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  • Question
  • An exclusive lock locks the item from change but not from read.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • Managing Multiuser Databases problems


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    • 1. A durable transaction is one in which all committed changes are permanent.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. An ACID transaction is one that is atomic, consistent isolated, and durable.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. The size of the lock is referred to as the lock granularity.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. When two transactions are being processed against the database at the same time they are termed concurrent transactions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The overall responsibility of the DBA is to facilitate the development and use of the database.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Database administration refers to a function that applies to the entire organization.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Locks placed by command are implicit locks.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. The size of a lock is referred to as lock sizing.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The goal of database security is to ensure that only authorized users can perform authorized activities at authorized times.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. Resource locking is a process to prevent multiple applications from obtaining copies of the same record when the record is about to be changed.

    • Options
    • A. True
    • B. False
    • Discuss


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