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CS 601 Current Midterm papers Dated 11-05-2012 to 22-05-2012  

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koi tou paper upload kr dy 

Mera hey Kal 13-May ko .... i will upload what ever i remember.

I am gonna share my paper. 

12 May 11:30 AM

            Requires the maximum number of I/O ports.

 

  Bus

  Star

  Mesh       

  Ring

Which topology requires a central controller or hub?

Mesh

Star    

Bus

Ring

Data synchronization is a function related with ___________

Session layer       

Presentation layer

Transport

Which one is not among standard creation committee?

Internet society and IETF

ITU-T

IEEE

The bit rate always equals the baud rate in which type of signal?

FSK

QAM

4-PSK

PSK

Modulation of an analog signal can be accomplished through changing the ___________ of the carrier signal.

Amplitude

Frequency

Phase

All of the given

             Representation of links that connect nodes is called as physical topology.

Geometrical 

Logical

Physical

Which layer is responsible for source to destination delivery of entire message?

Transport layer

Network layer

Session layer

Application layer

 

What is the protocol data unit (PDU) employed at the network layer?

Segments

Packets

Frames

Bits

 

In which type, the advantage is the reduction in the amount of energy required to transmit information.

On-Off keying

ASK

4-PSK

What is the maximum bit rate for EIA 232 interface

40Kbps

30Kbps

20Kbps

10Kbps

In which layer/layers headers are included

1&7

6, 5,4,3,2

1 only

7 only

In which Protocol, Systems share point-point link

Direct

Indirect

Monolithic

Symmetric

Difference between AMI and B8ZS is

Previous bit is 1’s

1’s is encountered

Occurs only when 8 or more consecutive zeros are encountered.       

thanks bahi 

Subjective Questions

 

Define Phase.                                                                                                                                  2

 

For which conversion Phase Modulation method is used?                                                        2

 

A sine wave has a frequency of 5Hz. What is its period?                                                           3

 

Iss question ma aik musical instrument ka modulating signal diya gya tha aur Bandwith of AM find krni thi.                                                                                                                            3

Look AM Bandwidth from Page 95

 

Iss question ma Baud rate aur bit rate find krni thi.                                                                  5

Look Example 5.6. It was similar to this.

 

What are Composite Signals                                                                                                         5


Remember everyone in your prayers,,,,

 Mirza Mohsin thanks for sharing paper to help other.keep sharing 

thank bahi 

CS601 Midterm Examz All Current papers in one thread Spring May 2012

I have today 13-5-2012 Data Communcation CS601 at 2:00PM, Faisal Town 
VU Campus.

All MCQ's are from past papers. 

Long Question are:
Q1: write the physical layer function.
Q2: (A)Differentiate b/w bandwidth and transport 
(B) Differentiate b/w bandwidth and throughput
Q3: Musical istruments are different sounds how a instrument works
on 15hts frequency.
Q4: why use why its use to convert audio using
analog to digital signals?

Q5: In telephone how voice frequency works. How voice and Data travels works in 
300 and 3300 

These are questions i got please study mcqs from past.

thanks bahi 

 Cs601 MidTerm Paper 11:30 Date 16/05/12

1st:-When we transmit data from one computer to the other using a public telephone line ,then what type of data conversion take place?[2 Marks]
2nd:-What is power Bandwidth?[2 Marks]
3rd:-Why digital signals are converted into Analog signals?[3 Marks]
4th:-Explain compost signals in detail[5 Marks]
5th:-Suppose the data point of a constellation diagram have valves of (Amplitude,phase) as(4,0) and (6,0). Is the modulation ASK, PSK, or QAM? Give reason with diagram.[5 Marks]
6th:-What are the sub types of serial transmission, list down their names and mention their positive and negative points[3 Marks]

thanks bahi 

today my paper 16-5-2012

Asynchronous transmission is ___________

       ► slow

       ► costly

       ► non-effective

       ► fast

 

____________ transmission the timing of the signal is unimportant.

Asynchronous

►Synchronous

►Polar

►Bi-polar

__________representation of links that connect nodes is called as physical topology.

geometrical

►logical

►physical

Line configuration refers to the way two or more devices attach to a ______.

       Link

       Circuit

       Route

       Node

Which topology requires a central controller or hub?

       Mesh

       Star

       Bus

       Ring

 

Data synchronization is a function related with ___________

       session layer

       presentation layer

       transport

Data synchronization is a function related with ___________

 

session layer

presentation layer

transport

The __________ generates the data and passes it along with any control

information to a ___________.

 

DTE; DCE

DCE; DTE

DCE; node

DTE; application

 

21- How bandwidth calculated ?

22- How much bandwidth is required for modem in care of FSK ?

23 -Bipolar and Rz Encoding Kuch aisa hi tha.

24- FSK,QAM,PSK AMPLITUDE , FREQUENCY, OPHASE name techniques ?

25- Musical Instrucment wala question tha.

26 -Buad and bit maloom karna tha ?

 enjoy

 

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