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Online Tests
Computer Science 9th Class English Medium Online Test MCQs With Answers
Question # 1
Binary Arithmetic operations.use.................?
Choose an answer
Addition
Subtraction
Multiplication
All of these
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Question # 2
In an RGB color model, what does RGB stand for?
Choose an answer
Red. Green Brown
Red, Gray, Black
Red, Green, Blue
Right ,Green, Blue
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Question # 3
Which term reers to the process of restoring data froma backup?
Choose an answer
Data Retrieval
Data Validation
Data Restoration
Data Synchronization
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Question # 4
Brian of computer is...........?
Choose an answer
RAM
UDP
CPU
RAM
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Question # 5
1 MB =.............bytes
Choose an answer
(1024)
5
bytes
(1024) KB or (1,024)
2
3000
400
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Question # 6
Which of the following is a potential risk of not backing up data.?
Choose an answer
Data loss due to hardware failure or malware attack
Increased system performance
Faster sytem boot times
Improved file accessibility
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Question # 7
the output of AND Operation is 1 only whenboth inputs are?
Choose an answer
10
0
1
00
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Question # 8
Which of the following is a example of preventive maintenance for a computer system.
Choose an answer
Replacing a faulty hard drive
Removing malware after infection
Restarting the sytem when it freezes
Applying software updaes regularly
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Question # 9
What does ADC represents?
Choose an answer
Analog Digital Conversation
Analog Digital Conversion
Analog Digital Convenient
All of these
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Question # 10
Whcih of the following is an example of identifying a problem in troubleshooting.
Choose an answer
Testing a laptop battery by plugging in the power cord
Noticing that a laptop does not turn on when the power button is pressed
Witting down that a laptop battery was replaced
Coming up with a plan to replace a laptop battery
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Question # 11
Whihc signals are in discree form?
Choose an answer
Analog
Digital
Both a and b
None of these
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Question # 12
Which of the following is an example of a Natural system.
Choose an answer
Banking System
Human Circulatory system
Transporation System
Computer System
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Question # 13
Pixel Stands for?
Choose an answer
Picture Identitiy
Picture Element
Picture Digit
None of these
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Question # 14
UTF stands for?
Choose an answer
Unicode Transformation Formula
United Transformation format
Unicode Transforamtion Formation
None of these
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Question # 15
What is the primary difference between signed and unsigned integers?
Choose an answer
Unsigned integers cannot be negative
Signed integers have a larger range
Unsigned integers are stored in floating -point format
Signed integers are used for positive numbers
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Question # 16
How does utility software differe from application software?
Choose an answer
Utility softwarw manages hardware while application software performs specific tasks for users
Utility software is free while application software is paid
Untility software creates documents, while application software manages hardware.
Utility software perform specitiit takss for users while application software manages hardware.
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Question # 17
Whcih one of the example of Digital Signal?
Choose an answer
Binary
Sound Wave
11
00
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Question # 18
After implementaing a solution what is the next step in the troubleshooting process?
Choose an answer
Document Findings, Actions, and outcomes
Establish a plan of action to resolve the problem
Veriry full system funcionality
Test the etheory to determine the cause.
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