_____ is an assault on a service from a single source that floods it with so many requests that it becomes overwhelmed and is either stopped…

_____ is an assault on a service from a single source that floods it with so many requests that it becomes overwhelmed and is either stopped completely or operates at a significantly reduced rate.

1. a) Denial-of-service (DoS) attack
2. b) Spoofing attack
3. c) Cross-site scripting (XSS) attack
4. d) Buffer overflow attack