WGU C175 PRE-ASSESSMENT EXAM
Questions and Answers
1. What is a broad definition of data?
A Numbers that are captured on digital media
B Raw facts that are captured on printed or digital media
C Alphanumeric combinations that can be captured on media that a
computer can read
D Any information that can be transferred from print to digital: B
2. What are data?
A Facts that have been organized in a meaningful way
B Facts that are the result of a query of a database system
C Facts that are collected and stored in a database system
D Facts that have been processed and used for decision making: C
3. What is a determining characteristic of unstructured data?
A It does not allow copying and pasting.
B It is easy to query and retrieve by business applications.
C It does not follow a data model.
D It is stored in rows and columns.: C
,4. Which is true about flat files?
A They contain no internal hierarchical organization.
B They have a limit of 256 records.
C They can only contain two-dimensional data.
D They are always encrypted.: A
5. Which technology has no internal hierarchy?
A Flat files
B Heap files
C Hashed tables
D Relational databases: A
6. How were data retrieved before database management systems?
A Randomly from linked files
B Sequentially from simple files
C Using set operations on complex files
D Using relationships between logical entities: B
7. In which two ways does a database management system
environment in- crease effectiveness in working with data?
A It enables data sharing.
B It duplicates redundant data for security.
C It permits storage of vast volumes of data.
, D It increases the complexity rules by which data is organized.: A, C
8. What is the uniquely identifiable element about which data can
be catego- rized in an entity-relationship diagram?
A Entity types
B Primary keys
C Unary relationships
D Intersection data points: A
9. Which classification is correct for the box marked "Quantity" in
the given entity-
relationship diagram?
A Quantity data
B Modality data
C Intersection data
D Product sales data: C
10. Which data classification is an entity?
A Event
Questions and Answers
1. What is a broad definition of data?
A Numbers that are captured on digital media
B Raw facts that are captured on printed or digital media
C Alphanumeric combinations that can be captured on media that a
computer can read
D Any information that can be transferred from print to digital: B
2. What are data?
A Facts that have been organized in a meaningful way
B Facts that are the result of a query of a database system
C Facts that are collected and stored in a database system
D Facts that have been processed and used for decision making: C
3. What is a determining characteristic of unstructured data?
A It does not allow copying and pasting.
B It is easy to query and retrieve by business applications.
C It does not follow a data model.
D It is stored in rows and columns.: C
,4. Which is true about flat files?
A They contain no internal hierarchical organization.
B They have a limit of 256 records.
C They can only contain two-dimensional data.
D They are always encrypted.: A
5. Which technology has no internal hierarchy?
A Flat files
B Heap files
C Hashed tables
D Relational databases: A
6. How were data retrieved before database management systems?
A Randomly from linked files
B Sequentially from simple files
C Using set operations on complex files
D Using relationships between logical entities: B
7. In which two ways does a database management system
environment in- crease effectiveness in working with data?
A It enables data sharing.
B It duplicates redundant data for security.
C It permits storage of vast volumes of data.
, D It increases the complexity rules by which data is organized.: A, C
8. What is the uniquely identifiable element about which data can
be catego- rized in an entity-relationship diagram?
A Entity types
B Primary keys
C Unary relationships
D Intersection data points: A
9. Which classification is correct for the box marked "Quantity" in
the given entity-
relationship diagram?
A Quantity data
B Modality data
C Intersection data
D Product sales data: C
10. Which data classification is an entity?
A Event
