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Management 3300 Exam 2 Mizzou Questions with Correct Answers
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Management 3300 Exam 2 Mizzou Questions with Correct Answers
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Management 3300 Exam 2 Mizzou Questions withCorrect Answers
structured information Correct Answer-usually considered to be facts
and data
it is reasonably orderly, and can be broken down into component parts
and organized into hierarchies
unstructured information Correct Answer-has no inherent structure or
order, and the parts can't be easily linked together
it is more difficult to break down, categorize, organize, and query
metadata Correct Answer-data about data
clarifies the nature of the information
for structured information, it describes the definitions for each field,
table and their relationships
for unstructured or semi-structured info it describes properties of a
document or other resource
five advantages of databases Correct Answer-1. reduce redundancy
,2. increase information quality
3. flexibility
4. increase information security
5. scalability
relational integrity constraint Correct Answer-rule that enforces basic
and fundamental information-based constraints (ensure accuracy and
consistency of data)
business-critical integrity constraint Correct Answer-rule that enforce
business rules vital to an organization's success and often require more
insight and knowledge than relational integrity constraints
password Correct Answer-provides authentication of the user
access level Correct Answer-determines who has access to the different
types of information
access control Correct Answer-determines types of user access, such as
read-only access
entity Correct Answer-object, concept or event (subject)
ex. Customer
,attributes Correct Answer-a characteristic of an entity
ex. Customer ID, Customer Name, Contact Name, Phone #
record Correct Answer-the specific characteristics of one entity also
called a row or tuple
ex. 314-882-2409 or David Logan
A representation of an entity in a meaningful way, which includes the
attributes of the entity, is called a ________.
table Correct Answer-a collection of records
ex. all the information
database Correct Answer-a collection of tables
stores info for a single application
primary key Correct Answer-indicates uniqueness within records or
rows in a table
, foreign key Correct Answer-the primary key from another table, this is
the only way join relationships can be established
The Entity Relationship (ER) Model Correct Answer-forms the basis of
an ER diagram
ERD (entity relationship diagram) Correct Answer-represents
conceptual database as viewed by end user
depicts: entities, attributes, and relationships
cardinality Correct Answer-the count of records that are allowed or are
necessary between entity relationship
tells us how many rows we need from one table before we can link it to
another table
"number of elements of the set"
Structured query language (SQL) Correct Answer-uses queries to
retrieve records, insert and edit data, and delete records.
widely used to manipulate information in relational databases
IVR Correct Answer-interactive voice response
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