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Top 50 API Testing Interview Questions and Answers (Detailed Guide for 2025)

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Top 50 API testing interview questions and detailed answers : Basic Questions What is API testing? API testing involves validating the functionality, reliability, performance, and security of an API. It ensures that the API behaves as expected by testing the endpoints, request/response structures, and error handling. What are APIs? APIs (Application Programming Interfaces) are sets of protocols and tools that allow different software applications to communicate with each other. They define the methods and data formats for interaction between systems. How is API testing different from GUI testing? API testing focuses on verifying the back-end functionality and business logic, ensuring correct data exchange and processing. In contrast, GUI testing deals with testing the front-end user interface and user experience elements. What are common protocols used in API testing? Some common protocols for API testing are REST (Representational State Transfer), SOAP (Simple Object...
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Comprehensive DevOps Q&A for Aspiring Professionals

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  Top 45 DevOps Interview Questions and Answers 1. What is DevOps? DevOps is a cultural and technical movement that combines development (Dev) and operations (Ops) to improve collaboration, automate workflows, and deliver software faster and more reliably. 2. What are the key principles of DevOps? Collaboration and communication. Automation of processes. Continuous integration and delivery. Monitoring and feedback. Infrastructure as Code (IaC). 3. What is CI/CD? CI (Continuous Integration): Developers frequently merge code changes into a shared repository, and automated builds and tests are run. CD (Continuous Delivery/Deployment): The code is automatically deployed to production or staging environments after passing CI. 4. What is Infrastructure as Code (IaC)? IaC is the practice of managing and provisioning infrastructure through code instead of manual processes, using tools like Terraform, Ansible, and CloudFormation. 5. What are some popular DevOps tools? CI/CD: Jenkins, GitH...
Location: Bengaluru, Karnataka, India
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What comprehensive steps can I take to launch a successful DevOps career and significantly boost my visibility in this competitive field?

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 DevOps is a broad and dynamic field that integrates software development (Dev) and IT operations (Ops) to improve collaboration, streamline processes, and deliver software efficiently and reliably.  Here’s an overview of DevOps career paths and how to get started. 1. Key Roles in DevOps a. Entry-Level Roles DevOps Engineer (Junior/Associate): Focuses on implementing CI/CD pipelines, managing infrastructure, and supporting development and operations teams. Site Reliability Engineer (SRE) (Junior): Combines software engineering and systems administration to create scalable and reliable systems. Cloud Engineer: Focuses on cloud platform management (AWS, Azure, GCP) and deploying scalable infrastructure. Build/Release Engineer: Handles code compilation, builds, and deployment processes. b. Mid-Level Roles DevOps Specialist: Oversees more complex CI/CD systems, manages automation tools, and optimizes workflows. Infrastructure Engineer: Designs and maintains IT ...
Location: Bengaluru, Karnataka, India
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Comprehensive Selenium WebDriver Syntax for Effective Test Automation

Comprehensive Selenium WebDriver Syntax for Effective Test Automation public static void main(String[] args ) throws InterruptedException, IOException { System. setProperty ( "webdriver.chrome.driver" , "./Drivers/chromedriver.exe" ); WebDriver driver = new ChromeDriver(); driver .manage().window().maximize(); driver .manage().timeouts().implicitlyWait(30, TimeUnit. SECONDS ); driver .get( "https://www.w3schools.com/html/html5_draganddrop.asp" ); //Actions MouseOver WebElement src = driver .findElement(By. xpath ( "//input[@id='name']" )); WebElement trg = driver .findElement(By. xpath ( "//input[@id='city']" )); Actions action = new Actions( driver ); action .dragAndDrop( src , trg ).build().perform(); action .contextClick( src ).build().perform(); action .moveToElement( src ).build().perform(); //DropDown WebElement country = driver .findElement(By. xpath ( "//input[text()='country']" )); Selec...
Location: Bengaluru, Karnataka, India
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Explore essential Java programs commonly asked in interviews, offering valuable coding insights and practice.

 Frequently Asked Java Program 1. Find Duplicate Word  public class DuplicateWordFinder { public static void main(String[] args ) { String input = "Tata,Swift,Audi,Mercedes,Tata,Renault" ; String[] word = input .split( "," ); Set<String> uniqWord = new HashSet<>(); for (String words : word ) { uniqWord .add( words .trim()); } for (String words : uniqWord ) { System. out .println( "Uniq Words are : " + words ); } } } 2.  Even Letter Print From String import java.util.Scanner; public class EvenLetterPrintFromString { public static void main(String[] args ) { // TODO Auto-generated method stub Scanner sc = new Scanner(System. in ); System. out .println( "Enter the Words: " ); String input = sc .nextLine(); for ( int i = 1; i <= input .length() - 1; i += 2) { System. out .println( input .charAt( i )); } } }   3. Remove special characters from string in java import java.util.Scanner; public class ExtractS...
Location: Bengaluru, Karnataka, India
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