Operating System Basics Questions and Answers

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Q531
Fragmentation of the file system
  • A can always be prevented
  • B Occurs only if the file system is used improperly
  • C can be temporarily removed by compaction
  • D is a characterstic of all file systems
Answer: Option C
Q532
File record length
  • A should always be fixed
  • B should always be variable
  • C depends upon the size of the file
  • D should be chosen to match the data character
Answer: Option C
Q533
Disaster recovery
  • A is needed by every installation
  • B is never needed
  • C varies in degree between installations
  • D requires off site computer for immediate use
Answer: Option C
Q534
Wild-card specifies
  • A provide an easy way of finding groups of related files
  • B are only used when printing the contents of files
  • C can be used when writing a file
  • D allow several files to be read simultaneously
Answer: Option A
Q535
The allocation map
  • A is used to store program data
  • B specifies which blocks are used by which file
  • C is update by applications programs
  • D allows programs to erase files
Answer: Option B
Q536
The activity of a file
  • A is a low percentage of number of records that are added to or deleted from a file
  • B is a measure of the percentage of existing records updated during a run
  • C refers to how colsely the files fit into the allocated space
  • D is a measure of the number of records added or deleted from a file compassed with the original number of records
Answer: Option A
Q537
The volatility of a file refers to
  • A The number of records added or deleted from a file composed to the original number of records in that file
  • B Efficiency with which non-sequential files are processed
  • C The extent where the records of thefile are contiguous and in proximity to others
  • D Percentage of records that has changed in a given time period
Answer: Option A
Q538
Which types of file orgaanization are supported by magnetic tape ?
  • A random files
  • B contiguous sequential file
  • C indexedsequential file
  • D all of the above
Answer: Option B
Q539
Address Binding id defined as
  • A Compiler wil typically bind these symbolic addresses to relocatabe addresses
  • B Each binding is a mapping from one address space to a another
  • C The linkage editor or loader win in turn bind these relocatable addresses to absolute addresses
  • D All of the above
Answer: Option D
Q540
Compile time
  • A Where the process will reside in memory, then absolute code can be generated.
  • B Where the process will reside in memory, then the compiler must generate relocatable code.
  • C If the process can be moved during its execution from one memory segment to another, the binding must be delayed until run time
  • D All of the above
Answer: Option A

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