WGU D467 Exploring Data Objective Assessment | OA 3rd Attempt |
Questions and Answers | 2026 Update | 100% Correct.
Comprehensive OA Question Bank
Data Exploration, Modeling, and Management**
Section 1: Data Collection & Data Sources
1. Which activity represents the foundational step in the data analysis process?
A. Data visualization
B. Data cleaning
C. Data collection
D. Data modeling
✅ Answer: C
2. An organization collects customer purchase data directly from its own website using cookies. What
type of data is this?
A. Third-party data
B. Second-party data
C. First-party data
D. Proxy data
✅ Answer: C
3. Which type of data source is generally the least reliable due to unknown origins?
A. First-party
B. Second-party
C. Third-party
D. Internal data
✅ Answer: C
4. Why is planning critical before collecting data?
A. To reduce storage costs
B. To ensure relevance, accuracy, and trustworthy results
C. To guarantee structured data
D. To eliminate all bias
✅ Answer: B
,Section 2: Data Categorization & Types
5. Which type of data represents measurable values such as temperature or height?
A. Discrete
B. Nominal
C. Continuous
D. Ordinal
✅ Answer: C
6. A dataset containing the number of students in each class is best classified as:
A. Continuous quantitative
B. Discrete quantitative
C. Nominal qualitative
D. Ordinal qualitative
✅ Answer: B
7. Which data type includes categories without a natural order?
A. Ordinal
B. Discrete
C. Nominal
D. Continuous
✅ Answer: C
8. Movie ratings such as “poor,” “average,” and “excellent” are examples of:
A. Nominal data
B. Continuous data
C. Ordinal data
D. Discrete data
✅ Answer: C
9. Which characteristic best describes structured data?
A. Stored as images and videos
B. Lacks predefined format
C. Organized in rows and columns
D. Cannot be queried
✅ Answer: C
, 10. Social media comments and emails are examples of:
A. Structured data
B. Semi-structured data
C. Unstructured data
D. Quantitative data
✅ Answer: C
Section 3: Data Modeling
11. What is the primary purpose of data modeling?
A. Encrypt data
B. Visualize how data is organized and related
C. Remove duplicates
D. Convert data formats
✅ Answer: B
12. Which type of data model provides a high-level organizational view of data interactions?
A. Physical
B. Logical
C. Conceptual
D. Relational
✅ Answer: C
13. Which data modeling level focuses on attributes, entities, and relationships?
A. Conceptual
B. Logical
C. Physical
D. Operational
✅ Answer: B
14. What tool is commonly used to represent entities and their relationships?
A. CSV
B. Pivot table
C. ERD
D. SQL
✅ Answer: C
Questions and Answers | 2026 Update | 100% Correct.
Comprehensive OA Question Bank
Data Exploration, Modeling, and Management**
Section 1: Data Collection & Data Sources
1. Which activity represents the foundational step in the data analysis process?
A. Data visualization
B. Data cleaning
C. Data collection
D. Data modeling
✅ Answer: C
2. An organization collects customer purchase data directly from its own website using cookies. What
type of data is this?
A. Third-party data
B. Second-party data
C. First-party data
D. Proxy data
✅ Answer: C
3. Which type of data source is generally the least reliable due to unknown origins?
A. First-party
B. Second-party
C. Third-party
D. Internal data
✅ Answer: C
4. Why is planning critical before collecting data?
A. To reduce storage costs
B. To ensure relevance, accuracy, and trustworthy results
C. To guarantee structured data
D. To eliminate all bias
✅ Answer: B
,Section 2: Data Categorization & Types
5. Which type of data represents measurable values such as temperature or height?
A. Discrete
B. Nominal
C. Continuous
D. Ordinal
✅ Answer: C
6. A dataset containing the number of students in each class is best classified as:
A. Continuous quantitative
B. Discrete quantitative
C. Nominal qualitative
D. Ordinal qualitative
✅ Answer: B
7. Which data type includes categories without a natural order?
A. Ordinal
B. Discrete
C. Nominal
D. Continuous
✅ Answer: C
8. Movie ratings such as “poor,” “average,” and “excellent” are examples of:
A. Nominal data
B. Continuous data
C. Ordinal data
D. Discrete data
✅ Answer: C
9. Which characteristic best describes structured data?
A. Stored as images and videos
B. Lacks predefined format
C. Organized in rows and columns
D. Cannot be queried
✅ Answer: C
, 10. Social media comments and emails are examples of:
A. Structured data
B. Semi-structured data
C. Unstructured data
D. Quantitative data
✅ Answer: C
Section 3: Data Modeling
11. What is the primary purpose of data modeling?
A. Encrypt data
B. Visualize how data is organized and related
C. Remove duplicates
D. Convert data formats
✅ Answer: B
12. Which type of data model provides a high-level organizational view of data interactions?
A. Physical
B. Logical
C. Conceptual
D. Relational
✅ Answer: C
13. Which data modeling level focuses on attributes, entities, and relationships?
A. Conceptual
B. Logical
C. Physical
D. Operational
✅ Answer: B
14. What tool is commonly used to represent entities and their relationships?
A. CSV
B. Pivot table
C. ERD
D. SQL
✅ Answer: C
