Distributed File Systems (e.g., GlusterFS, Ceph) provide high availability and data redundancy by replicating data across multiple nodes. This ensures data consistency and availability even if a pod or node fails. Local Persistent Volumes, Ephemeral Storage, and HostPath Volumes do not provide this level of data redundancy. Standard Persistent Disks offer persistence but not necessarily high availability and redundancy.

The 'replicas: 3' field in the Deployment specification indicates that Kubernetes should create and manage three Pods for this Deployment. The Deployment ensures that there are always three running Pods matching the specified labels.

Both options A and C are valid ways to access configuration data from a ConfigMap within a container Option A (Mount as a volume): You can mount the ConfigMap as a volume into the container, allowing the microservice to access the configuration file directly from the mounted directory This is useful if the configuration file is large or has complex structure. Option C (Environment variable): You can define an environment variable in the pod spec and map it to the ConfigMap data This is simpler for smaller configuration values and can be easily accessed within the microservice code- The other options are not suitable for accessing ConfigMap data within a container.

You can ensure PVCs are bound correctly by specifying the 'storageClassName' field to match the PV's storage class, using 'accessModes' to match access types, or by manually binding the PVC to a specific PV The 'capacity' field can be used to specify the storage capacity needed, but doesn't directly control the binding process.

Admission Controllers in Kubernetes can be used to enforce policies for container images. You can configure an Admission Controller to check if the image is present in an approved image registry or if it meets certain security criteria. This helps prevent unauthorized or insecure images from being deployed to your cluster.