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 Key composed of more than one attribute.






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






3. Knowingly violates one or more rules of normalization.






4. 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.






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






6. No multiple multi-valued dependencies.






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






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






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. 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






11. No Transitive Dependencies.






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






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






14. No partial functional-dependencies.






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






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






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






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






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






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






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






23. 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






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






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






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






27. 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.






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






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






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






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






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






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






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






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






36. A query that displays a summary calculation - such as an average or a sum - for values in a table or tables. A totals query is not a seperate kind of query; rather it extends the flexibility of select queries.






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






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






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






40. A section of a record containing data relating to one single characteristic of an entity; also called an attribute






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






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






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






44. A window that displays the SQL statement for the current query or is used to create a SQL specific query. When you create a query in design view - Access constructs the SQL equivalent in the SQL view.






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






47. 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.






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






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






50. Dependency where determinant determines a list of values.