some questions

[lydia westland]

Dear ranchers,
In the real exam, if the question has multiple answers, does it indicate how many correct answers? e.g. like "pls. choose 2 correct answers"
<:name>Mickey</:name>
is ":/name" a valid element name?
HTML is not a pure markup language as it cannot completely describe the content.
Is this statement correct?
Thank you very much.

[Danl Thompson]

Yes, it does tell you how many to choose out of how many possible answers. (a long time ago they didn't and you had to guess!)
Yes the <:name> is a valid tag, because tag names can start with any letter, colon or underscore. But :/name is not valid, because element names cannot contain a slash or backslash.
And I don't get the HTML question.
Best regards
Dan'l