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






2. 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






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






4. A self-describing collection of integrated tables. The tables are called integrated because they store data about the relationships between the rows of data.






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






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






7. All determinants are candidate keys.






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






9. 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.






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






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






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






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






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






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






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






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






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






19. A characteristic of a field that determines what kind of data it can store and what type of operations can be performed on it.






20. 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.






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






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






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






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






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






26. No Transitive Dependencies.






27. A Key composed of more than one attribute.






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






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






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






31. 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).






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






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






34. 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.






35. 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.






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






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






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






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






40. 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.






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






42. 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






43. 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.






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






45. 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.






46. 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.






47. Attribute that determines the value of another attribute.






48. 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.






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






50. 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.







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