C175 - Data Management Foundations PA
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What is a broad definition of data? - CORRECT ANSWER - *Raw facts* that are
captured on printed or digital media
What are data? - CORRECT ANSWER - Facts that are collected and stored in a database
system
What is a determining characteristic of unstructured data? - CORRECT ANSWER - It
does not follow a data model.
Which item represents unstructured data? - CORRECT ANSWER - Training Video
Content
Which is true about flat files? - CORRECT ANSWER - They contain no internal
hierarchical organization.
Which technology has no internal hierarchy? - CORRECT ANSWER - Flat files
How were data retrieved before database management systems? - CORRECT ANSWER -
Sequentially from simple files
What is the *uniquely identifiable element* about which data can be categorized in an entity-
relationship diagram? - CORRECT ANSWER - Entity types
Which classification is correct for the box marked "Quantity" in the given entity-relationship
diagram? - CORRECT ANSWER - Intersection data
, Which data classification is an entity? - CORRECT ANSWER - event
What is the entity-relationship diagram about a car rental agency showing? - CORRECT
ANSWER - One manufacturer created at least one of the agency's cars.
A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons.
Which kind of binary relationship is described in this example? - CORRECT ANSWER -
Many-to-many
Which relationship does the cardinality in the diagram represent? - CORRECT
ANSWER - Many customers to many products
How is the cardinality of the customers misrepresented? - CORRECT ANSWER - There
are many customers, but the cardinality indicates one customer.
What is the correct way to read the modality on the right side of the association? - CORRECT
ANSWER - A minimum of zero customers
What is the modality of the product? - CORRECT ANSWER - At least one
Which kind of relationship does this diagram depict? - CORRECT ANSWER - Unary one-
to-one
Which kind of relationship does this diagram depict? - CORRECT ANSWER - Unary one-
to-many
Which three kinds of rules for *referential integrity* are provided by modern relational database
management systems? - CORRECT ANSWER - Insert
Delete
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What is a broad definition of data? - CORRECT ANSWER - *Raw facts* that are
captured on printed or digital media
What are data? - CORRECT ANSWER - Facts that are collected and stored in a database
system
What is a determining characteristic of unstructured data? - CORRECT ANSWER - It
does not follow a data model.
Which item represents unstructured data? - CORRECT ANSWER - Training Video
Content
Which is true about flat files? - CORRECT ANSWER - They contain no internal
hierarchical organization.
Which technology has no internal hierarchy? - CORRECT ANSWER - Flat files
How were data retrieved before database management systems? - CORRECT ANSWER -
Sequentially from simple files
What is the *uniquely identifiable element* about which data can be categorized in an entity-
relationship diagram? - CORRECT ANSWER - Entity types
Which classification is correct for the box marked "Quantity" in the given entity-relationship
diagram? - CORRECT ANSWER - Intersection data
, Which data classification is an entity? - CORRECT ANSWER - event
What is the entity-relationship diagram about a car rental agency showing? - CORRECT
ANSWER - One manufacturer created at least one of the agency's cars.
A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons.
Which kind of binary relationship is described in this example? - CORRECT ANSWER -
Many-to-many
Which relationship does the cardinality in the diagram represent? - CORRECT
ANSWER - Many customers to many products
How is the cardinality of the customers misrepresented? - CORRECT ANSWER - There
are many customers, but the cardinality indicates one customer.
What is the correct way to read the modality on the right side of the association? - CORRECT
ANSWER - A minimum of zero customers
What is the modality of the product? - CORRECT ANSWER - At least one
Which kind of relationship does this diagram depict? - CORRECT ANSWER - Unary one-
to-one
Which kind of relationship does this diagram depict? - CORRECT ANSWER - Unary one-
to-many
Which three kinds of rules for *referential integrity* are provided by modern relational database
management systems? - CORRECT ANSWER - Insert
Delete
