Cisco DevNet Certifications - DevNet Specialist
1 Introduction to Cisco DevNet
2 Cisco DevNet Certifications Overview
1 DevNet Associate
2 DevNet Professional
3 DevNet Specialist
3 DevNet Specialist Certification Path
1 Core Competencies
2 Specialization Tracks
4 DevNet Specialist - Enterprise Automation and Programmability
1 Introduction to Enterprise Automation
2 Network Programmability Concepts
3 Cisco DNA Center APIs
4 Cisco IOS XE Programmability
5 Cisco ACI Programmability
6 Cisco SD-WAN Programmability
7 Cisco UCS Programmability
8 Automation Tools and Frameworks
9 Python for Network Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Network Automation
15 Puppet for Network Automation
16 Git and Version Control
17 CICD Pipelines for Network Automation
18 Troubleshooting Automation Issues
5 DevNet Specialist - Network Programmability and Automation
1 Introduction to Network Programmability
2 Network Automation Concepts
3 Cisco NX-API and NX-OS Programmability
4 Cisco IOS XR Programmability
5 Cisco Meraki Programmability
6 Cisco Catalyst 9000 Series Programmability
7 Cisco SD-Access Programmability
8 Network Automation Tools and Frameworks
9 Python for Network Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Network Automation
15 Puppet for Network Automation
16 Git and Version Control
17 CICD Pipelines for Network Automation
18 Troubleshooting Automation Issues
6 DevNet Specialist - Software Development and Design
1 Introduction to Software Development
2 Software Design Principles
3 Object-Oriented Programming (OOP)
4 Python Programming Language
5 RESTful API Design
6 Microservices Architecture
7 Containerization with Docker
8 Orchestration with Kubernetes
9 CICD Pipelines for Software Development
10 Test-Driven Development (TDD)
11 Version Control with Git
12 Agile Development Methodologies
13 DevOps Practices
14 Troubleshooting Software Development Issues
7 DevNet Specialist - Cloud Automation and Programmability
1 Introduction to Cloud Automation
2 Cloud Programmability Concepts
3 Cisco CloudCenter Suite
4 Cisco Intersight Programmability
5 Cisco Hybrid Cloud Manager
6 Cisco Application Policy Infrastructure Controller (APIC)
7 Cisco Container Platform
8 Cloud Automation Tools and Frameworks
9 Python for Cloud Engineers
10 RESTful APIs and HTTP Methods
11 JSON and XML Data Formats
12 YANG Data Modeling
13 NETCONF and RESTCONF
14 Ansible for Cloud Automation
15 Puppet for Cloud Automation
16 Git and Version Control
17 CICD Pipelines for Cloud Automation
18 Troubleshooting Cloud Automation Issues
8 DevNet Specialist - Collaboration Programmability
1 Introduction to Collaboration Programmability
2 Cisco Webex Programmability
3 Cisco Unified Communications Manager (CUCM) Programmability
4 Cisco Contact Center Enterprise (CCE) Programmability
5 Collaboration Programmability Tools and Frameworks
6 Python for Collaboration Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Collaboration Automation
12 Puppet for Collaboration Automation
13 Git and Version Control
14 CICD Pipelines for Collaboration Automation
15 Troubleshooting Collaboration Programmability Issues
9 DevNet Specialist - Security Programmability
1 Introduction to Security Programmability
2 Cisco Firepower Management Center (FMC) Programmability
3 Cisco Identity Services Engine (ISE) Programmability
4 Cisco Stealthwatch Programmability
5 Cisco Secure Network Analytics (SNA) Programmability
6 Security Programmability Tools and Frameworks
7 Python for Security Engineers
8 RESTful APIs and HTTP Methods
9 JSON and XML Data Formats
10 YANG Data Modeling
11 NETCONF and RESTCONF
12 Ansible for Security Automation
13 Puppet for Security Automation
14 Git and Version Control
15 CICD Pipelines for Security Automation
16 Troubleshooting Security Programmability Issues
10 DevNet Specialist - Data Center Programmability
1 Introduction to Data Center Programmability
2 Cisco Application Centric Infrastructure (ACI) Programmability
3 Cisco Nexus Programmability
4 Cisco UCS Programmability
5 Data Center Programmability Tools and Frameworks
6 Python for Data Center Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Data Center Automation
12 Puppet for Data Center Automation
13 Git and Version Control
14 CICD Pipelines for Data Center Automation
15 Troubleshooting Data Center Programmability Issues
11 DevNet Specialist - IoT Programmability
1 Introduction to IoT Programmability
2 Cisco IoT Field Network Director (FND) Programmability
3 Cisco Kinetic for Cities Programmability
4 Cisco IoT Operations Dashboard Programmability
5 IoT Programmability Tools and Frameworks
6 Python for IoT Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for IoT Automation
12 Puppet for IoT Automation
13 Git and Version Control
14 CICD Pipelines for IoT Automation
15 Troubleshooting IoT Programmability Issues
12 DevNet Specialist - Service Provider Programmability
1 Introduction to Service Provider Programmability
2 Cisco Network Services Orchestrator (NSO) Programmability
3 Cisco IOS XR Programmability
4 Cisco ASR 9000 Series Programmability
5 Service Provider Programmability Tools and Frameworks
6 Python for Service Provider Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Service Provider Automation
12 Puppet for Service Provider Automation
13 Git and Version Control
14 CICD Pipelines for Service Provider Automation
15 Troubleshooting Service Provider Programmability Issues
13 DevNet Specialist - Wireless Programmability
1 Introduction to Wireless Programmability
2 Cisco Wireless LAN Controller (WLC) Programmability
3 Cisco DNA Center Wireless Programmability
4 Cisco Mobility Services Engine (MSE) Programmability
5 Wireless Programmability Tools and Frameworks
6 Python for Wireless Engineers
7 RESTful APIs and HTTP Methods
8 JSON and XML Data Formats
9 YANG Data Modeling
10 NETCONF and RESTCONF
11 Ansible for Wireless Automation
12 Puppet for Wireless Automation
13 Git and Version Control
14 CICD Pipelines for Wireless Automation
15 Troubleshooting Wireless Programmability Issues
14 DevNet Specialist - DevOps and Automation
1 Introduction to DevOps and Automation
2 Continuous Integration (CI)
3 Continuous Deployment (CD)
4 Infrastructure as Code (IaC)
5 Configuration Management Tools
6 Monitoring and Logging
7 Containerization and Orchestration
8 CICD Pipelines
9 Version Control with Git
10 Agile Development Methodologies
11 DevOps Practices
12 Troubleshooting DevOps Issues
15 DevNet Specialist - Automation and Programmability Best Practices
1 Best Practices for Network Automation
2 Best Practices for Software Development
3 Best Practices for Cloud Automation
4 Best Practices for Security Programmability
5 Best Practices for Data Center Programmability
6 Best Practices for IoT Programmability
7 Best Practices for Service Provider Programmability
8 Best Practices for Wireless Programmability
9 Best Practices for Collaboration Programmability
10 Best Practices for DevOps and Automation
16 DevNet Specialist - Certification Exam Preparation
1 Exam Objectives and Domains
2 Study Resources and Materials
3 Practice Exams and Simulations
4 Exam Registration and Scheduling
5 Test-Taking Strategies
6 Post-Exam Actions and Certification Maintenance
16 Git and Version Control Explained

16 Git and Version Control Explained

1. Version Control System (VCS)

A Version Control System (VCS) is a tool that tracks changes to files over time. It allows multiple users to collaborate on projects and revert to previous versions if needed.

Example: Think of a VCS as a time machine for your files. Just as a time machine lets you travel back in time, a VCS lets you go back to previous versions of your files.

2. Git

Git is a distributed version control system that allows developers to track changes, manage branches, and collaborate on code. It is widely used in software development.

Example: Consider Git as a digital notebook where each page (commit) represents a snapshot of your project at a specific time.

3. Repository

A repository (repo) is a storage location where all the files, history, and metadata of a project are kept. It can be local (on your machine) or remote (on a server).

Example: Think of a repository as a digital filing cabinet. Just as a filing cabinet stores documents, a repository stores your project files and their history.

4. Commit

A commit is a snapshot of changes made to the files in a repository. Each commit has a unique identifier and a message describing the changes.

Example: Consider a commit as a bookmark in a book. Just as a bookmark marks a specific page, a commit marks a specific state of your project.

5. Branch

A branch is a parallel version of a repository. It allows developers to work on new features or fixes without affecting the main codebase.

Example: Think of a branch as a separate lane on a highway. Just as a lane allows traffic to flow independently, a branch allows development to proceed independently.

6. Merge

Merging is the process of combining changes from one branch into another. It is used to integrate new features or fixes into the main codebase.

Example: Consider merging as combining two streams into one river. Just as two streams merge to form a river, two branches merge to form a unified codebase.

7. Pull Request (PR)

A Pull Request (PR) is a mechanism for proposing changes to a repository. It allows other developers to review and discuss the changes before they are merged.

Example: Think of a PR as a request to add your chapter to a book. Just as an author requests to add a chapter, a developer requests to add changes to the codebase.

8. Clone

Cloning is the process of creating a copy of a repository on your local machine. It includes all the files, history, and branches of the original repository.

Example: Consider cloning as photocopying a book. Just as a photocopy includes all the pages, a clone includes all the files and history of the original repository.

9. Fork

Forking is the process of creating a copy of a repository under your own account. It allows you to freely experiment with changes without affecting the original project.

Example: Think of forking as creating a new book based on an existing one. Just as a new book can diverge from the original, a fork can diverge from the original repository.

10. Remote

A remote is a version of a repository hosted on a server. It allows multiple developers to collaborate and share changes.

Example: Consider a remote as a shared library. Just as a library allows multiple people to access books, a remote allows multiple developers to access the repository.

11. Push

Pushing is the process of uploading local commits to a remote repository. It updates the remote repository with your changes.

Example: Think of pushing as mailing a letter. Just as a letter is sent from your home to a distant location, changes are sent from your local machine to a remote repository.

12. Pull

Pulling is the process of downloading changes from a remote repository to your local repository. It updates your local copy with the latest changes.

Example: Consider pulling as receiving a package. Just as a package is delivered to your home, changes are delivered to your local repository.

13. Tag

A tag is a reference to a specific point in the repository's history. It is often used to mark release points (e.g., v1.0, v2.0).

Example: Think of a tag as a milestone marker on a road. Just as a marker indicates a significant point, a tag indicates a significant point in the repository's history.

14. Stash

Stashing is the process of temporarily saving changes that are not ready to be committed. It allows you to switch branches without committing incomplete work.

Example: Consider stashing as putting away unfinished work. Just as you can put away a half-finished puzzle, you can stash incomplete changes in Git.

15. Rebase

Rebasing is the process of moving or combining a sequence of commits to a new base commit. It is often used to maintain a linear project history.

Example: Think of rebasing as rewriting history. Just as you can rewrite a story, you can rewrite the commit history in Git.

16. Conflict Resolution

Conflict resolution is the process of resolving differences between conflicting changes in a file. It occurs when Git cannot automatically merge changes.

Example: Consider conflict resolution as resolving a disagreement. Just as you resolve a disagreement between friends, you resolve conflicts between different changes in Git.