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ISTQB Interview Questions in Noida

36 practice questions with answers for ISTQB interviews in Noida.

ISTQB jobs in Noida

Noida is a major IT and IT-services hub in Delhi NCR with large campuses of service companies, product firms and fast-growing start-ups along the Noida–Greater Noida Expressway. Freshers often find their first role here, and many teams run hybrid work.

Below are 36 questions that match the mix of service, product and domain employers hiring manual test engineers in Noida.

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01

How do you perform a simple root cause analysis on a production failure?

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Collect the failure details and logs, reproduce the issue and identify the defect. Then ask 'why' repeatedly until you reach a process cause. Example: a wrong discount was shown; why? the code used an old rule; why? the requirement changed without notice; why? there was no change review step. Action: add change notifications and a review step. Fixing root causes prevents whole families of similar defects.
02

Which good testing practices apply regardless of the SDLC model?

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CTFL v4.0 lists these: for every software development activity there is a corresponding test activity; each test level has its own specific objectives; test analysis and design for a level begin during the corresponding development phase; and testers are involved in reviewing work products as soon as drafts are available. Together these practices support early testing and quality control in waterfall, V-model and Agile projects alike.
03

What does a test plan contain according to CTFL v4.0?

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A test plan typically covers: context of testing (scope, objectives, constraints, test basis); assumptions and constraints; stakeholders with roles and responsibilities; communication; a risk register of product and project risks; the test approach (test levels, types, techniques, deliverables, entry and exit criteria, independence, metrics, test data and environments); and budget and schedule. It documents how test objectives will be met and is updated as the project changes.
04

What does the principle 'tests wear out' mean, and what was it called earlier?

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In v4.0 the old 'pesticide paradox' was renamed 'tests wear out'. If the same tests are repeated many times, they become less effective at finding new defects because the code they exercise has already been fixed. Testers should modify existing tests and test data and write new tests. The exception is automated regression testing, where repeating the same tests is valuable because the goal is to confirm nothing has broken.
05

You have three years of testing experience and three weeks to prepare for CTFL. How do you plan?

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Experience helps, but the exam follows syllabus wording, not company practice. Week 1: read chapters 1 to 3 and the glossary terms in each learning objective. Week 2: study chapters 4 to 6, practise BVA, decision tables, state transitions, coverage and estimation calculations. Week 3: take timed official sample exams, analyse every wrong answer against the syllabus, and revise weak chapters.
06

How does acceptance test-driven development (ATDD) work?

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ATDD is a test-first approach. The team, including business, developers and testers, analyses the story and acceptance criteria in a specification workshop, then writes test cases before implementation. Positive tests come first, then negative tests and non-functional characteristics. Tests are written in a form stakeholders understand, cover every criterion without going beyond the story, and are often automated so they become executable requirements.
07

A test checks that the loan module correctly sends customer data to an external credit bureau API. Which test level is this?

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This is system integration testing, because it tests the interface between our system and an external system, the credit bureau API. If it checked the interface between two internal modules of our own application, it would be component integration testing. In exam questions, keywords such as 'external system', 'third-party service' or 'other systems' point to system integration testing.
08

Give a checklist you would use to review a user story.

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Is it written as 'As a [role], I want [goal], so that [benefit]'? Does it follow INVEST: independent, negotiable, valuable, estimable, small and testable? Are acceptance criteria clear, measurable and testable? Are error flows and edge cases covered? Are terms consistent with the glossary? Are dependencies and non-functional needs stated? Are vague words like 'quickly' or 'etc.' present? Log each anomaly with location, description and a suggestion.
09

A review is led by the author, and its goals are to educate the team and reach consensus. Which review type is it?

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It is a walkthrough. Walkthroughs are led by the author, and their objectives include educating reviewers, building consensus, generating new ideas, motivating authors and detecting anomalies. Individual preparation is optional. If a trained moderator led it with technical experts to make technical decisions, it would be a technical review; if it followed a fully formal process with metrics, it would be an inspection.
10

Are there prerequisites for CTFL, and does the certificate expire?

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There are no formal prerequisites for the Foundation Level exam; students, freshers and experienced professionals can all take it, although some practical testing exposure makes the syllabus easier. The CTFL certificate has lifetime validity and does not need renewal. It is the prerequisite for ISTQB Advanced Level and most Specialist certifications, so it is the starting point of the ISTQB path.
11

Ten automated tests fail overnight, but the cause is an expired SSL certificate in the test environment. How should this be reported?

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These failures are caused by the environment, not the test object, so they should not be logged as product defects. I would raise one environment issue with the infrastructure team, mark the test results as blocked or environment failure, and re-run after the certificate is renewed. I would also suggest monitoring certificate expiry so the same false positives do not recur.
12

Write a test charter for an exploratory session on a checkout page.

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Charter: Explore the checkout page with different coupon and payment combinations to discover pricing and rounding errors. Time box: 60 minutes. Focus areas: coupon stacking, expired coupons, quantity changes after applying a coupon, currency rounding, and using the browser back button. Record test ideas, defects, questions and areas covered. Debrief with the test lead after the session to agree next charters.
13

Why is not every failed test a defect in the software?

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A failure can be caused by the test itself or the environment, not the test object. Common causes include wrong expected results, outdated test data, incorrect test scripts, misconfigured environments, network issues or unavailable third-party services. CTFL v4.0 therefore talks about anomalies, which are analysed before being reported as defects. Logging every failure as a defect without analysis creates false positives and wastes developer time.
14

Show a simple CI pipeline step that runs automated tests on every push.

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name: tests on: [push, pull_request] jobs: test: runs-on: ubuntu-latest steps: - uses: actions/checkout@v4 - uses: actions/setup-python@v5 with: python-version: '3.12' - run: pip install -r requirements.txt - run: pytest --junitxml=report.xml The pipeline fails if any test fails, giving fast feedback to the developer.
15

How did you give feedback on a senior colleague's document that had many issues?

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Situation: a senior architect's design missed several error-handling flows. Task: give feedback respectfully. Action: I grouped comments by theme, framed them as questions with concrete examples, noted the strong sections, and offered to discuss in person rather than only posting comments. Result: he accepted most points, appreciated the clear feedback, and later invited me to review his designs earlier.
16

What are the benefits of test automation?

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Automation saves time by reducing repetitive manual work such as regression runs, comparisons and data entry. It prevents simple human errors through greater consistency and repeatability. It gives more objective assessment, such as coverage, and access to measurements too complex for humans. It reduces test execution times, giving faster feedback and earlier defect detection, and frees testers to design new and deeper tests.
17

Order these tests for execution: A (priority 1, depends on C), B (priority 2), C (priority 3), D (priority 2, depends on B). 1 is highest.

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A has the highest priority but depends on C, so C must run first, followed by A. Next come the priority 2 tests: B, then D, because D depends on B. The execution order is C, A, B, D. ISTQB exams often include such questions; always satisfy dependencies first, then follow priority, and run the highest priority test as early as its dependencies allow.
18

Walk through the steps of running a technical review of a design document.

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Plan: define scope, objective and exit criteria and choose reviewers with the right expertise. Initiate: share the document, checklist and timeline. Individual review: each reviewer logs anomalies in a shared tool. Communication and analysis: the moderator runs the meeting, the team discusses anomalies and agrees actions. Fixing and reporting: the author updates the document, defects are tracked, and results are checked against exit criteria.
19

What are the risks of test automation?

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Unrealistic expectations about what a tool can do; inaccurate estimates of the time, cost and effort to introduce and maintain it; using a tool where manual testing is better; relying on the tool too much and ignoring critical thinking; dependency on the tool vendor, which may go out of business or retire the tool; open-source tools being abandoned; and tools not compatible with the development platform or not meeting regulations.
20

What is the difference between severity and priority?

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Severity is the degree of impact the defect has on the system or its stakeholders, such as a crash or data loss. Priority is the urgency of fixing it, usually set by the business or product owner. Testers usually suggest severity, and priority is decided in triage. Example: a crash in a rarely used admin report is high severity but may be low priority.
21

Marks from 0 to 100 give: 0-39 fail, 40-59 pass, 60-100 distinction. How many partitions and 2-value boundary values are there?

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Valid partitions: 0-39, 40-59 and 60-100, plus two invalid partitions: below 0 and above 100, so 5 partitions. Boundaries in 2-value BVA: -1, 0, 39, 40, 59, 60, 100 and 101, which is 8 values. Five tests give 100 percent EP coverage, and eight tests give 100 percent 2-value boundary coverage. Note that output partitions like fail, pass and distinction also guide the partitioning.
22

Your CI pipeline takes two hours because most automated tests are UI tests. What do you suggest?

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The suite looks like an inverted test pyramid. I would push checks down: move business logic checks to unit tests, cover service rules with API tests, and keep only a small set of end-to-end UI tests for critical user journeys. I would also run tests in parallel and split suites into a fast smoke stage and a fuller nightly run. Feedback becomes faster and tests less flaky.
23

A module of 15,000 lines of code has 45 defects. Calculate its defect density and explain how you would use it.

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Defect density = defects / size = 45 / 15 KLOC = 3 defects per KLOC. If other modules average 1 defect per KLOC, this module is a defect cluster, so I would increase test depth there, ask for a code review or refactoring, and add more regression tests. Compare density only across similar code, because language and complexity affect the numbers.
24

An insurance premium depends on five Boolean conditions. The full decision table has 32 columns. How do you keep testing manageable?

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First remove infeasible combinations, for example 'under 18' with 'retired'. Then minimise the table by merging columns where a condition has no effect on the action. Next, prioritise the remaining rules by risk and business value, testing high-impact rules first. I would also verify the rules with the business, since a large table often exposes contradictions or missing actions.
25

What formats can acceptance criteria take?

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The two common formats are scenario-oriented, such as the Given/When/Then style used in BDD, and rule-oriented, such as a bullet-point verification list or a tabulated input-output mapping. Acceptance criteria define the scope of the story, reach consensus among stakeholders, describe positive and negative scenarios, serve as the basis for acceptance testing and support accurate planning and estimation. Teams can also use other formats as long as criteria are well defined and clear.
26

Testers spent a day testing the wrong build version. How do you prevent this?

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This is a configuration management failure. I would ensure every build has a unique version shown in the application and in the release notes, that deployments to test environments are automated and logged, and that test runs record the build version tested. Entry criteria should include confirming the build version. A deployment notification in the team channel also helps everyone stay aligned.
27

What is the difference between the test management role and the testing role in CTFL v4.0?

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v4.0 describes roles, not job titles. The test management role owns the test process, the test team and leadership of test activities, mainly planning, monitoring and control, and completion. The testing role owns the engineering side: test analysis, design, implementation and execution. One person can hold both roles, and in Agile teams some management tasks are done by the team while cross-team coordination may sit with a test manager.
28

How should you answer 'select TWO' questions in the CTFL exam?

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Read the instruction carefully, because you must select exactly two options and usually get the point only if both are correct. Evaluate each option separately as true or false against the syllabus. Eliminate absolute statements and options that describe a different concept. If you are sure of one, compare the remaining options carefully. These questions appear in the exam, so practise them in sample papers.
29

Model an ATM PIN entry with three attempts as states and transitions. How many tests are needed for valid transitions coverage?

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States: Idle, WaitPIN, Try2, Try3, Access, Locked Idle --insert card--> WaitPIN WaitPIN --correct PIN--> Access WaitPIN --wrong PIN--> Try2 Try2 --correct PIN--> Access Try2 --wrong PIN--> Try3 Try3 --correct PIN--> Access Try3 --wrong PIN--> Locked There are 7 valid transitions. Access and Locked are final states, so each test ends there; covering all 7 needs at least 4 tests.
30

What changed in CTFL v4.0 compared with the 2018 syllabus?

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v4.0 added Agile and DevOps content: the whole team approach, test-first approaches like TDD, ATDD and BDD, shift-left, retrospectives, collaboration-based test approaches, the test pyramid and testing quadrants. It renamed the pesticide paradox to 'tests wear out', removed use case testing and decision coverage, focused white-box testing on statement and branch coverage, and described test roles instead of job titles.
31

Why does CTFL v4.0 recommend starting non-functional testing early?

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Non-functional tests are often left to the end, but late discovery of performance or security problems can threaten the whole project. v4.0 recommends starting early, even at component level, for example measuring response time of a key service. Some tests need special environments such as a usability lab. Many non-functional tests reuse functional tests but measure a different quality, like checking login speed under 500 concurrent users.
32

A review meeting turns into people blaming the author. How do you handle it as moderator?

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I would refocus the discussion on the work product, not the person, remind everyone of the review objectives, and record the anomaly neutrally. Afterwards I would speak privately with the people involved. To prevent repeats, I would set ground rules, train participants and make sure review results are never used to judge individuals. Authors in a safe culture share work openly, so reviews find more defects.
33

Tell me about a time you delivered testing under a very tight deadline.

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Situation: a regulatory change had to go live in five days. Task: test it without missing critical risks. Action: I ran a quick risk analysis with the product owner, focused on calculation rules and reports, automated repetitive data checks, and gave daily status updates. Result: we released on time with no production defects in high-risk areas, and lower-risk cosmetic issues were fixed in the next sprint.
34

What are the objectives of a defect report?

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A defect report gives the people responsible for handling and resolving the defect enough information to fix it. It also provides a way to track the quality of the work product, and it offers ideas for improving the development and test processes. A good report is clear, reproducible and neutral in tone, so that developers can act on it quickly and managers can analyse trends.
35

What is the whole team approach?

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In the whole team approach, any team member with the right knowledge can perform any task, and everyone is responsible for quality. The team shares a physical or virtual workspace, and testers work closely with business representatives to create acceptance tests and with developers to agree the test strategy and automation. It improves communication and uses combined skills, although safety-critical contexts may still need higher test independence.
36

What is testware? Give examples from different test activities.

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Testware is any work product created during the test process. Examples: test plan and risk register from planning; progress reports and control directives from monitoring and control; prioritised test conditions from analysis; test cases, test charters and coverage items from design; test procedures, automated scripts, test suites and test data from implementation; test logs and defect reports from execution; and the test completion report with lessons learned from completion.

Companies with offices in Noida (6)

IT services

HCLTech

ISTQB interview questions

  • 30 questions
  • 4 rounds

Noida, Chennai, Bengaluru +2

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IT services

Tech Mahindra

ISTQB interview questions

  • 30 questions
  • 4 rounds

Pune, Hyderabad, Bengaluru +2

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IT services

Hexaware

ISTQB interview questions

  • 30 questions
  • 4 rounds

Navi Mumbai, Chennai, Pune +2

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IT services

Coforge

ISTQB interview questions

  • 30 questions
  • 4 rounds

Noida, Greater Noida, Bengaluru +2

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IT services

Birlasoft

ISTQB interview questions

  • 30 questions
  • 4 rounds

Pune, Noida, Bengaluru +1

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IT services

NTT DATA

ISTQB interview questions

  • 30 questions
  • 4 rounds

Bengaluru, Pune, Noida +2

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Frequently asked questions

Which companies hire ISTQB professionals in Noida?

Companies with large offices in Noida include HCLTech, Tech Mahindra, Hexaware, Coforge, Birlasoft, NTT DATA. Use their company pages below to practise employer-specific sets.

Are ISTQB interviews in Noida different from other cities?

The questions depend more on the company than the city. Noida's mix of employers decides the style: Freshers often find their first role here, and many teams run hybrid work

How do I find ISTQB jobs in Noida?

Shortlist companies with Noida offices, keep your CV focused on ISTQB projects, apply on company career pages and job portals with the Noida filter, and practise the questions on this page before each interview.

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