MCITP Self-Paced Training Kit Exam 70-442 .Designing and Optimizing Data Access by Using Microsoft SQL Server 2005
| 1. | Which isolation level or levels protect against phantom rows? | |
| 2. | Which isolation level or levels do not acquire shared locks? | |
| 3. | Where are old versions of rows in snapshot isolation stored? | |
| 4. | Which is the default isolation level? | |
Answers
| 1. | The serializable and snapshot isolation levels protect against phantom rows. |
| 2. | Snapshot, read committed snapshot, and the read uncommitted isolation level do not acquire shared locks. |
| 3. | Old versions of rows in snapshot isolation are stored in the tempdb system database. |
| 4. | The read committed isolation level is the default isolation level. |
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