Deck 4: Relational Databases and Enterprise System

Question 1

Which of the following correctly describes the Referential Integrity Rule?
A. The primary key of a table must have data values (cannot be null)
B. Each attribute in a table must have a unique name
C. The data value for a foreign key could be null
D. Values of a specific attribute must be of the same type

Answer 1

The data value for a foreign key could be null

Question 2

The "Where" SQL clause can be used to link two tables.

Answer 2

True

Question 3

In a hierarchical data model, data elements are related in many-to-many relationships.

Answer 3

False

Question 4

Classes could be grouped into Resources (R), Entities (E), and Assets (A) in data modeling.

Question 5

Three types of data models used today are: the hierarchical model, the network model and the relational model.

Question 6

SQL is based on relational algebra and allows a user to query and update the database.

Question 7

Each attribute in a table can have several names.

Question 8

Access is a simple database management system that can be used to run databases for individuals and small firms.

Question 9

In Access, users can edit database information in reports.

Question 10

A company would like to implement a management information system that integrates all functional areas within an organization to allow information exchange and collaboration among all parties involved in business operations. Which of the following systems is most effective for this application?
A. A decision support system.
B. An executive support system.
C. An office automation system.
D. An enterprise resource planning system.

Question 11

Queries in Access are utilized by users to enter data into tables and view existing records.

Question 12

In Microsoft Access, we use tables in a database for:
A. Data entry
B. Data storage
C. Data retrieval
D. Two of the above are correct.

Question 13

In a database, while queries allow the user to access, read and report on desired data, the responsibility of actually making physical changes to the relational database belongs to the Database Management System (DBMS).

Question 14

Which of the following tasks cannot be performed through queries in Access?
A. Retrieve and display data
B. Calculations of data
C. Data sorting
D. Create and update relationships

Question 15

Which type of data models allows each record to have multiple parent and child records?
A. The hierarchical mode
B. The network model
C. The relational model
D. None of the above

Question 16

Cloud computing is an internet-based computing where shared resources, software, and information is provided to firms on demand.

Question 17

While hierarchical and network data models require relationships to be formed at the database creation, relational data models allow relationships to be created and updated as needed.

Question 18

The asterisk (*) following the SELECT SQL statement is a wild card indicating all columns should be selected.

Question 19

Access offers modules, which are defined by users to automate processes like opening a specific form.

Question 20

The SQL command "Group by" can be used to order an amount in a descending order.

Question 21

Which of the following about cloud computing is incorrect?
A. Cloud computing is Internet-based computing where shared resources, software, and information are provided to firms on demand.
B. Cloud Computing can easily host enterprise system applications.
C. Security is a major issue to consider when using cloud computing
D. Clients using cloud computing do not need to periodically back up data

Question 22

In Microsoft Access, we use "Tables" for:
A. Data entry
B. Data storage
C. Date retrieve
D. Two of the above

Question 23

An enterprise resource planning system has which of the following advantages over multiple independent functional systems?
A. Modifications can be made to each module without affecting other modules.
B. Increased responsiveness and flexibility while aiding in the decision-making process,
C. Increased amount of data redundancy since more than one module contains the same information.
D. Reduction in costs for implementation and training.

Question 24

Which of the following items can best be described as a "Resource" in the REA data model?
A. Cashier
B. Sales
C. Cash
D. Two of the above are correct.

Question 25

Which of the following is not one of the advantages relational data models have over other data models?
A. Exclusively uses parent/child relationships
B. Increased flexibility and scalability
C. Simplicity
D. Reduced information redundancy

Question 26

Which of the following items can best be described as an "Agent" in the REA data model?
A. Purchases.
B. Accounts payable clerk.
C. Raw material inventory.
D. None of the above is correct.

Question 27

Which of the following statements about the requirements of table design is incorrect?
A. Each attribute in a table must have a unique name.
B. Values of a specific attribute must be of the same type.
C. Each attribute (column) of a record (row) must be single-valued.
D. All other non-key attributes in a table must describe a characteristic of the class (table) identified by the foreign key.

Question 28

In Microsoft Access, we use "Forms" for
A. Data entry
B. Data storage
C. Date retrieve
D. Two of the above

Question 29

Classes in a relational database model for AISs are typically grouped into all of the following categories except:
A. Events
B. Agents
C. Resources
D. Activities

Question 30

Which of the following items can best be described as an "Event" in the REA data model?
A. Cash.
B. Cashier.
C. Cash collection.
D. None of the above is correct.

Question 31

What kind of data model is most commonly used in today's business environment?
A. Hierarchical data model
B. Network data model
C. Relational data model
D. All of the above

Question 32

Which of the following best describes a DBMS?
A. The manager(s) in charge of a company's databases
B. Software that can create, modify and query databases
C. A language used to retrieve data from databases
D. A database created using Microsoft software

Question 33

What is the main purpose of using foreign keys in a relational database design?
A. It provides useful financial data value in the table.
B. It is required in all tables.
C. It is used to link tables.
D. None of the above is correct.

Question 34

Which of the following about SQL is incorrect?
A. SQL is a language designed to query data in a relational database.
B. SQL is based on relational algebra and allows a user to query and update the database.
C. SQL is very user-friendly.
D. SQL uses SELECT statement to tell the query which columns (or attributes) of a table should be included in the query.

Question 35

A foreign key in a database table is always:
A. A unique identifier for a record in that table
B. A numeric field
C. The name of a UML class
D. A primary key in a related table

Question 36

Which of the following items does not represent a UML class diagram object and its resulting database object?
A. Classes $\rightarrow$ Tables
B. Attributes $\rightarrow$ Fields
C. Multiplicities $\rightarrow$ Records
D. Associations $\rightarrow$ Relationships

Question 37

Which of the following is not a type of data model?
A. Hierarchical data model
B. Network data model
C. Normalization data model
D. Relational data model

Question 38

To convert a conceptual model with a maximum multiplicities relationship of "many to many" into relationship database tables, one must
A. Create a foreign key in one of the tables to link the two tables.
B. Create a relation with no attributes of its own.
C. Create a relationship table to handle the many-to-many relationship.
D. Many-to-many relationship cannot be represented in Access.

Question 39

What kind data model is most commonly used HYPERLINK "http://www.whatis.com/relation.htm" as a basis for today's enterprise systems?
A. The hierarchical mode
B. The network model
C. The relational model
D. None of the above

Question 40

Which set of multiplicities correctly shows the relationship between the Cash Collection table and the Sales table in modeling cash sales?
A. Cash Collection (1..1) - Sale (1..N)
B. Cash Collection (1..N) - Sale (1..1)
C. Cash Collection (1..N) - Sale (1..1)
D. Cash Collection (1..1) - Sale (1..1)

Question 41

Which of the following Microsoft Access objects is used to integrate data from one or more queries and/or tables in order to present information useful to decision makers?
A. Tables
B. Reports
C. Forms
D. Macros

Question 42

Which set of multiplicities correctly shows the relationship between the Cash Receipts table and the Sale table for an organization that allows customers to buy on credit and pay in multiple installments?
A. Cash Receipts (1..1) - Sale (1..1)
B. Cash Receipts (1..N) - Sale (0..N)
C. Cash Receipts (1..1) - Sale (N..M)
D. Cash Receipts (0..N) - Sale (1..1)

Question 43

Which of the following is considered one of the primary benefits of ERPs?
A. ERPs allow an organization to integrate information related to multiple business functions (i.e., manufacturing, human resources, finance, etc.).
B. ERPs all operate using cloud computing technology.
C. ERPs create protected data silos for each function in the organization.
D. ERPs use relational data models, which are required by the Sarbanes-Oxley Act of 2002

Question 44

What are the benefits of implementing enterprise systems in companies?

Question 45

Which of the following is not one of the objects used in Microsoft Access?
A. Tables
B. Sites
C. Forms
D. Macros

Question 46

Which of the following statements best describes the entity integrity rule?
A. A database entity must fit within the REA model
B. A record's foreign key value must be null
C. A record's primary key must have a data value
D. All values of an attribute must be of the same data type

Question 47

Consider the following SQL query. Which item best describes the results of the query?
SELECT VendorID, Sum(POTotal)
FROM [Purchase Orders]
GROUP BY VendorID
A. Displays all purchase order lines for all vendors
B. Adds new purchase order information to the purchase orders table
C. Displays the vendor ID and all purchase order totals in the purchase orders table
D. Displays the vendor ID and the sum of all purchase order totals for that vendor

Question 48

Which of the following is not one of the typical challenges organizations face when implementing an ERP?
A. Integrating with external business partners' information systems
B. Converting data from legacy systems to the ERP
C. Installing the ERP software
D. Successfully completing a large project in an organization

Question 49

Which of the following is not a potential disadvantage of using cloud computing to host an organization's ERP?
A. Uncertainty about the data security of sensitive information hosted offsite
B. Reduced internal processing and storage needs for the organization
C. Uncertainty about the adequacy of the host's processing speed and availability
D. Requires a reliable Internet connection

Question 50

ERPs are useful to auditors for which of the following reasons?
A. ERPs use cloud computing technology, which allows auditors to review transactions from anywhere.
B. ERPs track details regarding creation, modification, and use of transactions throughout the organization in a single system.
C. ERPs are required by the Sarbanes-Oxley Act of 2002.
D. ERPs are spread across multiple logical databases, allowing auditors to minimize disruption to
processing when reviewing ERP activity.