SRAM and flash memory

Which memory is mainly used in USB flash drives and SD cards?

  1. ASRAM
  2. BNAND flash memory
  3. CDRAM
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Answer: B. NAND flash memory

Storage devices such as USB flash drives, SD cards and SSDs use NAND flash memory, a high-capacity, low-cost non-volatile memory. DRAM and SRAM are volatile and lose data at power-off, so they are not used as portable storage media.

  • A. SRAM is volatile and mainly used for caches and similar.
  • B. Correct. High-capacity, non-volatile NAND flash is used.
  • C. DRAM is volatile and mainly used as main memory.
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More SRAM and flash memory questions

  1. How many bits does an SLC (single-level cell) flash memory store per cell?
  2. Which correctly describes an SSD compared with an HDD (hard disk drive)?
  3. What is the most appropriate main use of SRAM?
  4. In NAND flash memory, what is needed to write new data to a page that already contains data?
  5. Which correctly describes the difference between EEPROM and flash memory?