___________ is a term used to describe encryption systems that simultaneously protect confidentiality and authenticity of communications.

Audio signals such as the announcement “You have mail,” can redirect a user’s attentions away from a current task. In the context of computer use, name other situations where sound successfully attracts attention without overly aggravating the user.

What will be an ideal response?

IP ______ occurs when an intruder computer fools a network into believing its IP address is associated with a trusted source.

Fill in the blank(s) with the appropriate word(s).