Suppose you were designing applications for a standard file server environment. One issue discussed in this chapter for this distributed processing environment is that the application software on each client PC must share in the responsibilities for data management. One data management problem that can arise is that applications running  concurrently on two clients may want to update the same data at the same time. What could you do to manage this  potential conflict? Is there any way this conflict might result in both PCs making no progress (in other words, going into an infinite loop)? How might you avoid such problems?