ICT Software Development Concepts 2

Question 1

Which design pattern ensures a class has only one instance and provides a global access point to it?

Accepted Answer

Singleton

Answer

The Singleton pattern restricts instantiation of a class to a single object and provides a static method to access it.

Question 2

In version control, what does 'rebasing' a branch accomplish?

Accepted Answer

Moves or replays commits onto a new base commit

Answer

Rebasing re-applies commits from one branch on top of another, resulting in a linear commit history.

Question 3

What is the primary purpose of a code linter?

Accepted Answer

Analyze code for stylistic and programmatic errors

Answer

A linter statically analyzes code to flag programming errors, bugs, stylistic issues, and suspicious constructs.

Question 4

Which principle does the 'D' in SOLID stand for?

Accepted Answer

Dependency Inversion Principle

Answer

The Dependency Inversion Principle states that high-level modules should not depend on low-level modules; both should depend on abstractions.

Question 5

What does 'technical debt' refer to in software development?

Accepted Answer

The accumulated cost of shortcuts and suboptimal code decisions

Answer

Technical debt represents the future cost of rework required because quick, easy solutions were chosen over better long-term approaches.

ICT - Information Communication Technology Practice Test