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ECAT Computer Science Online Test MCQs With Answers
Question # 1
In preparing a program, desk-checking and translation are example of
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coding
planning
testing
documentating
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Question # 2
A digital computer performs its computation by
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mechanical means
analogy
guessing
counting
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Question # 3
125
8
(octal) in decimal equivalent is equal to.
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83
10
84
10
85
10
86
10
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Question # 4
Pictures on a monitor are composed of tiny dots called.
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a pixels
CRTs
VDTs
elements
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Question # 5
A device that connects multiple nodes to the network is.
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A modem
A repeater
A router
A hub
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Question # 6
Transmit data in the form of light is called
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Fiber glass
UTP
Color glass
None
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Question # 7
Logical addition refers to operation of
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OR gate
AND gate
NOT gate
invertr gate
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Question # 8
Data us transmitted block by block in
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Asynchronous mode
Synchronous mode
Communication mode
Satellite mode
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Question # 9
An operating system used exclusively with the manufacturer's computer
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DOS
proprietary
UNIX
NOS
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Question # 10
Debug is a term denoting
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error correction process
writing of instruction in developing a new program
fault detection in equipment
determine useful life
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Question # 11
The equipment attached to CPU which computer can access are called
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Hardware
input output devices
peripherals
computer components
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Question # 12
A network of geographically distant computers and terminals is called a.
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bus
WAN
gateway
LAN
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Question # 13
The time between the user's request and the computer's reply
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concurrent time
response time
allocation time
event time
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Question # 14
The complex set of electrical circuitry that executes program instructions is called the.
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register
central processing unit
accumulator
bus line
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Question # 15
Logical multiplication refers to operation of.
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OR gate
AND gate
NOT gate
inverter gater
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Question # 16
First-generation computers were characterized by the use of the.
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microprocessor
vacuum tube
transistor
integrated circuit
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Question # 17
Binary coded decimal number express each decimal digit as
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binary degits
nibble
word
byte
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Question # 18
Rearranging of data in sequence is called
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updating
editing
batching
sorting
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Question # 19
If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to.
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CPU
disk
CRT
printer
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Question # 20
Laser beam technology is used in one of the following
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Monitors
Magnetic Disk
Optical Disks
Mouse
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Question # 21
The equipment attached to CPU which computer can access are called.
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hardware
input/output devices
peripherals
computer components
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Question # 22
Real time system
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are effective in process control
process transactions by means of direct-access devices
process data in manner similar to batch-access devices
are not possible to achieve control
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Question # 23
The part of the computer system which performs the house keeping functions is called
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Interpreter
Compiler
Operating system
Assembler
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Question # 24
An interfact is basically a component that
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test the system
corrects the errors in program
allows two incompatible entities with one another
enhances the capability of a system/equipment
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Question # 25
The 'Boolean Algebra' is based on the premise that
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there are two states
differential equations can be solved by analog circuits.
either a statement is true or false
arithmetic operations can be carried out
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Question # 26
The most common storage devices in a computer system are.
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printers and monitors
disk drives and printer
disk drives and tape derives
tape drives and keyboards
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Question # 27
A collection of related fields in data organizing is called
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group
register
file
record
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Question # 28
Rearranging data in a new sequence is known as.
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Updating
Batching
Sorting
Summarising
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Question # 29
The major operational problem of the early first generation computers was
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inaccurate results
poor reliability
delayed results
limited capabilities
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Question # 30
The binary number 101000101011 is equal to the hexadecimal number
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A2D
C2D
A2B
B2C
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Question # 31
IBM's System/360 family of computers was introduced during the.
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1950s
third generation
second generation
1990s
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