Which of the following remarks about system calls, library functions and UNIX commands are true?
A. | System call is a part of kernel, while the other two are not a part of kernel |
B. | Unlike library functions. system calls and Unix commands are stand-alone programs |
C. | Library functions and UNIX commands use system calls |
D. | Unlike system calls, library functions and UNIX commands are stand-alone programs |
Option: C Explanation : Click on Discuss to view users comments. |
A fork system call will fail. if
A. | The previously executed statement is also a fork call |
B. | The limit on the maximum number of processes in the system would be exceeded. |
C. | The limit on the maximum number of processes that can be under execution by a single user would be exceeded. |
D. | Both (b) & (c) |
Option: D Explanation : Click on Discuss to view users comments. |
Which of the following is used to write disk block images from memory to disk?
A. | clri |
B. | sync |
C. | rnkfs |
D. | stty |
Option: B Explanation : Click on Discuss to view users comments. |
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