NCS-Core Exam Dumps - Nutanix Certified Services Core Infrastructure Professional (NCS-Core 6.8)

To verify that a Nutanix cluster can tolerate a single-node failure, the consultant should use the command nutanix@cvm~$ ncli cluster get-domain-fault-tolerance-status type=node. This command is executed from the Controller Virtual Machine (CVM) and checks the cluster's fault tolerance status specifically for node failures, providing insights into how the cluster's data resiliency and redundancy configurations are holding up against potential single-node failures.References: Nutanix CLI Guide, Nutanix Fault Tolerance Documentation.

In the As-Built Guide for an AHV cluster deployment with each node configured with four NICs, the consultant should manually update:

• A. Node Port Layout Diagram: To reflect the physical connectivity and usage of each NIC on the nodes.
• B. Network Cabling Diagram: To accurately document how each node is connected to the network infrastructure, ensuring clarity on physical network setup.

References:

• Nutanix Bible (https://www.nutanixbible.com), where documentation standards and diagrams are emphasized.
• Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering the importance of accurate network and port documentation in deployment guides.

If a consultant is unable to ping the CVM from the hypervisor using the external interface in a network without VLAN tagging, and both are using the same subnet, the issue might be related to an incorrect default gateway configuration. The default gateway must be correctly set to ensure proper routing of packets between the CVM and the hypervisor. An incorrect gateway can prevent successful communication even if both devices are on the same subnet.References:

• Nutanix University - NCS-Core 6.8 Learning Path
• The Nutanix Bible, Networking chapter (https://www.nutanixbible.com/)

If the administrator observes that the snapshot intervals have changed from the initially configured 5-minute intervals to 15-minute intervals, it indicates a potential issue with the setup. Option C, "Fix a connectivity issue because the protection domain reverted to Async," addresses the likely cause—a connectivity problem that caused the system to revert to longer, asynchronous DR snapshot intervals.

NearSync typically allows for very frequent snapshots, but if there is a connectivity or configuration issue, it might fall back to less frequent asynchronous DR settings. Identifying and resolving any connectivity issues would allow the NearSync configuration to operate as initially intended.

References:The mechanics of NearSync and its behavior under connectivity issues are discussed in detail in Nutanix's documentation and troubleshooting guides, which describe how the system handles fallback scenarios and how to rectify them.

After deploying a Nutanix cluster with AOS and ESXi managed by a vCenter server, the consultant should ensure that both CVM eth0 and eth2 interfaces are connected to the assigned portgroups on the standard or distributed switch. This setup allows for network segmentation and proper traffic isolation, which is crucial for maintaining network security and efficiency in a virtualized environment.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

Ref: https://kb.vmware.com/s/article/1009465

Ref: https://portal.nutanix.com/page/documents/kbs/details?targetId=kA032000000TT8DCAW

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.