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.

It is a fairly typical virus in that it spreads primarily through email, but it also uses file sharing utilities to copy itself. It copies itself to various directories and shared folders. In one interesting twist, it attempts to copy itself to C:\WINDOWS\FVProtect.exe. The name would make many people (including otherwise technically savvy people) think this program was actually part of some antivirus utility. It also copies itself to C:\WINDOWS\userconfig9x.dll. Again, it would appear to be a system file, thus making people less likely to delete it. What is it?

It is merely the process of determining if the credentials given by a user or another system (such as a username and password) are authorized to access the network resource in question. What is it?

Which of the following was one of the three universities involved in the original distributed network setup by a government agency?

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

You are going to use –0 so that the ping ...........does not wait at all.

The simplest device for connecting computers is called what?

Computers are no different than any other machine; they, ........, have limits

These attacks are rather advanced and involve an attacker attempting to take over a session

According to a recent survey of 223 computer professionals prepared by the Computer Security Institute, which of the following was cited as an issue by more of the respondents?

What is war-driving?