Autograde Summary

Date Taken: 3/18/2011 2:20:32 PM

Time Spent: 107:26:07

Points Received: 20 / 20 (100%)These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below.

Question Type: # Questions: # Correct:

Multiple choice 10 10

Grade Details 1. Question: A characteristic or quality describing an entity is called a(n):

 

Your Answer:          Field    

         Tuple    

         Key field    

         Attribute ( pp. 210 )    CORRECT

 Points

Received:2 of 2

  Comments:2. Question: A DBMS:

 

Your Answer:         Makes the physical database available for

different logical views. ( p. 212 )

   CORRECT

         Makes the logical database available for different analytical views.    

         Makes the physical database available for different analytical views.    

         Makes the relational database available for different analytical views.    

 Points

Received:2 of 2

  Comments:3. Question: The logical view:

 

Your Answer:          Shows how data are organized and structured on the storage media.    

         Presents an entry screen to the user.    

         Allows the creation of supplementary reports.    

         Presents data as they would be perceived by end users.

 ( p. 212 )

   CORRECT

 Points

Received:2 of 2

  Comments:4. Question: The data dictionary serves as an important data management tool by:

  Your Answer:          Assigning attributes to the data    

         Creating an inventory of data contained in the database

 ( pp. 217 )

   CORRECT

         Presenting data as end users or business specialists would perceive them    

         Maintaining data in updated form    

 Points

Received:2 of 2

  Comments:5. Question: The type of database management approach that can handle multimedia is the:

 

Your Answer:          Hierarchical DBMS    

         Relational DBMS    

         Network DBMS    

         Object-oriented DBMS ( p. 215 )    CORRECT

 Points

Received:2 of 2

  Comments:6. Question: The most prominent data manipulation language today is:

 

Your Answer:          Access    

         DB2    

         SQL  ( p. 217 )    CORRECT

         Crystal Reports    

 Points

Received:2 of 2

  Comments:7. Question: The process of streamlining data to minimize redundancy and awkward many-to-

many relationships is called.

 

Your Answer:          Normalization  ( p. 219 )    CORRECT

         Data scrubbing    

         Data cleansing    

         Data defining    

 Points

Received:2 of 2

  Comments:8. Question: In what type of a database system is the central database replicated at all remote

locations?

 

Your Answer:          Partitioned    

         Normalized    

         Distributed ( p. 221 )    CORRECT

         Networked    

 Points

Received:2 of 2

  Comments:9. Question: Data mining is a tool for allowing users to:

 

Your Answer:          Quickly compare transaction data gathered over many years    

         Find hidden relationships in data ( p. 228 )

   CORRECT

         Obtain online answers to ad hoc questions in a rapid amount of time    

         Summarize massive amounts of data into much smaller, traditional reports    

 Points

Received:2 of 2

  Comments:10

.Question: The tool that enables users to view the same data in different ways using multiple

dimensions is:

 

Your Answer:          Predictive analysis    

         SQL    

         OLAP  ( p. 226 )    CORRECT

         Data mining    

 Points

Received:2 of 2

  Comments: