Which of the following describe a system backup? (Choose all that apply.) a. The only way to recover from data loss b. Possibly your best insurance c. A potentially serious vulnerability d. Nearly...

Which of the following describe a system backup? (Choose all that apply.) a. The only way to recover from data loss b. Possibly your best insurance c. A potentially serious vulnerability d. Nearly failure-proof Which common operating system threat is nearly always due to sloppy programming practices? a. Impersonation b. Malicious code c. Back doors d. Bugs Which of the following are valid uses for keystroke monitoring? (Choose all that apply.) a. Surveillance of a user suspected of inappropriate activity b. Testing and quality assurance c. Information gathering d. Routine activity monitoring