DevOps Engineer Path
Go beyond the basics — container orchestration, infrastructure as code, advanced CI/CD pipelines, and production-grade monitoring.
Jun 20, 2026
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Aws
53 articles
Jenkins interview questions and answers and Answers - Part 01
15 real-world Jenkins scenario-based interview questions and answers covering architecture, pipelines, shared libraries, agents, security, …
Apr 16, 2026
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ALB & NLB Interview Questions & Answers
65+ AWS Application Load Balancer and Network Load Balancer interview questions covering routing, health checks, SSL, security, monitoring, …
Apr 9, 2026
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12.16 Sets in DevOps
Five places sets are the natural fit in infrastructure code -- deduplicating IP addresses from logs, comparing installed vs. required …
Jan 20, 2026
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11.12 Tuples in DevOps
Reading and writing tuples via plain text and CSV, plus five real infrastructure patterns where tuples are the right fit specifically …
Jan 20, 2026
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10.15 Lists in DevOps
Lists as the natural in-memory shape of file and log contents, plus real infrastructure patterns -- server inventories, filtering Amazon EC2 …
Jan 20, 2026
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9.12 Strings in DevOps and AWS
The standard raw-text-to-structured-fields pipeline applied to real infrastructure text -- Apache/Nginx/syslog parsing, Amazon Resource …
Jan 20, 2026
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Bash + AWS CLI
Scripting AWS operations with the AWS CLI and jq — EC2 automation, S3 sync, tagging audits, and safe patterns for infrastructure scripts.
Jan 20, 2026
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Terraform Interview Questions & Answers (2026) Part 02
45+ Terraform interview questions and answers covering state management, modules, lifecycle, drift detection, and advanced scenarios — Basic …
Apr 26, 2025
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Terraform Interview Questions & Answers (2026) Part 01
50+ Terraform interview questions and answers covering state management, modules, lifecycle, drift detection, and advanced scenarios — Basic …
Apr 26, 2025
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AWS Cloud Foundations — Fresher Learning Path
A complete zero-to-cloud roadmap for beginners. Step-by-step AWS architecture diagrams with clickable blocks — click any service to see …
Jan 20, 2025
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AWS Cloud Engineer Learning Path
A complete beginner-to-job-ready roadmap for becoming an AWS Cloud Engineer. Covers core services, architecture, security, and the Solutions …
Jan 20, 2025
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Design a Backup Strategy for a 10TB RDS PostgreSQL With 4-Hour RPO and 2-Hour RTO
Design a multi-layer backup strategy for a critical 10TB RDS PostgreSQL database including automated backups, cross-region snapshots, …
Jan 20, 2025
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Application Latency Spiked After Migrating EC2 to ECS Fargate
Your application's p99 latency increased 3× after moving from EC2 to ECS Fargate. Diagnose the root cause — cold starts, DNS delays, missing …
Jan 20, 2025
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Single AZ Failure Took Down Black Friday — Root Cause & Fix
Your e-commerce application crashed during Black Friday because a single Availability Zone failed. Walk through what went wrong, the …
Jan 20, 2025
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Production RDS Ran Out of Storage at 3 AM — Incident Response and RCA
Walk through the full incident response when an RDS PostgreSQL instance runs out of storage, including immediate recovery, 5-why root cause …
Jan 20, 2025
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Generic boto3 Pagination Utility — Handle All Paginated AWS APIs
Python utility function that handles pagination for any boto3 API call generically, with automatic NextToken handling, filtering support, …
Jan 20, 2025
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Migrate from ECS Fargate to EKS With Zero Downtime
Walk through a phased migration strategy from ECS Fargate to Amazon EKS using the Strangler Fig pattern, Route53 weighted routing, and …
Jan 20, 2025
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Implement AWS Control Tower for a 20-Account Organization
Set up AWS Control Tower with Account Factory, custom guardrails via SCPs, account vending automation with AFT, and developer self-service …
Jan 20, 2025
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Handling Terraform State Drift in Production
AWS resources changed outside of Terraform — via Console, CLI, or another tool. Detect the drift, reconcile state, and prevent it from …
Jan 20, 2025
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EC2 Instance Communicating with Malicious IP — Incident Response
Your VPC flow logs show an EC2 instance sending traffic to a known malicious IP address. Walk through containment, forensic investigation, …
Jan 20, 2025
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Terraform Plan Takes 45 Minutes — How to Fix It at Scale
Your team has 500+ Terraform resources and every plan takes 45 minutes, blocking deployments. Diagnose the root cause and implement state …
Jan 20, 2025
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Migrate a Java Monolith From On-Premises to AWS With Minimal Downtime
Plan and execute a phased migration of a Java on-premises monolith to AWS using re-platform strategy, AWS DMS for database migration, and a …
Jan 20, 2025
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Lambda Function Timing Out Processing Kinesis Stream Records
Debug intermittent Lambda timeouts on a Kinesis stream consumer. Investigate iterator age, cold starts, poison pill records, and implement …
Jan 20, 2025
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EKS Pods Getting OOMKilled in Production — Diagnose and Fix
Your EKS pods are being OOMKilled frequently. Walk through diagnosing memory limits, finding leaks, using VPA recommendations, and …
Jan 20, 2025
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DynamoDB Hot Partition During a Flash Sale — Diagnose and Fix
Your DynamoDB table is experiencing hot partition issues during peak traffic. Debug using CloudWatch metrics, implement write sharding, DAX …
Jan 20, 2025
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Developer Pushed AWS Credentials to Public GitHub — Incident Response
A developer accidentally committed live AWS access keys to a public GitHub repository. Walk through the immediate containment, …
Jan 20, 2025
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Design an Observability Stack for 50+ Microservices on EKS
Build a production observability platform using OpenTelemetry, Prometheus, Grafana, Loki, and Tempo to cover metrics, logs, and traces for a …
Jan 20, 2025
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Design an IAM Strategy for a 500-Engineer Organization With SOC2 & PCI-DSS Compliance
Build an enterprise IAM framework covering multi-account structure, SSO federation, permission boundaries, break-glass access, and SCPs for …
Jan 20, 2025
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Design a PCI-DSS Compliant VPC for a Multi-Tier Application
Design a VPC architecture with isolated PCI cardholder data environment (CDE), network segmentation using NACLs and Security Groups, WAF, …
Jan 20, 2025
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Design a Multi-Region AWS Architecture for 99.99% Uptime
Your company's e-commerce app runs in a single AWS region. The business demands 99.99% uptime with RTO of 15 minutes and RPO of 5 minutes. …
Jan 20, 2025
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Design a Backup Strategy for a 10TB RDS PostgreSQL With 4-Hour RPO and 2-Hour RTO
Design a multi-layer backup strategy for a critical 10TB RDS PostgreSQL database including automated backups, cross-region snapshots, …
Jan 20, 2025
Read more
Application Latency Spiked After Migrating EC2 to ECS Fargate
Your application's p99 latency increased 3× after moving from EC2 to ECS Fargate. Diagnose the root cause — cold starts, DNS delays, missing …
Jan 20, 2025
Read more
Production RDS Ran Out of Storage at 3 AM — Incident Response and RCA
Walk through the full incident response when an RDS PostgreSQL instance runs out of storage, including immediate recovery, 5-why root cause …
Jan 20, 2025
Read more
Migrate from ECS Fargate to EKS With Zero Downtime
Walk through a phased migration strategy from ECS Fargate to Amazon EKS using the Strangler Fig pattern, Route53 weighted routing, and …
Jan 20, 2025
Read more
Implement AWS Control Tower for a 20-Account Organization
Set up AWS Control Tower with Account Factory, custom guardrails via SCPs, account vending automation with AFT, and developer self-service …
Jan 20, 2025
Read more
Handling Terraform State Drift in Production
AWS resources changed outside of Terraform — via Console, CLI, or another tool. Detect the drift, reconcile state, and prevent it from …
Jan 20, 2025
Read more
Build a Zero-Downtime Deployment Pipeline for Microservices on EKS
Design a complete CI/CD pipeline for a microservices application on EKS with canary deployments, automated rollbacks, and zero downtime.
Jan 20, 2025
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Terraform Plan Takes 45 Minutes — How to Fix It at Scale
Your team has 500+ Terraform resources and every plan takes 45 minutes, blocking deployments. Diagnose the root cause and implement state …
Jan 20, 2025
Read more
EKS Pods Getting OOMKilled in Production — Diagnose and Fix
Your EKS pods are being OOMKilled frequently. Walk through diagnosing memory limits, finding leaks, using VPA recommendations, and …
Jan 20, 2025
Read more
DynamoDB Hot Partition During a Flash Sale — Diagnose and Fix
Your DynamoDB table is experiencing hot partition issues during peak traffic. Debug using CloudWatch metrics, implement write sharding, DAX …
Jan 20, 2025
Read more
Design an Observability Stack for 50+ Microservices on EKS
Build a production observability platform using OpenTelemetry, Prometheus, Grafana, Loki, and Tempo to cover metrics, logs, and traces for a …
Jan 20, 2025
Read more
Design an IAM Strategy for a 500-Engineer Organization With SOC2 & PCI-DSS Compliance
Build an enterprise IAM framework covering multi-account structure, SSO federation, permission boundaries, break-glass access, and SCPs for …
Jan 20, 2025
Read more
Design a PCI-DSS Compliant VPC for a Multi-Tier Application
Design a VPC architecture with isolated PCI cardholder data environment (CDE), network segmentation using NACLs and Security Groups, WAF, …
Jan 20, 2025
Read more
Build a Zero-Downtime Deployment Pipeline for Microservices on EKS
Design a complete CI/CD pipeline for a microservices application on EKS with canary deployments, automated rollbacks, and zero downtime.
Jan 20, 2025
Read more
AWS Bill Jumped 40% Last Month — Investigate and Reduce Costs
Walk through a systematic cost investigation using Cost Explorer, Compute Optimizer, and Trusted Advisor. Implement savings via rightsizing, …
Jan 20, 2025
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Auto Stop/Start EC2 Instances Using Schedule Tags with Python
Write a Python boto3 script that reads the AutoStop=true tag on EC2 instances and automatically stops them at 8 PM and starts them at 8 AM — …
Jan 20, 2025
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AWS Security Interview Questions and Answers
aws security interview questions and answers
Jan 1, 0001
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AWS Interview Questions & Answers
AWS interview questions and answers covering EC2, S3, IAM, VPC, ALB, RDS, Lambda, EBS, EKS, and more - Basic to Advanced.
Jan 1, 0001
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Kubernetes Interview Questions & Answers - Fundamentals
Core Kubernetes fundamentals - clusters, control plane components (kube-apiserver, etcd, scheduler, controller-manager, admission control), …
Jan 1, 0001
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Python for AWS & DevOps - Interview Questions & Answers
30+ Python interview questions for AWS and DevOps roles - boto3, Lambda, S3, automation scripting, CI/CD, Docker SDK, Kubernetes client, …
Jan 1, 0001
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EC2 Interview Questions Part 02
50+ curated AWS EC2 interview questions with detailed answers — covering instance types, Auto Scaling, load balancers, storage, networking, …
Jan 1, 0001
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EC2 Interview Questions and Answers
Curated AWS EC2 interview questions with detailed answers — covering instance types, Auto Scaling, load balancers, storage, networking, and …
Jan 1, 0001
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