中等ICT-SECU-002
A worm is different from a virus because a worm:
A. Can only exist inside a document that a user chooses to open.
B. Is a lossless image format.
C. Is freeware.
D. Spreads across a network by itself.✓ 答案
解說
A worm does not need to attach to a host file. That is the contrast with a virus.