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 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.






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






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






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






5. A query that copies data or changes data in some way. This includes append - delete - make-table and update queries.






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






7. No multiple multi-valued dependencies.






8. 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






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. Table has no anomalies.






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






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






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






14. 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.






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






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






17. Attribute that determines the value of another attribute.






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






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






20. A link between two or more tables.






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






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






23. 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






24. No Transitive Dependencies.






25. The dominant database model






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






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






28. 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.






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






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






31. A graphical representation of any portion of a database scheme.






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






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






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






35. 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.






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






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






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






39. 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.






40. 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.






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






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






43. The conditional expession that is to be used to select particular data records from a larger set of records.






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






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






46. Dependency where determinant determines a list of values.






47. 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.






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






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






50. A graphical representation of entities and their relationship to each other - typically used in computing in regard to the organization of data within databases or information systems