My today's Fresh baked Paper of CS601 on 8 Dec 2011

MIDTERM  EXAMINATION

FALL 2011

CS601- Data Communication (Session - 1)

    

Question No: 1    ( Marks: 1 )    - Please choose one

 

To allow access to network resourcesis the function of ___________

►application layer

►physical layer

►network layer

   

Question No: 2    ( Marks: 1 )    - Please choose one

  

The

    Asynchronous transmission is ___________

       ► slow

       ► costly

       ► non-effective

       ► fast

Question No: 3    ( Marks: 1 )    - Please choose one

 In _____________ transmission, a start bit and a stop bit frame a character byte.

       ► Asynchronous serial

       ► Synchronous serial

       ► Parallel

       ► Asynchronous & Synchronous serial

   

Question No: 4    ( Marks: 1 )    - Please choose one

In 8QAM each signal shift or one baud represents ______.

►3 bits

►4 bits

►2 bits

►5 bits

   

Question No: 5    ( Marks: 1 )    - Please choose one

 

Question No: 6    ( Marks: 1 )    - Please choose one

 

 In ____________ transmission the timing of the signal is unimportant.

►Asynchronous

►Synchronous

►Polar

►Bi-polar

   

Question No: 7    ( Marks: 1 )    - Please choose one

   

Question No: 8    ( Marks: 1 )    - Please choose one

 

 PCM is the first process of PAM.

       ► True

       ► False

   

Question No: 9    ( Marks: 1 )    - Please choose one

Modulation of an analog signal can be accomplished through changing the

___________ of the carrier signal.

►amplitude

►frequency

►phase

►all of the given

   

Question No: 10    ( Marks: 1 )    - Please choose one

 

The amplitude of a digital signaldepends upon the________ to represent a bit.

       ► phase

       ► voltage

       ► wavelength

   

Question No: 11    ( Marks: 1 )    - Please choose one

  

Time domain plot show changes in signal phase with respect to time.

       ► True

       ► False

   

Question No: 12    ( Marks: 1 )    - Please choose one

 

OSI model was developed prior to TCP/IP model.

       ► True

       ► False

   

Question No: 13    ( Marks: 1 )    - Please choose one

  

The _________ layer is the layer closest to the transmission medium.

       ► physical

       ► data link

       ► network

       ► transport

   

Question No: 14    ( Marks: 1 )    - Please choose one

 

   

Question No: 15    ( Marks: 1 )    - Please choose one

 

In mesh topology, if there are five nodes then there will be  _______ links.

       ► 5

       ► 10

       ► 15

       ► 20

   

Question No: 16    ( Marks: 1 )    - Please choose one

 

   

Question No: 17    ( Marks: 1 )    - Please choose one

 

 _______ is a multipoint topology.

       ► Ring

       ► Mesh

       ► Tree

       ► Bus

   

Question No: 18    ( Marks: 2 )    - Please choose one

 

   

Question No: 19    ( Marks: 2 )    - Please choose one

 

   

Question No: 20    ( Marks: 2 )    - Please choose one

 

   

Question No: 21    ( Marks: 2 )

 

 What is purpose of distributed processing?

   

Question No: 22    ( Marks:3 )

  

What is amplitude of a signal describe in your words.

   

Question No: 23    ( Marks: 5 )

  

Describe Manchester encoding technique.

   

Question No: 24    ( Marks: 5)

 

Which encoding scheme is batter among all other schemes.