Which password cracking technique uses every possible combination of character sets?

On an Active Directory network using NTLM authentication, where on the domain controllers are the passwords stored?

When investigating a wireless attack, what information can be obtained from the DHCP logs?

An employee is attempting to wipe out data stored on a couple of compact discs (CDs) and digital video discs (DVDs) by using a large magnet. You inform him that this method will not be effective in wiping out the data because CDs and DVDs are ______________ media used to store large amounts of data and are not affected by the magnet.

A Linux system is undergoing investigation. In which directory should the investigators look for its current state data if the system is in powered on state?