UNIX-like operating system use two internal tables to keep track of open files – the per-process file descriptor table and the system-wide file table. Suppose on a UNIX-like operating system, 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

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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UNIX-like operating system use two internal tables to keep track of open files – the per-process file descriptor table and the system-wide file table. Suppose on a UNIX-like operating system, 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
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