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1.
A data warehouse administrator is concerned with which of the following?
Answer & Solution
Answer: (B) The time to make a decision and the typical roles of a database administrator
Solution:
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2.
Which of the following is the preferred way to recover a database after a system failure?
Answer & Solution
Answer: (C) Switch to duplicate database
Solution:
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3.
Concurrency control is important for which of the following reasons?
Answer & Solution
Answer: (A) To ensure data integrity when updates occur to the database in a multiuser environment
Solution:
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4.
Which of the following is true concerning open-source DBMS?
Answer & Solution
Answer: (A) Is free or nearly free database software whose source code is publicly available
Solution:
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5.
Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?
Answer & Solution
Answer: (A) Rollback
Solution:
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