CompTIA A+ 220-802

Answer: A - Worms replicate without the need for a host file. Worms are designed to propagate by exploiting OS weaknesses.

Key Takeaway: A computer worm is a self-replicating computer program. While viruses almost always corrupt or devour files on a targeted computer, worms may be designed solely to propagate. However, worms usually cause at least some harm to the network, if only by consuming bandwidth.