I can help with two.
Web Scripting Virus, A sneaky virus that targets popular websites. What this virus does is overwrite code on a website and insert links that can install malicious software on your device. Web scripting viruses can steal your cookies and use the information to post on your behalf on the infected website.
FILE INFECTOR, targeting executable files (.exe), file infector viruses slow down programs and damage system files when a user runs them.
This question depends on what the service level packages have to offer as an agreement. Does this question come with a list of what the service levels have to offer?
the opening tag for an HTML document
Microsoft powerpoint? i think thats what this is asking