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.

This attack is based on passing structured query language commands to a web application and getting the website to execute them. What is this?

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

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

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

What is SQL?

For many years, one needed significant programming skills in order to create a virus. However, in recent years there have been a number of tools developed that create viruses. These tools allow …. This is one reason viruses are becoming so prevalent.

The TCP protocol operates at what layer of the OSI model?