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- Question
An ACID transaction is one that is atomic, consistent isolated, and durable.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The size of the lock is referred to as the lock granularity.
Options- A. True
- B. False Discuss
- 2. When two transactions are being processed against the database at the same time they are termed concurrent transactions.
Options- A. True
- B. False Discuss
- 3. The overall responsibility of the DBA is to facilitate the development and use of the database.
Options- A. True
- B. False Discuss
- 4. A transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all.
Options- A. True
- B. False Discuss
- 5. A phantom read occurs when a transaction rereads data it has previously read and finds modifications or deletions caused by a committed transaction.
Options- A. True
- B. False Discuss
- 6. A durable transaction is one in which all committed changes are permanent.
Options- A. True
- B. False Discuss
- 7. An exclusive lock locks the item from change but not from read.
Options- A. True
- B. False Discuss
- 8. Database administration refers to a function that applies to the entire organization.
Options- A. True
- B. False Discuss
- 9. Locks placed by command are implicit locks.
Options- A. True
- B. False Discuss
- 10. The size of a lock is referred to as lock sizing.
Options- A. True
- B. False Discuss
Managing Multiuser Databases problems
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