Software Engineering Prep 2

Question 1

Which SDLC model is best suited when requirements are well-understood and unlikely to change?

Accepted Answer

Waterfall

Answer

Waterfall's sequential phases work best when requirements are stable and fully defined upfront.

Question 2

In software engineering, what does 'technical debt' refer to?

Accepted Answer

Future rework caused by taking shortcuts in development

Answer

Technical debt is the implied cost of future refactoring when a quick solution is chosen over a better long-term approach.

Question 3

What is the primary purpose of a code review?

Accepted Answer

To catch defects and improve code quality before merging

Answer

Code reviews allow peers to identify bugs, logic errors, and design issues before code reaches production.

Question 4

Which data structure uses LIFO (Last In, First Out) ordering?

Accepted Answer

Stack

Answer

A stack removes the most recently added element first, following LIFO order.

Question 5

What does 'DRY' stand for in software development principles?

Accepted Answer

Don't Repeat Yourself

Answer

DRY means every piece of knowledge should have a single authoritative representation to reduce redundancy.

Software Engineering Practice Test