Which of the following terms are examples of non$-$functional

requirements?

a$)$ Efficiency

b$)$ Security

c$)$ Usability

d$)$ All of the above

e$)$ A and B

Which of the following terms is not a requirements engineering phase?

a$)$ Inception

b$)$ Elicitation

c$)$ Elaboration

d$)$ Deterioration

When defining data flow diagrams $($DFDs$),$ the expansion ratio is

usually approximately $1$ to $5.$

a$)$ True

b$)$ False

Models created during the requirements phase are always discarded

during the design phase.

a$)$ True

b$)$ False

Requirements specify HOW a system is going to be built.

a$)$ True

b$)$ False