QA Interview Questions for QA role | 4 Years Experience

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1. Tell Me About Yourself

Sample Answer

I am a QA Engineer with 4 years of experience in Manual and Automation Testing. I have worked extensively on Web and API automation using Selenium WebDriver, Java, TestNG, Maven, and RestAssured. I have experience in designing and maintaining Hybrid frameworks with Page Object Model (POM).

I am involved in requirement analysis, test case design, execution, defect reporting using Jira, CI/CD integration using Jenkins, and cross-browser testing. I also have experience in API automation and validating responses using POJO classes.

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2. Test Case: Search Button on Amazon Not Working

Sample Answer

Test Case ID: TC_AMZ_001

Title: Verify Search Button Functionality

Precondition: User navigates to Amazon homepage

Test Steps:

1. Open browser
2. Navigate to https://www.amazon.in
3. Enter product name in search textbox (e.g., “Laptop”)
4. Click on Search button

Expected Result:
User should be redirected to search results page displaying relevant products.

Actual Result:
Search button does not respond / No navigation happens.

Defect Raised:

• Summary: Search button not working on homepage
• Severity: High
• Priority: High
• Steps to Reproduce: Mention above steps
• Environment: Chrome 120, Windows 10

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3. Selenium 4 – Navigate to Google

Sample Answer

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class GoogleTest {
 public static void main(String[] args) {
 WebDriver driver = new ChromeDriver();
 driver.get("https://www.google.com");
 driver.manage().window().maximize();
 driver.quit();
 }
}

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4. What is WebDriver? Interface or Class?

Sample Answer

WebDriver is an interface in Selenium. It defines methods like get(), findElement(), close(), quit().
Classes like ChromeDriver, FirefoxDriver implement this interface.

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5. Can’t We Write ChromeDriver Instead of WebDriver?

Sample Answer

We can write ChromeDriver driver = new ChromeDriver(); but best practice is:

WebDriver driver = new ChromeDriver();

Because it follows Abstraction & Polymorphism. If we change browser to FirefoxDriver, we only change the object, not the reference type.

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6. Difference Between Class and Interface

Sample Answer

Class	Interface
Can have method implementation	Contains abstract methods (before Java 8)
Supports constructors	No constructors
Single inheritance	Multiple inheritance supported

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7. Why Can’t We Write Class Logic in Interface?

Sample Answer

Interface is meant to provide 100% abstraction (design level). Logic should be written in implementing classes to ensure flexibility and reusability. Before Java 8, interfaces could not contain method bodies.

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8. Login to Google – Framework Structure (POM)

Sample Answer

BaseClass:

public class BaseClass {
 public static WebDriver driver;

 public void initializeDriver() {
 driver = new ChromeDriver();
 driver.manage().window().maximize();
 }
}

LoginPage (POM):

public class LoginPage {

 WebDriver driver;

 By email = By.id("identifierId");
 By nextBtn = By.id("identifierNext");

 public LoginPage(WebDriver driver){
 this.driver = driver;
 }

 public void login(String username){
 driver.findElement(email).sendKeys(username);
 driver.findElement(nextBtn).click();
 }
}

Test Class:

public class LoginTest extends BaseClass {

 @Test
 public void verifyLogin(){
 initializeDriver();
 driver.get("https://accounts.google.com");

 LoginPage lp = new LoginPage(driver);
 lp.login("test@gmail.com");

 Assert.assertTrue(driver.getTitle().contains("Google"));
 driver.quit();
 }
}

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9. Java Program – Find 2nd Maximum Element

Sample Answer

public class SecondMax {
 public static void main(String[] args) {
 int[] arr = {10, 5, 20, 8, 25};

 int max = Integer.MIN_VALUE;
 int secondMax = Integer.MIN_VALUE;

 for(int num : arr){
 if(num > max){
 secondMax = max;
 max = num;
 } else if(num > secondMax && num != max){
 secondMax = num;
 }
 }

 System.out.println("Second Max: " + secondMax);
 }
}

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10. Did You Develop the Framework?

Sample Answer

Yes, I contributed to developing a Hybrid framework using Selenium, Java, TestNG, Maven, and POM.
I was responsible for Base class creation, utility classes, report generation using Extent Reports, and CI integration with Jenkins.

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11. POJO Classes & API Automation Logic

Sample Answer

public class User {
 private String name;
 private String job;

 // getters and setters
}

Sending Request:

User user = new User();
user.setName("John");
user.setJob("QA");

Response response = 
given()
.contentType(ContentType.JSON)
.body(user)
.when()
.post("/users");

Extract Response:

String id = response.jsonPath().getString("id");
System.out.println(id);

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12. Jenkins – Can You Build a Pipeline?

Sample Answer

Yes, I can create Freestyle and Pipeline jobs. I configure Git repository, build triggers, Maven goals (clean test), and generate reports.

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13. Can We Use Script to Create Jenkins Pipeline?

Sample Answer

pipeline {
 agent any
 stages {
 stage('Build') {
 steps {
 sh 'mvn clean'
 }
 }
 stage('Test') {
 steps {
 sh 'mvn test'
 }
 }
 }
}

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14. Do You Know Linux?

Sample Answer

Yes, I have basic knowledge of Linux commands for navigating directories, creating files, checking logs, and running automation scripts in CI environments.

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15. Linux Command to Create a File

Sample Answer

touch filename.txt

Or

cat > filename.txt