An analyst is troubleshooting a report where the total sales for Q3 are 15% lower than expected. The analyst has verified the SQL query logic and the data source connection. The next step is to check for data quality issues. Which systematic approach should the analyst take?

Change the query to use a different aggregation function, such as SUM instead of COUNT

Compare the row counts and totals in the source table against a known-good period to identify if data is missing or duplicated

Re-run the query multiple times to see if the result changes, as this will confirm the issue is transient

Assume the data is correct and focus on creating a new visualization to present the lower numbers

While running a SQL query, an analyst receives the error 'ORA-00942: table or view does not exist'. The analyst is certain the table exists. What is the most likely cause of this error?

The analyst is connected to the wrong database schema or lacks the necessary privileges to access the table

The SQL query has a syntax error in the SELECT clause

The table has been dropped and recreated with a different name

An analyst encounters an unfamiliar error message in a data analysis tool. Which online resource is most appropriate for finding a solution?

The tool's official documentation

During a team meeting, an analyst shares a preliminary finding about a data anomaly. A teammate suggests a different interpretation. What is the best way to handle this?

Change the topic to avoid conflict

Dismiss the suggestion immediately

Consider the teammate's perspective and discuss it

Agree with the teammate without question

CompTIAData+

Domain 3Objective 3

Troubleshoot Analysis Issues DA0-001 Practice Questions (Page 1)

Part of the Data analysis domain, which accounts for 24% of the DA0-001 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 3–5 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

7concepts

24%of the exam

Questions 1–5

1expert · hard
An analyst is troubleshooting a report where the total sales for Q3 are 15% lower than expected. The analyst has verified the SQL query logic and the data source connection. The next step is to check for data quality issues. Which systematic approach should the analyst take?
Select an answer first
2foundation · easy
An analyst is troubleshooting a data quality issue. According to a systematic problem-solving approach, what is the FIRST step the analyst should take?
Select an answer first
3application · medium
While running a SQL query, an analyst receives the error 'ORA-00942: table or view does not exist'. The analyst is certain the table exists. What is the most likely cause of this error?
Select an answer first
4foundation · easy
An analyst encounters an unfamiliar error message in a data analysis tool. Which online resource is most appropriate for finding a solution?
Select an answer first
5foundation · easy
During a team meeting, an analyst shares a preliminary finding about a data anomaly. A teammate suggests a different interpretation. What is the best way to handle this?
Select an answer first

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