Survey on the Most Used HTTP Servers Today

In order to understand the different viewpoints held in the community regarding HTTP servers, I appreciate your cooperation and the time required to answer the following questions, aiming for the answers to be as objective as possible.
Questionnaire results are publicly available

Name

Age? ✪

Occupation ✪

When acquiring new software, what is the first thing you consider? ✪

Which servers from the following list do you know or have worked with? ✪

IF your answer is None, please move to the last question

What is an HTTP server?

Rank the following items according to what you look for in a server from 1 to 5, with 5 being the most important.

12345
Multi-platform
Popular
Open source
Secure
Stable

Have you experienced any type of failure or error in any version of the Apache server?

Did you encounter any problems or difficulties when installing the Apache server?

On which operating system do you have the Apache server installed and running?

The described operating systems cover all their versions

What version of the Apache server do you currently have installed? ✪

The use you give to the Apache server is

Do you know about the Apache Software Foundation?

Are you aware of the incompatibility of the license offered by Apache?

How would you prefer to acquire a tutorial or course on the Apache server? ✪