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CompTIA Data+ Exam (2025) Sample Questions:

1. A data analyst needs to create a combined report that includes information from the following two tables:
Managers table
ID
First_name
Last_name
Job_title
1001
John
Doe
Manager
1002
Jane
Roe
Director
Non-managers table
ID
First_name
Last_name
Job_title
1003
Robert
Roe
Business Analyst
1004
Jane
Doe
Sales Representative
1005
John
Roe
Operations Analyst
Which of the following query methods should the analyst use for this task?

A) Join
B) Nested
C) Union
D) Group

2. A data analyst is generating a custom report for a Chief Executive Officer's executive meeting. Later, the analyst learns that other custom reports will be required for future executive meetings. Which of the following delivery methods should the analyst use?

A) Real-time
B) Self-service
C) Recurring
D) Ad hoc

3. Given the following table:
ID
Value
1
1.5
2
24.456
3
113
Which of the following data types should an analyst use for the numeric values in the Value column?

A) Double
B) Float
C) Boolean
D) Integer

4. A data analyst needs to identify outliers from a given dataset. Which of the following visualizations is the best way to identify outliers?

A) Box plot
B) Waterfall chart
C) Scatter plot
D) Gantt chart

5. A data analyst is working on an initial analysis of the dataset in the following table:
DateTime
Count
2024-01-01
12
2024-01-02
245
2024-01-02
13
2024-01-03
13
2024-01-03
12
00:00:00
12
Which of the following issues should the analyst flag in the data report?

A) Outlier
B) Completeness
C) Mismatch
D) Duplication

Solutions: