Question

What happens when a task attempts to access memory outside its own address space?

(a) paging fault

(b) segmentation fault

(c) wait

(d) remains unchanged

The question was posed to me in an online quiz.

This question is from Memory Protection Unit topic in division Memory Systems of Embedded Systems

Answer 1

The correct option is (b) segmentation fault

To explain: Different tasks assign their own address space and whenever a task access memory outside its own address space, a segmentation fault result and which in turn results in the termination of the offending application.