Flashcards · IT & Cloud
CKA Flashcards
Free flashcards for CKA: flip each card to reveal the definition. Built from the CKA glossary as a study aid, these are concept checks, not real exam questions.
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- Pod
- The smallest deployable unit; one or more containers sharing a network and storage.
- Node
- A worker machine that runs pods.
- Control plane
- The components that manage the cluster (API server, scheduler, controller manager, etcd).
- etcd
- The key-value store holding all cluster state; backed up and restored in the exam.
- Deployment
- Manages a replicated set of pods and rolling updates.
- ReplicaSet
- Keeps a stable number of pod replicas running.
- Service
- A stable network endpoint for a set of pods.
- Ingress
- Routes external HTTP/S traffic to services.
- ConfigMap
- Non-secret configuration injected into pods.
- Secret
- Sensitive data (passwords, tokens) injected into pods.
- PersistentVolume (PV)
- Cluster storage provisioned for use by pods.
- PersistentVolumeClaim (PVC)
- A pod's request for storage.
- StorageClass
- Defines how storage is dynamically provisioned.
- NetworkPolicy
- Rules controlling traffic between pods.
- RBAC
- Role-Based Access Control: Roles and RoleBindings granting permissions.
- kubeadm
- Tool to bootstrap and manage a cluster.
- kubectl
- The command-line tool to operate the cluster.
- Namespace
- A virtual cluster used to scope resources.
- Taint / Toleration
- Mechanisms controlling which pods schedule onto which nodes.
- CoreDNS
- The cluster's DNS for service discovery.