Nutanix Updated NCS-Core Exam Questions and Answers by riyan

The failure to discover nodes during installation can often be attributed to the lack of IPv6 support on the network, especially if the Foundation process relies on IPv6 for node discovery. If IPv6 is not enabled on the customer’s switch, the discovery packets may not be properly routed, resulting in the nodes not being discovered. Enabling IPv6 on the switch could resolve this discovery issue.

References:

• Nutanix Foundation Troubleshooting Guide: Nutanix Support Portal
• Network Configuration and Troubleshooting Documentation

Ref:

For a Nutanix cluster configuration that simplifies future deployments and expansions, disabling multicast and broadcast flood optimizations (A) and using a tagged VLAN for the CVM and hypervisor hosts (C) are the best practices. Disabling these optimizations helps in reducing unnecessary network traffic and potential broadcast storms in a growing environment. Using tagged VLANs for CVM and hypervisor hosts ensures proper network segmentation and scalability, allowing for easier management and expansion without reconfiguring the native network setup for each expansion or deployment.References: Nutanix Network Configuration Best Practices, Nutanix Deployment Guide.

The optimal sequence for deploying a Nutanix AHV cluster with built-in software encryption involves the following steps:

• Create Cluster: Establish the cluster foundation, which sets up the basic network and cluster configurations.
• Install License Key: The ultimate licensing must be applied before enabling encryption because the feature depends on this license.
• Encrypt Cluster: Once the cluster is created and licensed, enable encryption to secure the data at rest. This step should be done before creating storage containers to ensure that all data written to the containers is encrypted from the outset.
• Create Storage Containers: Finally, create the storage containers. With encryption already enabled, any data written to these containers will be automatically encrypted.

References:

• Nutanix Bible (https://www.nutanixbible.com), specifically the sections on licensing and data encryption.
• Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering deployment and configuration best practices.