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Allocation map

  • Used to store program data
  • specifies which blocks are used by which file
  • is updated by application programs
  • allow programs to erase files

Answer: Option B

Similar Questions :

1. File record length

  • should always be fixed
  • should always be variable
  • should be chosen to match the data character
  • depends upon the size of file

Answer: Option D

2. Secondary index can be related with

  • Function dependency
  • B tree
  • Domain calculus
  • Relational algebric operators

Answer: Option B

3. Natural join can be related with

  • Function dependency
  • B tree
  • Domain calculus
  • Relational algebric operators

Answer: Option D

4. Transaction processing was made possible by the development of

  • direct access storage
  • magnetic tape
  • cash register input
  • minicomputers

Answer: Option A

5. Administrative supervision of database activities is responsibility of

  • Database administrator
  • DP Manager
  • DB Manager
  • None of above

Answer: Option A

Read more from - Database Question Answers - Chapter 1
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