Answer:
Scalability
Step-by-step explanation:
Based on the scenario being described within the question it can be said that the principle most likely being alluded would be Scalability. This term refers to an architecture's ability to be correctly scaled up in order to meet the increased work loads being required due to large increases in demand. This is usually done in when the system is at max capacity, and if the architecture is not scalable then it can get overloaded and crash.