Can somebody clear these questions about infopath with sharepoint?

Can somebody clear these questions about infopath with sharepoint?

I faced few more questions while interview. it was totally new for me. can
you please help me out to clear more idea :
- What is infopath ( I can use MSDN)
- Can i Design InfoPath form in Sharepoint Designer 2010
- How to deploy Infopath form in Sharepoint site. (I can follow MSDN here)
- What authority needs to deploy Infopath in sp?
- What is Group and fields in infopath?
- Can I write custom event in InfoPath? What is VSTA?
- How add rule in Infopath form
- How to validate Infopath fields?
- Can I show InfoPath in Webpart ?
- Where infopath will deploy?
- Can I show Infopath fields in List?
- Can I configure workflow with Infopath in SP?
- What are advantages and disadvantages of using Infopath? ( I can google it)
- How IIS works against the Infopath request ?
- How Sharepoint request handle by IIS?