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- Question
A cursor type in which the application sees the data as they were at the time the cursor was opened is called:
Options- A. forward only.
- B. static.
- C. keyset.
- D. dynamic.
- Correct Answer
- static.
- 1. A transaction for which all committed changes are permanent is called:
Options- A. atomic.
- B. consistent.
- C. isolated.
- D. durable. Discuss
- 2. 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. Discuss
- 3. In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.
Options- A. Read committed
- B. Read uncommitted
- C. Repeatable read
- D. Serializable Discuss
- 4. Which of the following occurs when a transaction rereads data and finds new rows that were inserted by a command transaction since the prior read?
Options- A. Nonrepeatable read
- B. Phantom read
- C. Dirty read
- D. Consistent read Discuss
- 5. Which of the following occurs when one transaction reads a changed record that has not been committed to the database?
Options- A. Nonrepeatable read
- B. Phantom read
- C. Dirty read
- D. Consistent read Discuss
- 6. A cursor type in which the application can only move forward through the recordset is called:
Options- A. forward only.
- B. static.
- C. keyset.
- D. dynamic. Discuss
- 7. Locks placed by command are called ________ .
Options- A. implicit locks
- B. explicit locks
- C. exclusive locks
- D. shared locks Discuss
- 8. Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?
Options- A. Nonrepeatable read
- B. Phantom read
- C. Dirty read
- D. Consistent read Discuss
- 9. Which of the following refers to the SQL Server transaction isolation level which places and holds locks on all rows that are read?
Options- A. REPEATABLE READ
- B. SERIALIZABLE
- C. READ COMMITTED
- D. READ UNCOMMITTED Discuss
- 10. In SQL Server 2000, which of the following makes a copy of the changes that have been made to the database since the last complete backup?
Options- A. Complete backup
- B. Transaction Log
- C. Differential backup
- D. None of the above is correct. Discuss
Managing Multiuser Databases problems
Search Results
Correct Answer: durable.
Correct Answer: the lock is obtained only after the transaction has processed.
Correct Answer: Read committed
Correct Answer: Phantom read
Correct Answer: Dirty read
Correct Answer: forward only.
Correct Answer: explicit locks
Correct Answer: Nonrepeatable read
Correct Answer: REPEATABLE READ
Correct Answer: Differential backup
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