WGU C175 Pre-
Assessment Multiple
Choice Exam Questions
and Complete Solutions
Graded A+
Denning [Date] [Course title]
,c - Answer: What is a broad definition of data?
A.) Alphanumeric combinations that can be captured on media that a computer can read
B.) Any information that can be transferred from print to digital
C.) Raw facts that are captured on printed or digital media
D.) Numbers that are captured on digital media
b - Answer: What are data?
A.) Facts that have been organized in a meaningful way
B.) Facts that are collected and stored in a database system
C.) Facts that are the result of a query of a database system
D.) Facts that have been processed and used for decision making
a - Answer: What is a determining characteristic of unstructured data?
A.) It does not follow a data model.
B.) It is stored in rows and columns.
C.) It does not allow copying and pasting.
D.) It is easy to query and retrieve by business applications.
a - Answer: Refer to this diagram.
Which item represents unstructured data?
A.) A
B.) B
C.) C
D.) D
, b - Answer: Which is true about flat files?
A.) They have a limit of 256 records.
B.) They contain no internal hierarchical organization.
C.) They can only contain two-dimensional data.
D.) They are always encrypted.
b - Answer: Which technology has no internal hierarchy?
A.) Hashed tables
B.) Flat files
C.) Relational databases
D.) Heap files
c - Answer: How were data retrieved before database management systems?
A.) Randomly from linked files
B.) Using set operations on complex files
C.) Sequentially from simple files
D.) Using relationships between logical entities
d - Answer: What is the uniquely identifiable element about which data can be categorized in an entity-
relationship diagram?
A.) Intersection data points
B.) Unary relationships
C.) Primary keys
D.) Entity types
Assessment Multiple
Choice Exam Questions
and Complete Solutions
Graded A+
Denning [Date] [Course title]
,c - Answer: What is a broad definition of data?
A.) Alphanumeric combinations that can be captured on media that a computer can read
B.) Any information that can be transferred from print to digital
C.) Raw facts that are captured on printed or digital media
D.) Numbers that are captured on digital media
b - Answer: What are data?
A.) Facts that have been organized in a meaningful way
B.) Facts that are collected and stored in a database system
C.) Facts that are the result of a query of a database system
D.) Facts that have been processed and used for decision making
a - Answer: What is a determining characteristic of unstructured data?
A.) It does not follow a data model.
B.) It is stored in rows and columns.
C.) It does not allow copying and pasting.
D.) It is easy to query and retrieve by business applications.
a - Answer: Refer to this diagram.
Which item represents unstructured data?
A.) A
B.) B
C.) C
D.) D
, b - Answer: Which is true about flat files?
A.) They have a limit of 256 records.
B.) They contain no internal hierarchical organization.
C.) They can only contain two-dimensional data.
D.) They are always encrypted.
b - Answer: Which technology has no internal hierarchy?
A.) Hashed tables
B.) Flat files
C.) Relational databases
D.) Heap files
c - Answer: How were data retrieved before database management systems?
A.) Randomly from linked files
B.) Using set operations on complex files
C.) Sequentially from simple files
D.) Using relationships between logical entities
d - Answer: What is the uniquely identifiable element about which data can be categorized in an entity-
relationship diagram?
A.) Intersection data points
B.) Unary relationships
C.) Primary keys
D.) Entity types
