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Quiz: Development Tools and Version Control

Test your understanding of git, development tools, and programming environments.

1. What is Git?

  1. A text editor
  2. A distributed version control system
  3. A programming language
  4. A cloud storage service
Show Answer

The correct answer is B. Git is a distributed version control system that tracks changes in files, enabling collaboration, branching, and maintaining history. It's the most widely used version control system in software development.

Concept Tested: Git

See: Chapter 22 - Git Overview

2. What does git clone do?

  1. Creates a new empty repository
  2. Downloads a copy of a remote repository
  3. Clones your hard drive
  4. Duplicates a branch
Show Answer

The correct answer is B. git clone downloads a complete copy of a repository, including all files and history. For example, git clone https://github.com/user/repo.git clones that repository to your machine.

Concept Tested: Git Clone

See: Chapter 22 - Git Clone

3. What does git commit -m "message" do?

  1. Sends changes to GitHub
  2. Saves staged changes to the local repository with a message
  3. Deletes the previous commit
  4. Merges two branches
Show Answer

The correct answer is B. git commit saves your staged changes to the local repository as a snapshot. The -m flag lets you add a message describing what changed. Changes aren't sent to remote until you git push.

Concept Tested: Git Commit

See: Chapter 22 - Git Commit

4. What is the difference between git pull and git fetch?

  1. They're identical
  2. pull fetches AND merges; fetch only downloads
  3. fetch is faster
  4. pull works offline
Show Answer

The correct answer is B. git fetch downloads updates from the remote but doesn't merge them into your working branch. git pull does both: it fetches and then automatically merges (or rebases) the changes.

Concept Tested: Git Pull, Git Fetch

See: Chapter 22 - Git Pull

5. What is a Python virtual environment?

  1. A virtual machine running Python
  2. An isolated Python installation with its own packages
  3. A Python IDE
  4. Cloud-based Python
Show Answer

The correct answer is B. A virtual environment is an isolated Python installation that has its own packages, separate from the system Python. This prevents package conflicts between projects and keeps the system clean.

Concept Tested: Python Virtual Environments

See: Chapter 22 - Virtual Environments

6. What command creates a Python virtual environment?

  1. pip install venv
  2. python -m venv myenv
  3. virtualenv create myenv
  4. python --venv myenv
Show Answer

The correct answer is B. python -m venv myenv creates a virtual environment named "myenv". Activate it with source myenv/bin/activate (Linux/Mac) or myenv\Scripts\activate (Windows).

Concept Tested: Creating Virtual Environments

See: Chapter 22 - Creating Venvs

7. What does pip do?

  1. Plays music files
  2. Installs Python packages from PyPI
  3. Compiles Python code
  4. Pretty-prints Python output
Show Answer

The correct answer is B. pip (Package Installer for Python) downloads and installs packages from the Python Package Index (PyPI). For example, pip install requests installs the requests library.

Concept Tested: Pip

See: Chapter 22 - Pip

8. What is GitHub?

  1. An alternative to Git
  2. A web-based hosting service for Git repositories
  3. A code editor
  4. A programming language
Show Answer

The correct answer is B. GitHub is a cloud platform that hosts Git repositories. It adds features like pull requests, issues, actions (CI/CD), and collaboration tools on top of Git's version control.

Concept Tested: GitHub

See: Chapter 22 - GitHub

9. What is the purpose of a .gitignore file?

  1. Lists contributors to ignore
  2. Specifies files Git should not track
  3. Ignores merge conflicts
  4. Disables Git features
Show Answer

The correct answer is B. .gitignore lists patterns for files and directories that Git should not track. Common entries include compiled files, node_modules, virtual environments, and sensitive data like API keys.

Concept Tested: Gitignore

See: Chapter 22 - Gitignore

10. What does git branch show?

  1. The tree structure of your project
  2. A list of branches and which one you're on
  3. The history of commits
  4. Remote repositories
Show Answer

The correct answer is B. git branch lists all local branches, with an asterisk (*) marking the current branch. Use git branch -a to also show remote branches. Branches allow parallel development.

Concept Tested: Git Branches

See: Chapter 22 - Git Branches