Sam is working as s pen-tester in an organization in Houston. He performs penetration testing on IDS in order to find the different ways an attacker uses to evade the IDS. Sam sends a large amount of

A Denial-of-Service attack is aimed at making a target service unavailable to legitimate users, not at concealing traffic from an IDS through alert flooding.

By deliberately generating a high volume of packets that trigger IDS alerts, Sam overwhelms security analysts and automated systems with false alarms. This alert fatigue or noise flood effectively masks the real attack traffic, as the genuine malicious packets are hidden among hundreds or thousands of false positive events that analysts cannot realistically triage in real time.

An insertion attack exploits a discrepancy between packets the IDS accepts and packets the end host accepts, confusing the IDS about the actual byte stream rather than burying it in alerts.

Obfuscation involves encoding, encrypting, or transforming malicious payloads so the IDS signature engine cannot recognize them, which is distinct from flooding the IDS with alert-generating traffic.