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Home ‣ Database ‣ Managing Multiuser Databases Comments
  • Question

  • When two transactions are being processed against the database at the same time they are termed concurrent transactions.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Managing Multiuser Databases problems

    Search Results

    • 1. The overall responsibility of the DBA is to facilitate the development and use of the database.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. 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
    • 3. 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
    • 4. A point of synchronization between the database and the transaction log is generally referred to as a stop point.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Two transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately are referred to as serializable transactions.

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

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A durable transaction is one in which all committed changes are permanent.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. An exclusive lock locks the item from change but not from read.

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

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

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