Which action is part of verifying the launcher's operational status?

Verifying the launcher's operational status involves ensuring that all systems are functioning correctly and are ready for action. Conducting a communication test is a critical part of this verification process, as it confirms that the launch system can effectively send and receive communications. This is essential for operational readiness, as proper communication is necessary for coordinating with command and control or for executing launch commands.

While updating software programs, consulting maintenance logs, and changing the fuel supply may contribute to overall launcher maintenance, they don't directly assess the immediate operational capability of the launcher in the same way as a communication test does. A successful communication test ensures that, should the need arise for deployment, the launcher can reliably receive instructions and communicate its status.