What Statement Regarding Denial-Of-Service (DoS) Attacks Is Accurate

Multiple Choice

What statement regarding denial-of-service (DoS) attacks is accurate?

A) A denial-of-service attack occurs when a MAC address is impersonated on the network.
B) A denial-of-service attack prevents legitimate users from accessing normal network resources.
C) A denial-of-service attack is generally a result of a disgruntled employee.
D) A denial-of-service attack is no longer a major concern due to the increased throughput available on most networks.