Alice sends a message to Bob in a manner such that Bob is the only person who can tell what the real message is. Which security concept is this an example of

What is the primary difference between the header section of a document and the body? a. the body is displayed on the webpage and the header is not. b. the header is displayed on the webpage and the body is not. c. the tag for the body is self-closing, but the tags for the headers must be closed. d. the tag for the header is self closing, but the tag for the body must be closed.

Ais a built in formula in spread spread a is any math process such as addition or subtraction. options are function and operation

What function key is used to enable the spelling and grammar function