OSI Model

The OSI model has ______ layers.

• 4

• 5

• 6

• 7

TCP/IP model does not have ______ layer but OSI model does.

• a. Session

• b. Application

• c. Data link

• a+b

OSI stands for

• Optical Service Implementation

• Operating System Interface

• Open System Interconnection

• None of the above

Which layer links network support layers and user support layers?

• Session layer

• Data link layer

• Transport layer

• Application layer

Which layer provides the services to the user?

• Physical layer

• Data link layer

• Transport layer

• Application layer

In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are

• Added

• Removed

• Rearranged

• Modified

Application layer is implemented in

• End system

• NIC

• Ethernet

• None of the above

In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is

• Application layer

• Transport layer

• Network layer

• Session layer

In Internet protocol stack (TCP/IP model), when data is sent from device A to device B, the 5th layer to receive data at B is

• Application layer

• Transport layer

• Network layer

• Session layer

In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______

• Added

• Removed

• Rearranged

• Modified