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pointer type

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If we delete a record to which another record contains a pointer,  then that pointer is called a

  1. Pinned pointer
  2. Dangling pointer
  3. Pointless pointer
  4. None of the above
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We can think like this If a pointer is pointing the memory address of any record but after some point of time record has deleted from that memory location while pointer is still pointing such memory location. Such pointer is known as dangling pointer .

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