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Database System 2 - CS - Advanced SQL
Database System 2 - CS - SQL Server 2000
Database System 2 - CS - Data Warehousing
Database System 2 - CS - XML and ADO.NET
Database System 2 - CS - Database Redesign
Database System 2 - CS - Introduction to SQL
Database System 2 - CS - Distributed Databases
Database System 2 - CS - Client Server Database
Database System 2 - CS - Data Modeling with ER
Database System 2 - CS - Logical Database Design
Database System 2 - CS - Introduction to Database
Database System 2 - CS - Object Oriented Database
Database System 2 - CS - Physical Database Design
Database System 2 - CS - The Database Environment
Database System 2 - CS - ODBC, OLE DB, ADO, and ASP
Database System 2 - CS - ER Model and Business Rules
Database System 2 - CS - Database Processing for BIS
Database System 2 - CS - Managing Multiuser Databases
Database System 2 - CS - Object Oriented Data Modeling
Database System 2 - CS - Managing Databases with Oracle
Database System 2 - CS - SQL for Database Construction
Database System 2 - CS - Data and Database Administration
Database System 2 - CS - Data Models into Database Designs
Database System 2 - CS - Modeling Data in the Organization
Database System 2 - CS - The Database Development Process
Database System 2 - CS - The Internet Database Environment
Database System 2 - CS - JDBC, Java Server Pages, and MySQL
Database System 2 - CS - Database Design Using Normalization
Database System 2 - CS - The Relational Model and Normalization
  1. If a denormalization situation exists with a one-to-one binary relationship, which of the following is true?

    2. A.

     All fields are stored in one relation.
    B.

     All fields are stored in two relations.
    C.

     All fields are stored in three relations.
    D.

     All fields are stored in four relations.

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  2. Selecting a data type involves which of the following?

    3. A.

     Maximize storage space
    B.

     Represent most values
    C.

     Improve data integrity
    D.

     All of the above.

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  3. What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary?

    4. A.

     VARCHAR2
    B.

     CHAR
    C.

     LONG
    D.

     NUMBER

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  4. If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true?

    5. A.

     All fields are stored in one relation.
    B.

     All fields are stored in two relations.
    C.

     All fields are stored in three relations.
    D.

     All fields are stored in four relations.

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  5. Which of the following is an advantage of partitioning?

    6. A.

     Complexity
    B.

     Inconsistent access speed
    C.

     Extra space
    D.

     Security

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  6. The blocking factor is:

    7. A.

     a group of fields stored in adjacent memory.
    B.

     the number of physical records per page.
    C.

     attributes grouped together by the same primary key.
    D.

     attributes grouped together by the same secondary key.

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  7. Which of the following improves a query's processing time?

    8. A.

     Write complex queries.
    B.

     Combine a table with itself.
    C.

     Query one query within another.
    D.

     Use compatible data types.

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  8. Which of the following are integrity controls that a DBMS may support?

    9. 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.

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  9. Which of the following is not a factor to consider when switching from small to large block size?

    10. A.

     The length of all of the fields in a table row
    B.

     The number of columns
    C.

     Block contention
    D.

     Random row access speed

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  10. What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length?

    11. A.

     VARCHAR2
    B.

     CHAR
    C.

     LONG
    D.

     NUMBER

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