Question

what are rpcs primarily used for? a process demand paging b interprocess communications c interprocess semaphores d remote method invocation

Explanation:

RPCs (Remote - Procedure Calls) are mainly used for remote method invocation. They allow a program on one computer to call a procedure or function in another address - space (usually on a different computer across a network) without having to explicitly code the details of the network communication. Process demand paging is related to memory management, inter - process communications can be done in other ways like message passing, and inter - process semaphores are for synchronization, not the main use of RPCs.

Answer:

D. Remote method invocation