01
How do you test a REST API with authentication?
Show answer
Check access with valid, expired and missing tokens, role-based permissions, error codes and that sensitive data is never exposed.
Infogain Software Testing Interview Questions & Answers
Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About Infogain hiring for Software Testing roles
Infogain is a digital engineering and IT services company serving clients in technology, travel, retail, insurance and healthcare. It offers software engineering, cloud, data and analytics, experience design and customer engagement solutions. It is part of the Apax Funds portfolio and has large delivery centres in India, where it hires developers, testers, data engineers and cloud specialists for global client projects.
For Software Testing roles, this Infogain practice set focuses most on Manual Testing Basics (9), Test Case Design (7), Agile, SQL and API Testing (5), Mobile Testing (4). It has 19 easy, 20 medium, 1 hard questions, so you can start easy and work up to the harder ones.
- Company type
- IT services
- Headquarters
- California, USA
- Main India offices
- Noida, Gurugram, Pune, Bengaluru
Infogain Software Testing interview process
- Online assessment (aptitude + technical MCQs)
- Technical interview
- Client or managerial round
- HR round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
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02
What is think time in performance testing?
Show answer
Think time is the pause a real user takes between actions, such as reading a product page before adding it to the cart. Performance scripts add think time, often with random variation, so virtual users behave realistically. Without think time, a few virtual users generate a load equal to many real users, which gives misleading results. Think time values are usually taken from analytics or production logs.
03
A developer asks you to test a feature that has no acceptance criteria. How do you proceed?
Show answer
First ask the product owner or business analyst for the expected behaviour and write down the answers as draft acceptance criteria. Meanwhile, explore the feature, compare it with similar existing features and list assumptions. Share the assumptions in the story so everyone agrees before you sign off. Raise the missing criteria in the next refinement so future stories are not picked up without them.
04
How do you test location-based features in a mobile app?
Show answer
Test with location permission allowed, denied and approximate only. Use mock location tools to simulate different cities and moving routes. Verify the app shows nearby results correctly, updates location while moving and handles GPS turned off. Check accuracy indoors and with weak GPS, battery impact of continuous tracking and that background location is used only if needed and explained to the user.
05
What are latent defects and masked defects?
Show answer
A latent defect exists in the software but has not caused a failure yet because the needed conditions have not occurred, such as a leap-year bug that appears only on 29 February. A masked defect is hidden by another defect, for example a broken discount calculation you cannot reach because the cart page crashes first. After the first bug is fixed, the masked one appears, which is one reason regression and retesting matter.
06
What is use case testing?
Show answer
Designing tests from user flows described in use cases to verify complete real-world interactions.
07
How do you break a requirement into testable conditions?
Show answer
Read the requirement and identify inputs, outputs, business rules, user roles and states. Turn each rule into a condition with an expected result, then add negative and boundary conditions. For example, 'users can withdraw up to 10,000 per day' becomes: withdraw below the limit, exactly at the limit, above the limit, multiple withdrawals adding up to the limit, and the limit resetting the next day. Each condition then becomes one or more test cases.
08
What is test monitoring and control?
Show answer
Test monitoring compares actual testing progress with the plan, using metrics like test cases executed, pass rate, open defects and effort spent. Test control is the action taken when monitoring shows a gap, such as re-prioritising tests, adding testers, changing the schedule or tightening entry criteria. For example, if half the time has passed but only a quarter of cases are executed, the lead must act and inform stakeholders.
09
What is defect density?
Show answer
The number of defects per size of software, for example defects per thousand lines of code or per module, used to compare quality.
10
Write test cases for a multi-select dropdown.
Show answer
1. Open and close by click and keyboard. 2. Select one, then several options; all show as chips or a count. 3. Deselect an option. 4. Select all and clear all, if available. 5. Search inside the list filters options. 6. Maximum selection limit is enforced with a message. 7. Required field shows an error if none selected. 8. Saved selection persists after refresh. 9. Long option names do not break layout. 10. Screen reader announces selected state.
11
Why are hard-coded sleeps bad in automated tests?
Show answer
A fixed sleep, such as waiting five seconds, is either too long, which makes the suite slow when the page loads in one second, or too short, which makes the test fail when the server is slow. Both waste time and cause flaky results. Instead, wait for a real condition: an element to appear, a network response to finish or a loading spinner to disappear. Modern tools do much of this automatically.
12
What is the difference between HTTP 401 and 403?
Show answer
401 Unauthorized means the request has no valid authentication, such as a missing, expired or wrong token, so the client should log in again. 403 Forbidden means the user is authenticated but does not have permission for that resource, such as a normal user calling an admin API. Testers verify both: call without a token to expect 401, and call with a low-privilege token to expect 403.
13
A user updates their phone number in the app, but the old number still appears in reports. What do you check?
Show answer
First query the main users table to see whether the update was saved. If it was, check where the report reads from: a view, a reporting copy, a cache or a nightly ETL table. The report may simply be stale until the next refresh, which may be by design. If the main table still has the old value, check the API request, the update query and any errors in logs, then log a bug with both query results.
14
How do specification-based techniques differ from experience-based techniques?
Show answer
Specification-based (black box) techniques derive tests systematically from requirements: equivalence partitioning, boundary values, decision tables, state transitions and use cases. They give measurable coverage. Experience-based techniques rely on the tester's knowledge and intuition: error guessing, exploratory testing and checklist-based testing. They are good at finding defects the specification never mentioned. Strong testers use specification techniques for coverage and experience techniques to fill the gaps.
15
How do you test API error handling for invalid input?
Show answer
Send requests with missing required fields, wrong data types, values beyond limits, invalid formats such as a bad email, unknown fields and an empty or malformed JSON body. The API should return a 4xx code such as 400 or 422, a clear error message that names the field, and no stack trace or database details. Also check that nothing was partly saved in the database after the failed request.
16
How do you test a country dropdown that controls a dependent state dropdown?
Show answer
Check the state list is empty or disabled until a country is selected. Select a country and verify the correct states load. Change the country and confirm the old state selection is cleared and the new list loads. Test countries with no states, a long list with scrolling and search, and default values on page load. Submit the form and verify the saved values, then reload and check both dropdowns keep the saved selection.
17
SQL: find the second highest salary from an employees table.
Show answer
SELECT MAX(salary) AS second_highest
FROM employees
WHERE salary < (SELECT MAX(salary) FROM employees);
-- alternative using DENSE_RANK
SELECT DISTINCT salary FROM (
SELECT salary, DENSE_RANK() OVER (ORDER BY salary DESC) AS rnk
FROM employees
) t WHERE rnk = 2;
18
Why do you want to start your career in manual testing?
Show answer
Model answer: I enjoy finding how things break and thinking like a user. During my internship I tested a college fee portal and found that a refund was shown twice on the receipt, which the team fixed before launch. Manual testing gives me a strong base in requirements, test design and bug reporting. I plan to add SQL, API and automation skills on top of it as I grow.
19
What is the difference between alpha and beta testing?
Show answer
Alpha is done in-house by internal teams before release; beta is done by a limited group of real users in their own environment.
20
Why must input validation be tested on the server and not only in the browser?
Show answer
Client-side validation improves user experience by giving quick feedback, but anyone can bypass it by disabling JavaScript or sending requests directly with tools like Postman. The server must validate every input again for type, length, format and business rules. Testers check this by sending invalid data straight to the API, such as a negative quantity or a very long name, and confirming the server rejects it.
21
What is shift-left testing and why is it cheaper?
Show answer
Shift-left means starting testing activities earlier in the life cycle: reviewing requirements, joining design discussions and writing tests before code is complete. A defect found in requirements may cost a short conversation to fix, while the same defect found in production may need a hotfix, data correction and customer support. Testers shift left by asking questions in grooming, defining acceptance criteria and reviewing designs.
22
What is the classification tree method?
Show answer
The classification tree method breaks the input domain into classifications (aspects like payment type, user type, device) and classes (values like card, UPI, wallet). These are drawn as a tree, and test cases are formed by picking one class from each classification in a combination table. It makes coverage visible, helps reviewers spot missing classes and combines well with pairwise selection to keep the number of test cases manageable.
23
What is the difference between an emulator, a simulator and a real device?
Show answer
An emulator imitates both the hardware and software of a device, as with the Android emulator, so it behaves close to a real phone. A simulator imitates only the software environment, as with the iOS simulator, and does not reproduce the hardware. Both are free and fast for early testing. Real devices are needed for camera, battery, sensors, actual performance, network behaviour and final sign-off.
24
What is the role of a manual tester in a software team?
Show answer
A manual tester understands requirements, writes test scenarios and test cases, prepares test data, executes tests on each build, logs clear bug reports and retests fixes. They also do exploratory testing, join stand-ups and reviews, and give a quality status before release. Beyond finding bugs, a good manual tester represents the end user and raises usability or requirement gaps early, when they are cheap to fix.
25
What does quality mean to you as a tester?
Show answer
Model answer: To me quality means the product does what users need, reliably, and is easy to use, not just that test cases pass. In my final-year project I tested a library app; all features worked, but students struggled to find the search option. I reported it as a usability issue and the team moved search to the home screen. That taught me to test from the user's point of view as well.
26
How do you test a database trigger?
Show answer
First read what the trigger should do and when it fires, such as AFTER UPDATE on the salary column writing a row to an audit table. Then perform the event that should fire it and query the target table to confirm the expected row and values. Also perform events that should not fire it and confirm nothing happens. Check multi-row updates, NULL values and rollback: if the main statement fails, the trigger's changes must not remain.
27
What is mobile app testing and what extra checks does it need?
Show answer
Test on real devices and OS versions, interrupts such as calls, battery, network changes, gestures, permissions and app store guidelines.
28
A dashboard shows pass or fail status only with red and green dots. What is the issue?
Show answer
This relies on colour alone to give information, which fails WCAG criterion 1.4.1. Users with red-green colour blindness, which affects a noticeable share of men, cannot tell the states apart, and screen readers announce nothing. Recommend adding text or icons such as a tick and a cross with labels like 'Passed' and 'Failed', and accessible names for the dots. Test with a colour blindness simulator in browser developer tools.
29
What is compatibility testing?
Show answer
Checking the application works across browsers, devices, operating systems, screen sizes and network conditions.
30
What are entry and exit criteria?
Show answer
Entry criteria are conditions that must be met to start testing (build ready, environment set); exit criteria define when testing can stop (pass rate, no critical defects).
31
How would you test a pen?
Show answer
First ask what type of pen and who the users are. Functional: it writes smoothly, ink flows without leaking, the cap or click mechanism works and the ink colour matches the label. Non-functional: comfort of grip, writing length before ink runs out, performance at different temperatures and on different paper. Negative: dropping it, pressing hard, leaving it uncapped. Safety: the cap is non-toxic and has an air hole. This shows structured thinking, not just a list.
32
SQL: count today's orders by status.
Show answer
SELECT status, COUNT(*) AS total
FROM orders
WHERE created_at >= CURRENT_DATE
AND created_at < CURRENT_DATE + INTERVAL '1 day'
GROUP BY status
ORDER BY total DESC;
33
What is system testing?
Show answer
System testing tests the complete, integrated application against the requirements in an environment close to production. It is done by the testing team after integration testing and before UAT. It covers functional testing of all features plus non-functional aspects such as performance, security, usability and compatibility. It is black box testing, so the tester checks behaviour from the user's point of view without looking at the code.
34
Write test cases for a calculator app.
Show answer
Basic operations, division by zero, decimals, large numbers, order of operations, clear and backspace, repeated operations and memory keys.
35
What is a duplicate bug and how do you avoid logging one?
Show answer
A duplicate bug is a new report for a problem that is already logged. Before raising a bug, search the tracker by key words, module, error message and recent open bugs, and ask teammates working on the same area. If a similar bug exists, add your extra information, such as another browser or data set, as a comment instead of a new ticket. This keeps the backlog clean and saves triage time.
36
How do you write steps to reproduce for a bug that needs specific test data?
Show answer
Start with preconditions: environment, build number, user role and the exact data state, such as an account with two pending orders and zero wallet balance. Mention how to create the data or give the test account ID. Then list numbered steps with exact inputs and finish with expected and actual results. If the data is hard to set up, attach the SQL used or a database screenshot so the developer can recreate it quickly.
37
Why is exhaustive testing impossible?
Show answer
Exhaustive testing means trying every possible input, path and combination, which is practically infinite for real software. Even a single text field accepting 20 characters has more combinations than you could ever run. So testers use risk and techniques like equivalence partitioning and boundary value analysis to select a small set of tests that give high confidence. The goal is enough coverage of important risks, not every possible case.
38
Verification vs validation?
Show answer
Verification: are we building the product right? (reviews, walkthroughs — no code run). Validation: are we building the right product? (actual testing against user needs).
39
A user fills a long form, switches to another app and comes back. What should you test?
Show answer
Check that the form data is still there when the user returns after a few seconds and after a longer time. Test when the OS kills the app in background due to low memory, which you can force with developer options, and confirm the app restores state or at least warns the user. Also check session timeout behaviour and that sensitive screens are hidden in the recent apps view if required.
40
What should a tester verify about HTTPS on a website?
Show answer
Check every page and API uses HTTPS, and plain HTTP redirects to HTTPS. Verify the certificate is valid, not expired, and matches the domain, with no browser warnings. Look for mixed content, where an HTTPS page loads scripts or images over HTTP. Check login and payment forms submit only over HTTPS and that cookies holding session data have the Secure flag.
Tips to crack the Infogain Software Testing interview
- Revise one programming language, SQL and REST API basics, and be ready to solve a simple coding problem live.
- Prepare examples of working in a team, handling deadlines and communicating clearly, since many projects involve direct client interaction.
- Read about Infogain's focus on digital engineering and the industries it serves to answer why you want to join.
- 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; Infogain interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the Infogain Software Testing interview?
Candidates usually go through 4 stages: Online assessment (aptitude + technical MCQs); Technical interview; Client or 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 Infogain Software Testing interview?
This practice set leans on Manual Testing Basics (9), Test Case Design (7), Agile, SQL and API Testing (5), Mobile Testing (4). Revise those first, then practise explaining one or two of your own projects end to end, because most Infogain interviewers ask you to walk through real work.
Are these the exact questions asked at Infogain?
No. These are curated practice questions that match the skills and difficulty usually tested in it services interviews like Infogain's. They are not a leaked or verified list of past questions.
Where does Infogain hire Software Testing professionals in India?
Infogain has large teams in Noida, Gurugram, Pune, Bengaluru. Openings and locations change often, so check the Infogain careers page and filter by city and experience.
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