Why is there a need to distinguish between a fault, a failure, and an error? surely the use of the umbrella term "defect" simplifies matters?

In vista and windows 7, the appearance and personalization option allows you to change the

Anewly established internet company with 40 employees needs your advice. they are looking for a collaboration tool and have narrowed their choices to gotomeeting, webex, and my web conferences. after reading the information presented in this chapter and other sources, prepare a two- page document ( double spaced) that includes two advantages and two disadvantages of each tool. which one is your final recommendation? why did you choose that tool over the other two?

What is the disadvantage of a mesh topology?