B.S.W.E. Bachelor of Software Engineering Software Architecture & Design Patterns 1

Question 1

What design pattern ensures only one instance of a class exists?

Accepted Answer

Singleton

Answer

The Singleton pattern restricts instantiation of a class to a single object throughout the application lifecycle.

Question 2

Which architectural pattern separates an application into Model, View, and Controller?

Accepted Answer

MVC

Answer

MVC divides application logic into Model (data), View (UI), and Controller (business logic) components.

Question 3

What pattern allows incompatible interfaces to work together?

Accepted Answer

Adapter

Answer

The Adapter pattern converts the interface of a class into another interface that clients expect, enabling compatibility.

Question 4

Which design pattern defines a skeleton of an algorithm in a base class?

Accepted Answer

Template Method

Answer

The Template Method pattern defines the program skeleton in a base class while allowing subclasses to override specific steps.

Question 5

In microservices architecture, what is the primary benefit of service decomposition?

Accepted Answer

Independent deployability

Answer

Microservices allow each service to be independently developed, deployed, and scaled without affecting other services.

B.S.W.E. Bachelor of Software Engineering Practice Test