Patnaik Steels & Alloys Interview Questions and Answers

DOM is a tree-like structure representing the HTML document, while Virtual DOM is a lightweight copy of the DOM.

• DOM is the actual representation of the HTML document in the browser's memory.

• Virtual DOM is a concept where a lightweight copy of the DOM is created and manipulated instead of directly modifying the actual DOM.

• Changes made to the Virtual DOM are compared with the actual DOM, and only the necessary updates are applied to the real DOM, resulting in better performance...read more

I learn new technologies through a combination of self-study, online resources, and practical application.

• I regularly read technical blogs, articles, and books to stay updated on the latest technologies.

• I participate in online forums and communities to learn from and collaborate with other developers.

• I take online courses and tutorials to gain in-depth knowledge and hands-on experience.

• I work on personal projects or contribute to open-source projects to apply and reinforce my...read more

To build an application from scratch, I would follow a systematic approach that includes planning, designing, developing, testing, and deploying.

• Define the purpose and scope of the application

• Identify the target audience and their needs

• Create a detailed plan and timeline

• Design the user interface and user experience

• Choose the appropriate technology stack

• Write clean and maintainable code

• Test the application thoroughly

• Deploy the application and monitor its performance

• Continuousl...read more

Answers to questions related to Pro*C, PL/SQL, Linux permissions, and SQL queries.

• Host variable is a variable declared in the host program and used in Pro*C program

• Indicator variable is used to indicate the null value of a column in Pro*C

• NVL is a function in Oracle that returns a specified value if the expression is null

• Cursor is a pointer to a result set returned by a SQL statement in PL/SQL

• %ROWTYPE is a record type that represents a row in a table or view in PL/SQL

• Linux per...read more

Implement a List, stream out the list and filter out all odd numbers.

• Create a List object and add elements to it

• Use stream() method to convert List to Stream

• Use filter() method to filter out odd numbers

• Use forEach() method to print the filtered list

Spring and Spring-boot are popular Java frameworks for building web applications.

• Spring provides a comprehensive programming and configuration model for modern Java-based enterprise applications.

• Spring-boot is an opinionated framework that simplifies the configuration and deployment of Spring applications.

• Both frameworks provide features such as dependency injection, web MVC, data access, security, and more.

• Example: @RestController annotation in Spring-boot can be used to cre...read more

Microservices are a software architecture style where complex applications are broken down into smaller, independent services.

• Microservices communicate with each other through APIs.

• Each microservice is responsible for a specific task or function.

• Microservices can be developed, deployed, and scaled independently.

• They promote flexibility, scalability, and resilience in software development.

• Examples of companies using microservices include Netflix, Amazon, and Uber.