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






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






3. 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.






4. DOC MADE UP






5. 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).






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






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






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






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






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






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






12. 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






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






14. 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.






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






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






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






18. Table has no anomalies.






19. Dependency where determinant determines a list of values.






20. 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.






21. A Key composed of more than one attribute.






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






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






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






26. 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.






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






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






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






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






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






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






33. 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






34. 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.






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






36. 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.






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






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






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






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






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






43. The dominant database model






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






45. No Transitive Dependencies.






46. 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.






47. Functional dependency involving only non-key attributes.






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






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






50. 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.