Data Analyst Interview Prep · Practice set 1 of 1
Interview Loop and Assessment Criteria: 10 practice questions
10 free Data Analyst Interview Prep practice questions on Interview Loop and Assessment Criteria, with an explanation for every answer. Untimed. The full mock exam and the timed version are in the app.
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Question 1 of 10
A recruiter describes the vacancy and asks what a data analyst is accountable for. Which answer matches the published role?
- ACollecting, managing, exploring and sharing data so the organisation can act on it.
- BAdministering the database servers, their backups and their access requests.
- CBuilding and running the pipelines that move data into the warehouse for other teams.
- DDesigning prediction models and keeping them running inside the product.
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The analyst owns the whole path from collecting data to sharing it, and the purpose of that path is a decision the organisation needs. Naming one stage of a neighbouring job describes a different role, not a narrower version of this one.
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Question 2 of 10
You have one week to prepare and a long list of tools, projects and articles you could revise. What should decide the order?
- AYour most recent project, because you can recall its detail without notes.
- BThe employer's latest product news, so your answers sound current.
- CThe job description: it names the skills the panel will assess.
- DYour weakest tool, because the gaps are what need practice time.
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The job description identifies the skills most relevant to this role, so it tells you which examples are worth rehearsing. Drilling a weak tool, reusing the freshest project or reading product news can all help later, but none of them points to the skills this role needs most.
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Question 3 of 10
Your recruiter confirms a second stage but does not describe it. Which question gives you the most useful information for preparing?
- AWhich programming language I should practise before the coding exercise.
- BWhich of my past projects the panel would most like me to walk through in detail.
- CWhether it is a discussion, coding, a portfolio review or a work sample.
- DHow many interviewers will join the call and how long the session runs.
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Those four formats need different preparation: rehearsing a walkthrough does not get you ready to code under time. The first two questions only help once you know the format, and the third only covers logistics, so ask about the format first.
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Question 4 of 10
The interviewer says only: tell us why orders fell last month. Nothing else is specified and the round lasts 45 minutes. What do you do first?
- AAsk for a longer round, since the question cannot be answered in 45 minutes.
- BOpen the largest order table and describe what you see while you look for the drop.
- CTake the most common definition of an order and mention that choice in your final summary.
- DAsk which orders, which period and which audience count, and state the assumptions you cannot confirm.
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An ambiguous brief has several defensible answers, so the first minutes are worth spending on removing the ambiguity and saying out loud what you are assuming. Exploring, silently picking a definition or asking for more time all commit you before anyone has agreed what the question means.
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Question 5 of 10
You reach the correct result and present a clean final table, but you worked in silence. The panel says it cannot score your problem solving. What was missing?
- AA chart that presents the final table more clearly to the panel.
- BA second method that lands on the same number as the first.
- CTalking through the approach and why you chose each tool.
- DA faster solution that would have left time for questions.
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A correct output shows where you arrived, not how you got there, and interviewers also assess how you approach the problem. Naming the tool and the reason for it makes that visible. A cross-check, a nicer chart or spare time all improve the delivery while leaving the reasoning hidden.
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Keep the ones you got wrong
In the app, every question you miss comes back exactly when you’re about to forget it.
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Question 6 of 10
You describe the situation, the task you were given, the steps you took and the result you reached. Which addition completes the structure the guidance recommends?
- AMore background about the organisation and the team you joined.
- BThe same result once more, this time supported by a chart.
- CWhat you learned and would do differently next time.
- DA fuller account of the task you were assigned and its deadline.
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The closing R is reflection, and it is the part an interviewer cannot infer from the story: what the experience taught you and how you would act next time. Background, task detail and a second view of the result all expand parts you have already given.
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Question 7 of 10
Two candidates hand in the same correct result. One explains how they framed the problem and what they checked; the other shows only the result. Why can the panel score them differently?
- AA result counts only once a second person has reproduced it.
- BPresentation quality is scored separately from the technical work.
- CA technical round scores the problem solving, not only the answer.
- DThe panel favours whoever finished the exercise in the shortest time.
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Technical rounds assess how you break a problem down and which methods you reach for, alongside the answer itself, so two identical outputs can still carry different evidence. Speed, independent reproduction and presentation may all be discussed, but none of them is what separates these two candidates.
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Question 8 of 10
Two minutes are left. A business manager has to decide today and an analyst wants to know why one data check failed. You cannot serve both in full. What do you say?
- AMove the detail offline and use the time to repeat the main finding.
- BExplain the failed check in full, since nobody should decide on weak evidence.
- CGive the decision and its limit in plain words, then the detail on request.
- DGive the headline result and leave the failed check for the written follow-up.
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Different stakeholders need the same conclusion in different forms, so the decision and the limit that touches it go first, and the mechanism goes to whoever asks for it. Choosing one listener, hiding the failed check or repeating the headline each leave somebody in the room unable to act.
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Question 9 of 10
A boundary case fails two minutes before the round ends. The interviewer asks what your result supports. Which answer is strongest?
- AExplain that the case is an edge condition that is unlikely to occur in real data.
- BName the failing case, limit the conclusion to what passed, and say what you would check next.
- CReport what passed and mention the failure in the follow-up email.
- DName the failing case and use the time left to try a fix.
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Testing your own solution is part of the work, so an unfinished check is information the panel wants rather than a mark against you. Saying what failed, what the conclusion still covers and what comes next keeps the claim the size of the evidence. Rushing a fix, deferring the news or waving the case away all claim more than you verified.
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Question 10 of 10
A practice round went badly and you have one hour before the next one. You cannot rehearse everything. How do you choose what to work on?
- ARun the whole exercise again from the start until it feels smoother.
- BRehearse the opening answer, since the first impression carries the most weight.
- CSplit the attempt into framing, correctness, validation and communication, then fix the weakest.
- DRevise the technical topic that came up in the exercise you were given.
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A general feeling that it went badly is not something you can act on in an hour. Separating framing, technical correctness, validation and communication turns the attempt into parts you can compare, so the hour goes to the one that actually failed. Repeating everything, polishing the opening or revising one topic all assume the answer first.
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You’ve finished this set
That’s 10 questions on Interview Loop and Assessment Criteria. In the app the ones you miss come back exactly when you’re about to forget them.
