Memory and Storage Questions and Answers

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Q21
FIFO is formed by an arrangement of ________.
  • A diodes
  • B transistors
  • C MOS cells
  • D shift registers
Answer: Option D
Q22
Why do most dynamic RAMs use a multiplexed address bus?
  • A It is the only way to do it.
  • B to make it faster
  • C to keep the number of pins on the chip to a minimum
Answer: Option C
Q23
CCD stands for ________.
  • A capacitor charging device
  • B capacitor-capacitor drain
  • C charged-capacitor device
  • D charge-coupled device
Answer: Option D
Q24
What is the major difference between SRAM and DRAM?
  • A DRAMs must be periodically refreshed.
  • B SRAMs can hold data via a static charge, even with power off.
  • C The only difference is the terminal from which the data is removed—from the FET Drain or Source.
  • D Dynamic RAMs are always active; static RAMs must reset between data read/write cycles.
Answer: Option A
Q25
Which of the following best describes volatile memory?
  • A memory that retains stored information when electrical power is removed
  • B memory that loses stored information when electrical power is removed
  • C magnetic memory
  • D nonmagnetic
Answer: Option B
Q26
What is a major disadvantage of RAM?
  • A Its access speed is too slow.
  • B Its matrix size is too big.
  • C It is volatile.
  • D High power consumption
Answer: Option C
Q27
What two functions does a DRAM controller perform?
  • A address multiplexing and data selection
  • B address multiplexing and the refresh operation
  • C data selection and the refresh operation
  • D data selection and CPU accessing
Answer: Option B
Q28
Dynamic memory cells store a data bit in a ________.
  • A diode
  • B resistor
  • C capacitor
  • D flip-flop
Answer: Option C
Q29
Which is not part of a hard disk drive?
  • A Spindle
  • B Platter
  • C Read/write head
  • D Valve
Answer: Option D
Q30
ROMs retain data when the ________.
  • A power is off
  • B power is on
  • C system is down
  • D all of the above
Answer: Option D

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