A social network that requires its members to be invited by the site organizer or a pre-existing member is an example of a(n)

a. hybrid community.
b. open community.
c. private community.
d. closed community.

D

Computer Science & Information Technology

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For different users to share a vocabulary effectively, _____ must be developed that specifically control what code and content a document from that vocabulary might contain.

A. guidelines B. rules C. goals D. objectives

Computer Science & Information Technology

?The

tag is a ____ tag.

A. ?level-one heading B. ?closing head C. ?text height D. ?half-size

Computer Science & Information Technology