ICT Software Development Concepts 4

Question 1

What does 'Big O notation' measure in algorithm analysis?

Accepted Answer

The upper bound of an algorithm's time or space complexity relative to input size

Answer

Big O notation describes the worst-case upper bound of an algorithm's complexity (time or space) as the input size grows.

Question 2

In software testing, what is a 'mock object'?

Accepted Answer

A simulated object that mimics the behavior of real dependencies for testing purposes

Answer

A mock object imitates the behavior of real dependencies, allowing tests to verify interactions without relying on actual implementations.

Question 3

Which software development methodology emphasizes delivering working software in short iterations called sprints?

Accepted Answer

Scrum

Answer

Scrum is an agile framework that organizes work into time-boxed iterations called sprints, typically lasting 1–4 weeks.

Question 4

What is the role of a 'build tool' like Maven or Gradle in software development?

Accepted Answer

To automate compiling source code, managing dependencies, and packaging applications

Answer

Build tools like Maven and Gradle automate the process of compiling code, resolving dependencies, running tests, and packaging deployable artifacts.

Question 5

What is 'polymorphism' in object-oriented programming?

Accepted Answer

The ability of different objects to respond to the same interface or method call in their own way

Answer

Polymorphism allows objects of different classes to be treated through a common interface, with each class providing its own implementation.

ICT - Information Communication Technology Practice Test