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Database Design Using Normalization
See What Others Are Saying!
Question
Read-only databases are ________ updated.
Options
A. always
B. commonly
C. seldom
D. never
Correct Answer
never
More questions
1. Independent data marts are often created because an organization focuses on a series of short-term business objectives.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. Oracle directly supports the definition of surrogate keys.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
4. The "F" in RFM analysis stands for ________ .
Options
A. frequently
B. freshness
C. fast food
D. fantasy
Show Answer
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Discuss
Correct Answer: frequently
5. The design guidelines and priorities for read-only databases are different because read-only databases are never updated.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
6. Which of the following statement is true concerning objects and/or classes?
Options
A. An object is an instance of a class.
B. A class is an instance of an object.
C. An object includes encapsulates only data.
D. A class includes encapsulates only data.
Show Answer
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Discuss
Correct Answer: An object is an instance of a class.
7. Who invented Java?
Options
A. Netscape
B. Microsoft
C. Sun
D. None of the above is correct.
Show Answer
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Discuss
Correct Answer: Sun
8. Which is not a type of data management technology?
Options
A. Relational
B. Rational
C. Object-oriented
D. Dimensional
Show Answer
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Discuss
Correct Answer: Rational
9. HTML is an application of a more robust document markup language called:
Options
A. XHTML.
B. XML.
C. SGML.
D. None of the above is correct.
Show Answer
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Discuss
Correct Answer: SGML.
10. A candidate key is a determinant that determines all the other columns is a relation.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
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