Question 5

OSI Model Layer 5 - provide name, use, and example

Answer 5

Session Layer - maintain connections , starts/stops/restarts communications between devices and apps. ex. NFS (Network File System)

Question 6

OSI Model Layer 6 - provide name, use, and example

Answer 6

Presentation Layer - ensures that data is in a usable format and where data encoding and encryption occurs. ex. JPEG, ASCII, WAV, AVI

Question 7

OSI Model Layer 7 - provide name, use, and example

Answer 7

Application Layer - human-computer interaction layer, where applications can access the network services. ex Web browser, Outlook, Word

Question 8

Physical Layer - provide layer number

Answer 8

OSI Model Layer 1

Question 9

Datalink Layer - provide layer number

Answer 9

OSI Model Layer 2

Question 10

Network Layer - provide layer number

Answer 10

OSI Model Layer 3

Question 11

Transport Layer - provide layer number

Answer 11

OSI Model Layer 4

Question 12

Session Layer - provide layer number

Answer 12

OSI Model Layer 5

Question 13

Presentation Layer - provide layer number

Answer 13

OSI Model Layer 6

Question 14

Application Layer - provide layer number

Answer 14

OSI Model Layer 7

Question 15

What is a Mnemonic to remember the OSI Model?

Answer 15

Please Do Not Throw Sausage Pizza Away