PagerDuty's incident response process is primarily based on which system?

The correct answer is based on the understanding that PagerDuty's incident response process is influenced by established frameworks that prioritize structured and efficient management of incidents. The Incident Command System (ICS), which is part of the NIMS, is a widely adopted system in emergency response and provides a framework for managing incident operations effectively.

By utilizing the ICS model, PagerDuty can facilitate clear communication, defined roles, and scalable operations during incidents, allowing teams to respond quickly and effectively. This system enhances coordination among various responders and organizations, which is crucial in managing incidents that can vary greatly in size and complexity.

Although other options suggest valid systems for managing various types of incidents, they do not align as closely with the structured, multi-disciplinary approach that ICS provides, which is fundamental for broad-spectrum incident response practices such as those utilized by PagerDuty.