SP Software Development Lifecycle 1

Question 1

What is the purpose of version control in software development?

Accepted Answer

To track changes, enable collaboration, and maintain code history

Answer

Version control systems track all code changes, enabling team collaboration and providing a complete history of modifications.

Question 2

What is the DRY principle in programming?

Accepted Answer

Dont Repeat Yourself — avoid code duplication

Answer

DRY means every piece of knowledge should have a single, unambiguous representation in a system, reducing redundancy.

Question 3

What is the difference between compiled and interpreted languages?

Accepted Answer

Compiled code is translated to machine code before execution; interpreted code is translated line by line during execution

Answer

Compiled languages are fully translated before execution, while interpreted languages are translated during runtime.

Question 4

What is the purpose of unit testing?

Accepted Answer

To verify that individual components of code work correctly in isolation

Answer

Unit tests verify individual components in isolation, catching bugs early and making code more maintainable.

Question 5

What is an algorithm?

Accepted Answer

A step-by-step procedure for solving a problem or accomplishing a task

Answer

An algorithm is a finite sequence of well-defined instructions for solving a specific problem or performing a computation.

SP (Certified Service Provider) Practice Test