Section $1\mathrm{.}5$

Two important design issues for cache memory are

A$)$ speed and volatility

B$)$ size and replacement policy

C$)$ power consumption and reusability

D$)$ size and access privileges

$A(n),$ is the unit of work in a system.

A$)$ process

B$)$ operating system

C$)$ timer

D$)$ mode bit

Program counter specifies the current instruction to execute.

True

False