What Defines The Date When Information Becomes Invalid #584
What defines the date when information becomes invalid?
This multiple choice question (MCQ) is related to the book/course
gs gs105 CSS (Cascading Style Sheets).
It can also be found in
gs gs105 CSS CGI Programming & Miscellaneous - CSS Transition & Perl CGI Programming - Quiz No.1.
What defines the date when information becomes invalid?
last-modified: string
expires: date string
last-modified: string
content-type: string
