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8/12/2020 WGU Student Portal | Coaching Report




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



1.
What is a broad deknition of data?


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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?


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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?

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,8/12/2020 WGU Student Portal | Coaching Report
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ANSWER


It does not allow copying and pasting.




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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?


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A

B

C

D




5.
Which is true about flat kles?


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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?


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Flat files

Heap files

Hashed tables

Relational

databases




7.
How were data retrieved before database management systems?


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Randomly from linked files

Sequentially from simple files

Using set operations on complex files

Using relationships between logical entities




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