B.S.W.E. Bachelor of Software Engineering Software Architecture & Design Patterns 3

Question 1

What does SOLID stand for in object-oriented design?

Accepted Answer

Single responsibility, Open/closed, Liskov substitution, Interface segregation, Dependency inversion

Answer

SOLID represents five object-oriented design principles introduced by Robert C. Martin for writing maintainable and scalable code.

Question 2

The Facade pattern is used to:

Accepted Answer

Provide a unified interface to a complex subsystem

Answer

The Facade pattern provides a simplified, unified interface to a complex subsystem, making it easier to use without knowing its internals.

Question 3

What is 'coupling' in software architecture?

Accepted Answer

The degree of interdependence between modules

Answer

Coupling refers to the degree of interdependence between software modules — low coupling is preferred for maintainability.

Question 4

Which pattern is used to define a family of algorithms and make them interchangeable?

Accepted Answer

Strategy

Answer

The Strategy pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable at runtime without changing clients.

Question 5

What is the primary advantage of a layered architecture?

Accepted Answer

Separation of concerns with clear layer responsibilities

Answer

Layered architecture separates concerns across presentation, business logic, and data layers, making systems easier to maintain and test.

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