Computer Memory MCQ Test
50 Computer Memory multiple-choice questions with answers, from the ADCA syllabus. Instant score, full answer review, free and no signup.
Each attempt picks 25 questions at random from the 50 in this topic.
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Ask about the certificateAll 50 Computer Memory questions with answers
1. What does ROM stand for?
- A. Read Only Memory
- B. Randomly Ordered Memory
- C. Readily Operable Memory
- D. Rapidly Organized Memory
Answer: Read Only Memory
2. Which type of ROM can be erased with ultraviolet light?
- A. PROM
- B. EPROM
- C. Flash Memory
- D. RAM
Answer: EPROM
3. Which type of memory cannot be modified after it is manufactured?
- A. EPROM
- B. PROM
- C. ROM
- D. RAM
Answer: ROM
4. What is the primary purpose of cache memory?
- A. Long-term storage
- B. To speed up data access
- C. To hold permanent data
- D. To store user settings
Answer: To speed up data access
5. Which type of RAM is used for temporary data storage during processing?
- A. SRAM
- B. DRAM
- C. ROM
- D. PROM
Answer: DRAM
6. What does EPROM stand for?
- A. Erasable Programmable Read Only Memory
- B. Electric Programmable Read Only Memory
- C. Electronic Permanent Read Only Memory
- D. Easily Programmable Read Only Memory
Answer: Erasable Programmable Read Only Memory
7. What is the characteristic of PROM?
- A. It is rewriteable
- B. It can be programmed once
- C. It is volatile
- D. It is slower than RAM
Answer: It can be programmed once
8. What type of memory holds firmware for hardware devices?
- A. Cache Memory
- B. ROM
- C. RAM
- D. HDD
Answer: ROM
9. Which memory type is fastest?
- A. Cache
- B. RAM
- C. ROM
- D. Disk Storage
Answer: Cache
10. In memory hierarchy, which type is the most economically efficient for large data storage?
- A. Cache Memory
- B. Solid State Drive
- C. HDD
- D. RAM
Answer: HDD
11. Which type of RAM does not need to be refreshed?
- A. DRAM
- B. SRAM
- C. NAND
- D. Flash Memory
Answer: SRAM
12. What is a common use for cache memory?
- A. Storing permanent files
- B. Executing programs
- C. Storing frequently accessed data
- D. Backup storage
Answer: Storing frequently accessed data
13. Which type of memory typically has the largest storage capacity?
- A. Cache
- B. RAM
- C. SSD
- D. ROM
Answer: SSD
14. Where is cache memory located?
- A. Between the CPU and RAM
- B. On the motherboard
- C. Within the hard drive
- D. Inside ROM modules
Answer: Between the CPU and RAM
15. How is data lost in volatile memory?
- A. When power is removed
- B. When data is overwritten
- C. When it is erased
- D. When the computer is shut down
Answer: When power is removed
16. What is the function of NVRAM?
- A. Temporary storage
- B. Permanent storage
- C. Read on the fly
- D. Increased bandwidth
Answer: Permanent storage
17. What is the main difference between SRAM and DRAM?
- A. Speed
- B. Cost
- C. Volatility
- D. All of the above
Answer: All of the above
18. What type of cache is built directly into the CPU?
- A. L1 Cache
- B. L2 Cache
- C. L3 Cache
- D. Disk Cache
Answer: L1 Cache
19. What type of memory is primarily used in embedded systems?
- A. Flash Memory
- B. RAM
- C. Cache
- D. PROM
Answer: Flash Memory
20. Which memory type can be programmed many times?
- A. EPROM
- B. PROM
- C. RAM
- D. Flash Memory
Answer: Flash Memory
21. What distinguishes ROM from RAM?
- A. Speed
- B. Volatility
- C. Capacity
- D. Size
Answer: Volatility
22. Which of the following is not a type of RAM?
- A. SDRAM
- B. DRAM
- C. EPROM
- D. SRAM
Answer: EPROM
23. Which hierarchy level has the lowest access speed?
- A. Cache Memory
- B. RAM
- C. HDD
- D. Registers
Answer: HDD
24. What is the primary role of a Memory Management Unit (MMU)?
- A. Manage disk space
- B. Translate virtual addresses to physical addresses
- C. Store firmware
- D. Speed up calculations
Answer: Translate virtual addresses to physical addresses
25. Which type of memory is typically used in computers for high-speed data access?
- A. ROM
- B. HDD
- C. Cache
- D. Flash
Answer: Cache
26. In a memory hierarchy, what comes directly after cache memory?
- A. RAM
- B. Hard Drive
- C. ROM
- D. SSD
Answer: RAM
27. What does the term 'write cycle' refer to?
- A. The time taken to read data
- B. The process of storing data
- C. The speed of data transfer
- D. The method of data retrieval
Answer: The process of storing data
28. Which component of memory typically operates at the fastest speeds?
- A. Cache
- B. HDD
- C. RAM
- D. ROM
Answer: Cache
29. What does 'latency' refer to in memory terms?
- A. Delay in data access
- B. Speed of data storage
- C. Volume of data stored
- D. Type of memory used
Answer: Delay in data access
30. What is a common feature of EEPROM memory?
- A. Volatile
- B. Can be electrically erased
- C. Cost-effective
- D. Has high density
Answer: Can be electrically erased
31. What happens when a computer transitions to sleep mode?
- A. Data moves to HDD
- B. Power to RAM is cut off
- C. Data is kept in RAM
- D. All tasks are halted
Answer: Data is kept in RAM
32. Which type of RAM is designed to be written to quickly?
- A. Dynamic RAM
- B. Static RAM
- C. Magnetic RAM
- D. Flash RAM
Answer: Static RAM
33. What is a disadvantage of using DRAM?
- A. Higher cost
- B. Requires constant refreshing
- C. Slower than SRAM
- D. None of the above
Answer: Requires constant refreshing
34. Which memory type is typically implemented in smart cards?
- A. Flash Memory
- B. DRAM
- C. SRAM
- D. PROM
Answer: Flash Memory
35. In which of the following scenarios is cache memory particularly useful?
- A. Streaming movies
- B. Running applications
- C. Frequent file access
- D. Downloading files
Answer: Frequent file access
36. Which memory type is used for permanent storage in a typical computer?
- A. Cache
- B. RAM
- C. HDD
- D. ROM
Answer: HDD
37. What does 'cache hit' mean?
- A. Data retrieved from RAM
- B. Data retrieved from the cache
- C. Data stored correctly
- D. Data not found in memory
Answer: Data retrieved from the cache
38. Which memory type is used primarily for computer boot tasks?
- A. ROM
- B. RAM
- C. Cache
- D. HDD
Answer: ROM
39. What is the disadvantage of using PROM?
- A. Not reusable
- B. Low speed
- C. Volatile
- D. Requires power
Answer: Not reusable
40. What is typically stored in cache memory?
- A. Frequently accessed data
- B. Operating System
- C. Permanent files
- D. User profiles
Answer: Frequently accessed data
41. What does a dual in-line package (DIP) commonly refer to?
- A. A form factor for ROM
- B. A motherboard layout
- C. A cache type
- D. A type of CPU
Answer: A form factor for ROM
42. Which of the following is a feature of NVRAM?
- A. Non-volatile
- B. Requires constant power
- C. Slower than DRAM
- D. Only used in embedded systems
Answer: Non-volatile
43. What type of cache is usually slower but has larger storage capacity?
- A. L1 Cache
- B. L3 Cache
- C. L2 Cache
- D. Memory Buffer
Answer: L2 Cache
44. Which memory type is best for applications that require quick access?
- A. HDD
- B. Flash Memory
- C. Cache
- D. ROM
Answer: Cache
45. What characterizes the structure of memory hierarchy?
- A. Single layer
- B. Multi-layer
- C. Random structure
- D. Flat structure
Answer: Multi-layer
46. What does 'DRAM’ require that SRAM does not?
- A. Power
- B. Refresh cycles
- C. Longer circuits
- D. Higher costs
Answer: Refresh cycles
47. Which component allows data to move quickly between the CPU and RAM?
- A. Address Bus
- B. Control Bus
- C. Data Bus
- D. Memory Bus
Answer: Data Bus
48. In which memory type is data stored in tiny capacitors?
- A. SRAM
- B. Flash
- C. HDD
- D. DRAM
Answer: DRAM
49. Which type of memory can be rewritten repeatedly and quickly?
- A. PROM
- B. EPROM
- C. Flash
- D. ROM
Answer: Flash
50. Cache memory is fastest because it is usually located:
- A. Off the motherboard
- B. In the CPU
- C. In RAM modules
- D. On the Hard Drive
Answer: In the CPU
Frequently asked questions
How many Computer Memory questions are in this test?
This page has 50 Computer Memory MCQs with answers. Each attempt picks 25 of them at random.
Is the Computer Memory test free?
Yes — it is free, needs no signup, and you can retake it as many times as you like.
Can I get a certificate for this test?
Score 50% or more and you can claim a certificate from Alien Institute of Computer at 40% off. The WhatsApp button appears on your result screen.