Data and Database Administration

1.	Poor data administration can lead to which of the following?
	A. A single definition of the same data entity B. Familiarity with existing data C. Missing data elements D. All of the above.

2.	A traditional data administrator performs which of the following roles?
	A. Tune database performance B. Establish backup and recovery procedures C. Resolve data ownership issues D. Protect the security of the database.

3.	If both data and database administration exist in an organization, the database administrator is responsible for which of the following?
	A. Data modeling B. Database design C. Metadata D. All of the above.

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

5.	Backward recovery is which of the following?
	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

6.	The transaction log includes which of the following?
	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

7.	Which of the following could cause data to be unavailable?
	A. Data becoming lost or inaccurate B. The database server C. Planned database maintenance activities D. All of the above.

8.	A shared lock allows which of the following types of transactions to occur?
	A. Delete B. Insert C. Read D. Update

9.	Locking may cause which of the following problems?
	A. Erroneous updates B. Deadlock C. Versioning D. All of the above.

10.	Performance analysis and tuning is which of the following?
	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