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Online Tests
Computer Science 9th Class English Medium Online Test MCQs With Answers
Question # 1
OR operation yields 1 output when at least of........of the input is true.
Choose an answer
0
00
1
10
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Question # 2
What is the main disadvantage of the Von Neumann architecture.
Choose an answer
High cost of components.
Difficulty in executing machine language instructions
Limited data strorage capacity
Bottleneck due to shared memory access for instructions and data
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Question # 3
Hexadecimal system has total...............numbers.
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15
16
17
18
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Question # 4
What is the "3-2-1 backup rule?"
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3 backups, 2 devices, 1 recovery option
3 types of backup, 2 administraions , 1 cloud service
2 copies of data, 2 different storage types 1 offsite copy
3 files, 2 backups, 1 test restore
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Question # 5
What role do device drivers play ina computer system.
Choose an answer
Enhane Graphic performance
Create presentations
Manage Files
Facilittate communication between hardware devices and the operating system
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Question # 6
The binary value of the letter 'A' is 01000001 and its decimal value is.
Choose an answer
65
66
67
69
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Question # 7
Which of the following decribes the Von neumann architecture's main characteristic?
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Separate memory for data and instructions
Parallel execution of instructions
Single memoery store for both program instructions and data
Multiples CPUs fordifferent tasks
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Question # 8
Which logic gate outputs true only if both inputs are true?
Choose an answer
OR gate
AND gate
XOR gate
NOT gat
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Question # 9
In Von Neumannarchitecture, which component is responsible for controlling the flow of instructions and data?
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Arithmetic Logic Unit (ALU)
Control Unit(CU)
Cache Memory
Input/Output devices
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Question # 10
What is the primary function of a system.
Choose an answer
To work independently
To achieve a common goal
To create new systems
To provide entertainment
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Question # 11
Which Protocol ensures reliable data transmission between two devices over the Internet.
Choose an answer
UDP (User Datagram Protocol)
TCP (Transmision Control Protocol)
IP (Internet Protocol)
ICMP (Internet Control Message Protocol)
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Question # 12
Which of the following is an imput device?
Choose an answer
Monitor
Printer
Keybord
Speaker
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Question # 13
In K-map , K stand for..................?
Choose an answer
Knowldege
Karnaugh
Both a and b
None of these
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Question # 14
ASCII Code for"P' is....................?
Choose an answer
80
81
82
All of these
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Question # 15
What type of environment remins unchanged unless the system provides an output.
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Dynamic
Static
Deterministic
Non-deterministic
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Question # 16
Which of the following protocol is used to transfer web pages from a web server in a web browser?
Choose an answer
FTP (File Transfer Protocol)
HTTP (Hyper text Transfer Protocol)
SMTP(Simple Mail Transfer Protocol)
SNMP (Simple Network Managemetn Protocol)
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Question # 17
1 MB =.............bytes
Choose an answer
(1024)
5
bytes
(1024) KB or (1,024)
2
3000
400
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Question # 18
Which of the following is the first step in troubleshooting a system issue?
Choose an answer
Replace hardware componets
Idenfify the problem
Reinstall the operting system
Run a system update
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