Which of the following statements regarding Static RAM (SRAM) and Dynamic RAM (DRAM) is TRUE?

A.
Static RAM (SRAM) stores data as long as power to the memory chips is not interrupted.

B.
Static RAM (SRAM) uses IC capacitors that lose their charge over time and must be refreshed at regular intervals.

C.
Static RAM (SRAM) is much cheaper but also much slower than Dynamic RAM (DRAM).

D.
Static RAM (SRAM) can store approximately 75% less data than Dynamic RAM (DRAM) of the same size and is cheaper than Dynamic RAM (DRAM).

Explanation:
Unlike Dynamic RAM (DRAM), which stores data bits in rows and columns of IC capacitors that lose their charge over time, Static RAM (SRAM) stores data in IC transistors and can retain the data for long as power to the memory chips is not interrupted.

Incorrect Answers:
B: Static RAM (SRAM) uses IC transistors to store data. It is capable of maintaining it as long as power to the memory chips is not interrupted and does not need refreshing.
C: Static RAM (SRAM) is much faster than Dynamic RAM (DRAM) but is more expensive than DRAM.
D: Static RAM (SRAM) can store approximately 75% less data than Dynamic RAM (DRAM) of the same size, and is more expensive than DRAM.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 89-90.