DA0-002 Data Acquisition and Preparation Practice Question
A small business wants to acquire customer feedback through a short questionnaire emailed after purchase. Which data acquisition method does this represent?
⚠ Common exam trap
A common mix-up: candidates confuse a survey with a transaction log because both can be automated and delivered electronically, but a transaction log captures system events, not user-provided feedback.
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
✓
Survey
A survey is a structured data collection method where respondents answer predefined questions, typically via a form or questionnaire. In this scenario, the business is using a short questionnaire emailed after purchase to gather customer feedback, which directly aligns with the definition of a survey as a data acquisition method.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Transaction log
Why it's wrong here
Transaction logs record system events such as purchases automatically, capturing behaviour rather than solicited opinions. Emailing a questionnaire collects self-reported answers, which is survey data. The option tempts because purchases generate the log entries that trigger the email, yet the log itself never contains the customer's feedback.
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Interview
Why it's wrong here
Interviews are conducted verbally by a researcher, typically one-to-one, with follow-up probing. The scenario distributes a short written questionnaire by email, which is survey data. Interviews tempt because both elicit opinions directly, but no interviewer asks questions or records responses in this asynchronous written method.
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Survey
Why this is correct
A short questionnaire emailed after purchase is a survey: structured questions distributed to respondents for self-completion. It differs from observation, which records behaviour directly, and from interviews, which are conducted interactively. This satisfies the stem's requirement for acquiring customer feedback at scale.
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Observation
Why it's wrong here
Observation means a researcher watches or records behaviour directly, without asking questions. The scenario has customers completing and returning a questionnaire, making it survey data. Observation tempts because feedback is gathered after purchase, but no behaviour is watched; the respondent supplies answers themselves.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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