26. Which type of memory is primarily used for buffering and caching?
A) RAM
B) Cache Memory
C) ROM
D) Hard Disk
Answer: B) Cache Memory
27. What is the main function of registers in a CPU?
A) Store data permanently
B) Hold instructions and data temporarily
C) Manage virtual memory
D) Store operating system files
Answer: B) Hold instructions and data temporarily
28. The speed of which type of memory is closest to that of the CPU?
A) RAM
B) ROM
C) Cache Memory
D) Hard Disk
Answer: C) Cache Memory
29. Which memory is directly accessible by the CPU?
A) Virtual Memory
B) Secondary Memory
C) Primary Memory
D) Cloud Storage
Answer: C) Primary Memory
30. What does the term "memory address" refer to?
A) Physical location of the CPU
B) Location where a piece of data is stored in memory
C) IP address of a network
D) Address of external storage
Answer: B) Location where a piece of data is stored in memory
31. Which type of memory is used for BIOS firmware?
A) DRAM
B) SRAM
C) ROM
D) Cache
Answer: C) ROM
32. What type of ROM can be modified only once after manufacturing?
A) PROM
B) EPROM
C) EEPROM
D) Flash Memory
Answer: A) PROM
33. Which type of RAM is faster but more expensive?
A) DRAM
B) SRAM
C) Flash Memory
D) Virtual Memory
Answer: B) SRAM
34. What is the purpose of memory interleaving?
A) Increase processing speed by dividing memory access
B) Store permanent data
C) Replace cache memory
D) Reduce ROM dependency
Answer: A) Increase processing speed by dividing memory access
35. What happens when a computer runs out of RAM?
A) It shuts down
B) It starts using virtual memory
C) It deletes unused files
D) It stops executing instructions
Answer: B) It starts using virtual memory
36. What type of storage is found in SSDs?
A) Optical Storage
B) Magnetic Storage
C) Flash Memory
D) RAM
Answer: C) Flash Memory
37. What is the primary purpose of DRAM refresh cycles?
A) Improve performance
B) Prevent data loss by refreshing stored charges
C) Speed up CPU operations
D) Manage cache memory
Answer: B) Prevent data loss by refreshing stored charges
38. What is the main disadvantage of volatile memory?
A) It is slow
B) It loses data when power is turned off
C) It is expensive
D) It cannot store data
Answer: B) It loses data when power is turned off
39. Which of the following is an example of secondary memory?
A) Cache Memory
B) SSD
C) RAM
D) Register
Answer: B) SSD
40. Which type of ROM can be erased by exposing it to ultraviolet light?
A) EEPROM
B) PROM
C) EPROM
D) Flash Memory
Answer: C) EPROM
41. What is the function of a memory controller?
A) Manage data transfer between CPU and memory
B) Increase storage space
C) Replace RAM
D) Control secondary storage devices
Answer: A) Manage data transfer between CPU and memory
42. What is the main benefit of virtual memory?
A) Increases speed of cache memory
B) Allows execution of larger programs
C) Makes the CPU faster
D) Reduces storage requirements
Answer: B) Allows execution of larger programs
43. Which of the following is NOT a characteristic of cache memory?
A) It is faster than RAM
B) It stores frequently accessed data
C) It is a type of primary memory
D) It is non-volatile
Answer: D) It is non-volatile
44. What is the unit of memory storage?
A) Bit
B) Pixel
C) Hertz
D) Voltage
Answer: A) Bit
45. The L1 cache is located:
A) In RAM
B) On the CPU chip
C) In secondary storage
D) In the motherboard
Answer: B) On the CPU chip
46. What is a memory leak?
A) Data loss due to power failure
B) A condition where memory is allocated but not released
C) A type of RAM failure
D) A virus attack on memory
Answer: B) A condition where memory is allocated but not released
47. Which of the following is the slowest type of memory?
A) Cache
B) RAM
C) Hard Disk
D) Register
Answer: C) Hard Disk
48. How is data stored in flash memory?
A) Using magnetic fields
B) Using electrical charges
C) Using optical technology
D) Using mechanical parts
Answer: B) Using electrical charges
49. Which of the following statements about RAM is true?
A) RAM is non-volatile
B) RAM is slower than a hard disk
C) RAM is used for temporary data storage
D) RAM stores data permanently
Answer: C) RAM is used for temporary data storage
50. Which of the following is NOT a type of computer memory?
A) SSD
B) RAM
C) ROM
D) CPU
Answer: D) CPU
