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 relation that contains no multivalued attributes.






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






3. 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






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






5. 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.






6. No Transitive Dependencies.






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






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






9. A combination of attributes that can be used to uniquely identify a database record. Candidate keys are a special subset of super keys that do not have any extraneous information in them






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






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






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






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






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






15. 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






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. The dominant database model






18. 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.






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






20. 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.






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






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






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






24. 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






25. 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.






26. No multiple multi-valued dependencies.






27. 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.






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






29. DOC MADE UP






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






31. 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.






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






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






34. A control - also called an edit field - used on a form - report or data access page to display text or accept data entry.It can have a label attached to it.






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






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






37. Dependency where determinant determines a list of values.






38. No partial functional-dependencies.






39. 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.






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






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






42. A database object that prints information formatted and organised according to your specifications.






43. 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.






44. 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.






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. 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.






47. 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.






48. A control that indicates whether an option is selected or not. A tick mark appears in the box when the option is selected.






49. 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).






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