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03 - DRAM and SRAM

 1. Both DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory) are types of RAM.
sr1.jpg

  TRUE

  FALSE

 2. Fill in the blanks.
The most common form of RAM is ___________________.

  DRAM

  SRAM

  Flash memory

  VideoRAM

 3. How often does a memory controller automatically refresh memory in DRAM?

  Once every minute

  A few times per second

  It doesn't refresh it at all

  Thousands of times per second

 4. Dynamic RAM is faster than Static RAM
sr2.png

  TRUE

  FALSE

 5. What is the difference between DRAM and SRAM

  DRAM is faster

  SRAM needs its data to be refreshed otherwise loses it

  DRAM needs its data to be refreshed otherwise loses it

  DRAM is physically bigger

 6. Both DRAM and SRAM are volatile and lose data once the power is removed.

  TRUE

  FALSE

 7. SRAM is smaller than DRAM.

  TRUE

  FALSE

 8. Fill in the blanks.
The cycle time of ____________ is greater than that of __________ and
____________has more capacity than _____________.
sr3.png

  SRAM, DRAM, DRAM, SRAM

  DRAM, SRAM, SRAM, DRAM

  SRAM, DRAM, SRAM, DRAM

  DRAM, SRAM, DRAM, SRAM

 9. DRAM is used as the main memory, whereas on-chip caches are usually SRAMs.

  TRUE

  FALSE

 10. Fill in the blanks.
With _______________, the bits of data are stored in cells that consist 
of a capacitor and transistor.

  SRAM

  neither SRAM nor DRAM

  DRAM

  both SRAM and DRAM

 11. Why is SRAM denoted as 'static'?

  Because it has to be periodically refreshed

  Because it consumes more power than DRAM

  Because it doesn't move

  Because it stores each bit of data as long as it constantly gets electric power

 12. DRAM is more expensive than SRAM.
sr4.jpg

  TRUE

  FALSE

 13. DRAM has a simpler construction compared to SRAM.

  FALSE

  TRUE

 14. Which one consumes less power while in sleep mode?
sr5.png

  DRAM

  They consume the same amount of power

  They consume no power while in sleep mode

  SRAM

 15. Typically, SRAM requires less power than DRAM.

  False

  True