Bootlab #2
Description
Interview Questions ListWhat is your total years of experience? �What about relevant experience and roles? �Are you serving notice period? �Are you holding any offer letter? �In the Ansible playbook file, inside the tasks you write modules; suppose there are 100 modules and you want to run a specific module, how can you do that? �In the Ansible playbook, if you mention a variable file path in the vars_files attribute, how do you override some of those variables at execution time? Which argument do you pass? �How does Ansible communicate from the Ansible server to remote servers? What authentication do you use (SSH key public/private)? What do you copy to remote servers? Even after copying authorized_keys, it asks for password—how do you fix passwordless authentication? �Command to create a password for a specific user on remote server? Where do you configure passwordless auth (e.g., /etc/ssh/sshd_config)? �You use Terraform; what have you done with it (e.g., creating EKS cluster)? For EKS cluster upgrade, do you use Terraform or manual CLI/UI? Reason for not using Terraform? �Terraform apply shows conflict error (TF state not in sync)—what do you do? (Mention terraform refresh, plan, etc.) �Creating two Terraform modules (VPC and EC2); how to pass VPC ID from VPC module to EC2 module? �EC2 disk usage at 90%—how to troubleshoot and fix without deleting files? Commands for du -h, etc. Is stopping server required to increase EBS volume? After attaching new volume, commands to partition, make filesystem (mkfs), and mount? �Private connection between on-prem VM and EC2 server? (VPN/Direct Connect) �SSH into private EC2 without NAT gateway (console option disabled)—how to enable? No bastion host. Then, from that private EC2, access S3 (aws s3 ls) without internet—how? (VPC endpoint types?) �Jenkins: Run stage 1 on agent1, stage 2 on agent2. Artifact from stage1 to stage2 on different agents? Using shared library? �Jenkins on EKS; after Helm chart upgrade, all jobs (50-100) disappear from UI—what's the issue? How to recover? Long-term fix as SRE? �Lost EC2 key pair (.pem)—how to recover and SSH? Can't attach new key pair post-launch. �Monitoring tools in project? (Prometheus/Grafana for infra; APM/traces?) SLI/SLO/SLA/error budget—differences? How to manage? �Docker: Container on bridge network and another on overlay—can you peer them? �Design global web app architecture: No latency for overseas, auto-alerts on service/infra issues (email/incident), reduce MTTR, manage DBs with zero downtime. Tools/services? (EKS/EC2, Route53, CloudFront, ASG, RDS multi-AZ/read replicas, etc.) Multi-region RDS sync? DR migration? �