Memory Unit MCQs 31 min Score: 0 Attempted: 0/31 Subscribe 1. The main function of the memory unit is to: (A) Process data (B) Store data and instructions temporarily or permanently (C) Display output (D) Control input devices 2. Which of the following is volatile memory? (A) Hard Disk (B) ROM (C) RAM (D) Flash Drive 3. Which memory is non-volatile? (A) ROM (B) Cache (C) RAM (D) Registers 4. RAM stands for: (A) Read-Only Memory (B) Read Access Memory (C) Rapid Access Memory (D) Random Access Memory 5. ROM stands for: (A) Read-Only Memory (B) Random Output Memory (C) Rapid Output Memory (D) Read Access Memory 6. Which of the following is temporary storage? (A) RAM (B) ROM (C) Hard Disk (D) Flash Drive 7. Cache memory is used to: (A) Increase CPU processing speed (B) Store data permanently (C) Store input device data (D) Display output 8. Which memory is faster? (A) RAM (B) Hard Disk (C) Cache (D) CD-ROM 9. Registers are located: (A) Inside CPU (B) On Motherboard (C) On Hard Disk (D) In Monitor 10. Which of the following is primary memory? (A) Hard Disk (B) CD-ROM (C) RAM (D) USB Drive 11. Which of the following is secondary memory? (A) RAM (B) ROM (C) Registers (D) Hard Disk 12. EPROM can be erased using: (A) Heat (B) Magnetic field (C) UV light (D) Electricity 13. PROM can be programmed: (A) Multiple times (B) Never (C) Only once (D) Using magnetic field 14. Flash memory is a type of: (A) Volatile memory (B) Non-volatile memory (C) Cache memory (D) Register 15. Which memory stores BIOS of a computer? (A) RAM (B) Hard Disk (C) Cache (D) ROM 16. The fastest memory available to CPU is: (A) RAM (B) Registers (C) Cache (D) Hard Disk 17. SDRAM stands for: (A) Synchronous Data RAM (B) Static Dynamic RAM (C) Serial Data RAM (D) Synchronous Dynamic RAM 18. DRAM needs to be refreshed: (A) Never (B) Occasionally (C) Continuously (D) Only during shutdown 19. SRAM stands for: (A) Secondary RAM (B) Synchronous RAM (C) Static Random Access Memory (D) Standard RAM 20. Volatile memory loses data when: (A) System is running (B) Power is off (C) Data is stored (D) CPU is idle 21. Non-volatile memory retains data: (A) Only during power on (B) Only in cache (C) For a few seconds (D) Permanently, even without power 22. Virtual memory is implemented using: (A) Registers (B) Cache (C) Hard Disk (D) ROM 23. Which memory is closest to CPU for fast access? (A) ROM (B) RAM (C) Hard Disk (D) Cache 24. Memory hierarchy is designed to: (A) Reduce CPU speed (B) Store input data (C) Reduce cost and increase performance (D) Display output 25. Which of the following is fastest secondary storage? (A) Hard Disk (B) Magnetic Tape (C) CD-ROM (D) SSD 26. Which of the following is slowest primary memory? (A) Cache (B) Registers (C) SRAM (D) DRAM 27. ROM cannot be: (A) Read (B) Non-volatile (C) Used for BIOS (D) Programmed multiple times easily 28. Memory used for buffering and temporary storage during processing is: (A) RAM (B) ROM (C) Cache (D) Registers 29. Which memory type is used in USB flash drives? (A) ROM (B) Cache (C) RAM (D) Flash memory 30. Which type of RAM is used in modern PCs for higher speed? (A) DRAM (B) SRAM (C) SDRAM (D) EPROM 31. Which memory unit is part of CPU but smaller than cache? (A) RAM (B) ROM (C) Registers (D) Flash
