Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About Dell Technologies hiring for Automation Testing roles
Dell Technologies makes PCs, servers, storage and networking products and provides related services. Its India centres in Bengaluru and Hyderabad work on software engineering, testing, data, IT and support functions. It hires for software engineers, test engineers, data analysts and data engineers. Several teams support global product lines and customers.
For Automation Testing roles, this Dell Technologies practice set focuses most on Selenium WebDriver (7), Cucumber and BDD (4), TestNG Framework (4), API Testing and CI/CD (4). It has 4 easy, 29 medium, 7 hard questions, so you can start easy and work up to the harder ones.
Company type
Hardware & semiconductors
Headquarters
Round Rock, Texas, USA
Main India offices
Bengaluru, Hyderabad
Dell Technologies Automation Testing interview process
Online assessment (aptitude + technical)
Technical round 1
Technical round 2
Managerial round
HR round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
Solved for Dell TechnologiesStart practicing
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01
How do you capture a screen recording of a mobile test and attach it on failure?
// Start before the test, stop and save only if it fails
driver.startRecordingScreen();
// ... test steps ...
String base64 = driver.stopRecordingScreen();
if (result.getStatus() == ITestResult.FAILURE) {
byte[] video = Base64.getDecoder().decode(base64);
Files.write(Paths.get("target/videos/" + result.getName() + ".mp4"), video);
}
// In the Thread Group fields use property functions with defaults
Number of Threads: ${__P(users,10)}
Ramp-up period: ${__P(rampup,30)}
Duration (seconds): ${__P(duration,300)}
// Then override them when running
jmeter -n -t load.jmx -l out.jtl -Jusers=200 -Jrampup=120 -Jduration=1800
The file is saved on the remote node, not the machine running the test, so the test cannot find it locally. Options are enabling Selenium Grid's managed downloads with se:downloadsEnabled and fetching the file through the Grid API, sharing a mounted volume with the container, or verifying the download by requesting the file URL with an HTTP client and checking status, size and type.
07
What is JsonPath and how do you use it for nested JSON?
JsonPath (Groovy GPath syntax in REST Assured) navigates JSON with dot notation. For {"data":{"items":[{"price":10}]}} you use data.items[0].price. You can also filter: data.items.findAll { it.price > 5 }.name returns names of items costing more than 5. Use it inside body() assertions or via response.jsonPath().getList("data.items.name") to extract values for further checks.
08
What is the LoadableComponent pattern in Selenium?
LoadableComponent is a Selenium support class that standardises how a page object ensures it is loaded. You extend it and implement load(), which navigates to the page, and isLoaded(), which throws an Error if the page is not ready. Calling get() checks isLoaded and calls load only if needed, then checks again. It gives a consistent, self-verifying way to open pages and fails fast with a clear message.
09
Which tests should run at each stage of a CI/CD pipeline?
On every commit or pull request: unit tests, static checks and a fast API and UI smoke suite. After deploying to a test environment: broader API and integration tests. Nightly: full UI regression across browsers. Before or after production release: a short production-safe smoke and monitoring checks. Faster feedback first, heavier tests later.
Serialization converts a Java object (POJO) into JSON for the request body; deserialization converts the response JSON back into a Java object. REST Assured does this automatically when Jackson or Gson is on the classpath: body(userPojo) serializes and response.as(User.class) deserializes. Using POJOs gives type safety, IDE support and cleaner assertions compared with hand-written JSON strings.
12
How does Selenium Grid decide which node gets a new session?
Each node advertises slots with stereotypes, which are capability sets like browserName chrome, a browser version and platformName linux. The distributor compares the requested capabilities with those stereotypes and picks a free matching slot, preferring nodes with lower load. If nothing matches, the request stays in the queue until timeout. Custom capabilities in the stereotype let you route tests to special nodes, such as nodes with a particular extension.
13
How do you make WebDriver thread-safe for parallel runs?
Give each page an isAt() or waitUntilLoaded() method that waits for a unique element, page title or URL fragment. Call it in the constructor or right after navigation. If it fails, throw a clear error such as "Expected Cart page but URL was /login". This catches navigation problems at the right point instead of failing later with a confusing locator error.
@Factory creates test class instances dynamically, each with different constructor data, so all tests in the class run once per instance. For example a factory can create LoginTests for chrome and firefox. It differs from DataProvider, which runs one method many times with different arguments. Factory is useful when a whole class should repeat for each configuration.
A short summary line under about 60 characters in the imperative mood, like "Add retry for flaky payment test", followed by a blank line and a body explaining why the change was made if not obvious. Reference the ticket ID. Small focused commits with clear messages make reviews faster and help when using git log or git bisect to find when a test broke.
19
What is correlation in JMeter and why is it needed?
Correlation means capturing dynamic values from one response and passing them into later requests. Session ids, CSRF tokens, auth tokens and order ids change every run, so a recorded script with hard-coded values fails on replay. In JMeter you use post-processors such as JSON Extractor, Regular Expression Extractor or CSS Selector Extractor to save the value into a variable, then reference it as ${token} in later headers or bodies.
20
What is the Background keyword and when should you avoid it?
Background holds steps that run before every scenario in a feature file, such as opening the app and logging in. It removes repetition in Given steps. Avoid it when it becomes long, when only some scenarios need it, or when it hides important context, because readers then cannot understand a scenario on its own. In that case use a hook or a clearer Given step.
21
Describe a situation where automation was not the right answer.
Situation: a manager wanted a one-time data migration check automated in Selenium. Task: give an honest recommendation. Action: I estimated the UI automation effort, showed a SQL comparison plus a manual sample check would finish in a day, and explained the flows would not repeat. Result: we finished faster, and the team now asks for ROI reasoning before automating.
22
What does SE_NODE_MAX_SESSIONS control in the Docker Selenium images?
It sets how many browser sessions a node container can run at once. The default is one, which gives the best isolation and stability. Increasing it lets one container run several browsers in parallel, but you must also set SE_NODE_OVERRIDE_MAX_SESSIONS to true and give the container enough CPU, memory and shared memory. Many teams keep one session per container and scale the number of containers instead.
23
Write a TestNG listener that logs test start and failure.
public static int secondLargest(int[] nums) {
int first = Integer.MIN_VALUE, second = Integer.MIN_VALUE;
for (int n : nums) {
if (n > first) {
second = first;
first = n;
} else if (n > second && n != first) {
second = n;
}
}
if (second == Integer.MIN_VALUE) throw new IllegalArgumentException("No second largest");
return second;
}
25
A mobile test fails intermittently because an animation is still running when you tap. How do you fix it?
Wait for a stable end state instead of sleeping, for example wait until the target element is visible and enabled or until a spinner disappears. On test devices and emulators you can disable animations with adb shell settings put global window_animation_scale 0, along with the transition and animator scales. Ask developers for an idle indicator if needed. Disabling animations makes tests faster and more stable, but keep one manual check of the real animations.
26
Write a DataProvider that supplies two sets of login data and a test that uses it.
Code pushed to Git → Jenkins job triggers (webhook or schedule) → mvn clean test with the suite XML → reports and screenshots published → notifications on Slack/email → failures triaged before release.
28
Write Selenium code to wait for a loader to disappear and then click a button.
First learn how versions are selected: URL path like /v1 and /v2, a header, or a query parameter. Keep a request specification per version and run the shared contract tests against each supported version, plus version-specific tests for new fields or changed behaviour. Check that old versions still return their original response shape so existing clients do not break, and that deprecated versions send the agreed deprecation headers or errors.
33
Your UI tests run noticeably slower on the Grid than on your laptop. How do you find the cause?
Every command now travels over the network, so chatty code with many findElement calls or getText in loops suffers most. Check latency between test runner and Grid, ideally keeping them in the same network or region. Check node resources: overloaded CPU or many sessions per container slow browsers. Video recording and VNC add overhead. Reduce round trips by batching checks, using JavaScript for bulk reads and avoiding implicit waits combined with explicit ones.
34
How do you design a REST Assured framework for many microservices?
Create a base module with shared specs, auth handling, config per environment, filters for logging and reporting, and utilities. Each service gets its own client class wrapping endpoints and POJOs for its models. Tests call clients, never raw URLs. Use builders for test data, schema checks for contracts, tags to run per service, and run independent services in parallel in CI.
35
What is the Maven Surefire plugin and how do you configure it for TestNG?
Surefire runs tests during the test phase. For TestNG, configure suiteXmlFiles with the path to testng.xml, so mvn test runs that suite. You can pass system properties, set parallel and threadCount, and control reports. Make the suite file a property like ${suiteXml} so CI can choose smoke.xml or regression.xml with -DsuiteXml=smoke.xml.
36
A click works locally but throws ElementClickInterceptedException in CI. How do you fix it?
Another element, such as a cookie banner, loader overlay or sticky header, covers the target. In CI the window is often smaller, so the layout differs. Set a fixed window size, wait for the overlay to disappear with invisibilityOfElementLocated, close banners in setup and scroll the element into view. Use a JavaScript click only as a last resort, since it bypasses real user behaviour.
compile is the default and available everywhere. test is only for test compile and run, such as TestNG and REST Assured. provided is needed for compiling but supplied at runtime by the container. runtime is not needed to compile but needed to run, like JDBC drivers. system and import are rarer. In test projects, mark test libraries as test scope unless framework code in src/main uses them.
38
Your code review shows a test class with 30 copy-pasted lines in every method. How do you refactor it with Java features?
Extract repeated steps into private helper methods or a page object, move common setup into @BeforeMethod, and use a DataProvider when only data differs. If the repeated code differs only in a small action, pass that action as a lambda, such as a Consumer<WebDriver>. Rerun the tests after each small refactor to confirm behaviour is unchanged.
39
How do you use Cucumber with REST Assured for API BDD tests?
Write scenarios in business terms, such as "When a customer places an order for 2 items". In step definitions, build the request with REST Assured, store the Response in a shared scenario context, and assert in Then steps using then().statusCode() and JSON path checks. Keep base URI, auth and specs in a helper class so steps stay short and the same steps serve many features.
40
What are Cucumber hooks and how are they different from Background?
Hooks are Java methods annotated with @Before, @After, @BeforeStep and @AfterStep that run around scenarios or steps. Background is visible in the feature file and describes business preconditions; hooks are hidden technical setup such as starting the browser, cleaning data or attaching screenshots. Hooks can be ordered with the order attribute and filtered by tag expressions, for example @Before("@ui").
Tips to crack the Dell Technologies Automation Testing interview
Revise storage and server basics, such as RAID, virtualisation and backup, if applying for infrastructure teams.
Practise testing concepts and Python automation, which are common requirements for Dell QA roles.
Read about Dell's AI servers and infrastructure business, which has become a major growth area.
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; Dell Technologies interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the Dell Technologies Automation Testing interview?
Candidates usually go through 5 stages: Online assessment (aptitude + technical); Technical round 1; Technical round 2; 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 Dell Technologies Automation Testing interview?
This practice set leans on Selenium WebDriver (7), Cucumber and BDD (4), TestNG Framework (4), API Testing and CI/CD (4). Revise those first, then practise explaining one or two of your own projects end to end, because most Dell Technologies interviewers ask you to walk through real work.
Are these the exact questions asked at Dell Technologies?
No. These are curated practice questions that match the skills and difficulty usually tested in hardware & semiconductors interviews like Dell Technologies's. They are not a leaked or verified list of past questions.
Where does Dell Technologies hire Automation Testing professionals in India?
Dell Technologies has large teams in Bengaluru, Hyderabad. Openings and locations change often, so check the Dell Technologies careers page and filter by city and experience.
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