process of identifying entities

1. (TCO 2) All of the following are questions to ask in the process of identifying entities EXCEPT: (Points :
4) Can you envision more than one instance of the entity?
Is there a variation over time?
Is the item to be modeled a person, place, thing, or an event?
Is the item to be modeled an attribute? Question 2.2. (TCO 2) Which of the following is NOT a step in the Database Life Cycle? (Points : 4) Database Design
Maintenance and Redevelopment
Performance
Testing Question 3.3. (TCO 3) Database design refers to (Points : 4) developing a database model that will support company operations.
focusing on understanding the business and its functional areas or business processes.
selecting the specific hardware characteristics based on data storage and data access
requirements.
the process of converting your ERD into tables, and defining your rows and columns based your
entities and attributes. Question 4.4. (TCO 2) A crow’s foot (Points : 4) is a Boolean field.
is used to describe attributes.
points to the child table.
points to the parent table. Question 5.5. (TCO 2) The term cardinality refers to (Points : 4) a count of the total records in a table. a field which is a candidate for a primary key.
the number of records in a relationship.
the most important field in a table. Question 6.6. (TCO 2) A primary key (Points : 4) can be computer generated.
consists of one field only that uniquely identifies each record in a table.
is a relationship between two or more tables.
All of the above Question 7.7. (TCO 3) What does not define a composite key? (Points : 4) Using two or more fields as a primary key
Using three fields as a primary key
Using two fields as a primary key
Using one field as a primary key Question 8.8. (TCO 4) Entity attributes are represented as (Points : 4) fields.
files.
records.
tables. Question 9.9. (TCO 4) Which of the following is NOT true of a birth date field? (Points : 4) A birth date is considered a constant.
A birth date would be defined as a date/time field.
The age field is the same as a birth date field.
Date arithmetic can be applied to a birth date field. Question 10.10. (TCO 4) Which question is part of a requirements analysis? (Points : 4) What is the organization’s structure and core business?
What are the existing problems with the current database?
Will the database interface with other systems?
All of the above

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