MCQ on Processor and Memory – Computer GK
Useful and informative MCQ on Processor and Memory that includes topics like CPU (Central Processing Unit), CU (Control Unit), ALU (Arithmetic Logic Unit), Instruction Set, Registers, Processor Types and Speed, Main Memory – RAM and ROM, Cache Memory, Main Memory Organization, etc.
These MCQ on Processor and Memory are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Processor and Memory have correct answers and brief explanations of each question for better understanding.
Q11. Which of the following is a type of cache memory?
a) L1 cache
b) L2 cache
c) L3 cache
d) All of the above
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Correct Answer: d) All of the above
Explanation: Cache memory is a small, high-speed memory located close to the CPU that stores frequently used data and instructions for faster access. There are different levels of cache memory, including L1, L2, and L3 cache. L1 cache is the fastest and smallest, located within the CPU itself. L2 cache is larger and slower than L1 cache, typically located on the CPU or nearby on the motherboard. L3 cache is even larger and slower than L2 cache, usually found on the motherboard and shared by multiple CPU cores.
Q12. Which of the following is a factor that affects main memory capacity?
a) Number of memory chips
b) Size of memory chips
c) Memory organization
d) All of the above
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Correct Answer: d) All of the above
Explanation: Main memory capacity is influenced by several factors, including the number of memory chips, the size of memory chips, and memory organization. The number of memory chips determines the total amount of storage available, while the size of memory chips affects the capacity of each chip. Memory organization, such as the arrangement of memory cells and the use of error-correcting codes, can also impact the overall capacity of the main memory.
Q13. Which of the following is NOT a type of main memory?
a) Dynamic Random Access Memory (DRAM)
b) Static Random Access Memory (SRAM)
c) Flash memory
d) Cache memory
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Correct Answer: d) Cache memory
Explanation: Cache memory is not a type of main memory. It is a small, high-speed memory located close to the CPU that stores frequently used data and instructions for faster access. Main memory consists of Dynamic Random Access Memory (DRAM) and Static Random Access Memory (SRAM). DRAM is a volatile memory that stores data temporarily and requires constant refreshing to maintain its contents, while SRAM is also a volatile memory but does not require refreshing, making it faster and more expensive than DRAM.
Q14. Which of the following is a characteristic of Static Random Access Memory (SRAM)?
a) Requires constant refreshing to maintain its contents
b) Slower and less expensive than Dynamic Random Access Memory (DRAM)
c) Non-volatile memory
d) Faster and more expensive than Dynamic Random Access Memory (DRAM)
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Correct Answer: d) Faster and more expensive than Dynamic Random Access Memory (DRAM)
Explanation: Static Random Access Memory (SRAM) is a type of volatile memory that does not require constant refreshing to maintain its contents, making it faster and more expensive than Dynamic Random Access Memory (DRAM). SRAM is typically used for cache memory and other high-speed storage applications within a computer system.
Q15. Which of the following is a characteristic of Dynamic Random Access Memory (DRAM)?
a) Requires constant refreshing to maintain its contents
b) Faster and more expensive than Static Random Access Memory (SRAM)
c) Non-volatile memory
d) Used primarily for cache memory
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Correct Answer: a) Requires constant refreshing to maintain its contents
Explanation: Dynamic Random Access Memory (DRAM) is a type of volatile memory that stores data temporarily and requires constant refreshing to maintain its contents. This refreshing process makes DRAM slower and less expensive than Static Random Access Memory (SRAM). DRAM is commonly used for main memory in computer systems.
Q16. Which of the following is a characteristic of non-volatile memory?
a) Loses its contents when power is turned off
b) Requires constant refreshing to maintain its contents
c) Retains its contents even when power is turned off
d) Used primarily for cache memory
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Correct Answer: c) Retains its contents even when power is turned off
Explanation: Non-volatile memory is a type of memory that retains its contents even when the power is turned off. This makes it suitable for long-term storage of data and instructions, such as the operating system, firmware, and user files. Examples of non-volatile memory include Read-Only Memory (ROM) and Flash memory.
Q17. Which of the following is a function of the Arithmetic Logic Unit (ALU) in a CPU?
a) Managing the flow of data and instructions between various components of the computer
b) Storing data temporarily during processing
c) Performing arithmetic and logical operations on data
d) Storing frequently used data and instructions for faster access
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Correct Answer: c) Performing arithmetic and logical operations on data
Explanation: The Arithmetic Logic Unit (ALU) is a component of the CPU responsible for performing arithmetic and logical operations on data. It processes the data according to the instructions provided by the Control Unit (CU) and stores the results in registers for further processing or output. The ALU plays a crucial role in the overall performance of a computer system, as it enables the CPU to execute complex tasks and calculations.
Q18. Which of the following is an advantage of multi-core processors?
a) Lower power consumption
b) Improved performance in single-threaded tasks
c) Increased ability to perform multiple tasks simultaneously
d) Reduced complexity of the instruction set
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Correct Answer: c) Increased ability to perform multiple tasks simultaneously
Explanation: Multi-core processors have multiple processing cores within a single CPU, allowing them to execute multiple tasks simultaneously. This parallel processing capability can significantly improve the overall performance of a computer system, especially in multi-threaded tasks and applications that can take advantage of multiple cores. However, the performance improvement in single-threaded tasks may be limited, as each core may have a lower clock speed compared to a single-core processor.
Q19. Which of the following is a disadvantage of Complex Instruction Set Computer (CISC) processors compared to Reduced Instruction Set Computer (RISC) processors?
a) Lower performance in parallel processing tasks
b) Slower execution of instructions due to the complexity of the instruction set
c) Reduced ability to perform multiple tasks simultaneously
d) Higher power consumption
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Correct Answer: b) Slower execution of instructions due to the complexity of the instruction set
Explanation: Complex Instruction Set Computer (CISC) processors have a large and complex instruction set, which can result in slower execution of instructions compared to Reduced Instruction Set Computer (RISC) processors, which have a smaller and simpler instruction set. The complexity of the instruction set in CISC processors can lead to increased power consumption and reduced performance in certain tasks. However, CISC processors may be more versatile and capable of executing a wider range of tasks due to their extensive instruction set.
Q20. Which of the following is an advantage of Reduced Instruction Set Computer (RISC) processors compared to Complex Instruction Set Computer (CISC) processors?
a) Larger and more complex instruction set
b) Faster execution of instructions due to the simplicity of the instruction set
c) Improved performance in parallel processing tasks
d) Increased ability to perform multiple tasks simultaneously
Show Answer
Correct Answer: b) Faster execution of instructions due to the simplicity of the instruction set
Explanation: Reduced Instruction Set Computer (RISC) processors have a smaller and simpler instruction set compared to Complex Instruction Set Computer (CISC) processors, which allows for faster execution of instructions. The simplicity of the instruction set in RISC processors can lead to lower power consumption and improved performance in certain tasks. However, RISC processors may be less versatile and capable of executing a narrower range of tasks due to their limited instruction set.
More MCQ on Computer GK for Competitive Exams
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