XYZ Inc.

XYZ Inc. is an esteemed organization that deals with a variety of internet services and solutions. The organization is developing an Internet-based messaging application, which is currently in the analysis phase. According to the analysis conducted, if a disaster destroyed the primary server, the secondary server would only be able to take the traffic load for four hours since it had limited memory and storage capabilities. Hence, the primary server would need to be up and running within four hours. What technical term best defines this time period of four hours?