Refer to the exhibit. What is occurring?

ARP spoofing involves manipulating ARP tables to redirect traffic locally, which would show incorrect MAC-to-IP mappings but not necessarily the overwhelming traffic volume of a DoS.

A man-in-the-middle attack involves intercepting and potentially altering communication between two parties, which would show traffic flowing through an unexpected intermediary, but not necessarily a flood designed to take down a service.

A brute-force attack involves repeatedly guessing credentials or keys, typically characterized by many failed login attempts over a specific port (like SSH or RDP), not a generalized network saturation or service disruption traffic pattern.

Assuming the exhibit showed characteristics such as an abnormally high volume of traffic, many incomplete connections, or malformed packets directed at a target system, a denial-of-service (DoS) attack aims to render a service or system unavailable to legitimate users by flooding it with excessive requests or data, consuming its resources, or exploiting vulnerabilities to cause instability.