Tel me what ia IIS server and what is App Pool

Question

Accepted Answer

IIS server is a web server software developed by Microsoft. App Pool is a feature that isolates web applications for better security and performance.

IIS stands for Internet Information Services and is used to host and manage web applications on Windows servers.
It supports various protocols like HTTP, HTTPS, FTP, SMTP, etc.
App Pool is a feature that isolates web applications from each other for better security and performance.
Each App Pool runs as a separate process and can be configured with its own settings like .NET version, identity, etc.
If one App Pool crashes, it does not affect the other App Pools running on the same server.