What is the name of the layer's in osi modal?

Answer 1

The OSI layers are :

1) Layer 1 - physical

physical layer - it content electrical and physical specification for devices

this layer carries optical or electrical signal

from end to end network devices

2) Layer 2 - data link

data link layer - it mound over physical layer to control signals transmission

end to end without any loss

this layer divided into two parts

MAC - media access control

LLC - logical link control

MAC - it use to access network with out any collusion

LLC - it use to transmit frames without any loss

it major work is convert packet into frames

it find destination by help of MAC address

3) Layer 3 - network

network link layer - it header layer of network part because it will route

packets by help of destination ip address (even though

destination is present in other network ) and next node

MAC address

two major task this layer will follow up

1. collect informations of all available routes

2. after that to find best routes of them

this above two things can be achieve by network layer by the

of following protocols

EIGRP,RIP, OSPF etc.,

4) Layer 4 - transport

5) Layer 5 - session

6) Layer 6 - presentation

7) Layer 7 - application