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.

Question

Quizplus · Accepted Answer

A denial-of-service attack is a malicious attempt to make a network resource such as a website or application unavailable to users by flooding it with traffic or sending it requests that it cannot handle. It does this by overwhelming the targeted resource with traffic, making it unavailable to legitimate users.

Answer: None of the above 
 A denial-of-service attack is not a result of MAC address impersonation or a disgruntled employee, and it remains a major concern for networks despite increased throughput.

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