Apply knowledge of network technologies and protocols, TCP/IP, operating systems, security protocols, system architecture and data flows, security categorization, requirements, configuration management processes, firewalls and configurations, intrusion detection and prevention systems, encryption techniques, Windows, Unix, Linux, databases, web servers, and other applications. Use eMASS to execute RMF v5 activities, document and update system status, identify and manage operational and technical security controls, assess implementation and risk, manage non-compliant and non-validated controls, manage POA&Ms from entry through closeout, produce reports, and track POA&M due dates.