Test your basic knowledge |

Database Management

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A combination of attributes that can be used to uniquely identify a database record. Candidate keys are a special subset of super keys that do not have any extraneous information in them






2. An organised pool of related data files which can be easily accessed and managed and that may be used by a number of different application programs






3. A programming language designed for managing & obtaining data in relational database management systems (RDBMS)






4. A database object that stores data in records and fields. The data is usually about a particular category of things.






5. The horizontal bar at the top of a column. You can click a column selector to select the entire column in the query design grid or the filter design grid






6. A characteristic of the items in a database i.e. a field






7. A record as seen in the data sheet view.






8. The DBMS language component used to create - alter and destroy databases and database objects i.e. schemas - tables - views - sequences - catalogs - indexes - and aliases.






9. A query that asks a question about the data stored in your tables and returns a results set in the form of a data sheet without changing the actual data in the table(s).






10. Contents of a Database: Tables of user data - Metadata - Indexes - Stored Procedures - _______ - Security Data - Backup/Recovery Data






11. Two or more controls that can be treated as one unit while designing a form or report. You can select the group instead of selecting each individual control as you are arranging controls or assigning properties.






12. An abstract model that documents and organizes the business data for communication between team members and is used as a plan for developing applications - specifically how data is stored and accessed.






13. Specialized engines designed specifically to store objects. Users can interact with objects only through designated methods.






14. Knowingly violates one or more rules of normalization.






15. A table which is not only in 2NF but whose non-primary key fields are dependent only on the primary key and therefore have no dependence on (relationship to) any other non-primary key field in the table.






16. An association/link established between common fields in two different tables. A relationship can be one-to-one - many-to-many or more usually one-to-many.






17. The process of organizing data to minimize redundancy and produce smaller - well-structured relations/tables.






18. When a relation is not just in Boyce-Codd Normal Form - but also contains at most one multivalued dependency.






19. The window that appears when you open an Access database or an Access project. It displays the commands for creating new database objects and opening and manipulating existing objects.






20. Candidate key selected for use.






21. A control - also called an edit field - used on a form - report or data access page to display text or accept data entry.It can have a label attached to it.






22. A key that consists of 2 or more attributes that uniquely identify an entity occurrence.






23. This is an exact numeric data type that holds from 10^38 - 1 through 10^38 - 1.






24. A value that is automatically entered in a field or control when you add a new record.






25. The set of fields in a table which stores unique values and so any one from the list can be selected to be the primary key.






26. The dominant database model






27. DBMS (Database Management System) statements used to manage data (tables and other objects) within a database






28. No partial functional-dependencies.






29. Refers to the number of associations that can exist between two record types.






30. A central repository for databases across an entire enterprise.






31. A DBMS created by Microsoft - it is a collection of data and objects - such as tables - queries - or forms - related to a particular topic or purpose.






32. To modify a database - or the files associated with the database.






33. The part of an SQL statement that specifies which record to retrieve.






34. When a table is not only in 1NF but each non key field is functionally dependent on the full primary key






35. A normalization which falls between 3NF and 4NF and involves the elimination of non-trivial dependencies






36. Groups of database commands which are to be treated as a single atomic event.






37. A function such as sum - count or average that you use to include summary data in a report.






38. An association between two tables in which the primary key value of each record in the primary table corresponds to the value in the matching field or fields of0 - 1 - or many records in the related table.






39. Attribute that determines the value of another attribute.






40. A relation that contains no multivalued attributes.






41. An association between two tables in which several records in one table can relate to 0 - 1 or many records in the other table.






42. A Key composed of more than one attribute.






43. Data about data.






44. An attribute utilized to sort and/or identify data in some manner. Each table should have a primary key which uniquely identifies records.






45. A question about the data stored in your tables - or a request to perform an action on the data. A query can bring together data from multiple tables to serve as the source of data for a form. report or data access page.






46. Data from a table - form - query which is displayed in a row-and-column format.






47. Arrange the records in a view set in order according to a particular field






48. The DML statement used to choose data from a database. The result is stored in a temporary table - called the result-set.






49. A query that removes records which match the criteria you specify from one or more tables






50. A query ( SQL statement ) that creates a new table and then creates records in it by coping records from an existing table.