Final answer:
Jupyter Notebook presents as an app within a web browser, not a desktop app, Linux session, or database interface. It supports interactive documents that combine code with rich text elements, geared towards data science and education.
Step-by-step explanation:
The user interface for Jupyter looks like an app in a web browser. When a user runs Jupyter Notebook, they are presented with a web-based interface that allows them to create, open, and manage notebook documents. A Jupyter Notebook document is an interactive document that contains both computer code (e.g., python) and rich text elements (paragraphs, equations, figures, links, etc.). This interface is not a common desktop app, Linux SSH session, or a database interface.
Jupyter's interface provides a variety of tools and functionalities, such as running code cells, displaying output, and converting notebooks to different formats. It is commonly used for data science and machine learning tasks, as well as for educational purposes to combine live code with narrative text.