A user is sending a large number of protocol packets to a network in order to saturate its resources and to disrupt connections to prevent communications between services. Which type of attack is…

A vulnerability attack exploits a specific flaw in software or hardware - such as a buffer overflow or unpatched CVE - to execute malicious code or gain unauthorized access, not to flood resources with volume traffic.

A DoS attack works by overwhelming a target's available bandwidth, processing capacity, or connection tables with a high volume of packets or requests, effectively saturating resources so that legitimate users and services are denied access. The defining characteristic is resource exhaustion intended to disrupt availability rather than to steal data or gain unauthorized access.

An impersonation attack involves an adversary masquerading as a trusted user, device, or service to gain unauthorized access or extract sensitive information, which is fundamentally different from saturating network resources with packets.

Social engineering attacks use psychological manipulation to deceive humans into revealing credentials or performing insecure actions, and do not involve sending large volumes of protocol packets to a network.