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Pure Storage Pure Certified Portworx Enterprise Professional (PEP) Exam Sample Questions (Q27-Q32):
NEW QUESTION # 27
What is the minimum kernel needed for Portworx?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Portworx requires a minimum Linux kernel version of 3.10 or greater to operate properly. This requirement stems from Portworx's dependencies on certain kernel features and modules that became standard from kernel version 3.10 onwards. The kernel version affects support for device-mapper, overlay filesystems, network stack enhancements, and other low-level capabilities essential for Portworx's block storage functionality and performance. Although newer kernels (like 4.15+) offer additional features and improvements, Portworx maintains compatibility back to 3.10 to support a wide range of enterprise Linux distributions such as RHEL, CentOS, and Ubuntu LTS releases. The official Portworx system requirements document explicitly states kernel 3.10 as the minimum supported version to ensure stability and compatibility in production environments【Pure Storage Portworx System Requirements source】.
NEW QUESTION # 28
When upgrading Portworx on Kubernetes using the Operator, what step must the administrator take if using the px-versions configmap?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
During Portworx upgrades via the Kubernetes Operator, if the deployment uses a px-versions ConfigMap to manage available Portworx versions, the administrator must update the version manifest within this ConfigMap to include the new version. This update informs the Operator of the target version for upgrades and ensures that the correct container images are pulled and deployed. Simply creating a new namespace or deleting the ConfigMap is insufficient and can cause upgrade failures or inconsistent version deployments. The Portworx Operator upgrade documentation emphasizes updating the px-versions ConfigMap manifest as a necessary step in orchestrated upgrades, enabling controlled, predictable version management within Kubernetes clusters【Pure Storage Portworx Upgrade Guide source】.
NEW QUESTION # 29
What command allows a Portworx admin to create a cloud credential for the Object Store?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In Portworx, managing credentials for cloud object stores is vital to enable features like cloud snapshots and backups. The command pxctl credentials create is used to create and register cloud credentials with the Portworx cluster. This command allows administrators to specify provider details such as AWS, Google Cloud, or Azure, and input necessary access keys, secret keys, regions, and endpoints. Proper credential configuration enables Portworx to authenticate with external object stores securely, ensuring reliable data movement and disaster recovery operations. The CLI facilitates easy credential management, including listing, updating, and deleting credentials as needed. Official Portworx documentation highlights pxctl credentials create as the authoritative command for establishing cloud storage access, ensuring security best practices by managing credentials centrally within the Portworx control plane【Pure Storage Portworx CLI Guide source】.
NEW QUESTION # 30
How should a Portworx administrator expose metrics to externally provisioned Prometheus?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
To enable Portworx metrics exposure compatible with external Prometheus servers, administrators must set the exportMetrics flag inside the Prometheus monitoring section of the StorageCluster spec. The correct configuration is:
spec:
monitoring:
prometheus:
exportMetrics: true
This declarative configuration directs Portworx to expose its internal metrics on Prometheus endpoints, allowing external monitoring tools to scrape these metrics for observability, alerting, and dashboarding. The operator-managed Portworx cluster leverages this configuration for integration with cloud-native monitoring stacks, ensuring seamless visibility into cluster health, performance, and resource utilization. Using CLI commands alone is insufficient for operator-managed clusters since they don't persist settings or integrate with Kubernetes manifests. The official Portworx observability guide and operator documentation endorse this method as the recommended approach for metrics exposure and integration with Prometheus-compatible systems【Pure Storage Portworx Monitoring Guide source】.
NEW QUESTION # 31
What is the primary command used to back up a volume in Portworx?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The primary command to back up a volume in Portworx is pxctl volume snapshot create. This command creates a point-in-time snapshot of the specified volume, capturing its state for backup or recovery purposes. Snapshots can be local or uploaded to cloud object stores as part of disaster recovery strategies. The snapshot operation is efficient and minimally intrusive, using -on-write mechanisms to avoid full data duplication. Although other commands like pxctl volume save or pxctl backup volume might exist in other storage systems, Portworx explicitly uses pxctl volume snapshot create as its core volume backup command. The Portworx CLI documentation details this command as fundamental for data protection and snapshot lifecycle management in the cluster【Pure Storage Portworx CLI Guide source】.
NEW QUESTION # 32
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