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  • Question
  • Locks placed by command are called ________ .


  • Options
  • A. implicit locks
  • B. explicit locks
  • C. exclusive locks
  • D. shared locks

  • Correct Answer
  • explicit locks 


  • Managing Multiuser Databases problems


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    • 1. 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
    • 2. 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.
    • Discuss
    • 3. A transaction for which all committed changes are permanent is called:

    • Options
    • A. atomic.
    • B. consistent.
    • C. isolated.
    • D. durable.
    • Discuss
    • 4. 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
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. Which of the following is a way to create and modify tables using SQL Server?

    • Options
    • A. Write SQL code using either CREATE or ALTER SQL statements only.
    • B. Use the graphical facilities of SQL Server Enterprise Manager only.
    • C. Both of the two methods above will work.
    • D. Neither of the two methods above will work.
    • Discuss
    • 10. With this type of index, the bottom level of an index does not contain data, but rather it contains pointers to data.

    • Options
    • A. Nonclustered
    • B. Clustered
    • C. Primary
    • D. Secondary
    • Discuss


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