Question

Which of the following is correct?

(a) Module A uses Module B if a correct version of B must be present for A to execute correctly

(b) Module A calls (or invokes ) module B if  B triggers execution of A

(c) All of the mentioned

(d) None of the mentioned

This question was posed to me in a dream while sleeping

This key question is from Layered Architectures in portion Visibility, Accessibility and Information Hiding of Software Architecture

Answer 1

Right choice is (a) Module A uses Module B if a correct version of B must be present for A to execute correctly

The best I can explain: Module A uses Module B if a correct version of B must be present for A to execute correctly and Module A calls (or invokes ) module B if  A triggers execution of B.