The term “Full Stack” generally refers to the development of both the front end and back end portions of a web application. This involves everything from the user interface to the server, database, and networking. Here is a general breakdown of what a Full Stack Developer should know:

Front-End Development:

1. HTML: Markup language for creating web pages
2. CSS: Styling the HTML elements
3. JavaScript: Making the site interactive
4. Front-end Frameworks: Angular, React, Vue, etc.
5. Version Control/Git: Code versioning and collaboration

Back-End Development:

1. Programming Languages: Python, Java, Node.js, Ruby, etc.
2. Server Management: Understanding of server-side scripting
3. Database Management: SQL, MongoDB, Firebase, etc.
4. APIs: RESTful services and GraphQL
5. Authentication and Authorization: OAuth, JWT, etc.

DevOps:

1. Deployment: Docker, AWS, Heroku, etc.
2. CI/CD: Jenkins, GitLab CI, etc.
3. Web Servers: Apache, Nginx, etc.

Soft Skills:

1. Problem-Solving: Strong debugging and troubleshooting skills
2. Communication: Ability to work in teams and communicate well
3. Up-to-Date: Keeping up with the latest trends and updates in technologies

Other Important Skills:

1. Testing: Unit testing, Integration testing, End-to-End testing
2. Mobile-Responsive Design
3. Web Accessibility