Operating System (OS)
Questions 41 to 50
Which of the following page replacement algorithm use the technique of replace that page which is not used in the near future?
(a) LRU (b) LFU (c) ORA (d) FIFO (e) MFU.
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The set of pages that a process is currently using is called as
(a) Program (b) Page Group (c) Working Group
(d) Working Set (e) None of the above.
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Which of the following registers contains starting address of the program in the main memory?
(a) Address register (b) Base register (c) GPR
(d) Index register (e) Limit register.
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The process of converting logical address into physical address is known as
(a) Conversion (b) Displacement (c) Relocation
(d) Transfer (e) None of the above.
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In a segmentation scheme the logical memory will be divided into
(a) Pages (b) Frames (c) Blocks (d) Cells (e) Segments.
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Which of the following area is used to store the O.S programs in the main memory?
(a) User memory area (b) Monitor memory area
(c) Heap area (d) Stack area (e) Data area.
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In Unix which of the following system calls returns the meta data about a file?
(a) fstat (b) mstat (c) Metacall (d) Sigabort (e) fork.
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Information in the file is processed in order, one record after another. This mode of access is called________.
(a) Relative (b) Sequential (c) Direct (d) Index (e) Indexed-sequential.
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Which of the technique is used to recover the process from starvation situation?
(a) Paging (b) Aging (c) Compaction (d) Starvation (e) Reduction.
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Before we store data into a disk it must be divided into sectors and from where the disk controller can read and write. This is known as________.
(a) Low-level formatting (b) Fragmenting (c) High-level formatting
(d) Cleaning (e) Portioning a disk.
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Answers
Answer : (c)
Reason: ORA page replacement algorithm uses the technique of replace that page which is not used in the near future.
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Answer : (d)
Reason: The set of pages that a process is currently using is called Working set.
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Answer : (b)
Reason : Base register contains starting address of the program in the main memory
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Answer : (c)
Reason: The process of converting logical address into physical address is called relocation.
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Answer : (e)
Reason: In a segmentation scheme the logical memory will be divided into Segments.
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Answer : (b)
Reason: The place where OS programs are stored in the main memory is called Monitor memory area.
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Answer : (a)
Reason : fstat system cal returns the met data about a file
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Answer : (b)
Reason : Sequential orer
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Answer : (b)
Reason : Aging technique is used to recover the process from starvation
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Answer : (d)
Reason : Low-level formatting or Physical formatting
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