Penn Foster 418866 / 418866RR – Perfect Solution

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Problem Statement

Exam: 418866RR – Database Types, Functions, Requirements/Rules, and Design
When you have completed your exam and reviewed your answers, click Submit Exam. Answers will not be recorded until you
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Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page
break, so be sure that you have seen the entire question and all the answers before choosing an answer.
1. In a relational database, entities are defined by
A. rows.
B. columns.
C. attributes.
D. values.
2. Which type of entity describes a fundamental business aspect of a database?
A. Domain
B. Linking
C. Lookup
D. Weak
3. The basic idea for relational databases was developed by Edgar Codd, who was a researcher for what
company?
A. Bell Labs
B. IBM
C. AT&T
D. Siemens
4. What Microsoft program is frequently used to develop pictorial representations of a database’s logical
relationships?
A. Visio
B. Excel
C. Word
D. Access
5. What relationship does a data warehouse have to an organization’s data?
A. A data warehouse holds only the live version of the data.
B. A data warehouse holds all of the data.
C. A data warehouse holds only customer-related data.
D. A data warehouse holds only backup copies of the data.
6. After an informative session, you find yourself with several pages of notes. For maximum retention and
understanding, you should go over your notes within _______ hours.
A. 8
B. 48
C. 24
D. 12
7. Which type of relationship is logically supported but can’t be represented by Visio or any database
modeling process?
A. One-to-one
B. Pair of one-to-many relationships
C. One-to-many
D. Many-to-many
8. Your project specifications call for a business rule that the database design can’t enforce. What tool
should you use to enforce this business rule?
A. Trigger
B. Exception
C. Lookup entity
D. Weak entity
9. To capture the actual flow of data in a day-to-day business environment, which information-gathering
method would you most likely use?
A. Questionnaires
B. Review of business documents
C. Interviews
D. Work shadowing
10. Which commercial RDBMS product was the first to hit the market and is the biggest?
A. MySQL
B. Access
C. Oracle
D. SQL Server
11. If creating a many-to-many relationship in your database, what must you include to prevent the
database from failing due to unresolved relationships?
A. Lookup entity
B. Parent entity
C. Linking entity
D. Child entity
12. _______ refers to a set of tools for analyzing trends and patterns in business data.
A. Transaction
B. Business intelligence
C. Database management
D. MIS
13. Which technology is the basis for XML?
A. ASCII
B. Data mining
C. Unicode
D. HTTP
14. Which type of documentation should go inside your data dictionary?
A. List of budget committee members
B. List of personnel working on the project
C. List of software applications used
D. List of columns and data types
15. You’re mapping out the logical relations of a database, and you notice that one of your tables will have
a pair of child records for every record created in the parent entity. What type of relationship do these
tables have?
A. Many-to-many
B. One-to-many
C. Pair of one-to-many relationships
D. One-to-one
16. A guideline that defines how the data in a database is processed is known as what?
A. Object
B. Business rule
C. Data dictionary
D. Requirement
17. The problem domain refers to the _______ the database is meant to fix.
A. support options
B. business problem
C. input data
D. output data
18. Which type of electronic database is the simplest?
A. Network
B. Hierarchical
C. Relational
D. Flat file
19. What aspect of the initial database planning process would the formula (0 + Pt × 3 + p)/5 be used in?
End of exam
A. Workforce forecasting
B. Budgeting
C. Entity prediction
D. Time estimation
20. If a user can make modifications to database objects, what permission has that user been assigned?
A. Alter
B. Update
C. Create
D. Select

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