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. No Transitive Dependencies.






2. Many-to-many relationships occur when each record in TableA may have 0 - 1 or many linked records in TableB and vice-versa.






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






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






5. The dominant database model






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






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






8. 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).






9. 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.






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






11. Functional dependency involving only non-key attributes.






12. An action query that adds the records in a query's result set to the end of an existing table.






13. A database computer language designed for the retrieval and management of data in relational database management systems (RDBMS) - database schema creation and modification - and database object access control management.






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






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






16. 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.






17. Table has no anomalies.






18. A relational database management system from Microsoft that combines the relational MS Jet Database Engine with a graphical user interface and software-development tools.






19. 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.






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






21. No multiple multi-valued dependencies.






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






23. One (or more fields) in a table that refer to the primary key in another table.






24. Knowingly violates one or more rules of normalization.






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






26. Attribute that determines the value of another attribute.






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






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






29. 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.






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






31. An MS Access tool that simplifies a task. For example - you can quickly create a complex expression with the Expression Builder.






32. A data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships: each parent can have many children - but each child has only one parent






33. The program which is used to organize - access and manage the data in a database - Creates - processes - and administers databases.






34. No partial functional-dependencies.






35. A collection of fields that together describe one entity.






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






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






38. An operator used to compare two values or expressions; For example - < (less than) - > (greater than) - = (equal to)






39. In an access databse - a window in which you work with tables in design view or datasheet view.






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






41. This is a property of data which - when satisfied - requires every value of one field (attribute) of a table to exist as a value of another field in another related table.






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






43. 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.






44. A field data type that automatically stores a unique number for each record as it is added to a table.






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






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






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






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






49. 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 of one and only one record in the related table.






50. All key attributes defined - attributes depend on key and no repeating groups.