Software Engineering Software Engineering 2

Question 1

Which design pattern ensures only one instance of a class exists throughout an application?

Accepted Answer

Singleton

Answer

The Singleton pattern restricts instantiation of a class to a single object and provides global access to that instance.

Question 2

In CI/CD pipelines, what does 'continuous delivery' mean?

Accepted Answer

Code is automatically tested and kept in a deployable state

Answer

Continuous delivery ensures code is always in a releasable state by automating build, test, and staging, but deployment to production is triggered manually.

Question 3

What is 'technical debt' in software engineering?

Accepted Answer

The implied cost of rework caused by choosing quick solutions over better approaches

Answer

Technical debt refers to the future rework required when shortcuts or suboptimal solutions are chosen to speed up delivery.

Question 4

Which SOLID principle states that a class should have only one reason to change?

Accepted Answer

Single Responsibility Principle

Answer

The Single Responsibility Principle (SRP) states that a class should have only one job or responsibility.

Question 5

What is the primary purpose of a code review?

Accepted Answer

To catch defects, ensure code quality, and share knowledge

Answer

Code reviews improve software quality by identifying bugs and design issues early, and they help spread knowledge across the team.

Software Engineering Practice Test

Software Engineering Practice Test

Software Engineering Software Engineering 2