Free Nutanix NCS-Core Exam Actual Questions

The questions for NCS-Core were last updated On Jan 16, 2025

Question No. 1

A customer would like to re-image an existing cluster. The Foundation Applet and Foundation VM is unavailable to them.

How can the consultant access Foundation-as-a-Service (FaaS)?

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Correct Answer: C

If a customer needs to re-image an existing cluster and both the Foundation Applet and Foundation VM are unavailable, the consultant can access Foundation-as-a-Service (FaaS) through the CVM IP address followed by port 9443, as indicated in Option C. FaaS allows for the re-imaging of Nutanix nodes through a web interface hosted directly on the CVM, making it an effective tool for deploying and managing clusters without needing additional installation media or virtual machines. Reference: Nutanix Foundation as a Service (FaaS) Documentation, Nutanix Support Portal.


Question No. 2

Which subnet should a consultant be aware is reserved for internal connectivity within a Nutanix cluster?

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Correct Answer: A

The consultant should be aware that the subnet 192.168.5.0/24 is reserved for internal connectivity within a Nutanix cluster. This subnet is typically used for the internal operations of the Nutanix cluster, including CVM backplane communications. It is critical to ensure that this subnet does not overlap with any external network configurations to avoid networking conflicts that can affect cluster operations and communications. Reference: Nutanix Networking Best Practices, Nutanix Cluster Configuration Guide.


Question No. 3

A consultant completes a new cluster installation and tries to update the firmware using LCM. The update fails with the following.

operation failed, Reason: Failed to run LCM operation, error: ReadError('not a grip file',).

Which log should the consultant view to get more info?

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Correct Answer: A

The error encountered during the LCM operation suggests a failure in reading a file, which might be linked to the foundational services of the cluster. The genesis.out log file is essential for troubleshooting issues related to cluster initialization and fundamental operations. This file logs the activities of the Genesis service, which is responsible for managing and monitoring the lifecycle of cluster services, including LCM tasks. In case of errors during LCM operations, the genesis.out log provides detailed insight into what might have gone wrong during the process, making it the appropriate log to check in this scenario.


Nutanix Bible: https://www.nutanixbible.com/

Nutanix University Videos on LCM and Genesis service: Nutanix Official YouTube Playlist

Question No. 4

An administrator is deploying an application that requires maximum I/O throughput for scratch dat

a. The administrator is concerned that the throughput requirement is greater than what can be provided by a single cluster node.

What should the administrator do to meet this requirement?

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Question No. 5

An administrator migrates a VM onto a new Nutanix cluster. After the migration, the administrator observes the following conditions:

* Cluster memory utilization: 64%

* Cluster CPU utilization: 19%

* Cluster storage utilization: 32%

* Average VM CPU utilization: 25%

* Average VM CPU ready%: 24%

* Average VM memory utilization: 60%

Which two changes should the administrator make to improve VM performance? (Choose two.)

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