Test bank for concepts of database management 10th edition lisa friedrichsen joseph j adamski lisa r

Test Bank for Concepts of Database Management, 10th Edition, Lisa Friedrichsen, Joseph J. Ad

Test Bank for Concepts of Database Management, 10th Edition, Lisa Friedrichsen, Joseph J. Adamski, Lisa Ruffolo, Ellen Monk, Joy L. Starks Philip J. Pratt Mary Z. Last To download the complete and accurate content document, go to: https://testbankbell.com/download/test-bank-for-concepts-of-database-management-1 0th-edition-lisa-friedrichsen-joseph-j-adamski-lisa-ruffolo-ellen-monk-joy-l-starks-philip -j-pratt-mary-z-last/

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Module 06 - Database Design: Relationships True / False 1. Information-level design is independent of any particular DBMS that the organization will ultimately use. a. True b. False ANSWER: True POINTS: 1 DIFFICULTY: Moderate REFERENCES: Introduction QUESTION TYPE: True / False LEARNING OBJECTIVES: CDBM.PRAT.21.06.01 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 2. Access uses Database Design Language (DBDL) to diagram relationships in the Relationship report. a. True b. False ANSWER: False POINTS: 1 DIFFICULTY: Moderate REFERENCES: Documenting a Relational Database Design QUESTION TYPE: True / False LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Remember 3. When the Unique property for an index is set to Yes in Access, every value in the index must be unique. a. True b. False ANSWER: True POINTS: 1 DIFFICULTY: Easy REFERENCES: Setting Keys and Indexes QUESTION TYPE: True / False LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Remember 4. An E-R diagram uses diamonds to illustrate relationships between tables. a. True b. False ANSWER: False POINTS: 1 DIFFICULTY: Easy REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: True / False LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships KEYWORDS:

Bloom’s: Remember

5. When referential integrity is enforced on a one-to-many relationship in Access, you may not delete a record in the “one” table that has related records in the “many” table. a. True b. False ANSWER: True POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: True / False LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand Multiple Choice 6. A user view of data is _____. a. a table created by a particular user b. a report requested by users c. the specific data needed by a person or process for a particular task d. a form used for data entry ANSWER: c POINTS: 1 DIFFICULTY: Moderate REFERENCES: User Views QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.01 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 7. When you build a relational database for an organization, what is a good starting point for identifying required user views? a. Collect the organization’s forms and reports. b. Video each user. c. Conduct a detailed survey. d. Attend staff meetings.

ANSWER: a POINTS: 1 DIFFICULTY: Moderate REFERENCES: User Views QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.01 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 8. Building the entities, attributes, constraints, and relationships in a particular RDBMS is called the _____.

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Module 06 - Database Design: Relationships a. information-level design b. conceptual design c. entity-relationship (E-R) design d. physical-level design ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Introduction QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.01 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 9. During which process do you typically create an entity-relationship (E-R) diagram? a. physical-level design b. troubleshooting user views c. information-level design d. maintenance ANSWER: c POINTS: 1 DIFFICULTY: Moderate REFERENCES: Introduction QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.0 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 10. Which of the following items is not identified in relational database design documentation? a. primary key field for each entity b. possible user views for each entity c. proper one-to-many relationships between the entities d. attributes needed for each normalized entity ANSWER: b POINTS: 1 DIFFICULTY: Easy REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Understand 11. A(n) _____ is a field that contains unique data for each record in the table but is not used as the primary key field for security or other reasons. a. alternate key b. secondary key c. associate key Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships d. backup key ANSWER: a POINTS: 1 DIFFICULTY: Easy REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Remember 12. A(n) _____ represents a field or combination of fields that may not be unique, but is commonly used for retrieval and thus should be indexed. a. alternate key b. combo key c. secondary key d. indexed key ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Understand 13. In Database Design Language (DBDL), which items do you underline? a. table names b. columns that make up the foreign key c. data types d. columns that make up the primary key ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Remember 14. In the following Database Design Language (DBDL) notation, what does SK stand for?

Employees (EmpID, LastName, FirstName, SSN, DeptNum) AK SSN SK LastName, FirstName FK DeptNum à Departments a. subkey Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships b. start key c. SQL key d. secondary key ANSWER: d POINTS: 1 DIFFICULTY: Moderate REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Understand 15. Which field in a table does Access index by default? a. primary key field b. any numeric field c. first field in the table d. foreign key field ANSWER: a POINTS: 1 DIFFICULTY: Easy REFERENCES: Setting Keys and Indexes QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Understand 16. Which of the following fields would you most likely index but set the index’s Unique property to No? a. EmployeeID b. StreetAddress c. OfficeNumber d. LastName ANSWER: d POINTS: 1 DIFFICULTY: Moderate REFERENCES: Setting Keys and Indexes QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Apply 17. ProductType is a foreign key field in the Orders table and is constrained to a list of valid entries stored in the ProductTypes table. What problem does this design prevent? a. creation anomalies b. deletion anomalies c. update anomalies d. record locking Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Setting Keys and Indexes QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Understand 18. Which fields should you index in a table? a. every field b. fields that are commonly used for sorting c. fields that contain sensitive data d. fields that are not part of a relationship ANSWER: b POINTS: 1 DIFFICULTY: Easy REFERENCES: Setting Keys and Indexes QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Understand 19. What is the purpose of an index? a. to show which database objects depend on each other b. to identify primary, secondary, and alternate keys c. to improve database performance when queries request a sort order for records d. to store unique data for each record in the table ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Setting Keys and Indexes QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.03 - Determine relationships and set primary and foreign keys KEYWORDS: Bloom’s: Understand 20. What shape does an E-R diagram use to represent entities? a. rectangle b. oval c. triangle d. diamond ANSWER: a POINTS: 1 DIFFICULTY: Easy REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Multiple Choice Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually represent a database design KEYWORDS: Bloom’s: Remember 21. In a database for a health care clinic, a medical specialty is listed only once in the Specialties table, but each specialty may be linked to many doctors in the Doctors table. What type of relationship do the Specialties and Doctors tables have? a. one to many b. one to one c. many to one d. many to many ANSWER: a POINTS: 1 DIFFICULTY: Easy REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually represent a database design KEYWORDS: Bloom’s: Understand 22. Which of the following tools does not help you document relationships between tables? a. Database Design Language b. user views c. entity-relationship diagram d. entity-relationship model ANSWER: b POINTS: 1 DIFFICULTY: Easy REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually represent a database design KEYWORDS: Bloom’s: Understand 23. Which of the following is a type of E-R diagram? a. Access Database Documenter b. crow’s foot notation c. entity tree notation d. Database Design Language (DBDL) ANSWER: b POINTS: 1 DIFFICULTY: Moderate REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually represent a database design Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships KEYWORDS:

Bloom’s: Remember

24. How does the Access Relationships window indicate the “many” field in a one-to-many relationship? a. ring and crow’s foot b. number 1 c. filled circle d. infinity symbol ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually represent a database design KEYWORDS: Bloom’s: Remember 25. In an entity-relationship model (ERM), what does a diamond represent? a. the “one” part of the relationship b. the “many” part of the relationship c. the relationship d. an entity ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: The Entity-Relationship Model (ERM) QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design KEYWORDS: Bloom’s: Remember 26. In an entity-relationship model (ERM) for a many-to-many relationship, what do you call the middle entity that links two other tables? a. linking entity b. composite entity c. consolidated entity d. secondary entity ANSWER: b POINTS: 1 DIFFICULTY: Moderate REFERENCES: The Entity-Relationship Model (ERM) QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design KEYWORDS: Bloom’s: Remember Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships 27. Because you cannot directly create a many-to-many relationship between two tables, what must you create to link the tables together? a. junction table b. entity-relationship diagram c. Cartesian join d. secondary table ANSWER: a POINTS: 1 DIFFICULTY: Easy REFERENCES: The Entity-Relationship Model (ERM) QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design KEYWORDS: Bloom’s: Remember 28. In an entity-relationship model (ERM), what information appears in ovals? a. entities b. attributes c. relationships d. dependencies ANSWER: b POINTS: 1 DIFFICULTY: Easy REFERENCES: The Entity-Relationship Model (ERM) QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design KEYWORDS: Bloom’s: Remember 29. The E-R model (ERM) represents entities, attributes, and _____. a. indexes b. views c. properties d. relationships ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: The Entity-Relationship Model (ERM) QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.05 - Create entity-relationship models (ERMs) to visually represent a database design KEYWORDS: Bloom’s: Understand 30. In Access Table Datasheet View, how can you display the records from a related table? a. Click the Lookup button on the ribbon.

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Module 06 - Database Design: Relationships b. Click the Related Records button on the ribbon. c. Right-click a field and then click Relationships on the shortcut menu. d. Click the expand button to expand a subdatasheet.

ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Remember 31. Which properties do you set to display a list of possible values that are helpful when you enter or update data in a foreign key field? a. Indexed properties b. Lookup properties c. Foreign Key List properties d. Subdatasheet properties ANSWER: b POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Remember 32. What can you create in Access to show data in a single record and all its related records? a. one-to-one relationship b. lookup reports c. form and subform d. related user views ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Understand 33. A one-to-many relationship with _____ means that a record in the parent table must be established before a related record in the child table can be entered. a. cardinality b. access restrictions Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships c. referential integrity d. alternate keys ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Understand 34. Which of the following is not true about one-to-many relationships? a. The linking field in the “one” table is always the primary key field for that table. b. A foreign key field cannot also be the primary key field for a particular table. c. The linking field must have the same name in the primary and related tables. d. One record in the “one” table can be linked or related to many records in the “many” table.

ANSWER: c POINTS: 1 DIFFICULTY: Easy REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Understand 35. A query includes the DeptID and DeptName fields from the Departments table and the EmployeeLast field from the Employees table. Both tables are shown below. What must you change before you can reassign the DeptID field value for a particular employee in the query results?

Departments (DeptID, DeptName) Employees (EmpID, EmployeeFirst, EmployeeLast, DeptID) a. Set DeptID as the primary key field in the Employees table. b. Add the DeptName field to the query. c. Remove the EmpID field from the query. d. Replace the DeptID field from the Departments table with the DeptID field from the Employees table.

ANSWER: d POINTS: 1 DIFFICULTY: Difficult REFERENCES: Working with One-to-Many Relationships in Query Datasheet View QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand 36. A query includes the DeptID and DeptName fields from the Departments table and the EmployeeLast field from the Employees table. Both tables are shown below. What happens when you update the DeptName field value for an employee?

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Module 06 - Database Design: Relationships Departments (DeptID, DeptName) Employees (EmpID, EmployeeFirst, EmployeeLast, DeptID) a. Access displays an error message and does not accept the update. b. The DeptName field value changes for all employees in that department. c. The DeptName field value changes for that one employee only. d. Access changes the DeptID field value in the same record.

ANSWER: b POINTS: 1 DIFFICULTY: Difficult REFERENCES: Working with One-to-Many Relationships in Query Datasheet View QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand 37. Which of the following statements is not true about primary key fields? a. The primary key field must participate in a one-to-many relationship. b. The primary key field contains unique data for each record in the table. c. The primary key field is automatically indexed. d. The primary key field is the linking field in the table on the “one” side of a one-to-many relationship.

ANSWER: a POINTS: 1 DIFFICULTY: Moderate REFERENCES: Working with One-to-Many Relationships in Query Datasheet View QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand 38. Which of the following Access features does not demonstrate the power of one-to-many relationships? a. select queries involving related tables b. forms with subforms c. subdatasheets d. indexes ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Working with One-to-Many Relationships in Query Datasheet View QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand 39. Which of the following Access features provides a drop-down list of values for a field? a. subdatasheet Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships b. lookup field c. subform d. Relationship report ANSWER: b POINTS: 1 DIFFICULTY: Moderate REFERENCES: Working with One-to-Many Relationships in Query Datasheet View QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.07 - Explore ways that one-to-many relationships work in Access KEYWORDS: Bloom’s: Understand 40. What type of relationship do two tables have when their primary keys match? a. one-to-one b. one-to-many c. many-to-many d. many-to-one ANSWER: a POINTS: 1 DIFFICULTY: Moderate REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand 41. Which of the following is a valid reason for creating a one-to-one relationship between two tables? a. One table would otherwise not participate in a relationship. b. The tables create a Cartesian join. c. The tables are rarely updated. d. Data needs to be imported from separate sources.

ANSWER: d POINTS: 1 DIFFICULTY: Moderate REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand 42. When two tables in a query share no common fields, each record in one table connects to each record in the other table, creating a(n) _____. a. many-to-many relationship b. one-to-one relationship c. outer join Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships d. Cartesian join ANSWER: d POINTS: 1 DIFFICULTY: Easy REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand 43. A query creates a Cartesian join between one table with 5 records and another table with 20 records. How many records are displayed in the results? a. 100 b. 25 c. 15 d. 4 ANSWER: a POINTS: 1 DIFFICULTY: Moderate REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand 44. How might you resolve an inappropriate Cartesian join? a. Convert the join type to a RIGHT join. b. Connect the two tables through a third junction table. c. Convert the join type to a LEFT join. d. Change the query to an update query.

ANSWER: b POINTS: 1 DIFFICULTY: Moderate REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand 45. A _____ serves on the “many” side of a one-to-many relationship with each of two other tables. a. secondary key b. junction table c. lookup table d. connecting table ANSWER: b Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships POINTS: 1 DIFFICULTY: easy REFERENCES: Other Relationship Types QUESTION TYPE: Multiple Choice LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Remember Essay 46. Explain the difference between information-level design and physical-level design.

During information-level design, you list the attributes needed for each entity and describe ANSWER: the relationships between the entities based on business rules, typically using an entityrelationship (E-R) diagram to visually represent the database design. During physical-level design, you implement the entities, attributes, constraints, and relationships in an RDBMS. POINTS: 1 RUBRIC: 10 0 Criteria Pts The answer describes the tasks of information-level design: list the attributes needed for each entity and describe the relationships between the entities based on business rules.

5

The answer also describes the tasks of physical-level design: implementing the entities, attributes, constraints, and relationships.

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Your Score

DIFFICULTY: Moderate REFERENCES: Introduction QUESTION TYPE: Essay LEARNING OBJECTIVES: CDBM.PRAT.21.06.01 - Define the process and goals of database design KEYWORDS: Bloom’s: Remember 47. Describe the different types of keys illustrated in Database Design Language (DBDL) and how they are notated.

The primary key field contains unique data for each record and is underlined in the ANSWER: notation. An alternate key is a field that contains unique data for each record in the table but is not used as the primary key field for security or other reasons. An alternate key is identified by the abbreviation AK. A secondary key represents a field or combination of fields that may not be unique, but is commonly used for retrieval and thus should be indexed. A secondary key is identified by the abbreviation SK. A foreign key field is identified as FK and is used to connect a record in one table to more information in another table.

POINTS: 1 RUBRIC: 12 0 Criteria Pts The answer includes four types of keys—primary key, alternate key, secondary key, and foreign key— with the following definitions and Copyright Cengage Learning. Powered by Cognero.

Your Score

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Module 06 - Database Design: Relationships notations.

The primary key field contains unique data for each record and is underlined in the notation.

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An alternate key is notated as AK and is a field that contains unique data for each record in the table but is not used as the primary key field for security or other reasons.

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A secondary key is notated as SK and represents a field or combination of fields that may not be unique, but is commonly used for retrieval.

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A foreign key field is notated as FK and is used to connect a record in one table to more information in another table.

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DIFFICULTY: Difficult REFERENCES: Documenting a Relational Database Design QUESTION TYPE: Essay LEARNING OBJECTIVES: CDBM.PRAT.21.06.02 - Describe the data using Database Design Language (DBDL) KEYWORDS: Bloom’s: Understand 48. Define the types of cardinality in a database and explain the cardinality of primary keys and foreign keys.

In a database, cardinality refers to the uniqueness of data values contained in a single field.

ANSWER: High cardinality means that a field contains many unique or uncommon values. Low cardinality means that a field contains only a few unique values.

A primary key field has high cardinality because all values in the field are, by definition, unique. Foreign key fields have low cardinality because they are specifically created to allow for repeating values.

POINTS: 1 RUBRIC: 16 0 Criteria Pts The answer defines cardinality as the uniqueness of data values contained in a single field.

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The answer defines high cardinality as many unique or uncommon values.

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The answer defines low cardinality as only a few unique values.

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The answer explains that a primary key field has high cardinality because all values in the field are, by definition, unique.

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The answer explains that a foreign key field has low cardinality because it is specifically created to allow for repeating values.

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Your Score

DIFFICULTY: Difficult REFERENCES: Entity-Relationship (E-R) Diagrams QUESTION TYPE: Essay LEARNING OBJECTIVES: CDBM.PRAT.21.06.04 - Create entity-relationship (E-R) diagrams to visually Copyright Cengage Learning. Powered by Cognero.

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Module 06 - Database Design: Relationships

KEYWORDS:

represent a database design Bloom’s: Understand

49. How could you determine the relationship between a table of Consultants and a table of Projects at a consulting firm?

Work with the consulting firm to determine the business rules for consultants and projects.

ANSWER: If every project used a single consultant, then the relationship would be a direct one-tomany relationship between the Consultants and Projects tables. If one project had many consultants and each consultant could participate in many projects, you would need to create a junction table to establish a many-to-many relationship between the Projects and Consultants tables.

POINTS: 1 RUBRIC: 15 0 Criteria Pts The answer indicates that you must first determine the business rules at the consulting firm before making a decision about relationships. The business rules determine the relationship as follows.

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If every project used a single consultant, then the relationship would be a direct one-to-many relationship between the Consultants tables and Projects tables.

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If one project had many consultants and each consultant could participate in many projects, you would need to create a junction table to establish a manyto-many relationship between the Projects and Consultants tables.

5

Your Score

DIFFICULTY: Moderate REFERENCES: Exploring One-to-Many Relationships in Access QUESTION TYPE: Essay LEARNING OBJECTIVES: CDBM.PRAT.21.06.06 - Implement one-to-many relationships and relationship constraints KEYWORDS: Bloom’s: Apply 50. How would you set up a relationship between a table of Books and a table of Authors in a relational database?

One book can have many authors and one author can write many books, so the two tables ANSWER: have a many-to-many relationship. To set up this relationship in a relational database, you would need to create a junction table with fields that could serve as the common fields on each “many” side of a one-to-many relationship to the Books and Authors tables.

POINTS: 1 RUBRIC: 15 0 Criteria Pts The answer explains that because one book can have many authors and one author can write many books, the two tables have a many-to-many relationship.

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The answer mentions that you need to set up a junction table to

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Your Score

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Test Bank for Concepts of Database Management, 10th Edition, Lisa Friedrichsen, Joseph J. Ad

Module 06 - Database Design: Relationships create the many-to-many relationship.

The answer explains that the junction table should have fields that could serve as the common fields on each “many” side of a one-to-many relationship to the two tables.

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DIFFICULTY: Difficult REFERENCES: Other Relationship Types QUESTION TYPE: Essay LEARNING OBJECTIVES: CDBM.PRAT.21.06.08 - Discuss special issues related to one-to-one and manyto-many relationships KEYWORDS: Bloom’s: Understand

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