Why might Demilitarized Zone (DMZ) systems, despite their extra risk factor, not be prioritized over mission critical systems in disaster recovery planning?

The choice that states that DMZ systems are not essential for keeping operations running accurately highlights an important aspect of disaster recovery planning. Mission-critical systems are those that are vital for the primary operations of a business or organization. These systems are often directly tied to the productivity and functionality of the organization, meaning that their failure can have immediate and severe consequences.

In contrast, systems housed in a DMZ, which typically serve as a buffer zone between an organization's internal network and external networks, play a supporting role. Although they are important for managing external access and enhancing security, they are generally not fundamental to the core operations. In disaster recovery planning, resources and efforts are prioritized toward systems that, when compromised or non-operational, will have a direct impact on the organization’s ability to function and meet its critical objectives. Thus, while DMZ systems may increase the organization's security posture, they do not hold the same level of priority in planning for disaster recovery compared to mission-critical systems.

This understanding underscores the necessity to allocate recovery efforts based on the essentiality of systems to overall operations, ensuring that an organization can continue functioning effectively even in the face of disasters.