One change control function that is required in client/server environments, but is not required in mainframe environments, is to ensure that:
One change control function that is required in client/server environments, but is not required in mainframe environments, is to ensure that:
In client/server environments, ensuring that program versions are synchronized across the network is crucial due to the distributed nature of these systems. In a mainframe environment, the centralized architecture reduces the risk of having inconsistent program versions. Therefore, the need for synchronization of program versions across the network is a distinct requirement in client/server environments.
pls tell me why A is correct
A mainframe can have more than one operating systems.
The existence of a mainframe (large computer) does not necessarily imply a network/server configuration.