Question: Business rules must be rendered in writing.
Answer Choices: True
False
Answer: True
Question: A(n) _____ is the equivalent of a field in a file system.
Answer Choices: attribute
entity
relationship
constraint
Answer: attribute
Question: The _____ model uses the term connectivity to label the relationship types.
Answer Choices: relational
network
object-oriented
entity relationship
Answer: entity relationship
Question: A data model is usually graphical.
Answer Choices: True
False
Answer: True
Question: A(n) _____’s main function is to help one understand the complexities of the real-world environment.
Answer Choices: node
entity
model
database
Answer: model
Question: A(n) _____ enables a database administrator to describe schema components.
Answer Choices: extensible markup language (XML)
data definition language (DDL)
unified modeling language (UML)
query language
Answer: data definition language (DDL)
Question: A(n) _____ represents a particular type of object in the real world.
Answer Choices: attribute
entity
relationship
node
Answer: entity
Question: Which of the following is true of NoSQL databases?
Answer Choices: They do not support distributed database architectures.
They are not based on the relational model.
They are geared toward transaction consistency; not performance.
They do not support very large amounts of sparse data.
Answer: They are not based on the relational model.
Question: A(n) _____ is a restriction placed on the data.
Answer Choices: attribute
entity
relationship
constraint
Answer: constraint
Question: MySQL is an example of the _____.
Answer Choices: hierarchical model
file system data model
relational data model
entity relationship model
Answer: relational data model