Top 250 Software Development Interview Questions and Answers

To achieve load balance and fault tolerance while deploying an application, we can use techniques like load balancing, clustering, and redundancy.

• Implement load balancing to distribute incoming traffic across multiple servers.

• Use clustering to group ...read more

To link TestNG file in Maven POM, add the TestNG dependency and plugin in POM.xml

• Add TestNG dependency in POM.xml

• Add TestNG plugin in POM.xml

• Configure TestNG plugin to run the TestNG XML file

• Example: org.testng testng 7.4.0 org.apache.maven.plug...read more

MVC stands for Model-View-Controller. It is a software architectural pattern used in web development.

• MVC separates the application into three interconnected components: the model, the view, and the controller.

• The model represents the data and busines...read more

Automation code for Login on BigBasket site using POM

• Create a new Maven project in Eclipse

• Add Selenium and TestNG dependencies in pom.xml

• Create a LoginPage class with locators and methods

• Create a TestLoginPage class with TestNG annotations

• Instantiate...read more

Power Platform is a collection of Microsoft tools that enable users to build business solutions without extensive coding.

• Power Platform consists of Power Apps, Power Automate, Power BI, and Power Virtual Agents.

• Power Apps allows users to create custo...read more

Service is the act of providing assistance or help to customers in a friendly and efficient manner.

• Service involves meeting the needs and expectations of customers

• It requires effective communication and problem-solving skills

• Examples of good service ...read more

Our server is located in a secure data center with high availability and redundancy to ensure optimal performance and data protection.

• The server is housed in a Tier 3 data center, ensuring 99.982% uptime.

• It is located in a region with robust infrastr...read more

Unit tests are written to test individual units of code to ensure they function as expected.

• Identify the unit of code to be tested

• Create test cases that cover all possible scenarios

• Use testing frameworks like JUnit or pytest

• Ensure tests are independe...read more

I have worked on various PHP frameworks including Laravel, CodeIgniter, and Symfony.

• Laravel - used for building web applications with elegant syntax and features like routing, authentication, and ORM

• CodeIgniter - lightweight framework with a small fo...read more

There are several types of validation used in production processes.

• Data validation ensures that input data meets certain criteria or rules.

• Process validation ensures that a production process consistently produces the desired output.

• Equipment validat...read more

Continuous integration is the practice of frequently merging code changes into a shared repository, while continuous delivery is the process of automatically deploying those changes to production.

• Continuous integration involves developers frequently ...read more

To build a Java app, follow a structured approach by defining requirements, designing architecture, implementing code, and testing.

• Define clear requirements and gather necessary resources

• Design the app's architecture, including modules, components, a...read more

Identify the issue, isolate the code, fix the issue, test the fix, and deploy the updated code.

• Identify the issue by reviewing logs and error messages.

• Isolate the code by identifying the specific module or function causing the issue.

• Fix the issue by ...read more

Webhooks in Jenkins are a way to trigger a build or perform an action in response to an external event.

• Webhooks allow Jenkins to receive notifications from external systems.

• They are typically used to trigger a build when a code repository is updated....read more

MVVM stands for Model-View-ViewModel. It is a design pattern used in software engineering.

• MVVM separates the user interface from the business logic

• Model represents the data and business logic

• View represents the user interface

• ViewModel acts as a media...read more

A weather app that provides accurate and up-to-date weather information.

• Include real-time weather updates

• Provide hourly and daily forecasts

• Include radar and satellite maps

• Allow users to set location and receive alerts for severe weather

• Include a widg...read more

My technology stack includes Java, Spring Boot, Hibernate, MySQL, and Angular.

• Java for backend development

• Spring Boot for creating RESTful APIs

• Hibernate for ORM

• MySQL for database management

• Angular for frontend development

• Experience with AWS and Docke...read more

Waterfall model is a linear sequential approach to software development.

• Advantages: clear and well-defined stages, easy to understand and manage, suitable for small projects with stable requirements

• Disadvantages: inflexible, difficult to make changes...read more

Webdriver interface is a part of Selenium that provides a way to interact with web browsers.

• Webdriver interface allows automation scripts to control web browsers like Chrome, Firefox, etc.

• It provides methods to interact with web elements like clickin...read more

Support package is a collection of updates and fixes, kernel is the core of the SAP system, and SAP note is a correction instruction.

• Support package: Collection of updates and fixes for SAP system.

• Kernel: Core component of the SAP system responsible ...read more

FirefoxDriver is a class in Selenium WebDriver used to automate Firefox browser testing.

• FirefoxDriver is a part of Selenium WebDriver library.

• It is used to automate testing of web applications on Firefox browser.

• It supports all the major functionalit...read more

Jenkins pipeline automates the software delivery process by defining a set of steps and actions to be executed.

• Pipeline is defined using a Jenkinsfile

• Pipeline stages define the steps to be executed

• Pipeline can include parallel stages and conditional ...read more

Automation frameworks are tools that help automate testing processes. They provide a structure for organizing test cases and results.

• Keyword-driven framework

• Data-driven framework

• Modular framework

• Hybrid framework

• Behavior-driven development framework

Microservices can be secured by implementing authentication, authorization, encryption, and monitoring.

• Implement authentication and authorization to ensure only authorized users can access the microservices.

• Use encryption to protect sensitive data in...read more

Microservices communicate with each other through APIs, message queues, or event-driven architecture.

• APIs: Microservices can communicate with each other through RESTful APIs or GraphQL.

• Message queues: Services can use message brokers like RabbitMQ or...read more

SOLID principles are a set of five design principles that help in creating maintainable and scalable software.

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open-Closed Principle: Software entities should be op...read more

Canvas apps are custom apps with a drag-and-drop interface, while model-driven apps are based on pre-built data models.

• Canvas apps allow for more customization and flexibility in design

• Model-driven apps are better suited for complex data models and b...read more