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.
Q21. Which of the following is a disadvantage of multi-core processors?
a) Higher power consumption
b) Reduced performance in single-threaded tasks
c) Lower ability to perform multiple tasks simultaneously
d) Increased complexity of the instruction set
Show Answer
Correct Answer: b) Reduced performance in single-threaded tasks
Explanation: While multi-core processors can significantly improve performance in multi-threaded tasks and applications, they may have reduced performance in single-threaded tasks. This is because each core in a multi-core processor may have a lower clock speed compared to a single-core processor, which can limit the performance improvement in tasks that cannot take advantage of multiple cores.
Q22. Which of the following is a characteristic of volatile memory?
a) Loses its contents when power is turned off
b) Retains its contents even when power is turned off
c) Does not require constant refreshing to maintain its contents
d) Used primarily for long-term storage
Show Answer
Correct Answer: a) Loses its contents when power is turned off
Explanation: Volatile memory is a type of memory that loses its contents when the power is turned off. This makes it suitable for temporary storage of data and instructions during processing, such as in the case of Random Access Memory (RAM). Volatile memory typically has faster access times compared to non-volatile memory, but its inability to retain data without power makes it unsuitable for long-term storage.
Q23. Which of the following is a factor that affects cache memory performance?
a) Cache size
b) Cache organization
c) Cache replacement policy
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: Cache memory performance is influenced by several factors, including cache size, cache organization, and cache replacement policy. Cache size refers to the total amount of data that can be stored in the cache, with larger caches generally providing better performance. Cache organization refers to the arrangement of cache lines and the mapping of memory addresses to cache locations, which can impact the efficiency of cache access. Cache replacement policy determines how cache lines are replaced when the cache is full, with different policies having varying effects on cache performance.
Q24. Which of the following is a type of cache replacement policy?
a) Least Recently Used (LRU)
b) First-In, First-Out (FIFO)
c) Random Replacement
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: Cache replacement policies determine how cache lines are replaced when the cache is full. There are several types of cache replacement policies, including Least Recently Used (LRU), First-In, First-Out (FIFO), and Random Replacement. LRU replaces the cache line that has been accessed least recently, while FIFO replaces the cache line that was loaded first. Random Replacement selects a cache line at random for replacement. Each policy has its own advantages and disadvantages, depending on the specific access patterns of the data and instructions being processed.
Q25. Which of the following is a characteristic of Explicitly Parallel Instruction Computing (EPIC) processors?
a) Designed to execute multiple instructions simultaneously
b) Larger and more complex instruction set compared to RISC processors
c) Slower execution of instructions due to the complexity of the instruction set
d) Reduced ability to perform multiple tasks simultaneously
Show Answer
Correct Answer: a) Designed to execute multiple instructions simultaneously
Explanation: Explicitly Parallel Instruction Computing (EPIC) processors are designed to execute multiple instructions simultaneously, improving performance in parallel processing tasks. EPIC processors use a combination of hardware and software techniques to enable efficient parallel execution of instructions, such as instruction-level parallelism, predication, and speculation. This architecture can provide significant performance improvements in tasks that can take advantage of parallel processing capabilities.
Q26. Which of the following is a factor that affects the performance of a processor?
a) Instruction-level parallelism
b) Number of registers
c) Cache size
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: Processor performance is influenced by several factors, including instruction-level parallelism, the number of registers, and cache size. Instruction-level parallelism refers to the ability of a processor to execute multiple instructions simultaneously, which can improve performance in parallel processing tasks. The number of registers affects the amount of data and instructions that can be stored and accessed quickly during processing, with more registers generally providing better performance. Cache size determines the amount of frequently used data and instructions that can be stored for faster access, with larger caches typically offering improved performance.
Q27. Which of the following is a type of processor speed measurement?
a) Clock speed
b) Cache size
c) Number of cores
d) All of the above
Show Answer
Correct Answer: a) Clock speed
Explanation: Clock speed is a measurement of processor speed, referring to the number of clock cycles per second, measured in gigahertz (GHz) or megahertz (MHz). It determines how fast the processor can execute instructions. While cache size and the number of cores can also impact processor performance, they are not direct measurements of processor speed.
Q28. Which of the following is a type of memory organization?
a) Cache memory
b) Register memory
c) Random Access Memory (RAM)
d) Read-Only Memory (ROM)
Show Answer
Correct Answer: c) Random Access Memory (RAM)
Explanation: Memory organization refers to the arrangement and management of memory components in a computer system. The main memory consists of Random Access Memory (RAM) and Read-Only Memory (ROM). RAM is a volatile memory that stores data and instructions temporarily during processing, while ROM is a non-volatile memory that stores permanent data and instructions required for the computer’s basic operations.
Q29. Which of the following is a type of processor?
a) Complex Instruction Set Computer (CISC)
b) Reduced Instruction Set Computer (RISC)
c) Explicitly Parallel Instruction Computing (EPIC)
d) All of the above
Show Answer
Correct Answer: d) All of the above
Explanation: There are several types of processors, including Complex Instruction Set Computer (CISC), Reduced Instruction Set Computer (RISC), and Explicitly Parallel Instruction Computing (EPIC). CISC processors have a large and complex instruction set, while RISC processors have a smaller and simpler instruction set, allowing for faster execution. EPIC processors are designed to execute multiple instructions simultaneously, improving performance in parallel processing tasks.
Q30. Which of the following is a type of main memory?
a) Dynamic Random Access Memory (DRAM)
b) Static Random Access Memory (SRAM)
c) Flash memory
d) Cache memory
Show Answer
Correct Answer: a) Dynamic Random Access Memory (DRAM)
Explanation: Dynamic Random Access Memory (DRAM) is a type of main memory used to store data and instructions temporarily during processing. DRAM is a volatile memory that requires constant refreshing to maintain its contents, making it slower and less expensive than Static Random Access Memory (SRAM). Main memory also includes other types of memory, such as SRAM and Read-Only Memory (ROM), but cache memory is not considered a type of main memory.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
Get free Text Content Tools, Website Management Tools, Development Tools, Binary Converter Tools, Unit Converter Tools and SEO Tools on EuWebTools.