In some cases the sparse infector targets a specific program but the virus only executes every 10th time or 20th time that target program executes. Or a sparse infector may have a burst of activity and then lie dormant for a period of time. There are a number of variations on the theme, but the basic principle is the same: to … the frequency of attack and thus reduce the chances for detection.

Once a virus is on your system, it can do anything that any … program can do. That means it could potentially delete files, change system settings, or cause other harm

The basic concept requires a .........of technical skill.

If such a … is attached to an email and the recipient is using Outlook, then the … can execute. That execution can do any number of things, including scanning the address book, looking for addresses, sending out email, deleting email, and more.

What kind of cable has 100MHz/100Mbps speed, most common a few years ago and still widely used?

A … IDS just monitors suspicious activity and then logs it.

OphCrack depends on the attacker doing what?

What is an advantage of using Nessus? Use your favorite search engine to research Nessus to answer this question.