In the context of security operations, functions typically include identifying potential threats, mitigating or addressing those threats, and investigating incidents to understand their root cause and impact. Identifying threats is crucial for proactive security management. Mitigating involves steps to reduce the impact or likelihood of security incidents. Investigating involves detailed examination of incidents for learning and improvement. While reporting is important for communication, it is not a core operation function focused directly on dealing with threats or incidents themselves. Hence, the three terms that are functions of security operations are Identify, Mitigate, and Investigate.