Discussion Forum

Selecting the victim to be rollbacked to the previous state is determined by the minimum cost. The factors determining cost of rollback is

A. How long the transaction has computed, and how much longer the transaction will compute before it completes its designated task.

B. How many data items the transaction has used.

C. How many more data items the transaction needs for it to complete and how many transactions will be involved in the rollback.

D. All of the above

Answer: D . All of the above

If you think the posted answer is wrong or Confused About the Answer? Ask for Details Here

Know Explanation? Add it Here
we’ll review your comment and contact you soon….

Computer MCQS