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. 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.






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






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






4. No multiple multi-valued dependencies.






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






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






7. Attribute that determines the value of another attribute.






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






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






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






11. Dependency where determinant determines a list of values.






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






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






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






16. An MS Access tool that simplifies a task. For example - you can quickly create a complex expression with the Expression Builder.






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






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






19. 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






20. 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.






21. Functional dependency involving only non-key attributes.






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






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






24. A link between two or more tables.






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






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






27. 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.






28. No partial functional-dependencies.






29. That structure which contains description of objects created by a user - such as base tables - views and constraints - as a part of a database.






30. DOC MADE UP






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






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






33. All determinants are candidate keys.






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






35. 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






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






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






38. A relation that contains no multivalued attributes.






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






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






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






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






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






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






45. Data about data.






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






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






48. 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.






49. 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.






50. Relations which allow you to retrieve related records from the same table.