Question Detail

Modify operation is likely to be done after

  • Delete
  • Lookup
  • Indexing
  • Insertion
Similar Questions :

1. Network structure

  • is a physical representation of data
  • is conceptually simple
  • allows many to many relationships
  • none of above

2. RAID configurations of a disk are used to provide

  • fault tolerance
  • high speed
  • high data density
  • none of above

3. Ascending order of data hierarchy is

  • bit->byte->record->field->file->database
  • bit->byte->field->record->file->database
  • byte->bit->field->record->file->database
  • byte->bit->field->file->record->database

4. Data dictionary is a special file that contains

  • the names of all fields in all files
  • the data types of all fields of all files
  • Both of above
  • None of above

5. Fragmentation of a file system

  • Can always be prevented
  • occurs only is file is not used properly
  • Can be temporarily removed by compaction
  • None of above
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