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Andrew S. Tanenbaum (OS) Edition 4 Exercise 1 Question 23 (Page No. 82 - 83)

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A file whose file descriptor is fd contains the following sequence of bytes$: 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5.$ The following system calls are made:

  • lseek(fd, $3$, SEEK SET);
  • read(fd, &buffer, $4$);

where the lseek call makes a seek to byte $3$ of the file. What does buffer contain after the read has completed?

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