Infosys Interview Questions, Process, and Tips

I used Jmeter for its user-friendly interface, extensive features, and ability to simulate real-world scenarios.

• Jmeter has a user-friendly interface which makes it easy to create and execute performance tests.

• It offers a wide range of features for load testing, stress testing, and performance monitoring.

• Jmeter allows for the simulation of real-world scenarios, helping to identify performance bottlenecks and optimize sy...read more

SLA in performance testing refers to the agreed upon level of service that a system must meet in terms of response time, throughput, and other performance metrics.

• SLA stands for Service Level Agreement

• It defines the expected performance metrics that a system must meet

• SLAs are typically agreed upon between stakeholders and are used to measure the performance of a system

• Examples of SLAs include response time should be le...read more

Correlation in JMeter is the process of extracting dynamic values from server responses and passing them as inputs to subsequent requests.

• Correlation is important in performance testing to simulate real user behavior.

• It involves identifying and capturing dynamic values like session IDs, tokens, etc.

• These values are then extracted using regular expressions or built-in JMeter functions.

• The extracted values are stored in ...read more

I used multiple types of listeners including JMeter listeners, PerfMon Metrics Collector, and InfluxDB Backend Listener.

• JMeter listeners

• PerfMon Metrics Collector

• InfluxDB Backend Listener

Parameterization is the process of replacing hard-coded values in a test script with variables to make the script more dynamic and reusable.

• Parameterization helps in simulating real-world scenarios by varying input data during test execution.

• It allows for running the same test script with different sets of data without the need to modify the script each time.

• Common examples of parameterization include using CSV files, ...read more

Threads are lightweight processes within a process that can run concurrently. Thread groups are a collection of threads.

• Threads are independent sequences of execution within a process.

• Thread groups are used to organize and manage multiple threads together.

• Threads within a group can share resources and communicate with each other.

• Example: In performance testing, threads can simulate multiple users accessing a system con

Reverse a string in Java using array of characters

• Convert the string to a character array

• Use two pointers to swap characters at opposite ends of the array

• Continue swapping until the pointers meet in the middle

Our framework is a hybrid framework combining data-driven and keyword-driven approaches for efficient testing.

• Combines data-driven and keyword-driven testing

• Uses reusable functions and test data

• Supports both manual and automated testing

• Provides detailed reporting and logging

• Allows for easy maintenance and scalability

Dropdowns in Selenium can be handled using Select class in WebDriver

• Use Select class from Selenium WebDriver to interact with dropdowns

• Identify the dropdown element using its locator (id, name, class, etc.)

• Create a Select object by passing the dropdown element as a parameter

• Use selectByVisibleText(), selectByValue(), or selectByIndex() methods to choose an option

• Example: WebElement dropdown = driver.findElement(By.id("...read more

Scenario is a single test case while Scenario Outline is a template for multiple test cases with different inputs

• Scenario is a single test case with specific inputs and expected outcomes

• Scenario Outline is a template for multiple test cases with placeholders for different inputs

• In Scenario Outline, examples table is used to provide different sets of inputs for each test case

I have used OOPs concepts in my Automation Framework by creating classes for different page objects and using inheritance for reusable code.

• Created a base class for common functionalities like opening browser, closing browser, etc.

• Implemented inheritance by creating child classes for specific page objects like login page, home page, etc.

• Used encapsulation to hide the internal details of the page objects and provide pub...read more

I have over 10 years of experience in Java development, working on various projects and technologies.

• 10+ years of experience in Java development

• Worked on various projects and technologies

• Strong understanding of software development lifecycle

• Experience with frameworks like Spring and Hibernate

• Knowledge of design patterns and best practices

To set up a Spring-Boot project with only OS and JDK, you need to install Maven and then create a new project using Spring Initializr.

• Install Apache Maven to manage dependencies and build the project

• Use Spring Initializr to generate a new Spring Boot project with required dependencies

• Import the project into your IDE and start coding

Commonly used Spring Boot annotations include @RestController, @Autowired, @RequestMapping, @Service, @Component, @Repository.

• @RestController - Used to define RESTful web services.

• @Autowired - Used for automatic dependency injection.

• @RequestMapping - Used to map web requests to specific handler methods.

• @Service - Used to indicate that a class is a service component.

• @Component - Used to indicate that a class is a Spring...read more

I recently developed a REST API for a banking application to handle customer transactions.

• Implemented CRUD operations for customer accounts and transactions

• Used Spring Boot framework for building the API

• Secured API endpoints using OAuth 2.0 authentication

• Utilized Swagger for API documentation

Pagination in APIs is achieved by using query parameters like page number and page size.

• Use query parameters like 'page' and 'size' to specify the page number and number of items per page.

• Implement logic in the backend to fetch and return only the specified page of data.

• Calculate the total number of pages based on the total number of items and page size.

• Include links to navigate to the next and previous pages in the AP

Implement pagination in UI by limiting results to 10 per page.

• Implement pagination logic in UI to display 10 results per page.

• Use backend query parameters like 'offset' and 'limit' to fetch specific results.

• Utilize front-end frameworks like React or Angular for efficient pagination implementation.

Actuators in Spring Boot are built-in tools that help monitor and manage the application.

• Actuators provide endpoints to monitor application health, metrics, info, etc.

• They can be used to interact with the application at runtime.

• Examples include /actuator/health, /actuator/metrics, /actuator/info, etc.

pom.xml is a configuration file in a Maven project that defines project dependencies, build settings, and plugins.

• Defines project dependencies and their versions

• Specifies build settings such as source directory, target directory, and compiler version

• Configures plugins for various tasks like compiling code, running tests, packaging the project

• Helps in managing project lifecycle phases like clean, compile, test, package,

GET is used to request data from a specified resource, while POST is used to submit data to a specified resource.

• GET requests are idempotent, meaning they can be repeated without changing the result, while POST requests are not.

• GET requests can be cached, bookmarked, and shared, while POST requests cannot.

• GET requests have a limit on the amount of data that can be sent, while POST requests do not have such limitations.

• ...read more

Yes, by implementing a RESTful API with different HTTP methods for each operation.

• Implement a RESTful API with different endpoints for each operation: GET for retrieving data, POST for supplying data, and DELETE for deleting data.

• For example, GET /data to retrieve data, POST /data to supply data, and DELETE /data/{id} to delete data by ID.

• Use proper HTTP methods and status codes to handle each operation effectively.

Yes, I have experience working with cloud technologies such as AWS, Azure, and Google Cloud Platform.

• Experience with AWS, Azure, and Google Cloud Platform

• Deploying applications on cloud infrastructure

• Working with cloud services like EC2, S3, and RDS

I have worked with technologies such as Spring Boot, Hibernate, Angular, and Docker in various projects.

• Spring Boot

• Hibernate

• Angular

• Docker