As per the accompanying figure, ____ is an XML tag used in the structure of an RSS feed.

A delete query is an action query that removes an existing table in the same database

Indicate whether the statement is true or false

Which of the following statements about symmetric key cryptography is not true?

A. Symmetric key cryptography uses one shared key. B. Symmetric algorithms can provide confidentiality. C. Symmetric algorithms can provide nonrepudiation and authenticity. D. Symmetric key cryptography uses a single secret key.