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Advance DevOps Interview Questions & Answers Preparing for an advanced DevOps interview? Here are some key topics and concepts you should be familiar with: 1. Unix Commands: - ping: Used to check the network connectivity between two devices. - telnet: A command-line tool used for remote login and communication with another host. - history: Displays the command history list. - top: Provides a dynamic, real-time view of the running system, including system summary and list of tasks. - ln: Creates links between files. - lsof: Lists open files and the processes that opened them. 2. Self-testing Code: - Writing code that includes its own automated tests to ensure functionality is correct. 3. Deployment Pipeline: - A series of automated processes to deploy a new version of software. It includes stages such as build, test, and deploy. 4. Docker Hub Features: - A cloud-based repository where Docker users and partners create, test, store, and distribute container images. 5. Relative Path: - A file path that is relative to the current working directory. 6. Unix Shell Responsibilities: - Command execution, scripting, and programming interfaces, along with user interface management. 7. Shell Variables: - Variables in Unix shell scripts that store data and can be used to manipulate and control the flow of the script. 8. Security Trainings and Standard Processes: - Emphasizes the need for regular security training and adherence to standardized processes to ensure a secure DevOps environment. These key points provide a comprehensive overview of advanced DevOps and Unix topics that are crucial for interview preparation. Good luck with your DevOps interview! #devops #interviewquestion #devopstraining #interviewprep #aws #git #azure #corporatetraining

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Interview questions for AWS Devops 1. How can automated infrastructure setup transform your DevOps workflows, and what tools (like Terraform or CloudFormation) have you used to make it seamless? 2. What are the biggest challenges you've encountered with unreliable CI/CD pipelines, such as random failures, and how do you approach debugging them without oversimplifying the errors? 3. In troubleshooting lambda function issues, how do you systematically collect and analyze logs from various sources to pinpoint root causes? 4. Should optional components in a pipeline ever cause the whole process to fail? What's your strategy for managing them—fix, remove, or isolate? 5. How does continuous deployment automate resource management across multiple environments (e.g., dev, staging, prod), and what's the ideal frequency for releasing application updates? 6. When dealing with ECR (Elastic Container Registry) failures in DevOps projects, how do you navigate publication errors and ensure smooth image handling? 7. What's your go-to method for explaining complex pipeline failures to your team, and how has gathering detailed data helped in past resolutions? **Bonus Questions to Dive Deeper (Inspired by the Abhishek veramalla):** 8. In AWS environments, how do you balance speed and reliability in CI/CD—any best practices for integrating security scans without slowing down deployments? 9. Have you implemented blue-green deployments or canary releases to minimize downtime? What pitfalls should beginners watch out for? 10. How can monitoring tools like CloudWatch or Prometheus help predict and prevent CI/CD failures before they impact production? 11. For interview prep: Describe a time when you optimized a flaky pipeline—what metrics did you track (e.g., deployment success rate, mean time to recovery)? 12. What's the role of IaC (Infrastructure as Code) in making deployments predictable, and how do you handle rollbacks in case of issues? 13. In a multi-team setup, how do you ensure CI/CD pipelines support collaboration without introducing bottlenecks? 💬 If you're interviewing soon, drop a 🔥 in the comments! 🔁 Like, share, and follow for more DevOps wisdom! #AWS #CICD #CloudEngineering #InterviewPrep #CloudEngineering #Terraform #CloudFormation #Lambda #ECR #CloudWatch #Prometheus #Grafana #InterviewPrep #TechCareers #BlueGreenDeployment #CanaryRelease #DevOpsInterviewPrep

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☁️ AWS interviews don’t have to be intimidating. Just went through this AWS Interview Guide and it’s packed with the exact insights hiring managers look for — real-world scenarios, AWS service breakdowns, and practical answers. 🔍💡 📘 Covers: ✅ IAM, VPC, EC2, S3, Lambda ✅ Core architecture questions ✅ Behavioral Qs + tech deep dives ✅ Common mistakes & how to avoid them I’m sharing this guide along with other helpful books I’ve collected — perfect for anyone prepping for DevOps, Cloud, or SRE roles. ✅ Follow me for more job-winning prep guides, cheat sheets, and DevOps resources. #AWS #AWSInterview #DevOps #CloudEngineer #InterviewPrep #AWSCertified #AWSCommunity #SRE #TechCareers #VPC #IAM #EC2 #Lambda #CloudComputing #CareerResources #EngineeringJobs #InfrastructureAsCode #CloudOps #AWSArchitecture #JobSearchHelp #TechGrowth

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📘 Terraform Mastery — One PDF to Rule Them All This comprehensive Terraform guide covers everything from installation to real-world AWS infrastructure deployment — EC2, VPCs, RDS, EKS, Docker, CI/CD with Jenkins, and more. It’s also aligned with the Terraform Associate certification, making it ideal for upskilling or interview prep. ✅ Hands-on examples ✅ AWS integrations ✅ Certification-ready ✅ Clear HCL syntax explained ✅ Bonus: Docker + ECS + ECR explained Start building cloud infrastructure like a pro — download the PDF and deep dive! 💡 #Terraform #AWS #DevOpsEngineer #CloudComputing #InfrastructureAsCode #IaC #HashiCorp #TerraformAssociate #Docker #Kubernetes #EKS #CICD #GitHubActions #CloudEngineer #CloudJobs #TerraformModules #DevOpsCommunity #LearnDevOps #TechLearning #BuildInPublic

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DevOps Hiring → making certificates the first filter. Certificate Providers → cashing in on them. I once saw an AWS certified candidate confidently say “EC3 is the latest version of EC2” in an interview. That is the problem. - Organizations assume paper equals performance. - Individuals chase certificates as entry tickets. Somewhere we lost the purpose. Real skill comes from debugging outages, scaling systems, and keeping production alive. - Use certifications as skill validators, not the end game. - Build hands-on muscle, not just memorize answers. Because in DevOps, uptime is not saved by a certificate. It is saved by the doer. Be that doer. 55K+ read our DevOps and Cloud newsletter: https://lnkd.in/gp9Uz3BE What do we cover:  DevOps, Cloud, Kubernetes, IaC, GitOps, MLOps 🔁 Consider a Repost if this is helpful

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Master AWS DevOps Troubleshooting Like a Pro! AWS is powerful, but let’s be real—troubleshooting cloud issues can feel like solving a never-ending puzzle. 🔄 Whether it's "EC2 failures, Lambda timeouts, or IAM permission headaches", mastering AWS troubleshooting is a must for every cloud engineer! Struggling with AWS issues? Get ahead with our AWS DevOps Troubleshooting Guide, covering 100+ AWS fixes—from networking nightmares to security challenges. What’s Inside? ✅ Fix EC2 & Load Balancer issues (timeouts, high CPU, scaling failures) ✅ Debug S3 permissions, public access blocks & slow uploads ✅ Solve IAM role issues & MFA authentication failures ✅ Troubleshoot RDS & DynamoDB performance bottlenecks ✅ Identify Lambda execution & API Gateway errors ✅ Fix AWS CI/CD pipeline failures & deployment blockers ✅ Resolve AWS networking issues (VPC, Route 53, NAT Gateway) ✅ Optimize ECS, EKS & containerized workloads ✅ Improve monitoring with CloudWatch, GuardDuty & X-Ray ✅ Cut costs with AWS billing & savings strategies What’s the trickiest AWS issue you’ve ever faced? Share in the comments! Let’s troubleshoot AWS like pros! This keeps the post "engaging, informative, and action-driven". Let me know if you’d like any tweaks! Feel free to share this post with your network or tag someone who might be interested! #hiring #hiringalert #teamlead #devops #immediatejoiner #helpinghands #devops Aditya Jaiswal #kubernetes

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******AWS VPC Interview Questions****** 1. How does VPC peering work? VPC peering connects two VPCs for communication using private IPs. Traffic stays within AWS without transiting the internet. 2. What are route tables, and why are they important? Route tables define paths for traffic within a VPC and to external destinations (e.g., IGW, NAT). 3. Internet Gateway vs. NAT Gateway: - IGW: Enables internet access for public subnet instances. - NAT Gateway: Provides outbound internet access for private subnet instances. 4. Purpose of Security Groups and NACLs: - Security Groups: Instance-level rules for inbound/outbound traffic. - NACLs: Subnet-level, stateless rules for traffic filtering. 5. Restricting traffic between subnets: Use NACLs or security group rules to limit access based on IP ranges or ports. 6. Designing a multi-region VPC architecture: - Use Transit Gateway or VPC peering for inter-region connectivity. - Ensure redundancy, low latency, and compliance with regulations. 7. AWS Transit Gateway vs. VPC Peering: - Transit Gateway: Central hub for connecting multiple VPCs and on-prem networks. - VPC Peering: One-to-one connection between VPCs. 8. Elastic Load Balancer (ELB) with VPC: Distributes incoming traffic across instances in subnets and enhances scalability and fault tolerance. 9. Ensuring high availability in a VPC design: - Deploy resources across multiple Availability Zones. - Use redundant IGWs, NAT Gateways, and load balancers. 10. VPC limits: Default limits: 5 VPCs per region, 200 subnets per VPC. Limits can be increased via AWS Support. #AWS #DEVOPS #Linux #VPC #EC2 #VPC #cloud #aws #devops #linux #vpc #ec2

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Many DevOps Engineers don't fully understand the structure of a Terraform project. (or the role each part plays) Here are 10 steps to organize and manage Terraform configurations: 1. Separate configurations for development, staging, and production environments. 2. Use a clear folder hierarchy for each environment. 3. Include essential files like 'main.tf`, `variables.tf', `provider.tf', and 'outputs.tf. 4. Define infrastructure resources specific to each environment. 5. Centralize reusable modules for network, compute, and data. 6. Avoid duplicating code across environments. 7. Enhance maintainability by using consistent structures. 8. Reduce errors with well-defined modules. 9. Ensure faster deployments with organized configurations. 10. Make updates easier through centralized management. Effective Terraform management is key to a smooth development workflow. Master it and you will be a valuable asset to every company. Consider a repost if this is helpful. #CloudSecurity #Terraform #Devops #AWS

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******AWS VPC Interview Questions****** 1. How does VPC peering work? VPC peering connects two VPCs for communication using private IPs. Traffic stays within AWS without transiting the internet. 2. What are route tables, and why are they important? Route tables define paths for traffic within a VPC and to external destinations (e.g., IGW, NAT). 3. Internet Gateway vs. NAT Gateway: - IGW: Enables internet access for public subnet instances. - NAT Gateway: Provides outbound internet access for private subnet instances. 4. Purpose of Security Groups and NACLs: - Security Groups: Instance-level rules for inbound/outbound traffic. - NACLs: Subnet-level, stateless rules for traffic filtering. 5. Restricting traffic between subnets: Use NACLs or security group rules to limit access based on IP ranges or ports. 6. Designing a multi-region VPC architecture: - Use Transit Gateway or VPC peering for inter-region connectivity. - Ensure redundancy, low latency, and compliance with regulations. 7. AWS Transit Gateway vs. VPC Peering: - Transit Gateway: Central hub for connecting multiple VPCs and on-prem networks. - VPC Peering: One-to-one connection between VPCs. 8. Elastic Load Balancer (ELB) with VPC: Distributes incoming traffic across instances in subnets and enhances scalability and fault tolerance. 9. Ensuring high availability in a VPC design: - Deploy resources across multiple Availability Zones. - Use redundant IGWs, NAT Gateways, and load balancers. 10. VPC limits: Default limits: 5 VPCs per region, 200 subnets per VPC. Limits can be increased via AWS Support. hashtag #AWS hashtag #DEVOPS hashtag #Linux hashtag #VPC hashtag #EC2 hashtag #VPC hashtag #cloud hashtag #aws hashtag #devops hashtag #linux hashtag #vpc hashtag #ec2

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Devops interview questions 1. How would you isolate a network within an AWS VPC? 2. How do you handle rollbacks in k8s? 3. Architectural differences between GCP VPC and AWS VPC? 4. What are network policies? 5. What would you do if you accidentally pushed creds into a remote repo? 6. How do you bring an existing resource into your Terraform state ? 7. How would you upgrade a cluster? 8. What practices would you propose to reduce compute costs across the org? 9. How would you connect two VPCs in AWS? 10. What is Terraform state drift? How can you detect and solve it? 11. How would you back up a cluster? What tools would you use? 12. Kubernetes operators 13. What are admission controllers? #AWS #Linux #DevOps

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Preparing for a DevOps interview? Read this before you do. DevOps interviews are not just about tools. They test how you think, how you troubleshoot, and how you build systems that work in the real world. Whether you are just starting out or looking to level up, here are 15 practical questions to help you prepare with confidence: 1. What is a CI CD pipeline and how would you design one for a growing team? 2. How does Infrastructure as Code work and why is it important? 3. Why are containers often preferred over virtual machines? 4. What do you do when a deployment fails in production? 5. Can you explain the difference between DevOps and Site Reliability Engineering? 6. What is GitOps and how does it improve deployment processes? 7. How do you make sure your CI CD pipeline is secure? 8. What are blue green and canary deployments and when would you use each? 9. How does Kubernetes fit into modern DevOps workflows? 10. What is the difference between Terraform and Ansible in infrastructure management? 11. What metrics matter the most in DevOps and why? 12. How do you handle secrets and sensitive data in pipelines? 13. What is Shift Left Security and how do you implement it? 14. What tools have you used for logging, monitoring, and alerting? 15. What is your approach to rolling back a failed release? You don’t have to memorize answers. Instead, focus on your understanding and how you’ve applied it in real scenarios. If any of these questions feel unclear or new to you, that is exactly where your next learning step is. Let's grow together.

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******AWS VPC Interview Questions****** 1. How does VPC peering work? VPC peering connects two VPCs for communication using private IPs. Traffic stays within AWS without transiting the internet. 2. What are route tables, and why are they important? Route tables define paths for traffic within a VPC and to external destinations (e.g., IGW, NAT). 3. Internet Gateway vs. NAT Gateway: - IGW: Enables internet access for public subnet instances. - NAT Gateway: Provides outbound internet access for private subnet instances. 4. Purpose of Security Groups and NACLs: - Security Groups: Instance-level rules for inbound/outbound traffic. - NACLs: Subnet-level, stateless rules for traffic filtering. 5. Restricting traffic between subnets: Use NACLs or security group rules to limit access based on IP ranges or ports. 6. Designing a multi-region VPC architecture: - Use Transit Gateway or VPC peering for inter-region connectivity. - Ensure redundancy, low latency, and compliance with regulations. 7. AWS Transit Gateway vs. VPC Peering: - Transit Gateway: Central hub for connecting multiple VPCs and on-prem networks. - VPC Peering: One-to-one connection between VPCs. 8. Elastic Load Balancer (ELB) with VPC: Distributes incoming traffic across instances in subnets and enhances scalability and fault tolerance. 9. Ensuring high availability in a VPC design: - Deploy resources across multiple Availability Zones. - Use redundant IGWs, NAT Gateways, and load balancers. 10. VPC limits: Default limits: 5 VPCs per region, 200 subnets per VPC. Limits can be increased via AWS Support. #AWS #DEVOPS #Linux #VPC #EC2 #VPC #cloud #aws #devops #linux #vpc #ec2

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🚀��DevOps Interview Experience :-(Azure DevOps Engineer) 🔧 Linux | Azure | Kubernetes | Terraform | CI/CD | CloudOps 1. What is the difference between Internet Gateway and NAT Gateway? 2. How do you decide between VPC Peering and Transit Gateway? 3. Why is Transit Gateway more costly than VPC Peering? 4. How do you use API Gateway and when would you choose public vs private APIs? 5. Explain the difference between S3, DynamoDB, and RDS. 6. What are the key benefits of cloud migration? 7. How do you ensure security in AWS? 8. How do you manage large migrations in Terraform? 9. What are the limitations of auto-generated Terraform code? 10. How do you secure secrets in Terraform (tools like Lowkey, SSM, Vault)? 11. What are the best practices missing in a simple Terraform S3 bucket config? 12. What are the common pod errors in Kubernetes (e.g., CrashLoopBackOff, OOMKilled)? 13. How do you size an EKS cluster for a project? 14. What happens if a microservice pod fails due to port already in use? 15. How do you enable autoscaling in Kubernetes? 16. How do you create Grafana queries for metrics like CPU, memory, error rate? 17. What steps do you take when Grafana dashboards load slowly? 18. What are Beats in the ELK stack and their use cases? 19. How do you diagnose findings in AWS Inspector? #AWS #CloudComputing #DevOps #AzureDevOps #Terraform #CI_CD #InfrastructureAsCode #CloudNative #IaC #Kubernetes #Microservices #GitOps #SecretsManagement #InterviewExperience #CloudEngineering #Automation #MultiCloud #DevOpsInterview #CrackTheInterview #TechLeadership #EngineeringExcellence #LinkedInTechCommunity

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🚀 Top Terraform Commands Every DevOps Engineer Must Know🚀 If you’re preparing for DevOps interviews or working on real-world infrastructure automation, mastering Terraform CLI commands is a must-have skill. Here’s a complete list of the most-used Terraform commands. 👇 🔹 Basic Setup & Initialization terraform -version → Check Terraform version terraform init → Initialize working directory with required plugins & providers terraform validate → Validate syntax & configuration files terraform fmt → Format Terraform code in standard style terraform providers → Show all providers used in the configuration 🔹 Plan, Apply & Destroy terraform plan → Show what changes will be made before applying terraform apply → Apply infrastructure changes terraform destroy → Delete all resources created by Terraform terraform apply -auto-approve → Skip approval step terraform plan -out=tfplan → Save plan output to a file 🔹 Workspace & Environment Management terraform workspace list → List all workspaces terraform workspace new dev → Create a new workspace terraform workspace select dev → Switch to specific workspace terraform workspace delete dev → Delete workspace 🔹 State File Management (Critical for DevOps) terraform show → Show current state or plan terraform state list → List all resources tracked in state terraform state show <resource> → Show details of a specific resource terraform state rm <resource> → Remove resource from state terraform refresh → Update state file with real resource data terraform taint <resource> → Mark a resource for recreation terraform untaint <resource> → Undo taint 🔹 Variable & Output Management terraform output → Show output variables terraform output -json → Show outputs in JSON format terraform apply -var="instance_type=t2.micro" → Pass variable from CLI terraform plan -var-file="dev.tfvars" → Use variable file 🔹 Backend & Remote State (Used in DevOps Pipelines) terraform init -backend-config="backend.hcl" → Initialize backend configuration terraform state pull → Download remote state terraform state push → Upload local state to remote 🔹 Module Management terraform get → Download modules terraform init -upgrade → Upgrade modules & providers terraform graph → Visualize dependency graph 🔹 Cleanup & Troubleshooting terraform fmt -recursive → Format all .tf files recursively terraform validate → Detect configuration issues early terraform apply -refresh-only → Refresh state without changing infra terraform force-unlock <LOCK_ID> → Unlock a stuck state file 🔹Useful in CI/CD Pipelines terraform plan -input=false -out=tfplan → Non-interactive plan for pipelines terraform apply -input=false tfplan → Apply pre-generated plan terraform fmt -check → Check formatting in GitHub Actions terraform validate → Validate configs automatically in CI #Terraform #DevOps #InfrastructureAsCode #CloudEngineering #Automation #AWS #CICD #IaC #CareerGrowth

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