What allows 16-bit Rambus to operate at higher speeds that conventional 64-bit memory buses?

A.
IC transistors.

B.
Error Checking and Correction (ECC).

C.
Interleaving.

D.
The internal data channel in Rambus.

Explanation:
Rambus is a proprietary DRAM memory technology that uses an internal 16-bit data channel that operates in conjunction with a 400 MHz clock and allows Rambus to operate at much higher speeds than more conventional 64-bit memory buses Incorrect Answers: A: Static RAM (SRAM) stores data in IC transistors rather than IC capacitors, which loose their charge over time and require periodic data-refreshing.
B: Error Checking and Correction (ECC) RAM uses a parity memory scheme to detect and fix memory errors that would otherwise cause memory errors when the data is read.
C: Server memory can be logically divided into multiple sections to allow the processor to access data held in memory from multiple sources. Typical interleaving schemes divide the memory into two banks of RAM, allowing data in one bank of memory to be accessed while the data in the other bank refreshes.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 89-95.