Question

1 ) An example of a hardware feature that is necessary to support safe multiprogramming implementations is:

Privileged instructions

A completely accessible memory area

Fast clock cycles

None of these features are necessary

2 ) Caching generally works to take advantage of differing characteristics of the hierarchy of memory because:

References to memory are usually local

References to memory are usually random

Hard drive speeds are much slower than primary system memory

None of these are reasons why caching works

Answer 1

Answer:-----------

1. Privileged instructions

2. Hard drive speeds are much slower than primary system memory