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 graphical representation of any portion of a database scheme.






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






3. 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.






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






5. 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.






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






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






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






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






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






11. 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.






12. 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.






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






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






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






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






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






18. 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






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






20. No Transitive Dependencies.






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






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






23. 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.






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






25. Dependency where determinant determines a list of values.






26. A location within a database table that stores one particular type of data i.e. a field






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






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






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






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






31. 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.






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






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






34. Table has no anomalies.






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






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






37. A relation that contains no multivalued attributes.






38. 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.






39. All determinants are candidate keys.






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






41. Data about data.






42. The dominant database model






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






44. No multiple multi-valued dependencies.






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






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






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






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






49. 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






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