NCS Professional NCS-Core Updated Exam

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If a VM deployed on the storage network cannot access a SMB standard share, the likely issue is that:

• Clients on the same subnet as the storage network cannot access the shares: This scenario typically occurs due to network segmentation policies or firewall rules that restrict access to the storage network from clients within the same subnet, intended to segregate traffic types for security and performance reasons.

References:

• Nutanix Bible (https://www.nutanixbible.com), specifically sections on network segmentation and Nutanix Files configurations.
• Nutanix Technical Documentation on Nutanix Files, which covers network configuration and troubleshooting issues related to file access.

Given the reported RX errors on eth2 and the intermittent ping loss as observed from the CVM logs, the best initial troubleshooting step that avoids VM disruption is to inspect the switch port for errors. Option C, "Check the port on the switch side for any errors," is the most direct and non-invasive approach to determining if the issue lies with the network infrastructure rather than the server hardware itself or the configuration.

This action helps identify whether the problem is related to the physical connection (e.g., port issues, switch configuration errors) without altering the current active network setup on the Nutanix node. If errors are found on the switch port, adjustments or repairs can be made accordingly, potentially resolving the RX errors without impacting the running VMs.

References:This recommendation follows Nutanix's best practices for network troubleshooting, focusing first on external network components before altering host configurations.

In the deployment of a two-node cluster at a remote branch office, the presence of a Witness VM is essential to manage the cluster quorum and data integrity in case one of the nodes fails or becomes unreachable. The Witness VM acts as an external arbitrator that helps prevent data unavailability and split-brain scenarios in a situation where the cluster nodes cannot communicate with each other. This configuration is necessary because with only two nodes, there isn't a third node to maintain quorum natively.References: Nutanix Bible, Nutanix University