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CS601 Data Communication Solved Quiz No. 3 Solutions Spring Fall 2014
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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
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