When a database is opened in compatibility mode, all features are enabled.

Which of the following is the best way to remove Back Orifice from an infected machine?

a. Finding the Back Orifice file and deleting it. b. Removing it from the Registry. c. Removing it from the Startup folder. d. You cannot manually remove Back Orifice from a system.

Answer the following statements true (T) or false (F)

1. The du command displays how many times a disk is used. 2. The df command shows the disk failure messages. 3. You can create your own spelling dictionary file. 4. The at command is used to run programs at a specified time. 5. The passwd file contains most of the information system needs to know about a user.