What is a common step for incident handlers during the incident response preparation phase?

During the incident response preparation phase, it is crucial for incident handlers to engage in various activities that set the foundation for an effective response to security incidents. One of the critical steps is defining an incident response team. This team is responsible for managing and responding to incidents, and having a clearly defined team with designated roles ensures that everyone knows their responsibilities during an incident.

In addition to defining the incident response team, conducting training drills is essential. These drills simulate potential incidents and provide team members with the opportunity to practice their response plans. This preparation helps to identify any weaknesses in the response process and enhances overall readiness.

Testing backup systems is also an important part of preparation. Ensuring that backup systems are reliable means that important data can be restored quickly in the event of a data loss incident. It reduces downtime and helps the organization to recover more efficiently.

Since all these activities—defining a response team, conducting drills, and testing backups—are integral to the preparation phase, the comprehensive nature of these steps combined makes "all of the above" the correct answer. Each component plays a vital role in enhancing the organization’s incident response capabilities.