Platform & DevOps Engineer Interview Prep

Crack your next
Platform or DevOps Engineer interview

500+ production-grade questions with real commands, architecture patterns, and Principal-level answers.

500+
Total questions
13
Topic guides
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All (13)
Infrastructure
Containers
Cloud
Ops
Dev
Showing 13 guides · 500+ questions
🌏
30 questions
Terraform Production
State management, remote backends, drift detection, modules, workspace isolation, and CI/CD integration for IaC at scale.
StateBackendsModulesCI/CD
Open guide Intermediate
35 questions
Kubernetes Production
Pod lifecycle, networking, storage, scheduling, security posture, HPA/VPA, cluster upgrades, and real incident diagnosis patterns.
PodsNetworkingSecurityUpgrades
Open guide Advanced
40 questions
GCP Production
IAM & Workload Identity, GKE, VPC networking, Cloud SQL, BigQuery, Binary Authorization, SCC, Cloud Build, and FinOps patterns.
IAMGKEVPCFinOps
Open guide Advanced
30 questions
AWS Production
IAM, VPC, EKS, RDS, Lambda, S3, CloudWatch, Cost Explorer, and multi-region high-availability architecture patterns.
IAMEKSVPCCost
Open guide Advanced
30 questions
Azure Production
Entra ID, AKS, VNet peering, Azure Storage, Cost Management, Defender for Cloud, Policy, and enterprise landing zone patterns.
Entra IDAKSVNetCost Mgmt
Open guide Advanced
📶
45 questions
Networking Fundamentals
OSI model, TCP/UDP internals, DNS deep dive, TLS handshake, load balancing, eBPF, mTLS, cloud VPC, and network troubleshooting.
TCP/DNSTLSeBPFVPC
Open guide Intermediate
🐧
50 questions
Linux Systems Admin
Process management, filesystem internals, kernel tuning, performance analysis, security hardening, systemd, LVM, cgroups, and namespaces.
ProcessesPerformanceSecuritysystemd
Open guide Advanced
📊
45 questions
Database Performance
Index internals, query plan analysis, PostgreSQL VACUUM & WAL, MySQL buffer pool, connection pooling, replication, and Cloud SQL tuning.
IndexingEXPLAINReplicationCloud SQL
Open guide Advanced
📦
50 questions
Container Lifecycle & Deployments
Docker internals, image optimisation, OCI runtime, deployment strategies (rolling, blue-green, canary), security, Helm, ArgoCD, and GitOps.
DockerDeploymentsHelmGitOps
Open guide Expert
🏗
50 questions
Git in Production
Object model internals, branching strategies, merge vs rebase, interactive rebase, disaster recovery, GitOps workflows, signing, and repo governance.
BranchingRecoveryGitOpsSecurity
Open guide Intermediate
🔎
30 questions
Observability & Monitoring
Metrics / logs / traces pillars, Prometheus, PromQL, Grafana, Loki, OpenTelemetry, SLOs, error budgets, burn-rate alerting, and incident response.
PrometheusGrafanaSLOsOTelAlerting
Open guide Advanced
30 questions
CI/CD Pipelines
GitHub Actions, Cloud Build, ArgoCD, Tekton, pipeline design patterns, test strategies, security scanning, and GitOps promotion flows.
GitHub ActionsArgoCDSecurityRollback
Open guide Advanced
30 questions
System Design NEW
URL shorteners, rate limiters, multi-region Kubernetes platforms, distributed caches, notification systems, CI/CD platforms, and trade-off deep dives at Principal level.
ScalabilityReliabilityTrade-offsPlatform
Open guide Expert

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Production answers
Real commands, architecture patterns, Principal-level context — not textbook definitions.
ER
Eknatha Reddy Puli — Platform Engineer

13+ years in IT  ·  7+ years cloud ops  ·  Linux · Kubernetes · Terraform · GCP · AWS · Azure