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






2. The components of a data abase i.e. tables - queries - forms - reports - pages - macros and modules.






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






4. No multiple multi-valued dependencies.






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






6. 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.






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






8. A database object on which you place controls for entering - displaying and editing records in a table.






9. The persons or things that a database table is about.






10. A candidate key that coud have been the primary key but was not selected as such ; OR a field that is not the primary key but has been used for indexing nevertheless.






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






12. A field in a table with unique values that although it is not the primary key - it could have been used as such.






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






14. Functional dependency involving only non-key attributes.






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






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






17. A feature that speeds up searching and sorting in a table based on key values and can enforce uniqueness on the rows of a table.






18. A data type that is used for fields and calculations involving money






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






20. 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.






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






22. A window that shows the design or structure of the database objects: tables - queries - forms - reports - macros and data access pages.






23. A Key composed of more than one attribute.






24. Relations which allow you to retrieve related records from the same table.






25. No partial functional-dependencies.






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






27. A primary key that is comprised of more than one field.






28. Knowing the value of one attribute you can determine the value of another attribute.






29. Stored procedures that may be configured to automatically execute (fire) when certain events take place.






30. A type of computer file system that stores all data in a single file.






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






32. 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.






33. A referential integrity constraint is a statement that limits the values of the foreign key to those already existing as primary key values in the corresponding table.






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






35. A way of looking at a database object - usually looking at the design or at the contents/results






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






37. Knowingly violates one or more rules of normalization.






38. One or more fields whose values uniquely identify each record in a table.






39. No Transitive Dependencies.






40. The process of examining and analyzing data with a view to extracting patterns from it. It is usually done on data warehouses






41. A graphical representation of all entity relationships (Data Model)






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






43. A characteristic of a field that determines what kind of data it can store and what type of operations can be performed on it.






44. 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.






45. The actual pieces of facts that are stored in the fields in a database table.






46. A field - set up in a query - that displays the result of an evaluated expression rather than displaying stored data.The value of the calculated field is re-calculated each time a value in the expression changes.






47. That structure which contains description of objects created by a user - such as base tables - views and constraints - as a part of a database.






48. Guidelines set in place to ensure the trustworthiness of data over its entire life cycle.






49. A value that may be assigned to an attribute when no other value applies or when the applicable value is unknown.






50. 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.