Basic Operating System MCQ

Basic Operating System MCQ
521. Shared sub-directories and files are example of
  • Cyclic graph directory
  • tree structured direction
  • one level directory
  • none of these
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522. The lowest level of I/O control consists of
  • device drivers
  • interrupt handlers
  • both A and B above
  • none of the above
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523. Which type of design problem in file system
  • how the file system should look to the user
  • algorithm and data structure must be created to map the logical file system onto the secondary storage device
  • Both A and B above
  • None of the above
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524. Of the following which is the methods for allocating disks
  • Contiguous
  • Linked
  • Indexed
  • All o the above
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525. External fragmentation solved by whichallocation ?
  • Contiguous allocation
  • linked allocation
  • index allocation
  • both B and C
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526. Whcih O/I are best method for allocating ?
  • Contiguous
  • Linked
  • Index
  • All of the above
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527. Allocate the first hole that is big enouggh is called
  • first fit
  • best fit
  • worst fit
  • all of the above
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528. Allocate the smallest hole that. is big enough is called
  • first fit
  • best fit
  • worst fit
  • all of the above
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529. The most efficient data set organization is
  • a sequential file
  • an ISAM file
  • variable depending upon the usage of the data set
  • a partitioned data set
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530. A partitioned data set is most used for
  • storing program data
  • storing ISAM files
  • a program or source library
  • storing backup information
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