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Home Database XML and ADO.NET See What Others Are Saying!
  • Question
  • 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.

  • Correct Answer
  • not-type-valid. 


  • More questions

    • 1. A primary key is which of the following?

    • Options
    • A. Any attribute
    • B. An attribute that uniquely identifies each row
    • C. An attribute that uniquely identifies each column
    • D. A derived attribute
    • Discuss
    • 2. A functional dependency is a relationship between or among attributes.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Selecting a data type involves which of the following?

    • Options
    • A. Maximize storage space
    • B. Represent most values
    • C. Improve data integrity
    • D. All of the above.
    • Discuss
    • 4. Which of the following are integrity controls that a DBMS may support?

    • Options
    • A. Assume a default value in a field unless a user enters a value for that field.
    • B. Limit the set of permissible values that a field may assume.
    • C. Limit the use of null values in some fields.
    • D. All of the above.
    • Discuss
    • 5. The extract process is which of the following?

    • Options
    • A. Capturing all of the data contained in various operational systems
    • B. Capturing a subset of the data contained in various operational systems
    • C. Capturing all of the data contained in various decision support systems
    • D. Capturing a subset of the data contained in various decision support systems
    • Discuss
    • 6. The SQL keyword BETWEEN is used:

    • Options
    • A. for ranges.
    • B. to limit the columns displayed.
    • C. as a wildcard.
    • D. None of the above is correct.
    • Discuss
    • 7. Which of the following statements is true concerning JDBC?

    • Options
    • A. It is language independent.
    • B. It is similar in concept to ODBC.
    • C. It is useful for all object-oriented languages.
    • D. It consists of three main layers.
    • Discuss
    • 8. The three different application logic components are which of the following?

    • Options
    • A. Presentation, Client, and Storage
    • B. Presentation, Client, and Processing
    • C. Presentation, Processing, and Storage
    • D. Presentation, Processing, and Network
    • Discuss
    • 9. An application program interface (API) is which of the following?

    • Options
    • A. The same thing as ODBC.
    • B. Middleware that does not provide access to a database.
    • C. Middleware that provides access to a database.
    • D. The same thing as JDBC.
    • Discuss
    • 10. A data warehouse is which of the following?

    • Options
    • A. Can be updated by end users.
    • B. Contains numerous naming conventions and formats.
    • C. Organized around important subject areas.
    • D. Contains only current data.
    • Discuss


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