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Which of the following is a concurrency problem?

7. Which of the following is a concurrency problem?

1. Temporary Update Problem
2. Incorrect Summary Problem
3. Lost Update Problem
4. All of the above

Answer: D) All of the above

Explanation:

These are the concurrency problems -

1. Temporary Update Problem
2. Incorrect Summary Problem
3. Lost Update Problem
4. Unrepeatable Read Problem
5. Phantom Read Problem