Kubernetes Advanced
StatefulSets, DaemonSets, Jobs, CronJobs, PersistentVolumes, resource management, HPA, troubleshooting OOMKilled
1What is a StatefulSet in Kubernetes?
What is a StatefulSet in Kubernetes?
Risposta
A StatefulSet guarantees stable and predictable identity for each pod (pod-0, pod-1, etc.) along with individual persistent storage. Unlike Deployments designed for stateless applications, StatefulSets maintain pod startup and shutdown order. They are essential for distributed databases, cache systems like Redis Cluster, or applications requiring stable network identity.
2What is a DaemonSet in Kubernetes?
What is a DaemonSet in Kubernetes?
Risposta
A DaemonSet ensures that a copy of a pod runs on all (or some) nodes in the cluster. It is primarily used for system agents like log collectors (Fluentd), monitoring agents (Prometheus Node Exporter), or network plugins (CNI). Unlike Deployments that target a fixed number of replicas, DaemonSets automatically adapt to the number of nodes.
3What is a Job in Kubernetes?
What is a Job in Kubernetes?
Risposta
A Job creates one or more pods and ensures that a specified number terminate successfully. Unlike long-running controllers like Deployments, Jobs are designed for one-time tasks such as database migrations, batch processing, or maintenance scripts. Once the task completes, the pod remains available for log inspection before manual or automatic cleanup.
What is the main difference between a Job and a CronJob?
What is the difference between PersistentVolume (PV) and PersistentVolumeClaim (PVC)?
+21 domande da colloquio
Altri argomenti di colloquio DevOps
Version Control & Git
Linux Fundamentals
Shell Scripting & Bash
Networking Basics
Docker Fundamentals
CI/CD Fundamentals
GitHub Actions
GitLab CI/CD
Jenkins
Kubernetes Basics
Kubernetes Networking
Ingress & API Gateway
Terraform Basics
Terraform Advanced
Ansible & Configuration Management
AWS Essentials
Azure Fundamentals
GCP Fundamentals
Monitoring & Prometheus
Logging & ELK Stack
Alerting & Incident Response
Cloud Identity & Secrets
CI/CD Pipeline Security
Helm & Kubernetes
Runtime & Cluster Security
Container Supply Chain Security
Service Mesh & Istio
GitOps & ArgoCD
Progressive Delivery
Distributed Observability
Disaster Recovery & Backup
Performance Optimization
Cloud Cost Optimization
SRE Principles
Chaos Engineering
Platform Engineering
Padroneggia DevOps per il tuo prossimo colloquio
Accedi a tutte le domande, flashcards, test tecnici, esercizi di code review e simulatori di colloquio.
Inizia gratis