Nutanix NCP-EUC Exam With Confidence Using Practice Dumps

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

According to the Nutanix AHV Administration Guide and Cluster Expansion prerequisites for environments with non-default virtual switches:

Manual Bridge Configuration: When a cluster has multiple virtual switches (e.g., vs1, vs2) configured, these correspond to specific OVS bridges (e.g., br1, br2) on the AHV hosts. Before adding new nodes to such a cluster, the administrator must manually configure these additional bridges on the new nodes to match the existing cluster configuration.

Consistency Requirement: The documentation states that virtual bridges used for a virtual switch (VS) on all nodes must have the same specification (name, MTU, uplink bond type). If vs1 is mapped to br1 on existing nodes, it must be mapped to br1 on the new nodes before they are added to the cluster.

Expansion Failure/Warning: Failure to configure these bridges prior to expansion can result in the new nodes being unable to join the configured networks properly or the expansion process failing checks related to network uniformity.

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

According to Nutanix AHV Administration Guide regarding GPU Pass-Through:

Hardware Binding: GPU Pass-Through (DirectPath I/O) binds a virtual machine to a specific physical PCIe device on the host. Unlike vGPU (which abstracts the hardware), passthrough creates a 1:1 dependency.

HA Behavior: Nutanix AHV supports High Availability (HA) for GPU-enabled VMs in the sense that if a host fails, the system attempts to restart the VM on another host (Cold Migration). Option C ("Not HA-capable") is incorrect because the system attempts the restart; it does not simply abandon the VM by design.

Failure Cause: The restart fails (the "behavior" described) because the destination host must have the exact same GPU hardware resource available (free and matching the profile/addressing). If the other nodes in the cluster do not have a free GPU of the same type, or if they are already fully utilized, the VM cannot power on, resulting in the "Insufficient GPU resources" error.

According to the Nutanix Network Configuration and RDMA guidelines, uniformity of the physical network layer is a strict requirement for enabling RDMA over Converged Ethernet (RoCE).

Specifically, Nutanix does not support mixing network cards with different speeds within the same cluster when RDMA is involved. If the cluster contains a mix of nodes where some are connected at 10 Gbps and others at 25 Gbps (or higher), the Prism interface will disable (grey out) the RDMA configuration options to prevent an unsupported or unstable fabric configuration. To resolve this and proceed with enabling RDMA network segmentation, the administrator must ensure that all RDMA-capable NICs across all nodes are operating at the same supported speed (typically 25 Gbps or higher).