Which of the following XML based markup languages provides a protocol for business transactions on the Internet?

(a) BML.
(b) cXML.
(c) CML.
(d) SMIL.

(b) cXML.

Computer Science & Information Technology

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A hub and a switch operate at the same layer of the OSI model.

a. true b. false

Computer Science & Information Technology

A prewritten formula known as a (n) ________ looks at one or more values, performs an operation, and returns a value

A) data point B) operator C) function D) label

Computer Science & Information Technology