Deck 4: Relational Databases

Question 1

The physical view of a database system refers to

A) how a user or programmer conceptually organizes and understands the data.
B) how the DBMS accesses data for a certain application program.
C) how and where the data are physically arranged and stored.
D) how master files store data values used by more than one application program.

Answer 1

C

Question 2

A set of individual user views of the database is called the

A) conceptual-level schema.
B) internal-level schema.
C) external-level schema.
D) meta-schema.

Answer 2

C

Question 3

The ________ handles the link between the way data are physically stored and each user's logical view of that data.

A) data warehouse
B) data dictionary
C) database management (DBMS) software
D) schema

Answer 3

C

Question 4

The combination of the database,the DBMS,and the application programs that access the database through the DBMS is referred to as the

A) data warehouse.
B) database administrator.
C) database system.
D) database manager.

Question 5

The ________ contains information about the structure of the database.

A) data definition language
B) data dictionary
C) data warehouse
D) database management system

Question 6

Using a file-oriented approach to data and information,data is maintained in

A) a centralized database.
B) many interconnected files.
C) many separate files.
D) a decentralized database.

Question 7

Which statement below concerning the database management system (DBMS)is false?

A) The DBMS automatically creates application software for users, based on data dictionary parameters.
B) The DBMS automatically maintains the data dictionary.
C) Users' requests for information are transmitted to the DBMS through application software.
D) The DBMS uses special languages to perform specific functions.

Question 8

Which statement is true regarding file systems?

A) Transaction files are similar to ledgers in a manual AIS.
B) Multiple master files create problems with data consistency.
C) Transaction files are permanent.
D) Individual records are never deleted in a master file.

Question 9

A low-level view of the database that describes how the data are actually stored and accessed is the

A) conceptual-level schema.
B) subschema.
C) internal-level schema.
D) external-level schema.

Question 10

The person responsible for the database is the

A) data coordinator.
B) database administrator.
C) database manager.
D) database master.

Question 11

The schema that provides an organization-wide view of the entire database is known as the

A) external-level schema.
B) internal-level schema.
C) conceptual-level schema.
D) logical view of the database.

Question 12

The ________ acts as an interface between the database and the various application programs.

A) data warehouse
B) database administrator
C) database management system
D) database system

Question 13

The data dictionary usually is maintained

A) automatically by the DBMS.
B) by the database administrator.
C) by the database programmers.
D) by top management.

Question 14

In a well-structured relational database,

A) every table must be related to at least one other table.
B) every table must be related to all other tables.
C) one table must be related to at least one other table.
D) one table must be related to all other tables.

Question 15

Record layouts,definitions,addresses,and indexes will be stored at the ________ level schema.

A) external
B) conceptual
C) internal
D) meta

Question 16

File-oriented approaches create problems for organizations because of

A) multiple transaction files.
B) a lack of sophisticated file maintenance software.
C) multiple users.
D) multiple master files.

Question 17

Reports produced using the data dictionary could include all of the following except a list of

A) programs where a data item is used.
B) synonyms for the data items in a particular file.
C) outputs where a data element is used.
D) the schemas included in a database.

Question 18

The logical structure of a database is described by the

A) data dictionary.
B) schema.
C) database management system.
D) internal level.

Question 19

Which of the following would not be found in a data dictionary entry for a data item?

A) records containing a specific data item
B) physical location of the data
C) source of the data item
D) field type

Question 20

All of the following are benefits of the database approach except:

A) Data integration and sharing
B) Decentralized management of data
C) Minimal data redundancy
D) Cross-functional analysis and reporting

Question 21

The database requirement that foreign keys must be null or have a value corresponding to the value of a primary key in another table is formally called the

A) entity integrity rule.
B) referential integrity rule.
C) rule of keys.
D) foreign key rule.

Question 22

The delete anomaly

A) may result in unintentional loss of important data.
B) is usually easily detected by users.
C) restricts the addition of new records.
D) prevents users from deleting outdated data from records or tables.

Question 23

In the database design approach known as normalization,the first assumption made about data is

A) there is no redundancy in the data.
B) the delete anomaly will not apply since all customer records will be maintained indefinitely.
C) everything is initially stored in one large table.
D) the data will not be maintained in 3NF tables.

Question 24

In a well-structured database,the constraint that ensures the consistency of the data is known as the

A) entity integrity rule.
B) referential integrity rule.
C) logical view.
D) consistency integrity rule.

Question 25

When the human resources manager wants to gather data about vacation and personal day usage by employees and by departments,the manager would use which language?

A) Data Query Language
B) Data Manipulation Language
C) Data Report Language
D) Data Definition Language

Question 26

The database design method in which a designer uses knowledge about business processes to create a diagram of the elements to be included in the database is called

A) normalization.
B) decentralization.
C) geometric data modeling.
D) semantic data modeling.

Question 27

Identify the aspect of a well-structured database that is incorrect.

A) Data is consistent.
B) Redundancy is minimized and controlled.
C) All data is stored in one table or relation.
D) The primary key of any row in a relation cannot be null.

Question 28

The problem of losing desired information from a database when an unwanted record is purged from the database is referred to as the ________ anomaly.

A) purge
B) erase
C) delete
D) integrity

Question 29

In a relational database,requiring that every record in a table have a unique identifier is called the

A) entity integrity rule.
B) referential integrity rule.
C) unique primary key rule.
D) foreign key rule.

Question 30

A relational database in which customer data is not maintained independently of sales invoice data will most likely result in

A) an update anomaly.
B) an insert anomaly.
C) a delete anomaly.
D) an integrity anomaly.

Question 31

The potential inconsistency that could occur when there are multiple occurrences of a specific data item in a database is called the

A) update anomaly.
B) insert anomaly.
C) inconsistency anomaly.
D) delete anomaly.

Question 32

Inability to add new data to a database without violating the basic integrity of the database is referred to as the

A) update anomaly.
B) insert anomaly.
C) integrity anomaly.
D) delete anomaly.

Question 33

If a national sales tax were implemented,which language would be used to add a new field in the sales table to track the sales tax due?

A) Data Definition Language
B) Data Manipulation Language
C) Data Query Language
D) Data Update Language

Question 34

The problem of changes (or updates)to data values in a database being incorrectly recorded is known as

A) an update anomaly.
B) an insert anomaly.
C) a delete anomaly.
D) a memory anomaly.

Question 35

Creating an empty table in a relational database requires use of the ________,and populating that table requires the use of ________.

A) DDL; DML
B) DQL; SQL
C) DDL; DQL
D) DML; DDA

Question 36

The abstract representation of the contents of a database is called the

A) logical data model.
B) data dictionary.
C) physical view.
D) schema.

Question 37

The feature in many database systems that simplifies the creation of reports by allowing users to specify the data elements desired and the format of the output.is named the

A) report writer.
B) report generator.
C) report creator.
D) report printer.

Question 38

Which would not generally be considered a data dictionary output report?

A) A list of cash balances in the organization's bank accounts
B) A list of all programs in which a data element is used
C) A list of all synonyms for the data elements in a particular file
D) A list of all data elements used by a particular user

Question 39

The update anomaly in file-based systems or unnormalized database tables

A) occurs because of data redundancy.
B) restricts addition of new fields or attributes.
C) results in records that cannot be updated.
D) is usually easily detected by users.

Question 40

Which statement below is false regarding the basic requirements of the relational data model?

A) Every column in a row must be single-valued.
B) All non-key attributes in a table should describe a characteristic about the object identified by the primary key.
C) Foreign keys, if not null, must have values that correspond to the value of a primary key in another table.
D) Primary keys can be null.

Question 41

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The entities described by the second table are:

A) marmosets
B) parental relationships
C) registration numbers
D) names

Question 42

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The primary key in the first table is:

A) name
B) birth date
C) a foreign key in the second table.
D) the primary key in the second table.

Question 43

Scuz Bootes has been doing custom choppers,piercings,and tattoos for over thirty years.His home and place of business is a garage in the harbor district of Seattle,Washington.He has meticulous records of every job he has ever done,carefully handwritten with the customer name and address,a description of the job,and an attached picture of the bike or body part before and after customization.His unique style has recently attracted the attention of national media after several celebrities sought him out and showcased his work.Business is booming.Consequently,Scuz has hired you to construct an accounting information system,beginning with the historical records.As you read through the records,you notice that some describe multiple services.For example,Sheila Yasgur (notation: won lottery)got a custom chopper,multiple tattoos,and piercings in undisclosed locations (no pictures.)You realize that,in these cases,a single written record will have to be translated into multiple sales records.This is an example of what type of problem in the existing records?

A) Entity integrity
B) Referential integrity
C) Update anomaly
D) Insert anomaly

Question 44

Scuz Bootes has been doing custom choppers,piercings,and tattoos for over thirty years.His home and place of business is a garage in the harbor district of Seattle,Washington.He has meticulous records of every job he has ever done,carefully handwritten with the customer name and address,a description of the job,and an attached picture of the bike or body part before and after customization.His unique style has recently attracted the attention of national media after several celebrities sought him out and showcased his work.Business is booming.Consequently,Scuz has hired you to construct an accounting information system,beginning with the historical records.As you read through the records,you notice that some customer last names have different first names in different records.For example,R.Framington Farnsworth (custom chopper),Bob Farnsworth (tattoo),and Snake Farnsworth (tattoos and piercings)all seem to be the same person.You explain to Scuz that every customer must be identified by a unique customer number in the AIS.You are referring to the

A) entity integrity rule.
B) referential integrity rule.
C) update anomaly.
D) insert anomaly.

Question 45

Which of the statements below is incorrect?

A) Semantic data modeling facilitates the efficient design of databases.
B) Semantic data modeling facilitates communicating with the intended users of the system.
C) Semantic data modeling allows a database designer to use knowledge about business processes to design the database.
D) Semantic data modeling follows the rules of normalization in the design of a database.

Question 46

What is one potential drawback in the design and implementation of database systems for accounting?

A) Double-entry accounting relies on redundancy as part of the accounting process but well-designed database systems reduce and attempt to eliminate redundancy.
B) Relational DBMS query languages will allow financial reports to be prepared to cover whatever time periods managers want to examine.
C) Relational DBMS provide the capability of integrating financial and operational data.
D) Relational DBMS can accommodate multiple views of the same underlying data; therefore, tables storing information about assets can include data about both historical and replacement costs.

Question 47

Scuz Bootes has been doing custom choppers,piercings,and tattoos for over thirty years.His home and place of business is a garage in the harbor district of Seattle,Washington.He has meticulous records of every job he has ever done,carefully handwritten with the customer name and address,a description of the job,and an attached picture of the bike or body part before and after customization.His unique style has recently attracted the attention of national media after several celebrities sought him out and showcased his work.Business is booming.Consequently,Scuz has hired you to construct an accounting information system,beginning with the historical records.As you read through the records,you notice that some customer last names have different first names in different records.For example,R.Framington Farnsworth (custom chopper),Bob Farnsworth (tattoo),and Snake Farnsworth (tattoos and piercings)all seem to be the same person.This is an example of what type of problem in the existing records?

A) Entity integrity
B) Referential integrity
C) Update anomaly
D) Insert anomaly

Question 48

Shandra Bundawi is a new graduate who has been hired by an old-line,family-owned furniture manufacturing company in the northeast.She has been asked to analyze the company's accounting information system and to recommend cost-effective improvements.After noting that the production and sales departments use database systems that are entirely separated,she recommends that they be combined.Implementation of her recommendation would benefit the company by contributing to data

A) independence.
B) integration.
C) redundancy.
D) qualifications.

Question 49

Chelsana Washington is a medical equipment sales representative.Her company has provided her with a laptop computer that uses wireless connectivity to access the accounting information system from virtually anywhere in the country.She,and the other sales reps,have access to view customer and product information.They have access that allows them to enter and cancel customer orders.The permissions for the sales reps define a(an)________ in the company's database management system.

A) conceptual-level schema
B) external-level schema
C) data dictionary
D) physical view

Question 50

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The primary key in the second table is:

A) name
B) birth date
C) a combination of primary keys in the first table
D) the same as the primary key in the first table

Question 51

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The primary key in the first table is:

A) name
B) registration number
C) date of birth
D) relationship number

Question 52

The data on this sales invoice would be generated from how many well-structured tables in a well-designed relational database?

A) 6
B) 5
C) 4
D) 7

Question 53

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The entities described by the first table are:

A) marmosets
B) parental relationships
C) registration numbers
D) names

Question 54

Which is probably the most immediate and significant effect of database technology on accounting?

A) replacement of the double entry-system
B) change in the nature of financial reporting
C) elimination of traditional records such as journals and ledgers
D) quicker access to and greater use of accounting information in decision-making

Question 55

Chelsana Washington is a medical equipment sales representative.Her company has provided her with a laptop computer that uses wireless connectivity to access the accounting information system from virtually anywhere in the country.She,and the other sales reps,have access to view customer and product information.They have access that allows them to enter and cancel customer orders.The permissions for Chelsana define a(an)________ in the company's database management system.

A) conceptual-level schema
B) subschema
C) data dictionary
D) physical view

Question 56

In a well-designed and normalized database,which of the following attributes would be a foreign key in a cash receipts table?

A) Customer number
B) Cash receipt date
C) Remittance advice number
D) Customer check number

Question 57

Scuz Bootes has been doing custom choppers,piercings,and tattoos for over thirty years.His home and place of business is a garage in the harbor district of Seattle,Washington.He has meticulous records of every job he has ever done.These have been entered into a computerized accounting information system that his accountant refers to as a "data warehouse." Scuz is considering an expansion of his business into scarification,and has asked his accountant to identify past customers who might be likely candidates for this service.Scuz wants his accountant to engage in

A) customer auditing.
B) customer resource management.
C) data mining.
D) enterprise resource planning.

Question 58

Heidi Holloway is a headhunter with Career Funnel in Boca Raton,Florida.Heidi is proud of the company's motto: We funnel workers into jobs.The foundation of CF's success is its accounting information system.When a client is placed with an employer,a record is created that identifies the employment relationship.CF follows up on placements by surveying both employers and clients about the employment experience and then entering the results into the AIS.Clients are uniquely identified by social security number.In records that contain client survey data,the social security number number is likely to be

A) the primary key.
B) a foreign key.
C) combined with other data fields to form a primary key.
D) null.

Question 59

Scuz Bootes has been doing custom choppers,piercings,and tattoos for over thirty years.His home and place of business is a garage in the harbor district of Seattle,Washington.He has meticulous records of every job he has ever done,carefully handwritten with the customer name and address,a description of the job,and an attached picture of the bike or body part before and after customization.His unique style has recently attracted the attention of national media after several celebrities sought him out and showcased his work.Business is booming.Consequently,Scuz has hired you to construct an accounting information system,beginning with the historical records.You begin development of the relational database that will form the core of the AIS by envisioning the record stored in a single table with a column that represents each attribute.You then begin to break this table down into smaller tables.This process is called

A) integration.
B) optimization.
C) minimization.
D) normalization.

Question 60

Dana Halsey is chair of the Purebred Marmoset Society,which maintains a database of registered purebred marmosets and their breeding history.One table will store the name,birth date,and other characteristics of all of the marmosets that have been registered.Each marmoset is uniquely identified by a registration number.A second table will contain data that link each marmoset to its male and female parents by means of their registration numbers.The primary key in the second table is:

A) name
B) registration number
C) date of birth
D) relationship number

Question 61

Chagall Curtain Company is changing from a file-oriented system to a relational database system.Design at least three tables that would be needed to capture data for a sales transaction.Each table should include a primary key,three non-key attributes,and foreign keys as necessary.Make up data values for two records within each table.

Question 62

Describe the different schemas involved in a database structure.What is the role of accountants in development of schemas?

Question 63

Which one of the following results corresponds to the query below?

A)

B)

C)

D)

Question 64

Explain the difference between file-oriented transaction processing systems and relational database systems.Discuss the advantages and disadvantages of each system.

Question 65

Which of the following would not be true about the well-structured tables in a well-designed relational database used to generate this sales invoice?

A) Quantity would be generated from the Sales table.
B) 34567 would be a primary key in the Sales table.
C) Unit Price would be generated from the Inventory table.
D) Hardware City is an example of a non-key data value in the Customer table.

Question 66

Describe a data dictionary.

Question 67

Explain the types of attributes that tables possess in a relational database.

Question 68

Discuss redundancy as it applies to database design.

Question 69

Which of the following would not be one of the well-structured tables in a well-designed relational database used to generate this sales invoice?

A) Customer Order
B) Customer
C) Sales
D) Sales Order

Question 70

What are the basic requirements when logically designing a relational database model?

Question 71

Describe what you think will be the main impact of database technology in your career.

Question 72

Which one of the following results corresponds to the query below?

A)

B)

C)

D)

Question 73

Describe a major advantage of database systems over file-oriented transaction processing systems.

Question 74

Describe the information that is contained in the data dictionary.

Question 75

What is the difference in logical view and physical view?

Question 76

Explain the relational database data model.

Question 77

Discuss the ways in which a well-designed DBMS will facilitate the three basic functions of creating,changing,and querying data.

Question 78

Which one of the following results corresponds to the query below?

A)

B)

C)

D)

Question 79

List the four DBMS "languages" and describe who uses each and for what purpose.

Question 80

Explain the two advantages semantic data modeling has over normalization when designing a relational database.