Which task is part of the communications officer's responsibilities?

The correct answer is maintaining exterior communication systems. The primary role of a communications officer involves overseeing and ensuring the proper operation of all communication equipment and systems used for external communication. This responsibility is crucial for maintaining effective contact with other ships, aircraft, ground forces, and command centers. Properly functioning communication systems are vital for mission success, safety, and situational awareness.

In contrast, initiating ship's navigation is typically the responsibility of navigation officers who focus specifically on the safe and efficient navigation of the ship. Executing tactical orders is primarily associated with tactical officers or watch officers, who are responsible for implementing strategies during operations. Assisting with cargo loading falls under the logistics and supply chain operations, where personnel ensure that the ship is properly loaded with necessary supplies and equipment for missions. Each of these roles is important, but they pertain to different areas of responsibility that are distinct from the communications officer's duties.