OSI Layers

Question 1

What is Layer 1?

Answer 1

Physical

Question 2

What is Layer 2?

Answer 2

data Link

Question 3

What is Layer 3?

Answer 3

Network

Question 4

What is Layer 4?

Answer 4

Transport

Question 5

What is Layer 5?

Answer 5

Session

Question 6

What is Layer 6?

Answer 6

Presentation

Question 7

What is Layer 7?

Answer 7

Application

Question 8

what is included in the physical layer

Answer 8

Wires, mediums, topology, flow control, etc

Question 9

What is included in Layer 2?

Answer 9

MAC sublayer, Logical Link Control sublayer, the actual communication protocol such as PPP or RADIUS

Question 10

What does the network layer, layer 3, consist of?

Answer 10

Functional and procedural means of transferring variable length data sequences (datagrams). Also can include routing

Question 11

Talk about the Transport Layer, #4

Answer 11

layer four describes procedural methods for transferring data sequences form a source to a destination host via one or more networks while maintaining QoS.

Question 12

What is session layer?

Answer 12

controls the dialogues between computers such as duplexing (half, full, multi-mode, simplex). Also establishes checkpointing, adjournment, termination, and restart procedures. Uses TCP for graceful closure

Question 13

Presentation Layer has control and function of what?

Answer 13

different applications systems and semantics to create the presentation of information

Question 14

What is included in the application layer?

Answer 14

this layer in lcudes the user and the application software. includes allocating resources, and syncing communication. Example pieces include: browsers, FTP programs, mail programs, etc.