Ericsson Business Analytics Interview Questions & Answers
Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About Ericsson hiring for Business Analytics roles
Ericsson is a Swedish telecommunications company that provides network equipment, software and services for mobile operators, including 4G and 5G radio, core networks and network management. In India it supports major telecom operators with network deployment and managed services, and runs research and development centres. It hires telecom engineers, software engineers, testers and network engineers.
For Business Analytics roles, this Ericsson practice set focuses most on UAT and BA Documentation (8), SQL for Business Analysis (5), Excel for Business Analysts (5), Requirements and Agile (5). It has 8 easy, 30 medium, 2 hard questions, so you can start easy and work up to the harder ones.
Company type
Telecom
Headquarters
Stockholm, Sweden
Main India offices
Gurugram, Bengaluru, Chennai, Noida, Kolkata
Ericsson Business Analytics interview process
Online assessment (aptitude + technical)
Technical interview
Managerial round
HR round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
Solved for EricssonStart practicing
3 QUESTIONS FREESign up to unlock the full question bank and track your progress.Unlock every question and answer, then continue practising company-wise and package-wise.
AARRR breaks the customer lifecycle into five stages: Acquisition, how users find you; Activation, their first good experience; Retention, whether they come back; Referral, whether they recommend you; and Revenue, whether they pay. Each stage gets one or two metrics, such as sign-ups by channel, activation rate, Day-30 retention, invite rate and conversion to paid. It helps find which stage is the weakest bottleneck.
Identify which documents are actually used: usually a product overview, process maps, business rules, data dictionary and integration details. Update those first rather than everything. Make documentation part of the Definition of Done, so a story is not complete until related docs are updated. Keep living documents in a shared wiki with owners and last-reviewed dates, and archive outdated files clearly. Test the result by having a new joiner use it during onboarding.
Working capital is current assets minus current liabilities, mainly receivables plus inventory minus payables. It is the money tied up in running daily operations. Too little means the company may struggle to pay suppliers and salaries; too much means cash is locked in slow inventory or unpaid customer invoices. Analysts track it because a growing business often needs more working capital, so fast growth can create cash shortages even when the business is profitable.
Test case ID: UAT-LOGIN-03. Precondition: registered customer with a verified mobile number. Steps: 1. Open the app and enter the registered mobile number. 2. Tap Send OTP. 3. Enter the 6-digit OTP received by SMS within 3 minutes. 4. Tap Verify. Expected result: the customer lands on the account dashboard, and the login is recorded in the activity log. Related negative cases: wrong OTP shows an error, and three wrong attempts lock login for 30 minutes.
08
Write a defect report for an invoice that calculates GST incorrectly.
Title: Invoice applies 12 percent GST instead of 18 percent for service items. Environment: UAT, build 2.4.1. Steps: create an order with service item SRV-101 at 1,000 rupees for a customer in Maharashtra and generate the invoice. Expected: CGST 90 and SGST 90, total 1,180. Actual: CGST 60 and SGST 60, total 1,120. Severity: high, as it affects tax compliance. Attachments: invoice PDF and screenshot. Linked requirement: FR-TAX-07.
Send an agenda with the goal and the decisions needed beforehand, along with any pre-read. Invite only people who contribute or decide. Start by restating the goal, keep to time, park off-topic issues and confirm decisions aloud. End by summarising actions with owners and dates. Send minutes within a day. A meeting without a clear decision or output usually could have been an email.
DELETE removes selected rows using a WHERE clause, logs each row and can usually be rolled back inside a transaction. TRUNCATE removes all rows quickly by deallocating data pages, keeps the table structure and normally resets identity counters; rollback behaviour depends on the database. DROP removes the whole table, including its structure, indexes and permissions. Analysts mostly use DELETE carefully on staging tables and should rarely need TRUNCATE or DROP on production data.
14
What are the steps to publish and share a Power BI report with your team?
Save the .pbix and click Publish, choosing the team workspace. In the Service, set data source credentials and, for on-premises data, configure the gateway. Schedule refresh. Then share by giving workspace access to editors, or package it as an app for viewers, and apply row-level security roles if needed. Finally, check it on web and mobile and send the link with a short note on what each page answers.
15
How do you calculate monthly revenue growth in SQL?
Put it first and keep it to one page or five lines on a slide. Start with the answer or recommendation, then the two or three key findings that support it, each with a number, then the impact in rupees or percentage, and finally the decision or action needed and by when. Avoid methodology details, which go in the appendix. Test it by asking whether a busy leader could act after reading only this section.
17
Write a DAX measure for a running total of sales by date.
Escalate immediately to the business sponsor with the impact: each day without testers delays sign-off and go-live. Ask for named testers with protected time, even part-time. Meanwhile, prepare so no time is lost: finalise test cases, check the environment and data, and plan a short tester briefing. If testers cannot be released, propose re-planning UAT dates rather than letting IT or the BA test on the business's behalf, because acceptance must come from the users.
Dynamic array functions return several values that spill into neighbouring cells. UNIQUE lists distinct values, SORT and SORTBY order data, FILTER returns rows meeting conditions, SEQUENCE builds number series, and XLOOKUP can return whole rows. For example =SORT(UNIQUE(FILTER(Sales[Region], Sales[Year]=2026))) builds a live region list. They replace many helper columns and Ctrl+Shift+Enter array formulas, and the # operator references a full spill range.
22
A business tester raises a defect, and the developer closes it as 'works as designed'. How do you resolve it?
Go back to the requirement and acceptance criteria. If the system matches the agreed requirement, the developer is right, and the business need is a change request. If the requirement is unclear or the design misread it, it is a defect, and the requirement wording should be fixed. Discuss it in triage with both parties, using examples. Either way, close the loop with the tester so they understand the outcome and keep trusting the process.
A short requirement written as 'As a user, I want X so that Y', backed by acceptance criteria. Good stories follow INVEST: independent, negotiable, valuable, estimable, small and testable.
26
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.
SUMIFS is faster and easier for sums with AND conditions on ranges. SUMPRODUCT multiplies arrays and sums the result, so it handles cases SUMIFS cannot: weighted totals like price times quantity, OR logic, conditions on calculated values such as MONTH(date)=4, or comparing two columns row by row. On very large sheets SUMPRODUCT is slower, so prefer SUMIFS or a helper column when possible.
A model assessing industry attractiveness through supplier power, buyer power, threat of new entrants, threat of substitutes and rivalry among competitors.
29
A product manager wants to stop an A/B test after three days because the variant is winning. What do you advise?
Advise against it. Checking results repeatedly and stopping at the first significant result inflates false positives, often far beyond the planned 5 percent. Three days also misses weekly patterns and novelty effects. Run the test for the pre-calculated sample size and duration. If speed is critical, the team can use a sequential testing method designed for early looks, but that must be planned before the test starts.
A UAT test plan defines how acceptance testing will be run. It covers scope and out-of-scope items, business processes to be tested, entry and exit criteria, roles such as testers, UAT lead and sign-off authority, test environment and test data, schedule and cycles, defect management process with severity definitions, communication and reporting, and risks. The BA usually drafts it with business owners so testers know exactly what they are accepting and when.
31
What is the difference between churn rate and retention rate?
Churn rate is the percentage of customers who leave in a period: customers lost divided by customers at the start. Retention rate is the percentage who stay, roughly 100 minus churn for the same cohort. If you start a month with 1,000 subscribers and 50 cancel, churn is 5 percent and retention 95 percent. Count new customers separately, otherwise growth hides churn. Revenue churn can differ from customer churn.
Entry criteria are conditions that must be met before UAT starts, for example system and integration testing completed, no open critical defects, UAT environment and test data ready, test cases reviewed and testers trained. Exit criteria define when UAT is complete, for example 100 percent of critical test cases executed, at least 95 percent passed, no open critical or high defects, and workarounds agreed for remaining medium ones. Clear criteria stop arguments about readiness near go-live.
Power Query is the data preparation engine inside Power BI and Excel. It connects to sources like Excel, CSV, SQL databases and web APIs, then lets you clean and shape data with recorded steps: remove columns, change types, split, merge, unpivot, append and group. Each step is written in the M language and replays on every refresh, so a monthly cleanup job becomes repeatable instead of manual.
35
Tell me about a time you misunderstood a requirement. What did you learn?
Situation: I was asked for 'monthly active customers' and built it on login data. Task: deliver the report for a review. Action: in the demo, the stakeholder said active meant customers who purchased, not logged in. I owned the mistake, rebuilt the measure in two days and wrote down the definition for sign-off. Result: the report was accepted, and now I always confirm definitions and sample outputs with stakeholders before building anything.
36
What is an issue tree and how does a hypothesis-driven approach work?
An issue tree breaks the main question into smaller, MECE sub-questions until each can be answered with data, such as 'why are profits down?' into revenue and cost branches. A hypothesis-driven approach starts with a likely answer, for example 'profit fell because delivery costs rose', and uses the tree to decide which data proves or disproves it first. It focuses effort and keeps the case structured and fast.
37
A quick-commerce company wants to expand into Tier-2 cities. What would you analyse before recommending it?
Demand: population density, smartphone and digital payment penetration, average basket size and how often people buy groceries. Supply: dark store rent, rider availability and local sourcing. Unit economics: orders per store per day needed to break even, given lower average order values. Competition: local kirana delivery and other apps. Then propose a pilot in two or three cities with clear success metrics such as orders per day, contribution margin per order and repeat rate before scaling.
38
How would you improve a company's low app conversion rate?
Use a replacement plus new-buyer approach. India has about 144 crore people; assume around 60 crore active smartphone users. If people replace phones every 4 years on average, replacements are about 15 crore a year. Add first-time buyers, say 2 to 3 percent of the remaining adult population, roughly 1.5 crore. The estimate is about 16 to 17 crore phones a year, which is close to reported industry numbers of around 15 crore.
40
Write an Excel formula for a two-way lookup that finds sales for a given product and month.
// products in A2:A50, months in B1:M1, data in B2:M50
// G1 = product, G2 = month
=INDEX(B2:M50, MATCH(G1, A2:A50, 0), MATCH(G2, B1:M1, 0))
// Excel 365 alternative
=XLOOKUP(G1, A2:A50, XLOOKUP(G2, B1:M1, B2:M50))
Tips to crack the Ericsson Business Analytics interview
Revise computer networks, TCP/IP, and basics of mobile communication such as LTE and 5G architecture before interviews.
Practise programming in C, C++, Java or Python, and be ready to solve simple coding and debugging problems.
Learn about Ericsson's role in 5G rollouts in India to discuss the industry and your interest in telecom.
Keep a one-minute story ready for every project on your CV: problem, your part, tools, result.
Practise the hard questions on this page aloud; Ericsson interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the Ericsson Business Analytics interview?
Candidates usually go through 4 stages: Online assessment (aptitude + technical); Technical interview; Managerial round; HR round. The exact rounds change with the role, team, location and your experience, so confirm the process with the recruiter.
Which topics should I prepare for the Ericsson Business Analytics interview?
This practice set leans on UAT and BA Documentation (8), SQL for Business Analysis (5), Excel for Business Analysts (5), Requirements and Agile (5). Revise those first, then practise explaining one or two of your own projects end to end, because most Ericsson interviewers ask you to walk through real work.
Are these the exact questions asked at Ericsson?
No. These are curated practice questions that match the skills and difficulty usually tested in telecom interviews like Ericsson's. They are not a leaked or verified list of past questions.
Where does Ericsson hire Business Analytics professionals in India?
Ericsson has large teams in Gurugram, Bengaluru, Chennai, Noida, Kolkata. Openings and locations change often, so check the Ericsson careers page and filter by city and experience.
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