Suppose that the operating system uses two internal tables to keep track of open files. Process A has two files open and process B has three files open. Two files are shared between the two processes. How many entries are in the per-process table of process
A, the per-process table of process
B, and the system-wide tables, respectively?
A.5, 5, 5
B.2, 3, 3
C.2, 3, 5
D.2, 3, 1
正确答案是B