Which of the following is NOT a basic level of Command configuration?

The correct answer is "Defensive | Offensive" because it refers to tactical approaches or modes of firefighting rather than a basic level of command configuration. In incident command systems for fire service operations, the basic levels of command are typically categorized as strategic, tactical, and task.

Strategic command focuses on the overall objectives and long-term planning for managing the incident. Tactical command involves the specific operations and immediate actions that are necessary to implement the strategies established at the strategic level. Task command is the most granular level and deals with the individual tasks or resources assigned to accomplish the tactical objectives.

The terms "defensive" and "offensive" describe the type of firefighting tactics employed during an incident, which inform how resources are deployed and actions are taken based on the situation at hand. However, they do not represent a distinct level of command configuration within the command structure used in emergency management. Therefore, identifying "Defensive | Offensive" as the option that does not fit the criteria of a basic level of command configuration is accurate.