Database Administration Multiple choice Questions & Answers

Posted On:May 30, 2019, Posted By: Latest Interview Questions, Views: 149, Rating :

Best Database Administration Objective type Questions and Answers

Dear Readers, Welcome to Database Administration Objective Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Database Administration Multiple choice Questions. These Objective type Database Administration are very important for campus placement test and job interviews. As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industry.

 

1. Poor data administration can lead to which of the following? | Database Administration Mcqs

A. A single definition of the same data entity

B. Familiarity with existing data

C. Missing data elements

D. All of the above.

Answer: C

Objective Type Questions On Database Administration

2. A traditional data administrator performs which of the following roles? | Database Administration Mcqs

A. Tune database performance

B. Establish backup and recovery procedures

C. Resolve data ownership issues

D. Protect the security of the database.

Answer: C

 

3. If both data and database administration exist in an organization, the database administrator is responsible for which of the following? | Database Administration Mcqs

A. Data modeling

B. Database design

C. Metadata

D. All of the above.

Answer: B

 

4. Which of the following is part of an administrative policy to secure a database? | Database Administration Mcqs

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.

Answer: D

 

5. Backward recovery is which of the following? | Database Administration Mcqs

A. Where the before-images are applied to the database

B. Where the after-images are applied to the database

C. Where the after-images and before-images are applied to the database

D. Switching to an existing copy of the database

Answer: A

 

6. The transaction log includes which of the following? | Database Administration Mcqs

A. The before-image of a record

B. The after-image of a record

C. The before and after-image of a record

D. The essential data of the record

Answer: D

 

7. Which of the following could cause data to be unavailable? | Database Administration Mcqs

A. Data becoming lost or inaccurate

B. The database server

C. Planned database maintenance activities

D. All of the above.

Answer: D

 

8. A shared lock allows which of the following types of transactions to occur? | Database Administration Mcqs

A. Delete B. Insert

C. Read D. Update

Answer: C

 

9. Locking may cause which of the following problems? | Database Administration Mcqs

A. Erroneous updates

B. Deadlock

C. Versioning

D. All of the above.

Answer: B

 

10. Performance analysis and tuning is which of the following? | Database Administration Mcqs

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

Answer: D

 

11. Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally? | Database Administration Mcqs

A. Rollback

B. Rollforward

C. Switch to duplicate database

D. Reprocess transactions

Answer: A

 

12. Which of the following is true concerning open-source DBMS? | Database Administration Mcqs

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

Answer: A

 

13. Concurrency control is important for which of the following reasons? | Database Administration Mcqs

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

Answer: A

 

14. Which of the following is the preferred way to recover a database after a system failure? | Database Administration Mcqs

A. Rollback

B. Rollforward

C. Switch to duplicate database

D. Reprocess transactions

Answer: C

 

15. A data warehouse administrator is concerned with which of the following? | Database Administration Mcqs

A. The time to make a decision but not the typical roles of a database administrator

B. The time to make a decision and the typical roles of a database administrator

C. The typical roles of a data administrator and redesigning existing applications

D. The typical roles of a database administrator and redesigning existing applications

Answer: B

 

16. To build a data warehouse and develop business intelligence applications, it is important that an organization build and maintain a comprehensive repository. | Database Administration Mcqs

A. True

B. False

Answer: A

 

17. Failure to control confidentiality may lead to loss of competitiveness. | Database Administration Mcqs

A. True

B. False

Answer: A

 

18. Authorization tables contain highly sensitive data and should be protected by stringent security rules. | Database Administration Mcqs

A. True

B. False

Answer: A

 

19. A transaction log shows before and after images of records that have been modified by transactions. | Database Administration Mcqs

A. True

B. False

Answer: B

 

20. The greatest threat to business security is often internal rather than external. | Database Administration Mcqs

A. True

B. False

Answer: A

 

21. Information repositories are replacing data dictionaries in many organizations.

A. True

B. False

Answer: A

 

22. Mirrored databases are almost always provided in high-availability systems.

A. True

B. False

Answer: A

 

23. Databases are not the property of a single function or individual within the organization.

A. True

B. False

Answer: A

 

24. Queries that do full table scans should be avoided.

A. True

B. False

Answer: A

 

25. The restore/rerun technique involves reprocessing the day's transactions up to the point of failure.

A. True

B. False

Answer: A

 

26. Backward recovery is used to reverse the changes made by transactions that have aborted, or terminated abnormally.

A. True

B. False

Answer: A

 

27. A disaster recovery plan does not need to include the shipment of database backups to other sites.

A. True

B. False

Answer: B

 

28. With concurrent processing involving updates, a database with concurrency control will be compromised due to interference between users.

A. True

B. False

Answer: B

 

29. Data modeling and database design are key responsibilities of data and data base administration.

A. True

B. False

Answer: A

 

30. Incorrect data is easy to detect.

A. True

B. False

Answer: B

 

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