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ECAT Computer Science Chapter 2 Digital Computer Fundamentals Online Test MCQs With Answers
Question # 1
Memory capacity may be expressed in.
Choose an answer
microseconds
kilobytes
bits
cycles
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Question # 2
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 # 3
During E time the ALU
Choose an answer
examines the instruction
enters the instruction
executes the instruction
elicits the instruction
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Question # 4
IEEE 802.3 is
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Device Name
Protocol
Topology
None
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Question # 5
Step-by-step instructions that run the computer are.
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hardware
documents
programs
CPUs
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Question # 6
The most common protocol used in WAN is
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Ethernet
X.25
IEEE
ISO
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Question # 7
Network topologies are categorized into the following basic types
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Bus, Ring
Star , Tree
Mesh
All of the above
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Question # 8
A LAN is a combination of.
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LAN cables
Network adapter card
LAN Application Software
All of the above
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Question # 9
Data and instructions are put into primary storage by.
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memory
the control unit
secondary storage
the ALU
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Question # 10
The central processing unit comprises of
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memory ,VDU and printers
input devices output devices and memory
software arithmetic and logic unit,and control unit
software,hardware,and power supply unit
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Question # 11
The number of bytes in the following number (1111, 1011, 0111,0100,1010) is.
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5
2 1/2
10
1 2/4
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Question # 12
Which of the following is an example of volatile memory.
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ROM
RAM
PROM
Hard disk
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Question # 13
What does ISDN stands for?
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International Service Data Network
International Service Digital Network
Integrated Service Data Network
Integrated Service Digital Network
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Question # 14
The business conducted with the help of computer network is called
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E-commercial
E-commerce
E-comunication
Nothing
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Question # 15
At the beginning of the instruction cycle, the contents of the Instruction Register specify.
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Operand for the instruction being executed
Instruction itself
Operand for the instruction to be executed next
None of above
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Question # 16
Wrong Statement.
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Information stored in RAM can be changed by over writing it
Information stored in ROM cannot be changed by over writing it
Information can be stored in any location of RAM
Computer main memory can be accessed only sequentially
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