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Which condition(s) must be met for the two operations to conflict?

20. Which condition(s) must be met for the two operations to conflict?

1. Both transactions are separate.
2. The data item is the same for both of them.
3. A write operation is present in at least one of them.
4. All of the above

Answer: D) All of the above

Explanation:

All conditions must be met for the two operations to conflict:

1. Both transactions are separate.
2. The data item is the same for both of them.
3. A write operation is present in at least one of them.