36 practice questions with answers for Business Analytics interviews in Kochi.
Business Analytics jobs in Kochi
Kochi's Infopark and SmartCity host IT-services firms, product companies and start-ups, making it Kerala's largest tech job market along with Thiruvananthapuram. Testing and data roles are common in its service and product teams.
Below are 36 questions that match the mix of service, product and domain employers hiring business analysts in Kochi.
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01
The totals in your Excel report differ from the finance system by a few rupees. What could cause this?
Usually rounding. Excel may display rounded values while summing the full-precision numbers, or line items were rounded individually in the source system and the total was computed differently. Check whether finance rounds each invoice line before summing, and apply ROUND at the same level in Excel. Other causes include floating-point artifacts, values stored as text being skipped by SUM, or hidden filtered rows. Agree and document one rounding rule with finance.
02
How do you build a PivotTable to analyse sales by region and product?
A model classifying features as basic, performance or delight attributes based on how they affect customer satisfaction, helping decide what to build first.
04
What is the difference between system testing, SIT and UAT?
System testing is done by the QA team to verify that one system works against its functional and non-functional specifications. SIT (system integration testing) checks that connected systems exchange data correctly, such as CRM to billing to payment gateway. UAT (user acceptance testing) is done by business users to confirm the solution supports real business processes and is ready for go-live. UAT asks whether this is fit for our business, not just whether it matches the specification.
05
What do interviewers evaluate in a business case interview?
They assess how you think, not just the final answer. Key areas are clarifying the problem before solving, building a clear and MECE structure, handling numbers accurately with sanity checks, using business sense to prioritise, adapting to new information, and ending with a crisp recommendation with risks and next steps. Thinking aloud and communicating clearly matter as much as getting the right number.
06
How is a product owner's role different from a business analyst's role?
The product owner owns the product vision and the backlog order, makes final priority decisions and accepts completed work on behalf of the business. The business analyst works on understanding problems in depth: eliciting and analysing requirements, modelling processes and data, writing detailed stories and acceptance criteria and supporting the team and testers. In smaller teams one person may do both, but the PO decides what, while the BA clarifies how it should work.
07
What is AS-IS and TO-BE process modelling, and where does BPMN fit in?
AS-IS modelling documents how a process works today, including pain points, delays and handoffs. TO-BE modelling shows the improved future process after changes or a new system. Comparing the two reveals the gaps and requirements. BPMN, Business Process Model and Notation, is the standard notation, using events, tasks, gateways for decisions and swimlanes for roles, so both business and IT read the diagrams the same way.
08
A manager says the dashboard total does not match the finance team's Excel sheet. What do you do?
First agree on the definition: date range, gross or net, tax, returns, currency and which date (order or invoice) is used. Then reconcile at a small grain, such as one month and one region, comparing row counts and sums between the source query and the sheet. Common causes are filters on the page, missing relationships, duplicate rows after a join or a late refresh. Document the agreed definition in the report tooltip.
A balanced scorecard is a strategic performance framework that tracks objectives and KPIs across four perspectives: financial (revenue growth, margin), customer (NPS, retention), internal processes (cycle time, defect rate) and learning and growth (training hours, employee engagement). The idea is that financial results are lagging, so leaders also need leading measures of what drives future performance. A strategy map links the objectives with cause-and-effect arrows from people to processes to customers to financial outcomes.
10
Write a SQL query to list customers who have never placed an order.
SELECT c.customer_id, c.name
FROM customers c
LEFT JOIN orders o ON o.customer_id = c.customer_id
WHERE o.order_id IS NULL;
-- alternative
SELECT customer_id, name FROM customers c
WHERE NOT EXISTS (
SELECT 1 FROM orders o WHERE o.customer_id = c.customer_id
);
11
Two analysts report different monthly active user numbers from the same database. How do you resolve it?
Put both queries side by side and compare definitions: which events count as active, time zone, calendar versus rolling month, test and internal accounts, deleted users, and DISTINCT on user ID versus device ID. Run both on a single day to find where they diverge. Agree on one definition with the metric owner, document it, and publish it as a shared view or metric so everyone queries the same logic.
ROI (return on investment) is the gain from a specific investment divided by its cost and is used to judge projects or campaigns. ROE (return on equity) is net profit divided by shareholders' equity and shows the return to owners; high debt can inflate it. ROCE (return on capital employed) is EBIT divided by equity plus long-term debt and shows how efficiently all long-term capital is used. ROCE is better for comparing companies with different debt levels.
A relative reference like A1 shifts when the formula is copied. An absolute reference like $A$1 stays fixed, useful for a tax rate or target cell. A mixed reference fixes only the column ($A1) or only the row (A$1), which is handy in multiplication grids or when copying a formula across months and products. Press F4 to cycle through the four options while editing a formula.
15
A stakeholder's only requirement is 'make the app faster'. How do you turn this into clear requirements?
Ask which screens or actions feel slow, for which users, on which devices and networks, and how it affects the business, such as checkout drop-off. Gather current timings from monitoring data. Then write measurable non-functional requirements, for example 'the search results page loads within 2 seconds for 95 percent of requests on a 4G connection'. Confirm targets with the stakeholder and agree how they will be tested.
16
How would you estimate the market size for an electric scooter in India?
BPMN (Business Process Model and Notation) is a standard graphical notation, maintained by the OMG, for drawing business processes. Business analysts use it because business users, developers and process owners can all read the same diagram. It shows who does what, in which order, with which decisions and messages. A BPMN 2.0 model can also be executed by workflow engines, so the same diagram can move from analysis to automation with less rework.
20
What is the difference between COUNT(*) and COUNT(column)?
A self join joins a table to itself using two aliases, so you can compare rows within the same table. A classic business example is an employees table with a manager_id column: joining employees e to employees m on e.manager_id = m.employee_id lists each employee with their manager's name. Another example is finding customers who placed two orders on the same day by joining orders to orders on customer_id and date with different order IDs.
Start with the main conclusion or recommendation, then give the two or three supporting reasons, and only then the detailed data. Senior stakeholders have little time, so a summary like 'Churn rose because of payment failures; fixing retries can save 4 lakh a month' should come first. Detail goes in the appendix. It is the opposite of a chronological walk through every step of the analysis.
25
What are leading and lagging indicators? Give examples.
Lagging indicators measure outcomes after they happen, such as monthly revenue, profit or churn. They confirm results but are hard to influence directly. Leading indicators move earlier and predict outcomes, such as demo bookings, trial activations, cart additions or support ticket backlog. A good KPI set pairs them: a sales team tracks qualified pipeline (leading) along with closed revenue (lagging) so it can act before the quarter ends.
26
Where do you see yourself in five years as a business analyst?
Show ambition that fits the role. For example: in five years I see myself as a senior business analyst who owns a business domain, such as payments or supply chain, leads requirement and analytics work for major initiatives and mentors juniors. To get there I am building strong SQL and Power BI skills, learning the domain deeply and taking on more stakeholder-facing work. I would like to grow that path within this organisation.
Start from the test cases and list the data each needs: customer types, product variants, edge values and historical records. Decide whether to use masked copies of production data, synthetic data or both, because real personal data must be anonymised under data protection rules such as the DPDP Act. Prepare data for negative and boundary cases, keep a refresh plan for repeated cycles, and assign owners. Poor test data is one of the most common causes of blocked UAT days.
28
Tell me about a time you challenged how a metric was defined.
Situation: our team reported 'conversion' as orders divided by sessions, and it looked healthy while revenue was flat. Task: understand the gap. Action: I showed that repeated sessions from bots and app refreshes inflated the denominator inconsistently, and proposed user-level conversion excluding internal and bot traffic. I presented both definitions with a month of data to the product head. Result: the new definition was adopted, and it exposed a checkout drop that the team then fixed.
29
What are MRR and ARR, and how do you calculate net revenue retention?
MRR is monthly recurring revenue from active subscriptions; ARR is the annualised figure, usually MRR times 12. Net revenue retention measures revenue kept from an existing customer cohort over 12 months: (starting MRR + expansion - contraction - churned MRR) / starting MRR. Example: 100 lakh start, plus 15 expansion, minus 5 contraction, minus 8 churn gives 102 percent. Above 100 percent means existing customers grow revenue even without new sales.
30
What is the difference between accrual accounting and cash accounting?
Under accrual accounting, revenue is recorded when it is earned and expenses when they are incurred, regardless of when cash moves. Under cash accounting, transactions are recorded only when cash is received or paid. Companies in India report under accrual-based standards (Ind AS). Example: an annual software contract billed in April is recognised as revenue month by month over 12 months under accrual, even though all the cash came in April.
31
What is User Acceptance Testing (UAT) and what is the BA's role in it?
UAT is the final testing phase where real business users check that the system supports their work and meets requirements before go-live. The BA helps plan UAT, prepares business scenarios and test cases from requirements, arranges test data, supports users during testing, triages defects versus change requests and tracks sign-off. UAT is not about finding code bugs, which earlier testing should have caught.
32
A ride-hailing app's ride cancellation rate rose from 8 to 14 percent. How would you structure the problem?
First split by who cancels: riders or drivers. For rider cancellations, check wait times, pickup accuracy, price surges and changes in ETA. For driver cancellations, check trip distance, payment mode, low fares, destination visibility and incentive changes. Then segment by city, time of day and area. Link to recent changes like a new pricing rule. Recommend fixes for the largest driver, such as better matching or adjusted incentives.
33
How do you calculate monthly revenue growth in SQL?
# B1 = discount rate (for example 12%)
# B2 = initial investment entered as a negative number
# B3:B7 = cash inflows for years 1 to 5
=NPV(B1, B3:B7) + B2
# NPV() assumes the first value comes at the end of year 1,
# so the year-0 investment is added outside the function.
35
Describe a BPMN model for a purchase order process where credit check and stock check happen at the same time.
Start event: purchase order received. Task: validate order details. A parallel gateway then splits into two paths: Finance lane runs Check customer credit, Warehouse lane runs Check stock. A second parallel gateway joins them, waiting for both to complete. An exclusive gateway then decides: credit OK and stock available goes to Confirm order and Schedule dispatch; otherwise go to Notify customer with reason. Using a parallel join here is correct because both results are always needed.
Which companies hire Business Analytics professionals in Kochi?
Companies with large offices in Kochi include EY, UST, Grant Thornton Bharat. Use their company pages below to practise employer-specific sets.
Are Business Analytics interviews in Kochi different from other cities?
The questions depend more on the company than the city. Kochi's mix of employers decides the style: Testing and data roles are common in its service and product teams
How do I find Business Analytics jobs in Kochi?
Shortlist companies with Kochi offices, keep your CV focused on Business Analytics projects, apply on company career pages and job portals with the Kochi filter, and practise the questions on this page before each interview.