Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About NetApp hiring for Automation Testing roles
NetApp is a data infrastructure company that provides storage systems, data management software and cloud data services. Its ONTAP storage software and cloud offerings help enterprises store, protect and move data across on-premises and public cloud environments. Its Bengaluru centre is a major engineering site that hires software engineers, quality engineers and support engineers.
For Automation Testing roles, this NetApp practice set focuses most on Selenium Grid & Docker (8), Selenium WebDriver (7), REST Assured (5), Performance Testing with JMeter (4). It has 5 easy, 27 medium, 8 hard questions, so you can start easy and work up to the harder ones.
Company type
Product
Headquarters
San Jose, California, USA
Main India offices
Bengaluru
NetApp Automation Testing interview process
Online coding assessment
Technical round 1 (DSA + C)
Technical round 2 (OS, storage or networking)
Hiring manager round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
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01
Write a docker-compose.yml that runs a Selenium hub with Chrome and Firefox nodes.
First check timing: the screen may still be loading, so add an explicit wait for presence. Then check context: in a hybrid app the element may be in a webview while you are in NATIVE_APP. Confirm the locator matches exactly, including package prefix in resource-id. The element may be off screen in a list, so scroll first. Also check that the Inspector session used the same app build, language and device size as the test.
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.
Run JMeter in non-GUI mode in a pipeline stage, ideally inside a Docker image with a pinned JMeter version, and archive the JTL and HTML report. Enforce SLAs with Duration Assertions or a JSR223 check, or parse the JTL in a script that compares 95th percentile and error rate with thresholds and exits non-zero. The Jenkins Performance plugin can also mark builds unstable or failed based on thresholds and trends.
08
Your API token expires after 15 minutes and long REST Assured suites start failing with 401. What do you do?
Centralise token handling in an auth helper that caches the token with its expiry time and refreshes it shortly before it expires, or in a filter that catches a 401, refreshes once and retries. Do not log in before every test, as that slows the suite and may hit rate limits. Make the helper thread-safe for parallel runs.
@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.
11
Write a DataProvider that supplies two sets of login data and a test that uses it.
// REST Assured uses GPath for XML as well as JSON
given()
.accept(ContentType.XML)
.when()
.get("/orders/42")
.then()
.statusCode(200)
.contentType(ContentType.XML)
.body("order.@id", equalTo("42"))
.body("order.items.item.size()", equalTo(3))
.body("order.status", equalTo("SHIPPED"));
It means no matching free slot appeared in time. Check the Grid UI to see whether nodes are registered and whether their capabilities match the request, such as browser name, version or platform. Compare the test thread count with total slots, since extra threads just wait in the queue. Look for stuck sessions holding slots after aborted builds. Then increase capacity, reduce threads, or raise the session request timeout.
16
How do you record videos of tests running on a Docker Selenium Grid?
Add the selenium/video image as a sidecar container next to each node, sharing the node's display through DISPLAY_CONTAINER_NAME, and mount a folder for the mp4 files. Newer Grid versions also support recording per session by setting the se:recordVideo capability with Dynamic Grid. Name videos with se:name so they match test names. Keep videos only for failed tests or for a few days, because they use a lot of disk space.
17
How do you extract an auth token with JSON Extractor and use it in later JMeter requests?
Add a JSON Extractor as a child of the login sampler. Set the variable name to token, the JSON path expression to $.access_token, match number 1 and a default like TOKEN_NOT_FOUND so failures are visible. Then add an HTTP Header Manager at Thread Group level with Authorization set to Bearer ${token}. Each thread extracts and uses its own token, because JMeter variables are per thread.
18
How do you validate a response against a JSON schema in REST Assured?
Add the json-schema-validator dependency, place the schema file in src/test/resources, and assert with then().body(matchesJsonSchemaInClasspath("user-schema.json")). Schema validation checks field types, required fields and structure, so it catches contract changes that value checks might miss. It complements, not replaces, assertions on business values like status or totals.
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.
21
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").
22
Tell me about a time you mentored a junior tester in Java and automation.
Situation: two new joiners from manual testing struggled with framework code. Task: help them contribute within a sprint. Action: I paired with them daily for an hour, gave small tasks like adding a locator then a full test, and reviewed their code with explanations rather than rewriting it. Result: within three weeks both were writing tests independently, and our automation backlog shrank.
23
After aborted Jenkins builds, Grid slots stay busy and new tests wait. How do you handle it?
When a build is killed, driver.quit() never runs, so sessions stay open until the node notices. Set a sensible session timeout on nodes, such as SE_NODE_SESSION_TIMEOUT of 300 seconds, so idle sessions are cleaned up. Always call quit in an @AfterMethod with alwaysRun or a finally block. In CI, bring the Compose Grid up per build and tear it down in a post always step, so each build gets a fresh Grid.
24
Your API tests started failing with SSL handshake errors on a new test server. What do you do?
First confirm the server uses a self-signed or internal certificate. The proper fix is to import the company CA certificate into a truststore and configure REST Assured with trustStore(path, password). As a temporary measure in a test environment only, relaxedHTTPSValidation() skips checks. Never use relaxed validation against production, and raise the certificate issue with the infra team.
25
Why do you want to work as an automation tester rather than a manual tester?
Situation: in my internship I repeated the same regression checks every release. Task: I wanted to free time for exploratory testing. Action: I learnt Selenium and Java and automated our login and search regression in my spare time. Result: the checks went from two hours to ten minutes, and I realised I enjoy building tools that improve quality, which is why I want this role.
26
What is the difference between getText() and getAttribute()?
// 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);
}
29
How would you explain to a manager why mobile automation estimates are higher than web estimates?
Situation: a manager questioned why my mobile estimate was nearly double the web one. Task: justify it with facts. Action: I listed the extra work: two platforms with separate locators, device and OS version matrix, slower sessions, app builds and signing, gestures and permissions, and device lab maintenance. I showed timings from a pilot of five tests. Result: the manager accepted a phased plan starting with Android smoke tests, and later estimates were trusted because they were data-backed.
30
Tell me about a time you set up test infrastructure that other teams started using.
Situation: three product teams each kept their own unstable Grid VMs. Task: provide one reliable shared Grid. Action: I set up a Docker-based Grid with pinned images, health checks, video for failures and a short onboarding guide, then ran a pilot with one team and fixed their issues before opening it up. Result: all three teams moved within a quarter, VM costs dropped and Grid-related failures fell sharply.
31
Response time grows slowly over a six-hour soak test while load stays constant. What does it suggest?
A steady rise under constant load usually indicates a resource leak, such as memory not being freed, growing caches, unclosed database connections or threads, or log and temp files filling disk. Check heap usage and garbage collection trends, connection pool counts and open file handles over time. A heap dump comparison can show which objects grow. Share the evidence with developers, since such issues rarely appear in short tests.
32
How do you handle dynamic elements whose ids change?
Use multipart: given().multiPart("file", new File("src/test/resources/report.pdf"), "application/pdf").formParam("type", "invoice").when().post("/upload").then().statusCode(200). REST Assured sets the multipart/form-data content type automatically. Verify both the status and the response, such as the returned file id or size, and test edge cases like empty, oversized and wrong-type files.
35
What is the difference between an array and an ArrayList?
Merge combines branches by creating a merge commit, keeping the full history exactly as it happened. Rebase replays your commits on top of another branch, producing a straight, linear history without a merge commit. Rebase is good for tidying a local feature branch before a pull request; never rebase commits that others have already pulled, because it rewrites history.
37
Chrome inside a Docker node keeps crashing with session deleted because of page crash. How do you fix it?
This is almost always shared memory exhaustion, because Docker's default /dev/shm of 64 MB is too small for Chrome. Set shm_size: 2gb in Compose or --shm-size=2g in docker run. Also check the container's memory limit and the number of sessions per node, since several browsers in one container multiply memory use. Heavy pages or memory leaks in long sessions can also crash tabs, so restart sessions between test classes.
Method chaining means page methods return a page object, either this or the next page, so calls can be linked: loginPage.enterUser("asha").enterPassword("x").submit().openOrders(). Returning the next page models navigation and makes tests read like a user journey. Be careful when an action can lead to different pages; return the correct type or provide separate methods for success and failure.
39
How do you create a custom parameter type in Cucumber?
Annotate a method with @ParameterType, giving a regex and returning a domain object. For example @ParameterType("admin|manager|viewer") public Role role(String name) { return Role.valueOf(name.toUpperCase()); } lets you write steps like "I log in as {role}". It keeps conversion logic in one place, makes steps type-safe and gives clearer errors when an invalid value is used.
40
How do you handle a test that is flaky only in headless mode?
Set window size explicitly, use proper waits, check animations and viewport differences, and capture screenshots and logs to find timing issues.
Tips to crack the NetApp Automation Testing interview
Revise C programming, memory management, operating systems and file systems, which are frequently tested for storage engineering roles.
Learn storage basics such as RAID, snapshots, replication and protocols like NFS, SMB and iSCSI before interviews.
Practise DSA problems and be ready to debug code or explain behaviour of a program step by step.
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; NetApp interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the NetApp Automation Testing interview?
Candidates usually go through 4 stages: Online coding assessment; Technical round 1 (DSA + C); Technical round 2 (OS, storage or networking); Hiring manager 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 NetApp Automation Testing interview?
This practice set leans on Selenium Grid & Docker (8), Selenium WebDriver (7), REST Assured (5), Performance Testing with JMeter (4). Revise those first, then practise explaining one or two of your own projects end to end, because most NetApp interviewers ask you to walk through real work.
Are these the exact questions asked at NetApp?
No. These are curated practice questions that match the skills and difficulty usually tested in product interviews like NetApp's. They are not a leaked or verified list of past questions.
Where does NetApp hire Automation Testing professionals in India?
NetApp has large teams in Bengaluru. Openings and locations change often, so check the NetApp careers page and filter by city and experience.
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