Which term is used for a message that requires a flash response time?

The term used for a message that requires a flash response time is "flash." This designation indicates that the message is of the utmost urgency and requires immediate attention and action. Flash messages are typically used in situations where time-sensitive information is critical, and prompt communication is necessary to avert danger or facilitate a swift response to an evolving situation.

In contrast, the other terms represent varying levels of urgency for communications. Routine messages are considered standard and can be addressed within a normal time frame without any urgency. Priority messages indicate a higher level of urgency than routine but do not necessitate the immediate response required by flash messages. Immediate messages also require prompt attention but still fall short of the highest urgency associated with flash communications. Understanding these distinctions is essential for effectively prioritizing responses in operational contexts.