Storage

CKA · 30 questions

• A city platform team wants SSD-backed volumes for municipal databases created automatically via CSI. What must their StorageClass define to enable that dynamic path?
• A county PVC sets storageClassName: fast and stays unbound until a matching volume appears. What normally causes the PersistentVolume to be created automatically?
• Library operators omit storageClassName on some PVCs and still receive dynamically provisioned volumes. What cluster setting explains that behavior?
• Transit wants a new storage tier with different disk type and IOPS. Where should those backend flavor settings be expressed for newly provisioned volumes?
• A school district wants to stop surprise dynamic volumes from expensive default storage. Which admin control directly addresses that risk?
• A public-health PVC remains Pending and events indicate the named StorageClass cannot provision. What is the most likely cause among these options?
• Building-permits admins debate pre-creating PersistentVolumes versus letting a StorageClass mint them. Which statement correctly contrasts the workflows?
• An open-data team uses cloud disks that must land in the same zone as the scheduled Pod. Which StorageClass volumeBindingMode delays binding until a consumer Pod is scheduled?
• Municipal GIS needs to grow an existing PVC’s capacity without recreating the volume. What StorageClass setting must be enabled (with CSI support) for that expansion?
• Sanitation platform engineers want a catalog of storage tiers available to application teams. Which objects should they list?
• A city database PVC uses access mode ReadWriteOnce. Two application Pods on different nodes both try to mount it read-write. What should the admin expect?
• County web replicas on many nodes must all mount the same shared content read-write. Which access mode matches that requirement when the backend supports it?
• A library publishes static content that many reader Pods on different nodes should mount without write access. Which access mode fits?
• Transit sets a PV reclaimPolicy of Delete for dynamically provisioned disks. What happens when the bound PVC is deleted?
• A school district needs disk contents preserved after a PVC is deleted so staff can recover data manually. Which reclaim policy should the PV use?
• Public-health workloads need scratch space that disappears when the Pod is removed and must not outlive that Pod. Which volume type fits?
• Building-permits considers hostPath for a privileged node agent. What caveat should guide that decision?
• An open-data PVC requests an access mode the provisioner cannot offer, and binding fails. What rule explains the failure?
• Municipal backup volumes hold irreplaceable archives. Admins fear an accidental PVC deletion. Which reclaim policy best reduces automatic wipe risk?
• A 911 media store confuses volume sharing rules with disk performance tiers. How should the admin separate those concepts?
• A city PVC must bind to an existing PV. Which combination of PVC requirements must match the PV for binding to succeed?
• A county app pod mounts a PersistentVolumeClaim as a volume. What must be true before that pod can become Ready using the claim?
• A library StorageClass has allowVolumeExpansion enabled. How does an administrator expand a Bound PVC’s capacity?
• A transit PVC stays Pending. No matching static PV exists and no dynamic provisioner is available for its StorageClass. What is the most accurate diagnosis?
• A school-district operator deletes a PVC while pods still mount it. What should the administrator understand about release behavior?
• A public-health team has an existing NFS export and wants static provisioning. What is the correct workflow?
• A building-permits namespace must not over-request PVC storage. Which Kubernetes control caps total PVC storage requests in that namespace?
• An open-data team has one ReadWriteOnce PersistentVolume. What happens if two PVCs try to bind that same PV at once?
• A municipal SRE’s PV uses reclaimPolicy Retain after its PVC is deleted. What must happen before that volume can be safely reused?
• A sanitation application needs a raw block device rather than a mounted filesystem. Which PVC setting presents the volume as a block device to the pod?