Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which of the following concurrency control schemes is not based on the serializability property?

  • A.Two - phase locking
  • B.Graph-based locking
  • C.Time-stamp based locking
  • D.None of these .

Answer: D

Correct answer: None of these .

All three schemes exist to guarantee serializability: two-phase locking and the tree protocol enforce it by the order in which locks are taken, and timestamp ordering by comparing transaction timestamps. So none of them is the odd one out.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.