Platform & DevOps Engineer Interview Prep

Crack your next
Platform or DevOps Engineer interview

1000+ production-grade questions with real commands, architecture patterns, and Principal-level answers.

1000+
Total questions
20
Topic guides
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All (20)
Infrastructure
Containers
Cloud
Ops
Dev
Showing 20 guides · 1000+ questions
🌏
120 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
☷
120 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
☀
120 questions
AWS Production
IAM, VPC, EKS, RDS, Lambda, S3, CloudWatch, Cost Explorer, and multi-region high-availability architecture patterns.
IAMEKSVPCCost
Open guide Advanced
▤
120 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
📶
120 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
🐧
125 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
🏗
120 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
♻
120 questions
SRE Reliability & Incident Management NEW
SLIs/SLOs, error budgets, burn-rate alerting, on-call rotations, incident command, blameless postmortems, toil, resilience patterns, chaos engineering, and capacity planning.
SLOsError BudgetsIncidentPostmortemsResilience
Open guide Advanced
📊
60 questions
Technical / Platform PM NEW
Platform product sense, internal-platform metrics, build-vs-buy, API design, golden paths, prioritization (RICE), influence without authority, GTM/adoption, and PM behavioral.
Product SenseMetricsStrategyRICEBehavioral
Open guide Advanced
💻
150 questions
Coding & Scripting for SRE / Platform NEW
Bash strict-mode & awk, Python automation, algorithms for log-scale data, API pagination, K8s/cloud scripting, Go basics, and a live-coding walkthrough.
BashPythonAlgorithmsGoAutomation
Open guide Advanced
🔐
100 questions
DevSecOps / Cloud & Supply-Chain Security NEW
Secrets & Vault, SBOM/Sigstore/SLSA supply-chain, Kubernetes & container hardening (CKS-aligned), policy-as-code, cloud security, AppSec, and incident response.
SecretsSupply ChainK8s SecurityCloudPolicy-as-Code
Open guide Advanced
🤝
125 questions
Behavioral Interview (STAR) NEW
STAR-framework prep across incident management, leadership, communication, prioritization, and ownership — with coaching notes and worked example answers.
STARLeadershipOwnershipCommunication
Open guide All levels
🚨
120 scenarios
Production Scenarios NEW
120 real "it's broken — walk me through it" incidents across SRE, DevOps & Platform. Each is a full STAR diagnostic path: symptom → investigation → root cause → fix → prevention, with an interview tip.
TriageKubernetesCloudLinuxCapacity
Open guide Advanced
⚖
120 decisions
Staff+ Architecture & Trade-offs NEW
120 open-ended decision walkthroughs: build vs buy, multi-region, monolith vs microservices, data store choice, platform/IDP timing, tech-debt, and big bets — clarify, trade-offs, recommendation, reversibility, de-risk.
Build vs BuyTrade-offsReversibilityPlatformStaff+
Open guide Expert
⛤
90 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

  Linux · Kubernetes · Terraform · GCP · AWS · Azure · System Design · Database