CPU (Central Processing Unit) MCQs
Practice CPU MCQs with answers and explanations covering ALU, CU, registers, processors and central processing unit concepts frequently asked in competitive exams.
Question #21
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Which of the following is an example of a control register?
Correct Answer: Option C
Explanation:
Flag or status registers hold information about the state of the CPU after operations.
Flag or status registers hold information about the state of the CPU after operations.
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CPU (Central Processing Unit)
Question #22
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ALU performs operations on data received from:
Correct Answer: Option C
Explanation:
ALU works with data held in CPU registers.
ALU works with data held in CPU registers.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #23
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The term 'microprocessor' refers to:
Correct Answer: Option D
Explanation:
Modern CPUs are implemented as microprocessors integrating ALU, CU, etc.
Modern CPUs are implemented as microprocessors integrating ALU, CU, etc.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #24
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During execution phase, the CPU:
Correct Answer: Option B
Explanation:
Execution involves performing the actual operation specified by the instruction.
Execution involves performing the actual operation specified by the instruction.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #25
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Which component ensures synchronization in CPU operations?
Correct Answer: Option D
Explanation:
The system clock generates timing signals for coordinating CPU activities.
The system clock generates timing signals for coordinating CPU activities.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #26
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General Purpose Registers (GPRs) are used for:
Correct Answer: Option A
Explanation:
GPRs provide flexible temporary storage during program execution.
GPRs provide flexible temporary storage during program execution.
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Computer
CPU (Central Processing Unit)
Question #27
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The von Neumann architecture features:
Correct Answer: Option A
Explanation:
In von Neumann model, instructions and data share the same memory space.
In von Neumann model, instructions and data share the same memory space.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #28
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What is the role of the Instruction Register?
Correct Answer: Option D
Explanation:
It stores the instruction fetched from memory for decoding.
It stores the instruction fetched from memory for decoding.
This question belongs to:
Computer
CPU (Central Processing Unit)
Question #29
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Hyper-threading technology allows a CPU core to:
Correct Answer: Option B
Explanation:
It enables better utilization by handling multiple threads per core.
It enables better utilization by handling multiple threads per core.
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Computer
CPU (Central Processing Unit)
Question #30
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The Memory Address Register (MAR) holds:
Correct Answer: Option A
Explanation:
MAR contains the address for memory read or write operations.
MAR contains the address for memory read or write operations.
This question belongs to:
Computer
CPU (Central Processing Unit)
