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41. Which of the following is a correct definition of volatile memory?
A. It does retain its contents at high temperatures
B. It is to be kept in air-tight boxes
C. It loses its contents on the failure of power supply
D. It does not lose its contents on the failure of supply
ANSWER:C
SOLUTION : Volatile memory is a kind of memory that maintains its data just while the device is powered. If the power is interrupted for any motive, the data is lost.
42. Which of the following is not true about RAM?
A. RAM is the same as hard disk storage
B. RAM is a temporary storage area
C. RAM is volatile
D. RAM is a primary memory
ANSWER: A
SOLUTION:RAM is the same as hard disk storage. The computer has both RAM and ROM, which stands for random access memory and read-only memory, respectively.
43. Information stored in RAM needs to be ________.
A. Check
B. Refresh periodically
C. Modify
D. Detecting errors
ANSWER:B
SOLUTION:Information stored in RAM needs to be refreshed periodically. RAM, or Random Access Memory, is a type of volatile memory that provides temporary storage for data and instructions.
44. Storage that retains its data after the power is turned OFF is referred to as ________.
A. Volatile storage
B. Non-volatile storage
C. Sequential storage
D. Direct storage
ANSWER:B
SOLUTION:Non-volatile storage is computer memory that can retain data even when the power is off. In contrast, volatile memory loses data when the system shuts down.
45. Dynamic RAM consumes ___ power and ___ than static RAM.
A. More, faster
B. More, slower
C. Less, slower
D. Less, faster
ANSWER:B
SOLUTION: Dynamic RAM (DRAM) consumes more power and is slower than static RAM (SRAM).
46. Which of the following memory chip is faster?
A. There is no certainty
B. DRAM
C. SRAM
D. RAM
ANSWER: C
SOLUTION: SRAM (Static Random Access Memory) is faster than DRAM (Dynamic Random Access Memory). SRAM is a type of RAM, which is a fast internal memory of the CPU that holds data temporarily.
47. What is called the permanent memory built into your computer?
A. RAM
B. ROM
C. CPU
D. CD-ROM
ANSWER: B
SOLUTION:The permanent memory built into a computer is called ROM, which stands for Read-Only Memory.
48. Which of the following is not a ROM?
A. PROM
B. EPROM
C. EEROM
D. EDPROM
ANSWER:B
SOLUTION: EEPROM is not a type of ROM. ROM, or read-only memory, has four types: MROM, PROM, EPROM, and EEPROM. EEPROM stands for Electrically Erasable Programmable Read-only Memory.
49. When you first turn on a computer, the CPU is preset to execute instructions stored in the ___________.
A. RAM
B. Flash memory
C. Rom
D. CD-RAOM
ANSWER: C
SOLUTION:When a computer is first turned on, the CPU is preset to execute instructions stored in ROM (Read-only memory).