161. An intentionally disruptive program that spreads from program to program or from disk to disk is known as a_____________?
A. Trojan horse.
B. Virus.
C. Time bomb.
D. Time-related bomb sequence
162. In 1999, the Melissa virus was a widely publicised:____________?
A. E-mail virus.
B. Macro virus.
C. Trojan horse.
D. Time bomb.
163. What type of virus uses computer hosts to reproduce itself?
A. Time bomb
B. Worm
C. Melissa virus
D. Macro virus
164. The thing that eventually terminates a worm virus is a lack of:
A. Memory or disk space.
B. Time.
C. CD drives space.
D. CD-RW.
165. When a logic bomb is activated by a time-related event, it is known as a____________?
A. Time-related bomb sequence.
B. Virus.
C. Time bomb.
D. Trojan horse.
166. What is the name of an application program that gathers user information and sends it to someone through the Internet?
A. A virus
B. Spybot
C. Logic bomb
D. Security patch
167. ____________is the measurement of things such as fingerprints and retinal scans used for security access?
A. Biometrics
B. Bio measurement
C. Computer security
D. Smart weapon machinery
168. What is the most common tool used to restrict access to a computer system?
A. User logins
B. Passwords
C. Computer keys
D. Access-control software
169. Hardware or software designed to guard against unauthorized access to a computer network is known as a(n)___________?
A. Hacker-proof program
B. Firewall
C. Hacker-resistant server
D. Encryption safe wall
170. The scrambling of code is known as___________?
A. Encryption
B. a firewall
C. Scrambling
D. Password proofing
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