Vuram Technical Engineer Interview Questions and Answers

Q1. What is CICD ?
Ans. 
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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Q1. How does spring injects dependencies
Ans. 
Spring injects dependencies through inversion of control and dependency injection.
• Spring uses inversion of control to manage objects and their dependencies.

• Dependencies are injected into a class through constructor injection, setter injection, or field injection.

• Spring container is responsible for creating and managing objects and their dependencies.

• Example: @Autowired annotation is used for dependency injection in Spr
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Q2. How does Hibernate connects to DB
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Hibernate connects to the database using JDBC (Java Database Connectivity) API.
• Hibernate uses JDBC API to establish a connection to the database.

• It uses JDBC drivers to communicate with the database.

• Hibernate configuration file contains database connection details.

• SessionFactory in Hibernate is responsible for creating sessions and managing connections.
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Q1. How to secure your APIs
Ans. 
Securing APIs involves using authentication, authorization, encryption, and monitoring.
• Implement authentication mechanisms such as OAuth, JWT, or API keys

• Use authorization to control access to APIs based on roles and permissions

• Encrypt data transmission using HTTPS/TLS to prevent eavesdropping

• Implement rate limiting and throttling to prevent abuse and DDoS attacks

• Regularly monitor API traffic and logs for suspicious ac
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Q2. How can you configure multiple DBs in your application
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Multiple DBs can be configured in an application by using database connection pooling, configuring multiple data sources, and managing transactions across databases.
• Use database connection pooling to efficiently manage connections to multiple databases

• Configure multiple data sources in the application to connect to different databases

• Implement transaction management to ensure data consistency across multiple databases
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Q1. Family Background and Career History
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Q2. Salary Expectations
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Q1. Cisco Servers Installation
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Q2. HPe servers installation
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Q1. They first ask me about my project then ask more how it was working ,and more deep questions on that to understand how much I know about the project I worked on .
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Q2. Spring Authentitation and Authorization,And Kubernetes
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Q1. Tell about your project?
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Q2. Whats the difference bn confidence and over confidence
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Prepare for basic aptitude and verbal abilities questions.

Q1. Self intro, explain about your UG project and salary expected
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Q1. What are you Aiming for ?
Ans. Let them what you feel like clearly.
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Q2. What you have done in Education?
Ans. You can't lie about it. It is in your Mark sheet.
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Q1. Almost same questions. with your expectation and what you understand about the company.
Ans. Being fresher, I did R&D about the company and scope of position I will be entering into.
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Q1. Nodes and element sizes
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