____ is the ability of a system to gracefully recover from hardware or software failure.

What is included in an MLA style parenthetical reference (and in which order)?

A) Year published, last name of the author or authors, and the page number in the referenced source B) Last name of the author or authors and the year published of the referenced source C) Last name of the author or authors, the page number in the referenced source, and the publication date D) Last name of the author or authors and the page number in the referenced source

Which of the following best describes X.509?

A. Public key infrastructure B. Standard used for digital certificates C. Database of revoked certificate D. Database of existing hash values