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Dear Students,

Quiz No. 4 of CS601 will be held on February 25, 2014 and will also remain open on February 26, 2014. Lecture no. 23 to 42 will be included in the quiz. You are required to attempt the quiz as early as possible once it is available to you.

Best of Luck!

Regards,

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Replies to This Discussion

very  helpfulll  thnx

All Ans are 100% Sure

Speed of light in a vacuum

300000 Km/sec

There are _________ types of redundancy checks used in data communication.

4

 

Fiber Technology supports ______ modes for the propagation of light.

2

The ____ is HDLC’s error detection field.

FCS

BSC supports _____________ transmission using ______________ flow control.

 

If a T-1 carries 8000 frames, then data rate will be ___________

1.544 Mbps

__________ means that the signal changes its form or shape.

Distortion 

CRC must have ______ qualities to be valid.

2

Thanks for sharing

q3 answer

half duplex

stop and wait

1: In Digital Data Service, maximum data rate is

 

50kbps

64kbps

33kbps

All

 

2: Ethernet LANs can support data rates between _______________

1 and 200 Mbps

1 and 100 Mbps (correct option)

 

3: A prism can deflect the light depending upon the angle of ____________ and the frequency.

Deviation

Incident (correct option)

Refraction



4: Line discipline is done in ____ways

3

2(correct option)

1

4

5: If the primary wants to receive data, it asks the second-arise if they have anything to send, this is called

POLLING (correct option)

SELECTING

Editing

Indicating

6: Line discipline is an important function of ____________ layer.

 

Physical

Transport

Data link (correct option)

Network


7: The ____ is HDLC’s error detection field.

Flag

BCC

BSC

FCS


8: WDM stands for


Wave Division Multiplexing (correct option)

Wrong Division Multiplexing

Well Division Multiplexing

9: A portion of the path that carries TX between a given pair of devices is known as __________.

Node

Bridge

Channel (correct option)

10: Frequency Division Multiplexing technique is used for _______________ signal

Analog (correct option)

Digital

Analog and Digital

None of these

11: CRC must have ______ qualities to be valid.

4

3

2(correct option)

5

12: Ethernet LANs can support data rates between _______________

1 and 200 Mbps

1 and 100 Mbps (correct option)

1 and 500 Mbps

1 and 100 Gbps

13: Block check count consist of ___________

 

Two byte LRC or one byte CRC

One Byte LRC or two byte CRC

Two byte LRC

Two byte CRC (correct option)

14: Which error detection method uses one's complement arithmetic?

Cyclic Redundancy Check (CRC)

Longitudinal Red Check (LRC)

Checksum

Simple Parity Check

15: Time slots are dynamically allotted in _______________TDM technique.

FDM

Asynchronous

WDM

Synchronous (correct option)

16: Optical signals are multiplexed using __________ at switching office to create wider BW optical signals.

 

WDM (correct option)

FDM

TDM

MUX

17: Data link protocols can be divided into ______________ sub-groups.

Two

Three (correct option)

Four

Five

Best of luck all of you 

Thanku D..

Welcome mahi 

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