WGU PRE-ASSESSMENT :DATA MANAGEMENT -FOUNDATIONS PFKO

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WGUPRE-ASSESSMENT:
PRE-ASSESSMENT DATA MANAGEMENT
:DATA - FOUNDATIONS
MANAGEMENT PFKO PFK
-FOUNDATIONS
Attempt #1
Status: Passed



1.
What is a broad de nition of data?


YOUR CORRECT
ANSWER ANSWER


Numbers that are captured on digital media

Raw facts that are captured on printed or digital media

Alphanumeric combinations that can be captured on media that a computer can
read

Any information that can be transferred from print to digital




2.
What are data?


YOUR CORRECT
ANSWER ANSWER


Facts that have been organized in a meaningful way

Facts that are the result of a query of a database system

Facts that are collected and stored in a database system

Facts that have been processed and used for decision making




3.
What is a determining characteristic of unstructured data?


YOUR CORRECT
ANSWER ANSWER


It does not allow copying and pasting.

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YOUR CORRECT
ANSWER ANSWER


It is easy to query and retrieve by business applications.

It does not follow a data model.

It is stored in rows and columns.




4.
Refer to this diagram.




Which item represents unstructured data?


YOUR CORRECT
ANSWER ANSWER


A

B

C

D




5.
Which is true about at les?


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ANSWER ANSWER




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YOUR CORRECT
ANSWER ANSWER


They contain no internal hierarchical organization.

They have a limit of 256 records.

They can only contain two-dimensional data.

They are always encrypted.




6.
Which technology has no internal hierarchy?


YOUR CORRECT
ANSWER ANSWER


Flat les

Heap les

Hashed tables

Relational databases




7.
How were data retrieved before database management systems?


YOUR CORRECT
ANSWER ANSWER


Randomly from linked les

Sequentially from simple les

Using set operations on complex les

Using relationships between logical entities




8.
What is the uniquely identi able element about which data can be categorized in an entity-relationship
diagram?
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