HP Virtualization & Container Technology 3

Question 1

In a Kubernetes cluster, which controller ensures a specified number of Pod replicas are running at all times?

Accepted Answer

ReplicaSet

Answer

A ReplicaSet continuously monitors the cluster and creates or deletes Pods to match the desired replica count.

Question 2

What HPE technology enables live migration of VMs between ProLiant servers without shared storage?

Accepted Answer

Hyper-V Live Migration with SMB Direct over HPE FlexFabric

Answer

Hyper-V Live Migration over SMB Direct leverages HPE FlexFabric RDMA-capable NICs to migrate VMs without SAN shared storage.

Question 3

Which Dockerfile instruction sets environment variables that persist into the running container?

Accepted Answer

ENV

Answer

ENV sets environment variables baked into the image that are available to the running container at all times.

Question 4

HPE SimpliVity uses which data efficiency technology to reduce storage consumption of VM snapshots?

Accepted Answer

Inline deduplication and compression at the hyperconverged layer

Answer

HPE SimpliVity performs always-on inline deduplication and compression at the hyperconverged layer, reducing snapshot storage dramatically.

Question 5

A Kubernetes Liveness probe fails repeatedly on a container. What action does the kubelet take?

Accepted Answer

Restarts the container according to the Pod's restartPolicy

Answer

When a liveness probe fails, the kubelet kills and restarts the container based on the Pod's restartPolicy (default: Always).

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