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Data and Database Administration
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Question
Performance analysis and tuning is which of the following?
Options
A. Undertaken one time at the time of a DBMS installation
B. Undertaken one time at the time of the implementation of a new application
C. Undertaken as an ongoing part of the backup of a database
D. Undertaken as an ongoing part of managing a database
Correct Answer
Undertaken as an ongoing part of managing a database
Data and Database Administration problems
Search Results
1. Which of the following is part of an administrative policy to secure a database?
Options
A. Authentication policies
B. Limiting particular areas within a building to only authorized people
C. Ensure appropriate responses rates are in external maintenance agreements
D. All of the above.
Show Answer
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Correct Answer: All of the above.
2. Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?
Options
A. Rollback
B. Rollforward
C. Switch to duplicate database
D. Reprocess transactions
Show Answer
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Discuss
Correct Answer: Rollback
3. Which of the following could cause data to be unavailable?
Options
A. Data becoming lost or inaccurate
B. The database server
C. Planned database maintenance activities
D. All of the above.
Show Answer
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Correct Answer: All of the above.
4. Common Gateway Interface (CGI) is which of the following?
Options
A. An interface that accepts and returns data that may be written in SQL.
B. An interface that accepts and returns data that may be written in any language that produces an executable file.
C. A small program that executes within another application and is stored on the server.
D. A small program that executes within another application and is stored on the client.
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Correct Answer: An interface that accepts and returns data that may be written in any language that produces an executable file.
5. What is Hypertext Transfer Protocol (HTTP)?
Options
A. The protocol to copy files between computers
B. The transfer protocol to transfer Web pages to a browser
C. The database access protocol for SQL statements
D. The hardware/software protocol that limits access to company data
Show Answer
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Correct Answer: The transfer protocol to transfer Web pages to a browser
6. Concurrency control is important for which of the following reasons?
Options
A. To ensure data integrity when updates occur to the database in a multiuser environment
B. To ensure data integrity when updates occur to the database in a single-user environment
C. To ensure data integrity while reading data occurs to the database in a multiuser environment
D. To ensure data integrity while reading data occurs to the database in a single-user environment
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Correct Answer: To ensure data integrity when updates occur to the database in a multiuser environment
7. Which of the following is the preferred way to recover a database after a system failure?
Options
A. Rollback
B. Rollforward
C. Switch to duplicate database
D. Reprocess transactions
Show Answer
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Discuss
Correct Answer: Switch to duplicate database
8. Which of the following is true concerning open-source DBMS?
Options
A. Is free or nearly free database software whose source code is publicly available
B. Is free or nearly free database software whose source code is not publicly available
C. Is not competitive against PC-oriented packages and is fully SQL compliant
D. Is competitive against PC-oriented packages and is not fully SQL compliant
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Correct Answer: Is free or nearly free database software whose source code is publicly available
9. A shared lock allows which of the following types of transactions to occur?
Options
A. Delete
B. Insert
C. Read
D. Update
Show Answer
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Discuss
Correct Answer: Read
10. If both data and database administration exist in an organization, the database administrator is responsible for which of the following?
Options
A. Data modeling
B. Database design
C. Metadata
D. All of the above.
Show Answer
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Correct Answer: Database design
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