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Question
Data transformation includes which of the following?
Options
A. A process to change data from a detailed level to a summary level
B. A process to change data from a summary level to a detailed level
C. Joining data from one source into various sources of data
D. Separating data from one source into various sources of data
Correct Answer
A process to change data from a detailed level to a summary level
More questions
1. A benefit of using a stored procedure is that it can be distributed to client computers.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. Nonclustered indexes are faster than clustered indexes for retrieval.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
3. A null value is assigned when no other value applies.
Options
A. True
B. False
Show Answer
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Correct Answer: True
4. With SQL Server pessimistic locking, no lock is obtained until the user updates the data.
Options
A. True
B. False
Show Answer
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Correct Answer: False
5. In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
6. XML is a rapidly developing scripting language that may, in conjunction with XHTML, replace HTML.
Options
A. True
B. False
Show Answer
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Correct Answer: True
7. With an asynchronous system, the requesting system waits for a response in real time.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
8. Business Intelligence (BI) systems do
not
obtain their data by which of the following means?
Options
A. Read and process data from an operational database
B. Process transactions
C. Process extracts from operational databases
D. Process data purchased from data vendors
Show Answer
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Discuss
Correct Answer: Process transactions
9. An SQL Server reserved word must be placed in brackets. If the word is not in brackets, SQL Server will try to interpret it as the name of one of its special words.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
10. The Windows operating system and Windows applications are event driven.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
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