The advantage of optimistic locking is that: Options: A . &nbspthe lock is obtained only after the transaction has processed. B . &nbspthe lock is obtained before the transaction has processed. C . &nbspthe lock never needs to be obtained. D . &nbsptransactions that are best suited are those with a lot of activity.

The advantage of optimistic locking is that:

Question

The advantage of optimistic locking is that:

Options:

A . the lock is obtained only after the transaction has processed.

B . the lock is obtained before the transaction has processed.

C . the lock never needs to be obtained.

D . transactions that are best suited are those with a lot of activity.

Answer: Option A

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Question 1. Which of the following refers to a cursor type that when the cursor is opened, a primary key value is saved for each row....is used to fetch the current values of the row?

Question 2. Which of the following refers to a cursor type where changes of any type and from any source are visible?....

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Question 4. Dirty read, nonrepeatable, and phantom reads are not possible in this instance.....

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Question 6. A cursor type in which the application can only move forward through the recordset is called:....

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Question 8. Which of the following locks the item from access of any type?....

Question 9. The size of a lock is called:....

Question 10. What is the overall responsibility of the DBA?....

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