Which of these choices correctly describe denial-of-service (DoS) attacks? (Choose THREE.)
A.
DoS attacks do not require attackers to have any privileges on a target system.
B.
DoS attacks are nearly impossible to stop, once they begin.
C.
DoS attacks free the target system of excessive overhead.
D.
DoS ties up a system with so many requests, system resources are consumed, and performance degrades.
E.
DoS attacks cause the attacked system to accept legitimate access requests.