During finals week, students rent a botnet and flood the school-grade portal until it is unreachable. How should the analyst describe the attack?

A rented botnet flooding a school portal is a botnet-driven DDoS whose motivation is disruption. Exfiltration, supply-chain delivery, and account takeover require outbound data theft, a compromised publisher, or control of an identity, none of which this volumetric outage demonstrates. Name the attack from the botnet and the denial effect.