Computer Internet & Networking Short Questions -5

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Computer Internet & Networking Short Questions -5

Internet-5

Question 1
Which of the following communications lines is best suited to interactive processing appJIcatjons?
A
)narrow band channel
B
simplex lines
C
mixed band channels
D
full duplex lines
Question 2
A remote batch-processing I operation in which data is solely input to a central computer would require
A
telegraphp line
B
) none of the above
C
mixed bad channel
D
all of above
E
simplex lines
Question 3
A band is always equivalent to
A
) a byte
B
a bit
C
100 bits
D
none of the above .
Question 4
The loss in signal power as light travels down the fiber is called
A
interruption
B
progragation
C
scattering
D
attenuation
Question 5
Avalanche photodiode receivers can detect bits of transmitted data by receiving
A
200 photons
B
100 photons
C
) 2000 photons
D
300 photons'
Question 6
Communiction circuits that transmit data in both directions but not at the same time are operating in
A
a simplex mode
B
all the options
C
a full duplex mode
D
a half duplex mode
Question 7
An example of a medium speed, switched communications service is
A
series 1000
B
data phone 50
C
All of the above
D
ODD
Question 8
In communication satellite,multiple repeaters are known as
A
detector
B
modulator
C
transponders
D
stations
Question 9
While transmitting-odd-parity coded symbols, the number of zeros in each symbol is
A
odd
B
unknown
C
a and b both
D
even
Question 10
. Data communications monitors available on the software marked include
A
TOTAL
B
ENVIRON/1
C
BPL
D
Tel net
Question 11
An exajnple of an analog communication method is
A
laser beam
B
microwave
C
voice grade telephone line
D
none of the above
E
all of the above
Question 12
Number of bits per symbol used in Baudot code is .
A
7
B
9
C
8
D
5
Question 13
What is the main difference between DDCMP and SDLC?
A
DDCMP has a message header
B
DDCMP does not need special hardware to final the beginning of a message
C
SDLC has a IP address
D
SDLC does not use CRC
Question 14
An example of digital, ratherthan analog, communication is
A
DOS
B
DDD
C
WATS
D
DOT
Question 15
Terminals are required for
A
) real-time, batch processing & time-sharing
B
real time, timesharing & distributed message processing
C
real-time, time sharing & message switching
D
real time, distributed processing & manager inquiry
Question 16
The receive equilizer reduces delay distortions using a
A
gearshift
B
descrambler
C
tapped delay lines
D
difference engine
Question 17
Ina synchronous modem, the receive equilizer is known as
A
impariment equilizer
B
adaptive equilizer
C
statistical equilizer
D
compromise equilizer
Question 18
The channel in the data-communication model can be
A
postal mail services
B
telephone lines
C
none of the above
D
radio lines
E
all the above
Question 19
A data terminal serves as an
A
Effector
B
sensor
C
neither a nor b
D
both a and b
Question 20
Which of the following transmission systems provide the highest data rate to in individual device?
A
telephone lines
B
computer bus
C
voice and mode
D
lease lines
Question 21
A protocol is a set of rules governing a time sequence of events that must take place
A
between modems
B
between an interface
C
between peers
D
across an interface
Question 22
__ is used in operating system to separate mechanism from policy
A
Two level implementation
B
Single level implementation
C
Multi level implementation
D
All of the above
Question 23
The operating system creates.
A
Virtual computers
B
All the above
C
Virtual device
D
Virtual space
Question 24
from the physical computer__shares characteristics with both hardware and software
A
All the above
B
Software
C
Data
D
Operating system
Question 25
Multiprogramming systems
A
Are easier to develop than single programming systems
B
Execute more jobs in the same time period
C
Execute each job faster
D
Are used only one large mainframe computers.
Question 26
Multiprogramming systems
A
Are easier to develop than single programming systems
B
Execute more jobs in the same time period
C
Execute each job faster
D
Are used only one large mainframe computers.
Question 27
Multiprogramming systems
A
Are easier to develop than single programming systems
B
Execute more jobs in the same time period
C
Execute each job faster
D
Are used only one large mainframe computers.
Question 28
Multiprogramming systems
A
Are easier to develop than single programming systems
B
Execute more jobs in the same time period
C
Execute each job faster
D
Are used only one large mainframe computers.
Question 29
Which is the first program run on a computer when the computer boots up?
A
Operating system
B
System software
C
System operations
D
All the above
Question 30
Which is built directly on the hardware?
A
Computer Environment
B
Application Software
C
Data base System
D
Opera ti ng System
There are 30 questions to complete.

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