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Home ‣ Database ‣ Distributed Databases See What Others Are Saying!
  • Question

  • A distributed unit of work allows various statements within a unit of work to refer to multiple remote DBMS locations.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. Type 3 and Type 4 JDBC drivers can be used for sevlets and applets.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. If an XML document does not have a DTD, then by definition it is:

    • Options
    • A. not-type-valid.
    • B. type-valid.
    • C. an HTML document.
    • D. None of the above is correct.
      • Discuss
    • 3. When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. How does Tomcat execute a JSP?

    • Options
    • A. As a CGI script
    • B. As an independent process
    • C. By one of Tomcat's threads
    • D. None of the above is correct.
      • Discuss
    • 5. Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Which of the following is a group of one or more attributes that uniquely identifies a row?

    • Options
    • A. Key
    • B. Determinant
    • C. Tuple
    • D. Relation
      • Discuss
    • 7. Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM?

    • Options
    • A. IDMS
    • B. DB2
    • C. dBase-II
    • D. R:base
      • Discuss
    • 8. In a relation, the order of the columns does not matter.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. All instances of an entity class have the same attributes.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.

    • Options
    • A. optimistic
    • B. skeptical
    • C. ambivalent
    • D. None of the above is correct.
      • Discuss

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