Question 1

Describe the two ways that semantic object views can be used.

Accepted Answer

A semantic view can be used: (1)during database design to reverse-engineer a data model,since the view an application has of an object is represented in the reports,forms and queries of that application,and (2)once the database structure has been created,views can be used to develop new forms and reports from the existing database.

Question 2

Group attributes are composites of other attributes.

Accepted Answer

A) True 
 B)False  True

Question 3

A group identifier:

Accepted Answer

A) has more than one attribute. 
B) identifies a group of instances. 
C) identifies a group of attributes in an object. 
D) is the identifier for a group of semantic objects. 
E) links two objects. 
A) has more than one attribute. 
B) identifies a group of instances. 
C) identifies a group of attributes in an object. 
D) is the identifier for a group of semantic objects. 
E) links two objects. A

Question 4

A subtype inherits all the attributes of its parent.

Accepted Answer

A) True 
 B)False

Question 5

Semantic objects represent the user's perceptions more closely than the E-R model.

Accepted Answer

A) True 
 B)False

Question 6

A "hybrid object" is a semantic object that relates two or more objects and stores data that are peculiar to that relationship.

Accepted Answer

A) True 
 B)False

Question 7

A semantic object must represent something with a physical existence.

Accepted Answer

A) True 
 B)False

Question 8

Semantic objects represent distinct identities.

Accepted Answer

A) True 
 B)False

Question 9

A simple object is a semantic object that contains only:

Accepted Answer

A) single-value,simple or group attributes. 
B) single-value,object attributes. 
C) single-value,simple attributes. 
D) multi-value,simple or group attributes. 
E) simple attributes. 
A) single-value,simple or group attributes. 
B) single-value,object attributes. 
C) single-value,simple attributes. 
D) multi-value,simple or group attributes. 
E) simple attributes.

Question 10

Semantic objects are grouped into:

Accepted Answer

A) composites. 
B) entities. 
C) objects. 
D) classes. 
E) associations. 
A) composites. 
B) entities. 
C) objects. 
D) classes. 
E) associations.

Question 11

Distinguish between the physical description and the semantic description of an attribute domain.

Accepted Answer

The physical description of an attribute

Question 12

A composite object is a semantic object that contains:

Accepted Answer

A) single-value,simple or group attributes,but no object attributes. 
B) at least one object attribute. 
C) at least one multi-value,simple or group attribute but no object attributes. 
D) at least one multi-value,object attribute. 
E) at least one group attribute but no object attributes. 
A) single-value,simple or group attributes,but no object attributes. 
B) at least one object attribute. 
C) at least one multi-value,simple or group attribute but no object attributes. 
D) at least one multi-value,object attribute. 
E) at least one group attribute but no object attributes.

Question 13

A compound object is a semantic object that contains at least one:

Accepted Answer

A) single-value,group attribute. 
B) multi-value,simple or group attribute. 
C) object attribute. 
D) multi-value attribute. 
E) group attribute. 
A) single-value,group attribute. 
B) multi-value,simple or group attribute. 
C) object attribute. 
D) multi-value attribute. 
E) group attribute.

Question 14

Semantic objects are said to be:

Accepted Answer

A) Semantically self-contained. 
B) Semantically complete. 
C) Semantically inclusive. 
D) Either A or B. 
E) None of the above. 
A) Semantically self-contained. 
B) Semantically complete. 
C) Semantically inclusive. 
D) Either A or B. 
E) None of the above.

Question 15

An association object relates two (or more)objects and stores data that are peculiar to that relationship.

Accepted Answer

A) True 
 B)False

Question 16

The relationship between a parent object and its associated subtype objects is a(n):

Accepted Answer

A) HAS-A relationship. 
B) WANTS-A relationship. 
C) NEEDS-A relationship. 
D) IS-A relationship. 
E) None of the above. 
A) HAS-A relationship. 
B) WANTS-A relationship. 
C) NEEDS-A relationship. 
D) IS-A relationship. 
E) None of the above.

Question 17

Explain why semantic object attributes are call "paired attributes."

Accepted Answer

Semantic object attributes are used to i

Question 18

A parent object is also known as a(n):

Accepted Answer

A) supertype object. 
B) child object. 
C) subtype object. 
D) multiple-value object. 
E) intersection object. 
A) supertype object. 
B) child object. 
C) subtype object. 
D) multiple-value object. 
E) intersection object.

Question 19

What type of attribute is composed of other attributes?

Accepted Answer

A) simple 
B) meta 
C) group 
D) compound 
E) composite 
A) simple 
B) meta 
C) group 
D) compound 
E) composite

Question 20

The first attribute of a subtype object is the childID attribute.

Accepted Answer

A) True 
 B)False

Exam 20: the Semantic Object Model

Describe the two ways that semantic object views can be used.

Group attributes are composites of other attributes.

A group identifier:

A subtype inherits all the attributes of its parent.

Semantic objects represent the user's perceptions more closely than the E-R model.

A "hybrid object" is a semantic object that relates two or more objects and stores data that are peculiar to that relationship.

A semantic object must represent something with a physical existence.

Semantic objects represent distinct identities.

A simple object is a semantic object that contains only:

Semantic objects are grouped into:

Distinguish between the physical description and the semantic description of an attribute domain.

A composite object is a semantic object that contains:

A compound object is a semantic object that contains at least one:

Semantic objects are said to be:

An association object relates two (or more)objects and stores data that are peculiar to that relationship.

The relationship between a parent object and its associated subtype objects is a(n):

Explain why semantic object attributes are call "paired attributes."

A parent object is also known as a(n):

What type of attribute is composed of other attributes?

The first attribute of a subtype object is the childID attribute.

Introduction

Introduction to Structured Query Language SQL

The Relational Model and Normalization

Database Design Using Normalization

Data Modeling With the Entity-Relationship Model

Transforming Data Models Into Database Designs

Sql for Database Construction and Application Processing

Database Redesign

Managing Multiuser Databases

A: Managing Databases With SQL Server 20012

B: Managing Databases With Oracle Database 11g Release 2

C: Managing Databases With MySQL

The Web Server Environment

Big Data datawarehouse and Business Intelligence Systems

Microsoft Access 2013

Getting Started With Systems Analysis and Design

E-R Diagrams and the Idef1x Standard

E-R Diagrams and the UML Standard

Getting Started With MySQL Workbench Data Modeling Tools

Getting Started With Microsoft Visio 2013

Data Structures for Database Processing

Getting Started With Web Servers php and the Eclipse PDT

Business Intelligence Systems

Filters