Final answer:
Step five of the RMF process is the implementation of selected security controls, including deployment, configuration, and testing.
Step-by-step explanation:
Step five of the RMF (Risk Management Framework) process is the implementation of the selected security controls. This step involves putting into action the security controls that have been chosen to mitigate the identified risks. It includes the deployment, configuration, and integration of the controls, as well as testing and verifying their effectiveness.
For example, if a risk assessment has identified the need for a firewall to protect the network from unauthorized access, step five would involve installing and configuring the firewall according to the organization's requirements. The effectiveness of the firewall would then be tested to ensure it is providing the desired level of security.