1. | In UNIX, which of the following command is used to set the task priority ? |
Answer: (b).nice
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2. | Which of the following flags are set when ‘JMP’ instruction is executed ? |
Answer: (d).No flag is set
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3. | Everything below the system call interface and above the physical hardware is known as ______. |
Answer: (a).Kernel
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4. | Linux operating system uses |
Answer: (b).Fair Preemptive Scheduling
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5. | In Unix, how do you check that two given strings a and b are equal? |
Answer: (d).both a and c
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6. | The directory structure used in Unix file system is called |
Answer: (a).Hierarchical directory
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7. | Which statement is not true about process 0 in the Unix operating system? |
Answer: (a).Process 0 is called init process
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8. | Which or the following commands would return process_id of sleep command? |
Answer: (b).Sleep 1 and echo #
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9. | What does the following command do ? grep − vn "abc" x |
Answer: (a).It will print all of the lines in the file x that match the search string "abc"
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10. | The Unix Kernel maintains two key data structures related to processes, the progress table and the user structure. Which of following information is not the part of user |
Answer: (c).Scheduling parameters
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