Druva Staff Software Engineer Interview Questions and Answers

Q1. Starts with a introduction, Core Java concepts, OOPS concepts, Singleton design pattern, Spring boot annotations like service, restcontroller.
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Q2. DSA logical questions like 2nd highest number. How to find missing number from an array.
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Q1. Tell me about yourself.
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I am a software engineer with 5 years of experience in developing web applications using Java, Spring Boot, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring Boot, and Angular

• Strong problem-solving skills

• Experience working in Agile development environment

• Bachelor's degree in Computer Science from XYZ University
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Q2. Tell me about your family.
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I come from a close-knit family of five, including my parents, older sister, and younger brother.
• Close-knit family of five

• Parents, older sister, and younger brother

• We enjoy spending time together traveling and trying new restaurants
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Q3. Why do you want to change the company
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Seeking new challenges and opportunities for growth in a different environment.
• Desire for new challenges and learning opportunities

• Seeking a better work-life balance

• Interested in working with new technologies or industries

• Looking for a more collaborative team environment
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Q4. After that interviewer describes my work and position in the company.
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Q1. What is CICD ?
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CICD stands for Continuous Integration and Continuous Deployment. It is a software development practice where code changes are automatically built, tested, and deployed.
• Automates the process of integrating code changes into a shared repository

• Automatically builds and tests the code to ensure it is functional

• Automatically deploys the code to production or staging environments

• Helps in detecting and fixing integration err
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Q2. How to create image out of running container ?
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To create an image out of a running container, you can use the 'docker commit' command.
• Use 'docker commit' command to create an image from a running container

• Syntax: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

• Example: docker commit container_id repository_name:tag
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Q3. What is the difference between docker add and copy command?
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Docker add command can fetch a file from a URL and add it to the image, while copy command copies files from the host machine to the image.
• Docker add command can fetch files from URLs and add them to the image

• Copy command copies files from the host machine to the image

• Add command can also automatically extract compressed files during the build process

• Copy command is more commonly used for copying local files
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Q4. What is freestyle project and pipeline ?
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A freestyle project is a type of project in Jenkins that allows users to configure the build process in any way they want. A pipeline is a set of automated steps that define the process for building, testing, and deploying code.
• Freestyle project in Jenkins allows users to configure build process manually

• Pipeline in Jenkins is a set of automated steps for building, testing, and deploying code

• Freestyle projects are more ...read more
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Q5. What is the difference between docker swarm and docker compose ?
Ans. 
Docker Swarm is used for orchestrating multiple Docker containers across multiple hosts, while Docker Compose is used for defining and running multi-container Docker applications.
• Docker Swarm is a container orchestration tool that allows you to manage a cluster of Docker hosts.

• Docker Compose is a tool for defining and running multi-container Docker applications.

• Docker Swarm is used for scaling and managing a cluster of...read more
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Q1. What is the project you worked can you plz explain?
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Q2. What is VPC ?
Ans. 
VPC stands for Virtual Private Cloud, a virtual network dedicated to a single organization's resources in the cloud.
• Allows organizations to have control over their virtual network environment

• Enables customization of network configuration

• Provides security by allowing isolation of resources

• Can connect to on-premises data centers or other VPCs using VPN or Direct Connect
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Q3. What is CICD pipeline and its stages ?
Ans. 
CICD pipeline is a process that automates the building, testing, and deployment of software.
• Continuous Integration (CI) - code changes are integrated into a shared repository multiple times a day.

• Continuous Testing - automated tests are run to ensure code quality.

• Continuous Deployment - code changes are automatically deployed to production.

• Stages include: build, test, deploy, and monitor.

• Tools like Jenkins, GitLab, and
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Q4. VPC peering concept ?
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VPC peering allows connecting two VPCs to communicate using private IP addresses.
• VPC peering enables instances in different VPCs to communicate as if they are within the same network.

• Traffic between peered VPCs stays within the private IP space and does not traverse the internet.

• VPC peering does not involve a gateway, VPN, or direct connection.

• Both VPCs must have non-overlapping IP ranges for successful peering.

• Example...read more
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Q5. Whole concept of VPC , subnet and route table and NAT gateway ?
Ans. 
VPC is a virtual private cloud that allows you to create isolated networks within the cloud environment. Subnets are subdivisions of a VPC, route tables define how traffic is directed within the VPC, and NAT gateway allows instances in a private subnet to access the internet.
• VPC is a virtual private cloud that provides a logically isolated section of the AWS Cloud where you can launch resources.

• Subnets are subdivisions...read more
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Q1. Basics Quesestions?
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There were 30 questions on the aptitude test, all of which were part of the total count.

I have three questions: two related to data structures and algorithms, and one concerning SQL.

Q1. Got two questions DSA medium and Easy one
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Q1. Springboot notations
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Q2. How to handle multiple request on springboot
Ans. 
Use thread pooling and asynchronous processing to handle multiple requests efficiently in Spring Boot.
• Implement thread pooling to manage multiple requests concurrently.

• Use asynchronous processing to handle requests without blocking the main thread.

• Consider using reactive programming with Spring WebFlux for better scalability.

• Optimize database queries and external API calls to reduce response times.

• Implement caching mec...read more
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Q1. Do you have working experience of SwiftUI
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Q2. Have you ever implemented or worked with server driven UIs
Ans. 
Yes, I have experience implementing server driven UIs.
• Implemented server driven UIs using JSON responses to dynamically update UI elements

• Worked with frameworks like React and Angular to handle server driven UI updates

• Used server driven UIs to efficiently manage and display large amounts of data
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Q1. What is closure and types?
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Closure is a function that captures variables from its surrounding scope, allowing it to access those variables even after the scope has closed.
• Closure allows a function to access variables from its lexical scope even after the function has finished executing.

• Types of closures include lexical closures, which capture variables from the surrounding lexical scope, and function closures, which capture variables from the fu...read more
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Q2. What is Core data and all operations with example/scenarios
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Core Data is a framework provided by Apple for managing the model layer objects in an iOS application.
• Core Data is used for storing, retrieving, and managing data in an iOS app.

• It provides an object-oriented interface to work with data.

• Operations include creating, reading, updating, and deleting data.

• Example: Creating a new record in Core Data for a user profile.

• Example: Fetching a list of items from Core Data to displ
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Q1. Why you want to join the company?
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Q2. Why should we hire you
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Q1. What is server and abap server
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A server is a computer or software that provides functionality for other programs or devices. ABAP server is a server that runs ABAP programs.
• A server is a computer or software that provides services or resources to other computers or programs.

• ABAP server is a server that runs ABAP (Advanced Business Application Programming) programs, commonly used in SAP systems.

• ABAP server handles requests from clients and executes A...read more
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Q1. How pagination work in jpa
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Pagination in JPA allows for retrieving a subset of results from a query by specifying a limit and offset.
• Use the setFirstResult() method to specify the starting index of the results to retrieve

• Use the setMaxResults() method to specify the maximum number of results to retrieve

• Combine setFirstResult() and setMaxResults() to implement pagination in JPA queries
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Q2. How to create restful api
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To create a RESTful API, define endpoints, use HTTP methods, handle requests and responses, and follow REST principles.
• Define endpoints for different resources (e.g. /users, /products)

• Use HTTP methods like GET, POST, PUT, DELETE for CRUD operations

• Handle requests and responses in JSON format

• Follow REST principles like statelessness, uniform interface, and client-server architecture
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Q1. Coding question
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Q2. Asked to make some component in react
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Q1. Javascript questions
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Q2. Normal js questions
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