You are selecting memory for a new computer. You need to use DDR2 memory. However, the
catalog from which you are ordering has incomplete information. Which of the following types of
RAM does DDR2 come under?

A.
DRAM

B.
RDRAM

C.
SDRAM

D.
SIMM

Explanation:

The types of synchronous Data RAM are DDR, DDR2, and DDR3 RAM.
Answer option A is incorrect. Dynamic Random Access Memory is not the same as DDR.
Answer option B is incorrect. Rambus DRAM is actually an alternative to DDR and is more expensive.
Answer option D is incorrect. SIMM is a legacy memory type.
Reference: http://www.answers.com/topic/sdram-2