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
14 Git and Version Control Explained

14 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 manage different versions of the same files.

Example: Think of a VCS as a time machine for your files. Just as a time machine allows you to travel back in time, a VCS allows you to see and revert 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 for its efficiency and flexibility.

Example: Consider Git as a collaborative workspace. Just as a workspace allows multiple people to work on different tasks, Git allows multiple developers to work on different features of a project.

3. Repository

A repository (repo) is a directory where Git stores all the files, history, and metadata of a project. 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 all the files and history of a project.

4. Commit

A commit is a snapshot of the 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 save point in a video game. Just as a save point allows you to resume from a specific point, a commit allows you to revert to a specific version of your files.

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. Branches can be merged back into the main branch when the work is complete.

Example: Think of a branch as a side story in a book. Just as a side story allows you to explore new ideas without changing the main plot, a branch allows you to work on new features without affecting the main codebase.

6. Merge

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

Example: Consider merging as combining two different drafts of a document. Just as you combine the best parts of each draft, you combine the changes from different branches into the main codebase.

7. Pull Request

A pull request (PR) is a request to merge changes from one branch into another. It allows other developers to review the changes before they are merged.

Example: Think of a pull request as a proposal for a new feature. Just as a proposal is reviewed before it is approved, a pull request is reviewed before the changes are merged.

8. Clone

Cloning is the process of creating a local copy of a remote repository. It allows developers to work on the project on their own machines.

Example: Consider cloning as making a photocopy of a document. Just as a photocopy allows you to work on the document independently, cloning allows you to work on the project independently.

9. Fork

Forking is the process of creating a copy of a repository under a different account. It allows developers to experiment with changes without affecting the original project.

Example: Think of forking as creating a parallel universe. Just as a parallel universe allows you to explore different possibilities, forking allows you to experiment with different changes.

10. Push

Pushing is the process of uploading local commits to a remote repository. It allows other developers to access the changes.

Example: Consider pushing as uploading a document to a shared drive. Just as uploading allows others to access the document, pushing allows others to access the changes.

11. Pull

Pulling is the process of downloading changes from a remote repository to a local repository. It allows developers to keep their local copy up-to-date.

Example: Think of pulling as downloading updates for a software. Just as downloading updates ensures your software is up-to-date, pulling ensures your local copy is up-to-date.

12. Tag

A tag is a reference to a specific point in the repository's history, often used to mark releases or important milestones.

Example: Consider a tag as a bookmark in a book. Just as a bookmark marks a specific page, a tag marks a specific point in the repository's history.

13. Remote

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

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

14. Conflict

A conflict occurs when Git is unable to automatically merge changes from different branches. It requires manual intervention to resolve.

Example: Consider a conflict as a disagreement between two people. Just as a disagreement requires discussion to resolve, a conflict requires manual intervention to resolve.