中等ICT-SECU-003
A Trojan horse:
A. Copies itself across a LAN without anyone installing it.
B. Is a star topology.
C. Appears to be useful software and does not replicate by itself.✓ 答案
D. Is a range check.
解說
A Trojan relies on someone installing a program that looks legitimate. It is not a worm and not a network layout.