Data Communication

How many layers are present in the Internet protocol stack (TCP/IP model)?

• a) 5

• b) 7

• c) 6

• d) 10

The number of layers in ISO OSI reference model is __________

• a) 5

• b) 7

• c) 6

• d) 10

Which of the following layers is an addition to OSI model when compared with TCP IP model?

• a) Application layer

• b) Presentation layer

• c) Session layer

• d) Session and Presentation layer

Application layer is implemented in ____________

• a) End system

• b) NIC

• c) Ethernet

• d) Packet transport

Transport layer is implemented in ______________

• a) End system

• b) NIC

• c) Ethernet

• d) Signal transmission

The functionalities of the presentation layer include ____________

• a) Data compression

• b) Data encryption

• c) Data description

• d) All of the mentioned

Delimiting and synchronization of data exchange is provided by __________

• a) Application layer

• b) Session layer

• c) Transport layer

• d) Link layer

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

• a) Application layer

• b) Transport layer

• c) Link layer

• d) Session layer

In TCP IP Model, when data is sent from device A to device B, the 5th layer to receive data at B is ___________

• a) Application layer

• b) Transport layer

• c) Link layer

• d) Session layer

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

• a) Added

• b) Removed

• c) Rearranged

• d) Randomized