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CRED Business Analytics Interview Questions & Answers

Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.

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01

SQL: total revenue per month.

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SELECT DATE_TRUNC('month', order_date) AS month, SUM(amount) AS revenue FROM orders GROUP BY 1 ORDER BY 1; -- MySQL: DATE_FORMAT(order_date, '%Y-%m')
02

Agile vs Waterfall?

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Waterfall runs fixed phases one after another with requirements frozen early. Agile delivers in short sprints with continuous feedback, so requirements can change. In Agile, BAs maintain the backlog and user stories.
03

Which Excel functions do business analysts use daily?

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VLOOKUP or XLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, IF, text functions, PivotTables and charts.
04

How do you chart a trend with a target line?

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Create a line or column chart of actuals and add the target as another series formatted as a line.
05

BRD vs FRD?

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A BRD states what the business needs and why. An FRD details how the system should behave to meet those needs (functional specifications).
06

How would you build a simple financial model in Excel?

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Separate inputs, calculations and outputs, link all formulas to input cells, add scenarios and checks, and avoid hard-coded numbers inside formulas.
07

How do you find duplicate customers?

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SELECT email, COUNT(*) FROM customers GROUP BY email HAVING COUNT(*) > 1;
08

How would you analyse the declining sales of a retail store?

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Break sales into footfall, conversion and average basket, compare with last year and competitors, and check stock, pricing, staffing and local events.
09

What is the role of a BA in Scrum?

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They help the Product Owner refine the backlog, write stories and acceptance criteria, clarify details with developers and support testing and demos.
10

What is sensitivity analysis?

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Testing how changes in key inputs such as price or volume affect the output, in Excel using data tables or scenario manager.
11

How do you evaluate a marketing campaign's ROI?

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ROI = (incremental profit - campaign cost) / campaign cost. Measure incremental sales using a control group or before-after comparison.
12

What does a Business Analyst do?

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A BA bridges business and technology: gathers requirements, analyses data and processes, documents BRD/FRD and makes sure the final solution actually solves the business problem.
13

What are fixed costs and variable costs?

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Fixed costs stay constant regardless of volume, such as rent; variable costs change with volume, such as raw materials.
14

How do you prioritise requirements?

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Use MoSCoW (Must, Should, Could, Won't), value versus effort scoring or the Kano model, agreed with stakeholders based on business value and risk.
15

How do you approach a guesstimate question?

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Clarify the scope, break the problem into logical parts, state assumptions with round numbers, compute step by step and sanity-check the answer.
16

Tell me about a time you handled a difficult stakeholder.

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Use STAR: Situation, Task, Action, Result. Show that you listened, found the underlying goal, used data to align people and reached a documented decision.
17

What is Kano model in prioritisation?

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A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.
18

Revenue grew but profit fell. Why could that happen?

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Look at the cost side: heavier discounts, higher CAC, logistics costs, product mix shifting to low-margin items, one-time expenses or pricing changes. Break contribution margin down by segment.
19

XLOOKUP vs VLOOKUP?

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XLOOKUP can look left or right, uses exact match by default, returns a custom value if nothing is found and doesn't break when columns move. VLOOKUP only looks right and needs a column number.
20

What is Power Pivot?

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An Excel add-in for building data models with relationships and DAX measures over millions of rows, beyond normal worksheet limits.
21

Stakeholders give conflicting requirements. What do you do?

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Clarify the goal behind each request, map them to business objectives, prioritise with MoSCoW, run a joint session, then document the decision and get sign-off.
22

How would you forecast next quarter's sales in Excel?

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Use FORECAST.ETS or a trendline on monthly history, check seasonality, compare with a simple moving average and present a range, not a single number.
23

How do you validate data before analysis?

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Check row counts against the source, nulls, duplicates on keys, value ranges, date coverage and that totals reconcile with finance reports.
24

What is the profit equation and how do you use it in cases?

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Profit = Revenue minus Cost, where revenue = price x volume and cost = fixed + variable. Split each part to find which one explains a change.
25

What is the 80/20 rule in business analysis?

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Pareto principle: about 80% of outcomes come from 20% of causes, such as most revenue from a few customers or most defects from a few issues.
26

What are the 4 Ps of marketing?

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Product, Price, Place and Promotion, the levers a business uses to bring an offering to market.
27

A food delivery company's orders fell 15%. How do you investigate?

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Check data accuracy, then segment by city, restaurant, time and user type; look at supply, delivery time, pricing, competitors and seasonality before proposing fixes.
28

KPI vs metric?

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Every KPI is a metric, but a KPI is tied directly to a strategic goal (e.g. monthly churn). A metric can be any measurement (e.g. page views).
29

Guesstimate: how many cups of tea are sold in Delhi per day?

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Population about 20 million, adult tea drinkers about 50%, cups bought outside per person around 1 on average. This gives roughly 10 million cups, then adjust for offices and stalls.
30

SQL: top 5 customers by spend.

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SELECT customer_id, SUM(amount) AS spend FROM orders GROUP BY customer_id ORDER BY spend DESC LIMIT 5;
31

How do you find the top 5 customers by revenue?

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SELECT customer_id, SUM(amount) AS revenue FROM orders GROUP BY customer_id ORDER BY revenue DESC LIMIT 5;
32

How would you decide whether to launch a new product?

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Assess market size and demand, customer need, competition, unit economics, capabilities, risks and strategic fit, then test with a pilot before scale-up.
33

How do you build a PivotTable to analyse sales by region and product?

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Create a table, insert a PivotTable, drag region to rows, product to columns, sales to values, and add slicers for month or channel.
34

Explain Porter's Five Forces.

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A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.
35

How do you build a forecast in Excel?

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Use historical data with FORECAST.ETS or trend lines, state assumptions, compare against actuals and show best, base and worst scenarios.
36

What is gap analysis?

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Compare the current state (as-is) with the desired state (to-be), list the gaps in process, people or technology, and plan actions to close them.
37

Write a user story with acceptance criteria for password reset.

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As a customer, I want to reset my password by email so that I can get back into my account. Acceptance criteria: • Reset link expires in 15 minutes • Password rules are shown while typing • A success message appears after reset
38

SQL: month-over-month revenue growth.

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WITH m AS (SELECT month, SUM(amount) AS rev FROM orders GROUP BY month) SELECT month, rev, ROUND(100.0 * (rev - LAG(rev) OVER (ORDER BY month)) / LAG(rev) OVER (ORDER BY month), 1) AS mom_pct FROM m;
39

What is a break-even point?

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The sales volume where total revenue equals total cost. It equals fixed cost divided by contribution margin per unit.
40

Use case vs user story?

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A use case describes the full interaction between an actor and the system (main and alternate flows). A user story is a short statement of need from the user's point of view, refined with acceptance criteria.
41

How would you price a new subscription product?

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Combine cost-plus, competitor benchmarks and willingness to pay from research, test tiers with experiments and check margin and churn impact.
42

Guesstimate: how many cars are sold in India every year?

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Structure it: households × car-owning share ÷ replacement cycle + first-time buyers + commercial fleet. State each assumption clearly and sanity-check the final number.
43

How do you estimate the annual revenue of a coffee shop chain?

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Number of outlets x daily customers x average bill x operating days, then validate using footfall, peak hours and similar chains.
44

What is the use of the IFERROR function?

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It returns a custom value when a formula errors out, keeping reports clean, for example =IFERROR(VLOOKUP(...), "Not found").
45

What are wireframes and why are they useful for a BA?

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Low-fidelity layouts of screens that help stakeholders visualise and agree on requirements before development starts.
46

How do you manage conflicting requirements from two senior stakeholders?

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Clarify the underlying goals, present data and trade-offs, facilitate a joint session, escalate to the sponsor if needed and document the agreed decision.
47

How would you measure the success of a new feature?

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Define a goal metric, a baseline and guardrail metrics, run an experiment or before-after comparison and review adoption, retention and revenue impact.
48

How do you write a query to find users active in consecutive months?

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Get distinct user-month pairs, self-join or use LAG on month per user, and keep rows where the previous month is exactly one month earlier.
49

A client's profits are falling. How do you structure the problem?

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Split into revenue and cost, then revenue into price, volume and mix, and cost into fixed and variable; check internal factors and external market factors.
50

What is customer lifetime value?

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The total profit expected from a customer over the relationship, roughly average margin x purchase frequency x lifespan, compared with acquisition cost.
51

What are aggregate functions?

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Functions that summarise rows into a value, such as COUNT, SUM, AVG, MIN and MAX.
52

What is a traceability matrix?

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A table linking each requirement to design, test cases and delivery status, ensuring nothing is missed and helping assess change impact.
53

What does GROUP BY do and how is HAVING different from WHERE?

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GROUP BY aggregates rows by column; WHERE filters before grouping and HAVING filters after, using aggregate conditions.
54

What is a stakeholder and who are the typical stakeholders in a project?

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Anyone affected by or influencing the project: sponsors, product owners, end users, developers, testers, operations and customers.
55

What is the difference between revenue and profit?

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Revenue is total money from sales; profit is what remains after subtracting all costs and expenses.
56

What is a KPI tree?

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It breaks a top metric into drivers: Revenue = Users × Conversion × AOV; Users = New + Returning, and so on. It shows which lever to pull and where a drop came from.
57

What is a data table in Excel?

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A what-if tool that recalculates a formula for different inputs, for example loan payments across different rates and tenures.
58

Which what-if analysis tools does Excel have?

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Goal Seek (find the input for a target output), Data Tables (see outputs for many inputs) and Scenario Manager (save best, base and worst cases).
59

What is a BRD review and who signs it off?

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Stakeholders and the sponsor review the Business Requirements Document for completeness and accuracy, and the business owner gives formal sign-off before design begins.
60

What is a primary key?

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A column or set of columns that uniquely identifies each row in a table and cannot contain NULL.
61

Build a break-even analysis in Excel.

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Break-even units = Fixed costs ÷ (Price − Variable cost per unit). Add a data table to test different price and volume scenarios.
62

How do you compute CAGR in Excel?

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CAGR = (End value / Start value)^(1/years) - 1, entered as =(B2/A2)^(1/n)-1.
63

How do you handle large datasets in Excel?

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Use tables, Power Query, remove volatile functions, filter before calculating and move to Power Pivot or a database when rows reach the millions.
64

What is scope creep and how do you control it?

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Uncontrolled growth of requirements. Control it with a clear scope statement, change control process, impact analysis and sponsor approval for additions.
65

What is a KPI and give examples for an e-commerce business?

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A measurable value showing progress to a goal, such as conversion rate, average order value, cart abandonment rate and customer retention.
66

How would you estimate the market size for an electric scooter in India?

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Top-down: two-wheeler market x EV share x addressable segment. Bottom-up: target households x adoption rate x price. Compare both for a sanity check.
67

How do you use Excel's Scenario Manager?

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Define named scenarios such as best, base and worst with different input values and compare the outputs in a summary report.
68

How do you validate that a report's numbers are correct?

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Reconcile totals with source tables using SQL, check filters and joins for duplication, compare with prior periods and verify with business owners.
69

What techniques do you use to elicit requirements?

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Interviews, workshops, surveys, observation, document analysis, prototyping and brainstorming, chosen according to stakeholders and project stage.
70

What is a feasibility study?

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An early assessment of whether a proposed solution is technically, economically, operationally and legally viable before committing budget.
71

What is root cause analysis and which techniques do you know?

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Finding the underlying reason for a problem using the 5 Whys, fishbone diagrams or Pareto analysis, then fixing the cause not the symptom.
72

Guesstimate: how many pizzas are sold in Mumbai on a weekend?

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About 20 million people, roughly 10% order pizza on a weekend, about 1 pizza per 2 people in an order. This gives roughly 1 million pizzas, adjusted for outlets and delivery capacity.
73

What is a SWOT analysis?

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A framework listing internal Strengths and Weaknesses and external Opportunities and Threats to assess a project or business position.
74

What is a use case diagram?

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A UML diagram showing actors and the actions (use cases) they perform with the system, giving a quick view of scope.
75

What are functional and non-functional requirements?

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Functional requirements describe what the system does (login, reports); non-functional ones describe how well it does it (speed, security, availability, usability).
76

Should a food-delivery app launch in a new city?

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Check market size (population, online ordering share), competition, restaurant supply, unit economics per order, CAC and payback period. Propose a pilot with clear success metrics.
77

What is a product backlog vs a sprint backlog?

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The product backlog is the ordered list of all desired work; the sprint backlog is the subset the team commits to in the current sprint.
78

What are acceptance criteria?

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Clear, testable conditions a story must meet to be accepted, often written as Given-When-Then scenarios.