This command is not available on Windows, but on a computer running Linux or Mac OS X, this command will let you diagnose DNS problems.

A(n) ________ is a graphic inserted into a workbook background

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

Which of the following is a password cracking tool that uses rainbow tables to crack the passwords?

a. ISpyNow b. PWDump c. Ophcrack d. Kerberos