EPAM Systems Cloud Devops Engineer Interview Questions and Answers

Q1. Explain CI/CD pipeline .
Ans. 
CI/CD pipeline is a set of automated processes that allow developers to continuously integrate code changes and deploy them to production.
• Continuous Integration (CI) involves automatically building and testing code changes as they are committed to a shared repository.

• Continuous Deployment (CD) involves automatically deploying code changes to production environments after passing automated tests.

• CI/CD pipelines typicall...read more
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Q2. Explain daemonset in kubernetes.
Ans. 
DaemonSet ensures that all or some nodes run a copy of a Pod
• DaemonSet is a Kubernetes resource that ensures a copy of a Pod is running on all or some nodes in the cluster

• It is useful for running a single instance of a Pod on every node, such as log collection or monitoring agents

• DaemonSet automatically adds or removes Pods as nodes are added or removed from the cluster
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Q1. Explain the networking services in AWS.
Ans. 
AWS provides a variety of networking services to help users manage their network infrastructure.
• Virtual Private Cloud (VPC) allows users to create isolated networks within the AWS cloud

• Elastic Load Balancing distributes incoming traffic across multiple instances to ensure high availability

• Route 53 is a scalable domain name system (DNS) web service

• Direct Connect allows users to establish a dedicated network connection b...read more
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Q2. What is terraform module?
Ans. 
Terraform module is a reusable, configurable, and self-contained collection of Terraform resources.
• Terraform modules help organize and reuse code for infrastructure components

• Modules can be shared and reused across different projects

• Modules can have input variables to customize their behavior

• Modules can output values that can be used by other parts of the infrastructure code
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Q1. Why GitOps tool ?
Ans. 
GitOps tools help automate infrastructure management, version control, and deployment processes.
• Enables infrastructure as code practices

• Facilitates version control for infrastructure configurations

• Automates deployment processes

• Promotes collaboration and visibility among team members

• Examples: Argo CD, Flux, Jenkins X
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Q2. What is AWS secret manager?
Ans. 
AWS Secret Manager is a service that helps you protect access to your applications, services, and IT resources.
• It allows you to securely store, manage, and retrieve sensitive credentials and configuration data.

• You can rotate, manage, and retrieve secrets throughout their lifecycle.

• Integrates with AWS services like Lambda, EC2, RDS, and more for secure access to secrets.

• Helps you meet security and compliance requirement...read more
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Q1. How you do troubleshoot, explain you any experience
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Q2. Explain procedure of application deployment on Windows server.
Ans. 
Application deployment on Windows server involves packaging the application, configuring the server, and deploying the application using tools like IIS or PowerShell.
• Package the application into a deployable format such as a zip file or MSI installer

• Configure the Windows server with necessary dependencies and settings for the application to run

• Deploy the application using tools like Internet Information Services (IIS) ...read more
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30 Minutes Round- Easy to moderate level

Q1. Day to day activities?
Ans. 
Day to day activities involve managing Azure DevOps pipelines, monitoring builds, resolving issues, collaborating with teams.
• Managing Azure DevOps pipelines for continuous integration and deployment

• Monitoring builds and deployments for any issues or failures

• Resolving any issues that arise during the development process

• Collaborating with development teams to ensure smooth workflow and communication

• Implementing best prac...read more
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Q2. Quetsions on various devops tools
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Q1. Questions on Docker
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Aptitude was mix of questions from logical reasoning, english grammar to simple numerical problems.

Q1. Questions were regarding projects done.
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Online self assessment followed by round 2(basic of OS, networking, databases), then round 3(technical work exp.) then round 4 with Manager discussion.

Q1. Question on os, networking, database,
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Q1. Ansible, Jenkins, Docker, Sonarqube, Prometheus and grafana, Linux commands
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Do basic aptitude and one coding question.

Q1. Be patient. You'll definately crack if your basic of programming and oops are clear.
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Q2. Questions specific to my final year project and code review.
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