Layers of Computer Networks

Question 1

7 layers of OSI
(from bottom to top)

Answer 1

1. Physical Layer
2. Data Link Layer
3. Network Layer
4. Transport Layer
5. Session Layer
6. Presentation Layer
7. Application Layer

Question 2

is aimed at consolidating the hardware requirements of a network to enable the successful transmission data.

Answer 2

Physical Layer

Question 3

is the protocol layer that transfers data nodes on a network segment across the physical layer.

Answer 3

Data Link Layer

Question 4

is resposible for packet forwarding including routing through intermediate routers.

Answer 4

Network Layer

Question 5

is responsible for delivering data to the appropriate process on the host computers.

Answer 5

Transport Layer

Question 6

provides the mechanism for opening,closing and managing a session between end-user application processes.

Answer 6

Session Layer

Question 7

serves as the data translator for the network. Sometimes called the Syntax Layer.

Answer 7

Presentation Layer

Question 8

specifies the shared communications protocols and interface methods used by host in a communication network.

Answer 8

Application Layer