Dear Students,

Quiz No. 3 of CS601 will be held on January 29, 2014 and will also remain open on January 30, 2014. Lecture no. 23 to 31 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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QUIZ # 3>>>>>>>>>>>>>

Question # 1 of

Multiplexing is the set of techniques that allows simultaneous TX of multiple signals across a

___________ data link

Select correct option:

  • Single *
  • Double
  • Multi
  • None of the given

 

Question # 2 of 10

TROPOSHERE is the portion of the atmosphere extending outwards approx. 30 miles from the earth

Select correct option:

  • True *
  • False

 

Question # 3 of 10

Speed of light in a vacuum

Select correct option:

  • 200000 Km/sec
  • 300000 Km/sec *
  • 600000 Km/sec
  • None of Given

 

Question # 4 of 10

A traditional telephone line has a bandwidth of __________.

Select correct option:

  • 2000 Hz *
  • 4000 Hz
  • 2000 MHz
  • 4000 MHz

 

Question # 5 of 10

Mechanical specifications of _________ define a combination of two connectors , on with 37 pins and

one with 9 pins for a combined 46 pins.

Select correct option:

  • EIA 854
  • EIA 558
  • EIA 302
  • EIA 448 *

 

Question # 6 of 10

STP can eliminate a phenomenon called Crosstalk

Select correct option:

  • True *
  • False

 

Question # 7 of 10

A ______________ modem is used to connect two DTEs directly.

Select correct option:

  • NULL *
  • Cable
  • DSL
  • None of the given

 

Question # 8 of 10

TROPOSHERE is the layer of atmosphere above the troposphere but below space

Select correct option:

  • True
  • False *

 

Question # 9 of 10

Effective bandwidth of telephone line used for data transmission is 2400 Hz covering a range from 600

Hz to 3000 Hz.

Select correct option:

  • 1500 Hz
  • 1200 Hz
  • 2000 Hz
  • 2400 Hz *

 

Question # 10 of 10

Bandwidth required for the ASK is equal to the __________ of the signal.

Select correct option:

  • Baud rate *
  • Frequency
  • Period
  • Phase

QUIZ # 3>>>>>>>>>>>>>>

Question # 1 of 10

The __________ converts the signal to a format appropriate to the transmission medium and introduces

it onto the network link.

Select correct option:

  • DCE *
  • DTE
  • DCE & DTE
  • None of the given

 

Question # 2 of 10

TROPOSHERE is the portion of the atmosphere extending outwards approx. 30 miles from the earth

Select correct option:

  • True *
  • False

 

Question # 3 of 10

WDM stands for

Select correct option:

  • Wave Division Multiplexing *
  • Wrong Division Multiplexing
  • Well Division Multiplexing
  • West Division Multiplexing

 

Question # 4 of 10

Bit stuffing is the process in which extra bits are___________.

Select correct option:

  • Removed
  • Added
  • Added and Removed *
  • None of the above

 

Question # 5 of 10

Data rate limitation of traditional modems is 6KHz.

Select correct option:

  • True
  • False *

 

Question # 6 of 10

Time slots are dynamically allotted in _______________TDM technique.

Select correct option:

  • FDM
  • Asynchronous
  • WDM
  • Synchronous *

 

Question # 7 of 10

___________ uses a series of filters to decompose multiplexed signal into its constituent signals.

Select correct option:

  • MUX
  • DEMUX *
  • DELUX
  • any of the given

 

Question # 8 of 10

Mechanical specifications of _________ define a combination of two connectors , on with 37 pins and

one with 9 pins for a combined 46 pins.

Select correct option:

  • EIA 558
  • EIA 854
  • EIA 302
  • EIA 448 *

QUIZ # 3>>>>>>>>>>>>>>>>>>>>>

Q # 1: Traditional telephone lines can carry frequencies btw 300 Hz and 3300 Hz giving them a bandwidth of ___________.

  • 2000 Hz
  • 1000 Hz
  • 1500 Hz
  • 3000 Hz *

Q # 2: T-Connector is used thick connector.

  • True *
  • false

Q # 3: ___________ uses a series of filters to decompose multiplexed signal into its constituent signals.

  • MUX
  • DEMUX*
  • DELUX
  • any of the given

Q # 4: TROPOSHERE is the portion of the atmosphere extending outwards approx. 30 miles from the earth

  • true *
  • false

Q # 5: No addressing is necessary in asynchronous TDM.

  • ·         True *
  • false

Q # 6: ______ generates the data and passes it along with any control information to a ________.

  • DTE, DCE *
  • DCE, DTE
  • DTE, DTE
  • DCE, DCE

Q # 7: Mechanical specifications of _________ define a combination of two connectors, on with 37 pins and one with 9 pins for a combined 46 pins.

  • EIA 558
  • EIA 854
  • EIA 302
  • EIA 448 *

Q # 8: Permanent analog connection between two subscribers is called. ________________.

  • Switched 56 Service
  • Analog Leased Service
  • DDS *
  • DS

Q # 9: MUX adds extra bits to a device in bit ______

  • Stuffing
  • Adding
  • Multiplication *
  • Exchanging

Q # 10: Switched analog service is leased line.

  • true *
  • false

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Question # 1

The broad cast signal is received by orbiting satellite which subscriber

To the resender

To the sender

To the atmosphere

To the receiver on earth pg 135

Question # 2

FDM technique is used fot ____ signal

Analog pg149

Digital

both

none

Question # 3

Permanent and dedicated analog connection between two subscribers is called

 

Switched/56 service

DDS

DS

Leased analog service162

 Question # 4

In __ a signals is directed straight from antenna to antenna

Line of sight propagation pg 135

Ground propagation

Space propagation

Troposcopic propagation

Question # 5

Signals are transmitted from one device to another

 

Analog not sure

Light

Binary

Electromagnetic energy

Question # 6

T connection is used

Thin Ethernet

Thick Ethernet

Terminator

Reflection

Question # 7

There are ___ further categories in multimode fiber

2 pg 129

3

4

5

Question # 8

Multiplexing has long been used as an essential tool

 

Ethernet industry

Telephone industry pg 160

Space science

VLAN

Question # 9

PSTN stands for________________

Public switched telephone network

Pakistan standard telephone network

Private switched telephone network

Public standard telephone network

 

Question # 10

Digital line has ___ signal and __  susceptible noise

Less, more

Better, less pg 164

Better, more

More, more

please jo wrong han woh correct kr dan


BC100401707
Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 1 of 10 ( Start time: 02:55:45 PM )     Total Marks: 1
In ______________, a signal is directed straight from antenna to antenna.
Select correct option:
    Line of sight propagation
    Ground propagation
    Space propagation
    Tropospheric propagation

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 2 of 10 ( Start time: 02:56:49 PM )     Total Marks: 1
Unused bandwidth between channels to prevent signals from overlapping is called _____________.
Select correct option:
    Frequency
    Time Period
    Guard Bands
    Spectrum

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 3 of 10 ( Start time: 02:57:49 PM )     Total Marks: 1
STP is more expensive than UTP and is less susceptible to _______.
Select correct option:
    Noise
    Data
    Voice
    Crosstalk

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 4 of 10 ( Start time: 02:58:25 PM )     Total Marks: 1
Digital data is modulated by ___________.
Select correct option:
    ISP
    Modem
    DTE
    DCE

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 5 of 10 ( Start time: 02:59:12 PM )     Total Marks: 1
Multiplexing has long been used as an essential tool in ______.
Select correct option:
    Electronic industry
    Telephone industry
    Space science
    VLAN

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 6 of 10 ( Start time: 02:59:50 PM )     Total Marks: 1
Bit stuffing is the process in which extra bits are___________.
Select correct option:
    Removed
    Added
    Added and Removed
    None of the above

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 7 of 10 ( Start time: 03:00:54 PM )     Total Marks: 1
MUX adds extra bits to a device in bit ______
Select correct option:
    Stuffing
    Adding
    Multiplication
    Exchanging

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 8 of 10 ( Start time: 03:01:43 PM )     Total Marks: 1
Digital line has ____ speed and ___ suspectible to noise.
Select correct option:
    less, more
    better, less
    less, less
    better, more

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 9 of 10 ( Start time: 03:02:25 PM )     Total Marks: 1
A prism can deflect the light depending upon the angle of ____________ and the frequency.
Select correct option:
    Deviation
    Incident
    Refraction
    Reflection

Quiz Start Time: 02:55 PM     
Time Left     90
sec(s)     
Question # 10 of 10 ( Start time: 03:03:04 PM )     Total Marks: 1
Which of the following techniques takes data from one high speed line and breaks it into portions?
Select correct option:
    Inverse subtraction
    Inverse addition
    Multiplexing
    Inverse multiplexing

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