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Object-Oriented Data Modeling
See What Others Are Saying!
Question
A UML diagram includes which of the following?
Options
A. Class name
B. List of attributes
C. List of operations
D. All of the above.
Correct Answer
All of the above.
More questions
1. An Enterprise Resource Planning application is an example of a(n) ________ .
Options
A. single-user database application
B. multiuser database application
C. e-commerce database application
D. data mining database application
Show Answer
Scratch Pad
Discuss
Correct Answer: multiuser database application
2. Relations are:
Options
A. two-dimensional tables.
B. three-dimensional tables.
C. four-dimensional tables.
D. five-dimensional tables.
Show Answer
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Discuss
Correct Answer: two-dimensional tables.
3. If any required (NOT NULL) columns are missing from the view, the view cannot be used for inserting new data.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
4. To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.
Options
A. ONLY
B. UNIQUE
C. DISTINCT
D. SINGLE
Show Answer
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Discuss
Correct Answer: DISTINCT
5. A composite attribute does not get mapped into a relation.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
6. A collection of literals or object types is called a bag.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
7. SQL Server indexes are special data structures used to improve performance.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
8. A data source is an ODBC data structure that identifies a database and the DBMS that processes it.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
9. A recursive relationship is a relationship between an archetype and an instance of that archetype.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
10. Data processing logic includes such activities as data validation and identification of processing errors.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
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