Echocardiogram Software Development Lifecycle

Question 1

What is the purpose of version control in software development?

Accepted Answer

To track changes, enable collaboration, and maintain code history

Answer

To backup files to an external drive

Answer

To count the number of lines of code written

Answer

To monitor developer productivity

Question 2

What is the DRY principle in programming?

Accepted Answer

Dont Repeat Yourself — avoid code duplication

Answer

Document, Review, Yield

Answer

Delete Redundant Yields

Answer

Debug and Run Yearly

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

There is no practical difference

Answer

Compiled languages are always faster

Answer

Interpreted languages cannot be used for web development

Question 4

What is the purpose of unit testing?

Accepted Answer

To verify that individual components of code work correctly in isolation

Answer

To test the entire application at once

Answer

To check network connectivity

Answer

To measure code performance only

Question 5

What is an algorithm?

Accepted Answer

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

Answer

A type of programming language

Answer

A hardware component of a computer

Answer

A network protocol

Question 6

What is the purpose of code review?

Accepted Answer

To identify bugs, improve code quality, and share knowledge among team members

Answer

To slow down the development process

Answer

To assign blame for errors

Answer

To satisfy management reporting requirements only