Multiple choice

The refreshing rate of dynamic RAM is approximately once in

  1. 2 micro seconds

  2. 2 milli seconds

  3. 50 milli seconds

  4. 2 seconds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dynamic RAM (DRAM) stores data as charge in capacitors that leak over time, requiring periodic refreshing to maintain data integrity. The typical refresh interval is 2-4 milliseconds, with 2ms being a common standard. This is much faster than 50ms or 2 seconds, but much slower than 2 microseconds which would be impractical for the capacitor technology used.

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