Free Practice Questions for Nutanix NCP-EUC Exam

Comprehensive and Detailed Explanation From Exact Extract of Nutanix End User Computing documents:

According to Nutanix AHV Best Practices for Virtual Desktop Infrastructure (VDI):

Power Management: The most critical "optimal" configuration for latency-sensitive EUC workloads is to ensure the host power management policy is set to High Performance. This prevents the CPU from entering power-saving states (C-states/P-states) which can introduce latency during user interaction.

Memory Configuration: While Nutanix AHV typically disables memory overcommit by default (or does not use it in the same way as other hypervisors for VDI), the active configuration step required by an administrator to guarantee optimal performance is the Power Management setting. Memory reservation should generally be 100% (not 50%) to avoid swapping, and CPU/Memory shares are usually left at default unless there is specific contention, but Power Management is the baseline requirement for EUC optimization.

Why not D? While memory overcommit should be disabled for VDI, in many AHV versions this is the default behavior or inherent architecture. "High performance power management" represents the specific tuning parameter that administrators must validate or configure (often in the BIOS or via AHV command) to ensure the environment is "optimized" for desktop workloads.

Comprehensive and Detailed Explanation From Exact Extract of Nutanix End User Computing documents:

According to the installation guide for the Nutanix AHV Plug-in for Citrix:

Plugin Registration: The Nutanix AHV plug-in functions as a Hardware Compatibility Layer (HCL) plugin within the Citrix architecture. This allows the Citrix Provisioning (PVS) Streamed VM Setup Wizard to communicate with the AHV hypervisor.

Service Restart: After installing the plug-in on the PVS Console machine (or the DDC where the wizard is being run), the administrator must restart the specific Citrix services that load these HCL plugins. The Citrix Remote HCL Server service (often associated with the proxying of hypervisor calls in PVS/DDC environments) must be restarted to register the new Nutanix connection type.

Resolution: Without restarting this service, the PVS wizard cannot enumerate the Nutanix AHV connection or resources, rendering the integration unusable until the service reload picks up the new plugin dlls.

Nutanix Files VDI Sync is a feature originally designed for active-active use cases where users might access data from either site, requiring bidirectional metadata scanning and locking. This process is resource-intensive.

For a Disaster Recovery (DR) purpose where the secondary site is passive (users only access it if the primary fails), full active-active bidirectional synchronization is unnecessary and wasteful. To reduce the high CPU and RAM utilization caused by the constant metadata comparison between sites, the administrator should configure one-way synchronization (or leverage standard Async DR protection). This ensures data replicates to the DR site without the overhead of checking the DR site for changes to replicate back to the source.

This error is a known issue related to the Nutanix AHV Plugin for Citrix (MCS plugin) when interacting with a Nutanix cluster that has a high number of snapshots (as indicated by the 4797 count).

Older versions of the plugin utilized a JSON serializer with a default character limit (maxJsonLength). When the plugin attempts to fetch the inventory of snapshots (GetContent) to present them in the Citrix Studio wizard, the resulting JSON string exceeds this limit, causing the serialization exception and failing the catalog creation process.

The resolution, documented in Nutanix/Citrix Knowledge Base articles, is to upgrade the Nutanix AHV Plugin for Citrix to the latest version. Newer versions of the plugin handle large datasets more efficiently (often through pagination or increased limits), allowing the inventory to load successfully despite the large number of existing snapshots.

Writable AppVolumes are a feature of VMware App Volumes that provides users with a dedicated virtual disk for storing user profile data and user-installed applications1. Writable AppVolumes are stored as VMDK files on a datastore2.

To protect Writable AppVolumes during a disaster in a Nutanix environment, one possible solution is to use asynchronous DR between two sites. Asynchronous DR allows you to replicate VMs and their associated data from one site to another at regular intervals using protection domains and remote sites3.

https://www.nutanix.com/blog/vmware-app-volumes-on-nutanix

For Virtual Machine operations involving vGPUs (NVIDIA GRID) on Nutanix AHV, it is a strict requirement that all GPU nodes must run the same version of the host driver.

To support VM mobility, live migration, and High Availability (HA) within the cluster, the source and destination hosts must have compatible GPU profiles and identical driver versions. If drivers are mismatched between nodes, the GPU state cannot be successfully transferred or re-initialized, preventing migration and potentially causing VM power-on failures. While a cluster can contain a subset of nodes with GPUs (heterogeneous cluster), the nodes that do have GPUs must be uniform in their driver configuration.

administrator can take to resolve the issue of performance for several full clone virtual desktops within Cluster01 by migrating them to Cluster02. 

a recovery plan is a set of steps that defines how to recover guest VMs from a disaster. A recovery plan can be used to migrate VMs between Nutanix clusters at the same or different availability zones1.

Comprehensive and Detailed Explanation From Exact Extract of Nutanix End User Computing documents:

According to the Nutanix Life Cycle Manager (LCM) guide and NVIDIA GRID Host Driver for AHV Installation Guide:

Centralized Efficiency: The most efficient method to upgrade Nutanix clusters, including those with specialized hardware like NVIDIA GPUs, is through Prism Central (PC). Prism Central acts as the unified control plane, allowing administrators to upload the LCM bundles (including NVIDIA drivers) once and apply them across registered clusters.

LCM Workflow: The administrator should log in to Prism Central, navigate to the LCM (Life Cycle Manager) page, and use the Direct Upload feature to upload the NVIDIA GRID driver tar.gz bundle. LCM then automatically handles the inventory, pre-checks, host maintenance mode, and driver installation across the nodes in the cluster.

Why not "install_host_package" (Option D)? While the install_host_package command (CLI) is a valid method for manual installation, it is considered a legacy or fallback procedure ("manual method"). It requires logging into each CVM, running commands, and manually managing host restarts, which is far less efficient than the automated orchestration provided by LCM in Prism Central.

Why not Prism Element (Option B)? While you can perform LCM updates via Prism Element (PE) for a single cluster, Prism Central is the preferred interface for "efficient" management of the environment, especially if it scales or involves multiple clusters, and is the standard direction for all Nutanix management tasks.

There are two types of Launchpads that exist in Frame: Application Launchpad and Desktop Launchpad2.

An Application Launchpad is a representation of the applications that are available for streaming. Users can launch any application they have access to from this Launchpad. An example of an Application Launchpad is shown below:

A Desktop Launchpad is a representation of the desktops that are available for streaming. Users can launch any desktop they have access to from this Launchpad. An example of a Desktop Launchpad is shown below:

https://www.nutanix.com/blog/work-from-home-anywhere-in-five-easy-steps