According to the Symantec Global Internet Security Threat Report, Symantec monitors the proliferation of malicious code by examining the number of new created to detect threats from each reporting period.

Suppose a cpu with a write-through, write-allocate cache achieves a cpi of 2. what are the read and write bandwidths (measured by bytes per cycle) between ram and the cache? (assume each miss generates a request for one block.)