IKM Software Development 2

Question 1

What is the primary benefit of dependency injection?

Accepted Answer

Loose coupling between components

Answer

Faster compilation

Answer

Reduced memory usage

Answer

Automatic error handling

Question 2

Which design pattern ensures a class has only one instance?

Accepted Answer

Singleton

Answer

Factory

Answer

Observer

Answer

Strategy

Question 3

What does the 'O' in SOLID stand for?

Accepted Answer

Open/Closed Principle

Answer

Object-Oriented Principle

Answer

Overhead Optimization

Answer

Output Coupling Principle

Question 4

What is a race condition?

Accepted Answer

A bug where behavior depends on timing of uncontrolled events

Answer

Programs competing for CPU time

Answer

A performance benchmark

Answer

An optimization technique

Question 5

Which version control workflow creates a branch for each feature?

Accepted Answer

Feature branch workflow

Answer

Trunk-based development

Answer

Centralized workflow

Answer

Forking workflow

Question 6

What is the purpose of code refactoring?

Accepted Answer

Improve internal code structure without changing external behavior

Answer

Add new features

Answer

Fix reported bugs

Answer

Migrate programming languages