What is Double-colon syntax?

What will be an ideal response?

Double-colon syntax: Change in CSS3 intended to distinguish the four pseudo-elements from pseudo-classes.

Computer Science & Information Technology

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An XML ________ describes the structure of an XML document and is used to validate and format XML data

A) data file B) language C) schema D) code

Computer Science & Information Technology

Which output redirection operator is used to make one command's output the standard input of another command?

A. ^ (carrot) B. | (pipe) C. < (less than) D. > (greater than)

Computer Science & Information Technology