WGU D197 -IT D193- Version Control complete solution
PART 1: Core Version Control Concepts & Definitions
What is Version Control?
Version control is a system that records changes to files over time so that specific
versions can be recalled later. It allows teams to collaborate effectively, track
modifications, and revert to previous states if needed.
Benefits of version control:
• Tracks changes to source code and resources
• Enables teams to work together on projects
• Maintains current versions and backups of past versions
• Manages conflicts when multiple users modify the same file
• Can be used for any file type (text, code, images, papers)
Distributed vs. Centralized Version Control
Feature Distributed (Git) Centralized (SVN)
Repository Full copy on every developer's
Single central server
location machine
Offline work Full history available offline Limited offline capability
Central server is single point of
Backup Every clone is a full backup
failure
Speed Fast operations locally Network-dependent
, Answer: A distributed version control system is one where each developer has a
full copy of the repository locally.
Why is Git Powerful?
Git is fast, can handle large code bases, and is distributed. Unlike older systems
like CVS or Subversion (SVN), Git provides:
• Local branching and merging
• Full history on each developer's machine
• Strong integrity with SHA-1 checksums
• Efficient handling of large projects
PART 2: Git Commands – Quick Reference
Command Purpose
git init Initialize a new Git repository
git clone [URL] Copy a remote repository to your local machine
git status Display the state of the working directory and staging area
git add [file] Add file(s) to the staging area
git add . Add all modified files to the staging area
git commit -m "message" Create a commit with a message
git diff [file] Show changes between working directory and staging area
PART 1: Core Version Control Concepts & Definitions
What is Version Control?
Version control is a system that records changes to files over time so that specific
versions can be recalled later. It allows teams to collaborate effectively, track
modifications, and revert to previous states if needed.
Benefits of version control:
• Tracks changes to source code and resources
• Enables teams to work together on projects
• Maintains current versions and backups of past versions
• Manages conflicts when multiple users modify the same file
• Can be used for any file type (text, code, images, papers)
Distributed vs. Centralized Version Control
Feature Distributed (Git) Centralized (SVN)
Repository Full copy on every developer's
Single central server
location machine
Offline work Full history available offline Limited offline capability
Central server is single point of
Backup Every clone is a full backup
failure
Speed Fast operations locally Network-dependent
, Answer: A distributed version control system is one where each developer has a
full copy of the repository locally.
Why is Git Powerful?
Git is fast, can handle large code bases, and is distributed. Unlike older systems
like CVS or Subversion (SVN), Git provides:
• Local branching and merging
• Full history on each developer's machine
• Strong integrity with SHA-1 checksums
• Efficient handling of large projects
PART 2: Git Commands – Quick Reference
Command Purpose
git init Initialize a new Git repository
git clone [URL] Copy a remote repository to your local machine
git status Display the state of the working directory and staging area
git add [file] Add file(s) to the staging area
git add . Add all modified files to the staging area
git commit -m "message" Create a commit with a message
git diff [file] Show changes between working directory and staging area
