IKM Software Development 2

Question 1

What is the primary benefit of dependency injection?

Accepted Answer

Loose coupling between components

Answer

Dependency injection promotes loose coupling by providing dependencies externally rather than creating them internally.

Question 2

Which design pattern ensures a class has only one instance?

Accepted Answer

Singleton

Answer

The Singleton pattern restricts instantiation to a single object with a global access point.

Question 3

What does the 'O' in SOLID stand for?

Accepted Answer

Open/Closed Principle

Answer

The Open/Closed Principle states entities should be open for extension but closed for modification.

Question 4

What is a race condition?

Accepted Answer

A bug where behavior depends on timing of uncontrolled events

Answer

A race condition occurs when behavior depends on the timing of events like two threads accessing shared data.

Question 5

Which version control workflow creates a branch for each feature?

Accepted Answer

Feature branch workflow

Answer

Feature branch workflow creates a dedicated branch for each feature, keeping main stable.

IKM - International Knowledge Measurement Practice Test