Perform Maintenance

You already perform maintenance. The work here is showing it.

Patching operating systems and applications, fixing what breaks, replacing failing hardware, and updating firmware are all system maintenance. Objective [a] asks whether it happens. Patch reports from your management tooling and a trail of closed tickets are the evidence, so keep both where you can produce them.

Write down a cadence and follow it.

Write a short statement in the maintenance policy: endpoints and servers receive updates monthly, network devices and firmware follow the vendor's releases, and defects are fixed as tickets arrive. That statement turns scattered activity into a program an assessor can check against reality. Manufacturer recommendations are a defensible default where you have no reason to differ.

In a cloud environment, the provider maintains the service and you maintain everything that touches it.

Microsoft maintains the infrastructure of GCC High, its government cloud, and that split belongs in your responsibility documentation. Your side is the endpoints, the network equipment, and their firmware. Provider maintenance never patches your laptop.

Maintenance covers more than computers.

The requirement's discussion pulls in components not directly associated with information processing: scanners, copiers, and printers. Firmware on a firewall or a copier is exactly the kind of thing that goes untouched for years, so put those devices on the same cadence.