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ECAT Computer Science Online Test MCQs With Answers
Question # 1
ASCII 7 bit code can represent maximum
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265 character
128 character
64 character
65536 character
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Question # 2
The fastest type of ADC is
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time interval
parallel
closed loop
successive
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Question # 3
The first few working computers.
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were all made by American scientists
were used almost exclusively for text processing
generally had black and white CRT screen
were, for the most part, developed for wartime uses
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Question # 4
________ is component of data communication.
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Sender
Receiver
Encoder and Decoder
All
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Question # 5
The signals produced by a computer or terminal to be sent over phone lines must be converted to.
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modems
analog signals
digital signals
microwave
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Question # 6
A magnetize spot represent
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CPI
MB
0 bit
1 bit
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Question # 7
Assigning more sector to outer hard disk is called
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zone recording
randomizing
sectoring
data transfer
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Question # 8
A bit can be
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1 and 0
1 or 0
1 only
0 only
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Question # 9
Information travels between components of a computer through groups of wires called.
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cards
busses
slots
ports
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Question # 10
The reason why computers have been designed to use binary numbers is.
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computer circuits have to handle 2 binary digits rather than 10
electronic components, by their very nature, operate in a binary mode
everything that can be done with a base of 10 can also be done in binary
all of the above
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Question # 11
The cursor can be moved rolling this device on a flat surface.
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mouse
wand reader
trackball
interactive tablet
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Question # 12
A pictorial screen symbol that represent a computer activity is called
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pointer
touch screen
icon
miicr
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Question # 13
An AND gate will function as OR if.
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all the inputs to the gates are "I"
all the inputs are "O"
a Not gate is added to it
all the inputs and outputs are complemented
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Question # 14
A bar code reader is an example of a(n).
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processing device
storage device
Input device
output device
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Question # 15
_______ pointing devices has a vertical handle like a gearshift lever:
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Light pen
Pointing stick
Trackball
Joystick
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Question # 16
Four-digit binary number 1011 is represented in the decimal system by.
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7
9
11
13
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Question # 17
The FORTRAN equivalent of the mathematical expression ab/cd is.
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A * B / C * D
A.B / C.D
A * B / (C*D)
A*B/B*D
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Question # 18
Memory capacity may be expressed in.
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microseconds
kilobytes
bits
cycles
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Question # 19
Cabling on a linear bus topology can be extended using which of the following?
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Terminator
Barrel connector
Network adapter card
Medium attachment unit
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Question # 20
Identify the legal FORTRAN arithmetic assignment statement?
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X = a+b +
1
0.75 = A - B
c
SN - a * (1-r **n) / (1 - r)
NET + PR = SALE - COST
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Question # 21
How many input leads will be required for a chip containing four two-input Not gates?
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7
14
12
13
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Question # 22
Data gathering and data analysis take place.
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after the system survey
after system analysis
during system design
during evaluation
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Question # 23
Object program is
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A program written in machine language
A program to be translated into machine language
The translation of a high-level language into machine language
None of the above
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Question # 24
The first digital computer to work electrically was the.
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UNIVAC
Atanasoff-Berry Computer
Mark I
analytical machine
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Question # 25
BIT stands for:
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Binary integer
Binary Digit
Binary Interval
None of the above
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Question # 26
SNA stands for
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Simple Network Adapter
System Network Arhitecture
System Network Application
Small Network Application
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Question # 27
Computer is a combination of:
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Software
Hardware
Both A and B
None
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Question # 28
On a linear bus topology cabling can be extended by using following device
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Network Adapter Card
Barrel Connector
Terminator
Modem Card
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Question # 29
An organic chip is called a.
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storage chip
biochip
microchip
silicon chip
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Question # 30
A CPU has
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control unit consisting of program counter and instruction decoded,and arithmetic unit having accumulator.
bubble memory
visual display unit
auxiliary storage unit
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Question # 31
The corresponding memory spaces for pages are called
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page utility
page frames
page blocks
page modules
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