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Test your basic knowledge |
Database Management
Start Test
Study First
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 graphical representation of any portion of a database scheme.
Foreign Key
One-To-One Relationship
Database Diagram
Entities
2. The persons or things that a database table is about.
Autonumber
Data
Entities
View
3. 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.
Calculated Field
Object-Oriented Database
Group
Column
4. A collection of fields that together describe one entity.
Data Sheet
Third Normal Form
Multi-valued Dependency
Record
5. 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.
Database Management System (DBMS)
Data Definiton Language
Criteria
One-To-One Relationship
6. The process of organizing data to minimize redundancy and produce smaller - well-structured relations/tables.
Database Management System (DBMS)
One-To-Many Relationship
Super key
Normalization
7. Contents of a Database: Tables of user data - Metadata - Indexes - Stored Procedures - _______ - Security Data - Backup/Recovery Data
Recursive Dependency
Access 2007
Triggers
Functional Dependency
8. A query that removes records which match the criteria you specify from one or more tables
Sort
Calculated Field
Delete Query
Compound Key
9. A graphical representation of all entity relationships (Data Model)
Entity Relationship Diagram
Transitive Dependency
Database
Second Normal Form
10. A function such as sum - count or average that you use to include summary data in a report.
Many-to-many Relationship
Second Normal Form
Aggregate Function
Flat File
11. 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.
Schema
SQL
Column
Database Window
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.
Data Model
Hierarchical Database
Third Normal Form
First Normal Form
13. When a relation is not just in Boyce-Codd Normal Form - but also contains at most one multivalued dependency.
Database Management System (DBMS)
Entity Relationship Diagram
Fourth Normal Form
Data Manipulation Language
14. The DML statement used to choose data from a database. The result is stored in a temporary table - called the result-set.
Criteria
Data
Data Warehouse
Select
15. A field data type that automatically stores a unique number for each record as it is added to a table.
Append Query
Key
Autonumber
Referential Integrity Constraint
16. A record as seen in the data sheet view.
Entity Relationship Diagram
Row
Record
Alternate Key
17. A relational database management system from Microsoft that combines the relational MS Jet Database Engine with a graphical user interface and software-development tools.
Third Normal Form
Aggregate Function
Access 2007
Trigger
18. 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
Database Management System (DBMS)
Hierarchical Database
Design Vie
Secondary Key
19. A key that consists of 2 or more attributes that uniquely identify an entity occurrence.
Column
First Normal Form
Transact
Compound Key
20. No Transitive Dependencies.
Third Normal Form
Data Warehouse
One-To-One Relationship
First Normal Form
21. A query ( SQL statement ) that creates a new table and then creates records in it by coping records from an existing table.
Make Table Query
Triggers
Data Mining
Referential Integrity
22. An attribute utilized to sort and/or identify data in some manner. Each table should have a primary key which uniquely identifies records.
Autonumber
Row
Key
Comparison Operator
23. 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.
Second Normal Form
SQL View
Report
Secondary Key
24. Guidelines set in place to ensure the trustworthiness of data over its entire life cycle.
Self-Join
Text Box
Criteria
Data Integrity Rules
25. Dependency where determinant determines a list of values.
Select
Third Normal Form
Index
Multi-valued Dependency
26. A location within a database table that stores one particular type of data i.e. a field
Column Selector
View
Column
Autonumber
27. Refers to the number of associations that can exist between two record types.
Data Model
Functional Dependency
Secondary Key
Cardinality
28. A database object that stores data in records and fields. The data is usually about a particular category of things.
Table
Fourth Normal Form
Compound Key
Triggers
29. An operator used to compare two values or expressions; For example - < (less than) - > (greater than) - = (equal to)
Transitive Dependency
Database Diagram
Comparison Operator
Relational Database Model
30. Specialized engines designed specifically to store objects. Users can interact with objects only through designated methods.
Hierarchical Database
Third Normal Form
SQL
Object-Oriented Database
31. 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.
Schema
Compound Key
Second Normal Form
SQL
32. A type of computer file system that stores all data in a single file.
Key
Flat File
Join
Third Normal Form
33. A value that is automatically entered in a field or control when you add a new record.
Normalization
Trigger
Triggers
Default Value
34. Table has no anomalies.
Data Mining
Table
Domain/Key Normal Form
Record
35. The part of an SQL statement that specifies which record to retrieve.
Where clause
Recursive Dependency
Self-Join
Compound Key
36. A normalization which falls between 3NF and 4NF and involves the elimination of non-trivial dependencies
View
Data Definiton Language
Boyce-Codd Normal Form
Data
37. A relation that contains no multivalued attributes.
Schema
Table
Group
First Normal Form
38. 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.
Candidate Key
Data Type
View
Relational Database Model
39. All determinants are candidate keys.
Boyce-Codd Normal Form
Hierarchical Database
Super key
Third Normal Form
40. A value that may be assigned to an attribute when no other value applies or when the applicable value is unknown.
Normalization
Null
Access 2007
Super key
41. Data about data.
Tuple
Data Model
Metadata
Append Query
42. The dominant database model
Boyce-Codd Normal Form
Data Definiton Language
Relational Database Model
First Normal Form
43. Data from a table - form - query which is displayed in a row-and-column format.
Data Type
Schema
Foreign Key
Data Sheet
44. No multiple multi-valued dependencies.
Primary Key
Delete Query
Many-to-many Relationship
Fourth Normal Form
45. An association between two tables in which several records in one table can relate to 0 - 1 or many records in the other table.
Many-to-many Relationship
Numeric Data Type
Where clause
Fourth Normal Form
46. The actual pieces of facts that are stored in the fields in a database table.
Data
Query
Third Normal Form
Referential Integrity Constraint
47. A window that shows the design or structure of the database objects: tables - queries - forms - reports - macros and data access pages.
Third Normal Form
Currency Data Type
Design Vie
Candidate Key
48. The components of a data abase i.e. tables - queries - forms - reports - pages - macros and modules.
Data Integrity Rules
Database Object
Third Normal Form
Compound Key
49. 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
Column Selector
Transitive Dependency
Join
Database
50. The program which is used to organize - access and manage the data in a database - Creates - processes - and administers databases.
Database Management System (DBMS)
Table
Third Normal Form
Data Type