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

For a multi-tier application where traffic must be limited to specific services and ports across web, application, and database VMs, the optimal approach is to use microsegmentation features provided by Nutanix. Option D, "Categorize the VMs in Prism Central and utilize Flow to set a security policy," is the correct choice.

Nutanix Flow allows for detailed security policies that control VM-to-VM traffic within the same cluster, effectively managing access and communication based on specified criteria like VM category, service, or application type. This solution enables precise control over traffic flows, enhancing security without requiring additional physical or virtual network segmentation.

References:Nutanix Flow capabilities are detailed in Nutanix Prism Central's documentation, which explains how to implement microsegmentation and security policies for application-specific traffic management.

To increase the Redundancy Factor (RF) from 2 to 3, at least five nodes are required for the cluster to function correctly with RF3, as each data block needs to be replicated to three different nodes. However, the optimal solution that offers both the necessary node count and sufficient storage overhead is:

Six Compute Nodes with 25% available disk space: This configuration ensures that there are enough nodes to support RF3 while maintaining adequate storage capacity for redundancy without overutilization.

References:

Nutanix Bible (https://www.nutanixbible.com ), particularly the sections on redundancy factors and node requirements.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), focusing on cluster scaling and redundancy considerations.

After an onsite cluster deployment, the As-Built Guide is a crucial document that provides detailed information about the final configuration of the system. However, certain data in the As-Built Guide might require adjustment or might be missing completely.

In this case, the Nutanix Node Port Layout (Option A) and the Physical Rack Layout (Option C) are two data that might require adjustment or might be missing completely. The Nutanix Node Port Layout provides a visual representation of the network connections for each node in the cluster, while the Physical Rack Layout provides a visual representation of the physical arrangement of the nodes in the rack. Both of these data are crucial for understanding the physical and network configuration of the cluster, and any inaccuracies or omissions in these data could lead to confusion or issues in the future.

Therefore, the consultant should ensure that the Nutanix Node Port Layout and the Physical Rack Layout in the As-Built Guide are accurate and complete.

References:

[Nutanix Support & Insights]

[Nutanix Community]

[Nutanix Documentation]

[Nutanix Certified services - core (NCS-Core) 6.8 - Nutanix University]

[Nutanix Bible]

[Nutanix Certified services - core (NCS-Core) 6.8 Playlist - YouTube]

Ref: https://portal.nutanix.com/#page/kbs/ details?targetId=kA00e000000Cr7GCAS

Ref: http://myvirtualcloud .net/nutanix-scma-the-security-feature-that-could-save-your-organization/

Ref: https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2126-SAS-on-Nutanix:BP-2126-SAS-on-Nutanix

When installing a Nutanix cluster on hardware servers pre-loaded with an existing operating system such as DiscoverOS, the best approach is to re-image the bare metal nodes. This process involves using the Nutanix Foundation tool to install the required Nutanix software (such as AOS and Hypervisor) onto the nodes, replacing any pre-existing software. This ensures that the hardware is properly configured and optimized for the Nutanix environment.References:

Nutanix University - NCS-Core 6.8 Learning Path

The Nutanix Bible, Foundation chapter (https://www.nutanixbible.com/ )

The customer's requirements for automatic failover and resource balancing in a new Hyper-V cluster can be met with the use of Failover Clustering and High Availability. Failover Clustering allows VMs to automatically failover to another host in the event of a host failure, fulfilling the requirement for resilience. High Availability ensures that VMs restart on available hardware in the cluster, maintaining service continuity and balancing CPU and memory resources across the hosts.References: Microsoft Hyper-V documentation, Nutanix Bible, and NCS-Core 6.8 course materials on virtualization platforms.

The inability of CVMs and hypervisors to communicate after moving a cluster to the production network typically points to a VLAN configuration issue. The correct action is to confirm that the VLAN designated for hypervisor/CVM communication is set as the Native VLAN on the switch ports to which the nodes are connected. This setting ensures that traffic from these VLANs is properly prioritized and handled by the network, thereby restoring communication between CVMs and hypervisors and allowing the cluster to start.References: Nutanix Bible, NCS-Core 6.8 official documentation on networking configurations, and troubleshooting VLAN issues.

If one power supply is disconnected from a NX-3235-G9 chassis, the behavior observed will be:

The hardware status updates to reflect the change in Prism Element, the hosts continues to run, and the Host hardware power status alert is sent: Modern Nutanix hardware like the NX-3235-G9 is designed with redundant power supplies to ensure that the loss of one does not impact the overall operation of the cluster. Prism Element updates the hardware status to notify administrators of the power supply issue, but there is no impact on running workloads.

References:

Nutanix Bible (https://www.nutanixbible.com ), particularly the sections on hardware management and monitoring.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), which includes information on responding to hardware alerts and maintaining cluster health.