Data Management and Assessment Question

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Database
Which of the following has (have) the broadest impact on an organization? Decisions about data.

Assessment Question 3.25
Your answer is correct.
Which of the following is not a reason why managing data is difficult over time?

New systems are developed.
The media the data are stored on becomes problematic.
New sources of data are created.
The amount of data increases exponentially.
All of these are reasons why managing data is difficult over time.

Assessment Question 3.26
Your answer is correct.
Not including alphabetic characters in a Social Security Number field is an example of _____.

Data isolation.
Data integrity.
Data consistency.
Data redundancy.
Application/data dependence.

Assessment Question 3.27
Your answer is correct.
_____ occurs when applications cannot access data associated with other applications.

Data isolation
Data integrity
Data consistency
Data redundancy
Application/Data dependence

Assessment Question 3.28
Your answer is correct.
_____ occurs when the same data are stored in many places.

Data isolation
Data integrity
Data consistency
Data redundancy
Application/Data dependence

Assessment Question 3.29
Your answer is correct.
_____ occurs when various copies of the data agree.

Data isolation
Data integrity
Data consistency
Data redundancy
Application/Data dependence

Assessment Question 3.31
Your answer is correct.

Place the following members of the data hierarchy in their correct order:

Bit – byte – field – record – database – file
Bit – field – byte – record – file – database
Byte – bit – record – field – database
Bit – byte – field – record – file – database
Bit – record – field – byte – file -- database

Assessment Question 3.33
Your answer is correct.
A(n) _____ is a logical grouping of characters into a word, a small group of words, or a complete number.

Byte
Field
Record
File
Database
Assessment Question 3.34
Your answer is correct.
A(n) _____ is a logical grouping of related fields.

Byte
Field
Record
File
Database
Assessment Question 3.35

Your answer is correct.
A(n) _____ is a logical grouping of related records.

Byte
Field
Record
File
Database

Assessment Question 3.37
Your answer is correct.
In a database, the primary key field is used to _____.

specify an entity
create linked lists
identify duplicated data
uniquely identify a record
uniquely identify an attribute
Assessment Question 3.38
Your answer is correct.
_____ are fields in a record that have some identifying information but typically do not identify the record with complete accuracy.

Primary keys
Secondary keys
Duplicate keys
Attribute keys
Record keys
Assessment Question 3.39

Your answer is correct.
As an individual student in your university’s student database, you are a(n) _____ of the STUDENT class.

instance
individual
representative
entity
relationship
Assessment Question 3.40
Your answer is correct.
At your university, students can take more than one class, and each class can have more than one student. This is an example of what kind of relationship?

one-to-one
one-to-many
many-to-one
many-to-many
some-to-many
Assessment Question 3.41
Your answer is correct.
In a university’s relational database, the student record contains information regarding the student’s last name. The last name is a(n):

attribute.
entity.
primary key.
object.
file.
Assessment Question 3.42
Your answer is correct.

A database management system is primarily a(n) _____.

file-handling program
data-modeling program
interface between applications and a database
interface between data and a database
interface between queries and a database
Assessment Question 3.50
Your answer is correct.
When data are normalized, attributes in the table depend only on the _____.

secondary key
common attribute
primary key
common row
common record
Assessment Question 3.51
Your answer is...
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