HP Virtualization & Container Technology 3 — Questions and Answers
Question 1: In a Kubernetes cluster, which controller ensures a specified number of Pod replicas are running at all times?
- DaemonSet
- StatefulSet
- ReplicaSet (Correct answer)
- Job
Correct answer: ReplicaSet
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?
- HPE iLO Live Migration
- VMware Storage vMotion with HPE DSF
- Hyper-V Live Migration with SMB Direct over HPE FlexFabric (Correct answer)
- HPE OneView Server Profile migration
Correct answer: Hyper-V Live Migration with SMB Direct over HPE FlexFabric
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?
- ARG
- ENV (Correct answer)
- LABEL
- RUN export
Correct answer: ENV
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?
- Inline deduplication and compression at the hyperconverged layer (Correct answer)
- Post-process deduplication via HPE StoreOnce Catalyst
- Thin provisioning via HPE 3PAR Virtual Volumes
- VAAI hardware offload via HPE Smart Array
Correct answer: Inline deduplication and compression at the hyperconverged layer
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?
- Evicts the Pod from the node permanently
- Restarts the container according to the Pod's restartPolicy (Correct answer)
- Marks the node as NotReady
- Scales down the Deployment by one replica
Correct answer: Restarts the container according to the Pod's restartPolicy
When a liveness probe fails, the kubelet kills and restarts the container based on the Pod's restartPolicy (default: Always).
Question 6: Which virtualization type has the lowest overhead because the guest OS runs directly on hardware with hypervisor assistance?
- Full emulation (Type 2 software)
- Paravirtualization
- Hardware-assisted virtualization (Type 1 with VT-x/AMD-V) (Correct answer)
- OS-level virtualization (containers)
Correct answer: Hardware-assisted virtualization (Type 1 with VT-x/AMD-V)
Hardware-assisted virtualization uses CPU extensions (Intel VT-x / AMD-V) to run guest code natively with minimal hypervisor intervention.
Question 7: In HPE OneView, what is a Server Profile Template used for?
- Storing iLO firmware baselines for rollback
- Defining a reusable configuration that can stamp consistent profiles onto multiple servers (Correct answer)
- Mapping logical volumes to HPE 3PAR LUNs
- Scheduling automated OS patching windows
Correct answer: Defining a reusable configuration that can stamp consistent profiles onto multiple servers
A Server Profile Template in OneView defines network, storage, and BIOS settings that can be applied consistently across many physical servers.
HP Virtualization & Container Technology 3
In a Kubernetes cluster, which controller ensures a specified number of Pod replicas are running at all times?