Twisted-pair cables are made from fiber-optic glass.

To share files with other users of the same computer using Apple OS X, you would place them in the ________ folder

A) Community B) Common C) Shared D) Public

Which regular expression will match the rules for a C++ identifier? (Letters, digits, underscore, cannot start with a digit)

A. [a-zA-Z_]+[a-zA-Z_0-9]* B. [a-zA-Z_0-9]* C. \w+