Computer Networks-UNIT I

What kind of transmission medium is most appropriate to carry data in a computer network that is exposed to electrical interferences?

• 1. Unshielded twisted pair

• 1. Optical fiber

• 1. Coaxial cable

• 1. Microwave

The term HTTP stands for?

• 1. Hyper terminal tracing program

• 1. Hypertext tracing protocol

• 1. Hypertext transfer protocol

• 1. Hypertext transmit protocol

OSI stands for

• a) Open system interconnection
  
  

• b) Operating system interface

• c) Optical service implementation

• None of the mentioned

The_________ layer lies between the session layer and the application layer.

• network layer

• transport layer

• data link layer

• presentation layer

The layer is responsible for process delivery

a. network layer
b. transport layer
c. session layer
d. data link layer

• network layer

• transport layer

• session layer

• data link layer

Who developed standards for the OSI reference model?

• ANSI - American National Standards Institute

• ISO - International Standards Organization

• IEEE

  Institute of Electrical and Electronics Engineers

• ACM - Association for Computing Machinery

In an OSI model, the lowest layer is the ___ layer.

• Application Layer

• Physical Layer

• Presentation Layer

• Data Link Layer

The_________ layer uses data compression to reduce the number of bits to be transmitted.

a. presentation
b. network
c. data link
d. applicati

• presentation

• network

• data link

• application

How many layers does OSI Reference Model has?

A. 6
B. 7
C. 8
D. 9

• 6

• 7

• 8

• 9

Network layer protocol exits in _________
a) Host
b) Switches
c) Pcketsa
d) Bridges

• Host

• Host

• Pacets

• Bridges