____________________ attacks typically function by overwhelming or flooding a targeted machine with requests until normal traffic is unable to be processed, resulting in denial-of-service to additional users.

(A) Spoofing
(B) Phishing
(C) DoS
(D) SQL injection

DoS is the correct answer.

A denial-of service (DoS) attack is a type of cyber attack in which a malicious actor aims to render a computer or other device unavailable to its intended users by interrupting the device’s normal functioning.

DoS attacks typically function by overwhelming or flooding a targeted machine with requests until normal traffic is unable to be processed, resulting in denial-of-service to additional users. A DoS attack is characterized by using a single computer to launch the attack.