10+ Interview Questions and Answers

201 and 200 status codes are similar but have different meanings.

• 200 means the request was successful and the server returned the requested data

• 201 means the request was successful and the server created a new resource

• Developers use 201 when a new resource is created, such as a new user account or a new post on a blog

• Using the correct status code helps with proper error handling and debugging

Yes, I know how to create pivot tables in Excel.

• Select the data you want to pivot

• Go to the 'Insert' tab and click on 'PivotTable'

• Choose where you want the pivot table to be placed

• Drag and drop fields into the 'Rows' and 'Values' section to create the pivot table

PI planning stands for Program Increment planning, a key event in Agile development where teams plan and coordinate their work for the upcoming program increment.

• PI planning involves multiple Agile teams coming together to align on priorities, dependencies, and objectives for the upcoming program increment.

• It typically lasts for 2 days and includes activities such as backlog refinement, estimating, and dependency mapping.

• The output of PI planning is a plan that outlines the f...read more

Used SoapUI for testing web services and API endpoints in the project.

• Created test suites and test cases in SoapUI.

• Executed functional and load tests using SoapUI.

• Validated response data and status codes.

• Integrated SoapUI with Jenkins for continuous integration.

• Generated reports and logs for test results analysis.

What is the recursive function to print the factorial of a given number?

• Define a function that takes an integer as input

• Check if the input is 0 or 1, return 1 if true

• Otherwise, call the function recursively with n-1 as input and multiply it with n

• Print the result

Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

• Start from the first element and compare it with the next element

• If the next element is smaller, swap them

• Repeat this process until the end of the list is reached

• Repeat the above steps for each element in the list

• The list is now sorted in ascending order

Microservices are a software development technique where an application is composed of small, independent services that communicate with each other.

• Microservices are small, independent services that focus on specific business capabilities.

• Each microservice can be developed, deployed, and scaled independently.

• Microservices communicate with each other through APIs.

• Monolith is a single, large application where all components are tightly coupled.

• Monoliths are typically harder to ...read more

Various types of testing were conducted in the past including functional testing, regression testing, performance testing, and user acceptance testing.

• Functional testing to ensure the software functions as expected

• Regression testing to check for any new bugs introduced after changes

• Performance testing to assess the speed and stability of the software

• User acceptance testing to validate if the software meets user requirements

There are two types of upsets: positive upsets and negative upsets.

• Positive upsets occur when the workpiece is larger than expected, causing interference with the tool or machine.

• Negative upsets occur when the workpiece is smaller than expected, leading to inaccurate machining or potential damage.

• Examples: Positive upset - workpiece is oversized due to material expansion. Negative upset - workpiece is undersized due to material shrinkage.

Computer Numerical Control

• Stands for Computer Numerical Control

• Used for automating machine tools like lathes, mills, routers, and grinders

• Programmed with a code to control the movements of the machine

• Increases precision and efficiency in manufacturing processes

UAT testing involves testing the system in a real-world scenario by end users to ensure it meets their requirements.

• Understand the requirements and scope of the system

• Create test cases based on user scenarios

• Execute test cases with real users

• Document and report any issues found

• Obtain user feedback for improvements

Agile process is a project management approach that emphasizes flexibility, collaboration, and incremental development.

• Agile process involves breaking down projects into small, manageable tasks called user stories.

• It focuses on frequent communication and collaboration between team members.

• Iterations, or sprints, are used to deliver working software in short timeframes.

• Adaptability and responding to change are key principles of agile process.

• Examples of agile methodologies inc...read more

Object is an instance of a class. Class is a blueprint for creating objects.

• Objects have properties and methods that are defined by their class.

• Classes can inherit properties and methods from other classes.

• Example: A class 'Car' can have objects 'Honda', 'Toyota', etc.

• Example: A class 'Animal' can have objects 'Dog', 'Cat', etc.

Orchestrating microservices involves managing communication, coordination, and deployment of individual services to work together seamlessly.

• Use a service mesh like Istio or Linkerd to handle communication between microservices

• Implement a centralized orchestration tool like Kubernetes to manage deployment and scaling of microservices

• Utilize API gateways to control access and routing of requests to different microservices

Patterns for microservice communication involve synchronous and asynchronous methods to ensure reliable and efficient communication.

• Use synchronous communication for simple interactions between services, such as REST APIs.

• Implement asynchronous communication for more complex interactions, like message queues or event-driven architecture.

• Consider using a combination of both synchronous and asynchronous communication depending on the specific requirements of each microservice.

• U...read more

CQRS pattern separates read and write operations in an application

• CQRS stands for Command Query Responsibility Segregation

• It separates the read and write operations into two different models

• Commands are used for write operations, while queries are used for read operations

• Helps in scaling and improving performance by optimizing each model separately