Pass the Nutanix NCS Professional NCS-Core Questions and answers with CertsForce

Ref: https://portal.nutanix.com/page/documents/details?targetId=System-Specs-G6-Single-Node:set-block-connect-c.html

The alert for Protection Policy PP-BCA-1HR indicating critical availability issues is most likely due to the workloads included in the policy no longer meeting their intended Recovery Point Objective (RPO). A 1-hour snapshot frequency implies a stringent RPO, which if not maintained, could result in data loss beyond acceptable business limits. This scenario typically generates a critical alert in Prism Central, especially when the snapshots required to meet the RPO are not completed as scheduled due to any number of issues such as resource constraints or network issues.References: Nutanix Prism User Guide, Nutanix Data Protection Best Practices.

Ref: https://next.nutanix.com/installation-configuration-23/product-mixing-restr ictions-37231

In a five-node cluster with storage containers configured with a replication factor of 3, the behavior of VM High Availability when two AHV host failures occur with the non-default "Guarantee mode" enabled is as follows:

Will ensure that all VMs can restart in case of two simultaneous AHV host failures: This mode prioritizes maintaining VM availability by reserving enough resources to restart VMs even with multiple host failures, as long as at least three hosts (matching the replication factor) remain functional.

References:

Nutanix Bible (https://www.nutanixbible.com ), specifically sections on VM High Availability and replication factors.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), where best practices for VM High Availability are detailed.

When a customer needs to add storage to an ESXi cluster without incurring additional hypervisor licensing costs, converting the cluster to Nutanix AHV presents a viable solution. AHV allows the incorporation of storage-only nodes, which can extend the cluster's storage capacity without necessitating additional licenses for hypervisor usage.

References:

Nutanix Solutions for ESXi to AHV Migration: Nutanix Documentation

Nutanix AHV Licensing and Features Guide: Nutanix Licensing Information

If the As-Built Tool cannot be run due to technical reasons, the next best action for the consultant is to manually create documentation using an As-Built document template. This approach ensures that documentation is still provided to the customer detailing the setup, configuration, and operational state of their environment, which is crucial for ongoing management and future audits. This method is proactive and ensures customer needs are met despite technical setbacks.References: Nutanix Technical Documentation Guidelines, Best Practices in Nutanix System Documentation.

https://next.nutanix.com/how-it-works-22/recommended-maximum-storage-utilization-3723 4

To meet the customer requirements for automatic failover and resource balancing in a vSphere environment, two specific features need to be enabled: vSphere High Availability (HA) and Distributed Resource Scheduler (DRS). vSphere HA ensures that VMs automatically restart on other hosts in the event of a host failure, providing high availability. vSphere DRS balances computing workloads with available resources in a vSphere environment, ensuring that resources are used efficiently and that new VMs are placed on hosts with the most available resources.

References:

Nutanix Bible: vSphere Integration

Nutanix University: Configuring vSphere Features

The error during LCM pre-checks in an ESXi-based Nutanix cluster with HA enabled is most likely due to the ESXi cluster admission control being enabled. Admission control is a feature in VMware ESXi that reserves resources for HA purposes to ensure that sufficient resources are available in the event of host failures. When admission control is enabled, it can interfere with Nutanix LCM operations, which may require resource reallocation or reconfiguration that conflicts with the reserved capacities set by admission control. Disabling admission control during LCM updates would typically resolve this issue.References: VMware documentation on HA and Admission Control, Nutanix LCM documentation.