DA0-002 Data Concepts and Environments Practice Question
Which TWO of the following are considered internal data sources within an organization?
⚠ Common exam trap
It's easy for candidates to confuse 'data used internally' with 'internal data source,' mistakenly selecting options like social media feeds or third-party reports because the organization uses them for analysis, even though they originate externally.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Employee payroll data
Employee payroll data (B) is a correct answer because it is generated and maintained internally by the organization's HR and finance systems, containing confidential compensation, tax withholding, and benefits information that never originates outside the company. Sales transaction records (D) are also correct because they are produced by the organization's own point-of-sale, e-commerce, or ERP systems and capture internal order, revenue, and customer purchase activity. By contrast, social media feeds (A), government census data (C), and third-party market research reports (E) are all external data sources, since they are created and published by outside parties such as social platforms, government statistical agencies, and independent research firms rather than by the organization itself.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Social media feeds
Why it's wrong here
Social media feeds are generated by external users on external platforms, so they are external data, not internal. Internal sources are the organisation's own operational systems, such as transaction logs or HR records. The option tempts because marketing teams routinely harvest social feeds for sentiment analysis.
- ✓
Employee payroll data
Why this is correct
Employee payroll data originates inside the organisation, generated by HR and finance systems, so it satisfies the stem's requirement for an internal source. Unlike external feeds such as government statistics or purchased market research, payroll records are owned and maintained by the organisation itself, making them a canonical internal data source.
- ✗
Government census data
Why it's wrong here
Government census data originates outside the organisation, making it an external source, not an internal one. It is tempting because census datasets are freely usable and often blended with internal records, but internal sources are systems the organisation itself owns, such as its CRM or ERP.
- ✓
Sales transaction records
Why this is correct
Sales transaction records are generated within the organisation's own systems, such as its point-of-sale or ERP platforms, and remain under its direct control. This satisfies the stem's internal-source constraint, distinguishing them from external sources like purchased market research or government datasets.
- ✗
Market research reports from third parties
Why it's wrong here
Third-party market research originates outside the organisation, so it cannot be an internal source; internal sources are systems and records the organisation itself generates, such as its CRM or ERP data. It tempts because purchased reports feed market analysis, yet they remain external data.
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