CodeHS Software Development and App Development Accreditations 2

Question 1

In CodeHS app development, which layout widget in Flutter arranges children in a horizontal line?

Accepted Answer

Row

Answer

The Row widget in Flutter places its children side-by-side horizontally.

Question 2

What does the term 'refactoring' mean in software development?

Accepted Answer

Restructuring existing code without changing its behavior

Answer

Refactoring improves code structure, readability, or efficiency while keeping the same external behavior.

Question 3

Which version control command creates a new independent copy of a remote repository on your local machine?

Accepted Answer

git clone

Answer

git clone downloads a full copy of a remote repository to your local system.

Question 4

In object-oriented programming, what is 'encapsulation'?

Accepted Answer

Bundling data and methods that operate on that data within one unit

Answer

Encapsulation hides internal state and groups related data and behavior inside a class.

Question 5

Which HTTP status code indicates a successful GET request?

Accepted Answer

200

Answer

HTTP 200 OK means the request was received, understood, and processed successfully.

(CodeHS) Code High School Certifications Practice Test