[Q38-Q53] Use the best ways of preparing for NCS-Core Exam Dumps with VCEPrep Nutanix NCS-Core PDF Dumps [2025]

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Use the best ways of preparing for NCS-Core Exam Dumps with VCEPrep Nutanix NCS-Core dump PDF [2025]

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Q38. A customer has a primary datacenter with 12 Nutanix blocks distributed across three racks. The customer wants to achieve the most resiliency possible. They also have a datacenter in a branch office that is 400 kilometers away from the primary datacenter.
Which two solutions should be used? (Choose two.)

Time Stream to a remote site

Async DR to a remote site

Rack awareness

Block awareness

For a customer with 12 Nutanix blocks distributed across three racks and an additional datacenter 400 kilometers away, achieving the highest level of resiliency involves ensuring both local and remote data protection.
Option B, “Async DR to a remote site,” is essential for protecting against site failures by asynchronously replicating data to a branch office. This method is suitable for long-distance replication where latency and bandwidth are concerns.
Option C, “Rack awareness,” is crucial in a multi-rack setup to ensure that data is distributed in such a way that a failure of a single rack does not lead to data loss or significant downtime. Rack awareness configures the placement of data replicas across different racks, improving fault tolerance within the primary datacenter.
References:Nutanix documentation on disaster recovery and data resilience strategies, such as those found in the Nutanix Bible and official Nutanix training materials, supports these recommendations, emphasizing the importance of both remote site replication and local redundancy configurations.

Q39. During a technical call with a customer, it is identified that this installation will be software only on Dell servers. The out-of-band management interfaces will not be given IP addresses until the consultant is onsite.
Which Foundation method should be used for this type of installation?

Bare metal using iDRAC MAC addresses.

Bare metal using LAN MAC addresses.

Bare metal using block serial numbers.

Bare metal using node serial numbers.

In scenarios where a software-only installation is planned on Dell servers without pre-configured IP addresses for out-of-band management interfaces, the iDRAC MAC addresses are crucial. Using iDRAC (Integrated Dell Remote Access Controller), a consultant can perform a bare metal installation remotely and manage the servers effectively. This method is preferable when IP addresses are not initially available, allowing the consultant to utilize the out-of-band management network for setup. References: Nutanix Installation and Configuration guides, especially those pertaining to Dell hardware, available through the Nutanix Bible and official Nutanix training materials.

Q40. A consultant is running the Foundation VM using desktop virtualization software. No nodes are discovered.
What should the consultant verify first?

NAT

Host-only Adapter

Bridged Adapter

Internal Network

When using the Foundation VM in a desktop virtualization environment and nodes are not being discovered, the first setting that the consultant should verify is the network adapter configuration, specifically ensuring it is set to a Bridged Adapter. This setting allows the virtual machine hosting the Foundation VM to connect directly to the physical network, making other network nodes visible and reachable during the discovery process. This direct network connection is critical for the Foundation tool to function correctly and discover other nodes.References: Nutanix Bible, Nutanix University

Q41. A consultant is conducting a vSphere cluster deployment. As a part of operational tests, a vMotion operation is performed on a test VM, but fails with following error message:
The VMotion failed because the ESX hosts were not able to connect over the VMotion network. Please check your VMotion network settings and physical network configuration.
VMotion [184329483:1276605211167987] failed to create connection with remote host <10.10.16.14>: The ESX hosts failed to connect over the VMotion network Migration [184329483:1276605211167987] failed to connect to remote host <10.10.16.14>: Timeout What issue could prevent the vMotion operation from completing successfully?

The vmknic is configured with a conflicting IP address.

NIOC is enabled and vMotion traffic is configured with Share value SO.

Foundation service prevents connectivity between the source and the destination TCP port 8000.

The vSS is configured with Route based on originating virtual port.

The failure of the vMotion operation indicated by the error message could most plausibly be caused by: A.
The vmknic (VMkernel network interface card) configured with a conflicting IP address. This conflict can prevent the ESXi hosts from establishing a connection over the VMotion network, as each host must have a unique IP address on the VMotion network to facilitate proper migration communications. Option B, involving NIOC settings, and option D, involving vSS configuration, could influence performance but are less likely to cause a complete failure to connect. Option C, related to the Foundation service, is not relevant to vMotion networking issues directly. References: VMware vSphere Networking Documentation, Nutanix Integration with VMware Environments.

Q42. An administrator receives an alert in Prism indicating that interface eth2, on an AHV host is receiving many CRC errors. After togging into the problematic host, the following command is run to show the indicated output:

What is causing this issue?

Incorrect link speeds on the switch

The interface is incorrectly configured with Jumbo Frames

A misconfigured bond

A physical layer network problem

Ref:
rx_crc_errors are caused either by faults in layer 1 (in the past, we have seen failed twinax cables and incorrect types of fibre being used), or issues with jumbo frames on the network. In an environment with 10 Gig switches that use cut-through forwarding (Cisco Nexus, Arista, Cisco devices using IOS default to Store and Forward switching), any packets that come into the switch will get forwarded out the destination interface once the switch has read the destination MAC address. If that packet has an MTU over what is configured on the interface, it will cut off the packet at the designated MTU, causing the server to receive a malformed packet, which will throw a CRC error.
If you have a layer 1 issue, you will see rx_crc_errors, not on all but one or two nodes.

Q43. Refer to the exhibit.

An administrator configures ActiveDirectory authentication as shown in the exhibit. Upon finishing setup, users are not able to log in.
What configuration change should be made to fix this issue?

Change leaps to https

Change the Directory URL to use an IP rather than a name

Changethe plct from 389 to 636
D Change the Domain to use an IP rather than a name

Explanation
Ref:https://portal.nutanix.com/page/documents/details?targetId=Prism-Central-Guide-Prism-v510:mul-security-a

Q44. A customer already has a Prism Central (PC) instance deployed in their environment and expects the consultant to unregister the old cluster before registering the new cluster What steps should the consultant take to safely and successfully unregister the customer’s former cluster from PC?

Login to any CVM using SSH and use the multicluster command found within NCLi, followed by the unregistration_cleanup.py script on PE and PC.

Login to any PCVM using SSH and run the PE_unreglster.py script located in the Nutanix scripts directory, followed by the unregistratlon_cleanup.py script

Login to the PC Web Ul, navigate to Cluster Registrations found under settings in the Admin Center, check the box next to the desired PE. and click Remove

To safely and successfully unregister the customer’s former cluster from Prism Central (PC), the consultant should take the following steps as outlined in option D:
* Login to the Prism Central Web UI, which provides a user-friendly interface for managing multiple clusters.
* Navigate to the “Cluster Registrations” section found under the “Settings” in the “Admin Center” of the Prism Central interface.
* Check the box next to the desired Prism Element (PE) cluster that needs to be unregistered.
* Click the “Remove” button to unregister the cluster.
This method allows the consultant to cleanly and directly manage the cluster registration without needing to interact with command-line tools or scripts, making it a straightforward process that minimizes the risk of errors and ensures that the operation can be tracked and audited through the UI.
References: Nutanix Prism Central Guide, Nutanix Administration Documentation.

Q45. An administrator has two clusters: Site A and Site B.
Async DR is configured between the clusters as follows:
* Site A is the Primary Site
* Site B is the Secondary inactive Site, no VMs running
* Site A is fully in Production
* Site B used as Backup/Disaster Recovery
The customer wants to perform a planned failover between the sites.
How should the administrator accomplish this?

Click Activate on the Secondary site within the Data Protection Dashboard

Click Activate on the Secondary site and run deactive NCLI command on Primary site

Choose Migrate on the Secondary site within the Data Protection Dashboard

Choose Migrate on the Primary site within the Data Protection Dashboard

Ref: https://portal.nutanix.com/page/documents/details?targetId=Web-Console-Guide-Prism-v510:wc- protection-domain-failover-wc-t.html

Q46. A customer with a four-node RF2 cluster is adding application VMs to their system. After adding these VMs, the Prism dashboard shows 81% storage utilization.
What is the consequence of running the cluster at 81% storage utilization?

The customer has the ability to add more VMs up to the 100% storage utilization.

There is available capacity in the storage fabric and the cluster is resilient.

Node failure is imminent due to storage utilization.

The cluster is not resilient in the storage fabric

https://next.nutanix.com/how-it-works-22/recommended-maximum-storage-utilization-37234

Q47. An administrator needs to configure snapshots for DRscenarios. The databases get refreshed on Friday nights regularly. The search service application re-indexes the new application on Saturday nights regularly. The remaining front-end and middle tier VMs are static but do get minor version updates weekly.
The administrator needs to have 2 weeks of daily snapshots for all the VMs in an app group and 2 weeks application consist local snapshots only on Fridays, Saturdays and Sundays on the same group of VMs.
Which two options should the administrator use to configure snapshots?

Create a schedule in a protection domain for all applicable VMs to snap daily with application consistency enabled with 6 days of retention and with no application consistency and 14 days local retention.

Create two consistency groups in a protection domain, one for front-end and middle tier apps with no application consistency, one for database and Search apps with application consistency, and apply the correct schedule to both groups.

Create one protection domain for all VMsin an application group with scheduled daily non-application consistent snapshots and another protection domain for all VMs in an application group with scheduled Friday. Saturday, Sunday application consistent snapshots.

Create a protection domain forall VMs

Q48. During the knowledge transfer session, a consultant conducts a storage management demo. In the Creating a Storage Container workflow, the customer notices the Advertised Capacity parameter and asks for an explanation.
How should the consultant respond?

It is a capacity computed by dividing physical storage usage of a container by the replication factor (RF).

It assists in reserving space for a storage container to ensure a maximum storage capacity is available.

It enables the ability to cap usage of storage containers to be smaller than the limit of a storage pool capacity.

It assists in reserving space for a storage container to ensure a minimum storage capacity is available.

The “Advertised Capacity” parameter in the context of creating a storage container in Nutanix systems is used to cap the usage of storage containers to be smaller than the limit of a storage pool’s capacity. This feature allows administrators to set a maximum storage limit for a container, preventing it from using the entire storage pool’s capacity and ensuring that resources are allocated based on planned capacity requirements. This helps in maintaining predictable storage management and allocation within a Nutanix environment.References: Nutanix Storage Container Management Documentation, Nutanix Best Practices for Storage Configuration.

Q49. An alert about RX errors on eth2 on a node is reported in the cluster. The administrator logs in to the CVM in question, checks the ping_* files in the data/logs/syststats folder, and notices intermittent ping loss.
The node in question has the following network configuration:

Which action should be used to troubleshoot without disrupting the VMs running on this node?

Replace the cable from eth2 to the switch

Remove eth3 from br0-up and monitor for new alerts

Check the port on the switch side for any errors

Enable balance-s1b on br0-up and monitor if a problem persists

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.

Q50. A CEO asks the IT administrator to provide a list of required resources to protect current workloads and the two new SQL servers from a disaster. The Nutanix environment is managed by Prism Central.
Which option explains how to meet the CEO’s request?

In Capacity Runway, select Optimize Resources and select all VMs that must be protected.

Create a new project and assign the VMs to it to get compute and storage requirements.

Create a new scenario based on a new cluster based on a VM Profile and select Recommend.

Create a new Recovery policy by selecting the VM that needs to be protected and get hardware requirements.

In a Nutanix environment managed by Prism Central, protecting workloads and SQL servers from a disaster involves creating a recovery policy. A recovery policy in Nutanix is a set of rules that define how data is protected and recovered in the event of a disaster1.
Creating a new recovery policy involves selecting the virtual machines (VMs) that need to be protected and specifying the hardware requirements for the recovery environment1. This includes the compute and storage resources needed to run the protected VMs in the recovery site1.
Once the recovery policy is created, Nutanix’s built-in data protection and disaster recovery capabilities can ensure that the protected VMs can be quickly and efficiently recovered in the event of a disaster2. This includes capabilities such as efficient snapshot, cloning, and replication capabilities to provide a higher level of protection at a lower cost2.
Therefore, to meet the CEO’s request, the IT administrator should create a new Recovery policy by selecting the VM that needs to be protected and get hardware requirements.
References:
* Designing, Optimizing and Scaling Microsoft SQL Server – Nutanix
* Nutanix Data Disaster Recovery – Protect Apps & Data | Nutanix
* Recommendations For Leap And Supported Service-level … – Nutanix
* Cloud Disaster Recovery Services | Nutanix
* Nutanix – High Availability and Data Protection

Q51. An administrator is updating disk firmware using LCM and receives the following message:
“there have been 10 or more cluster services restarts within 15 minutes in the Controller VM” The message appears as each drive is upgraded.
What is the reason this message isbeing generated?

A node has been rebalanced

A drive has been reformatted

A node has been rebooted

A drive has been ejected

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

Q52. A customer has the following requirement for a Nutanix cluster:
* Must support high-performance Nutanix Volumes iSCSI workloads
* Must utilize AHV nodes
* Must use 10 GbE interface
How should the customer optimize networking?

Enable Jumbo Frame on just the Host

Convert Cluster to ESXi and enable Jumbo Frame on Host and CVM

Enable Jumbo Frames on just the CVM

Enable the use of Jumbo Frame on Host and CVM

For high-performance iSCSI workloads, especially in a Nutanix environment using AHV nodes and a 10 GbE interface, enabling Jumbo Frames on both the Host and the Controller Virtual Machine (CVM) is recommended. Jumbo Frames allow for a larger payload per network packet, which reduces the overhead required to send large amounts of data. Enabling Jumbo Frames on both the host and the CVM ensures that both ends of the communication channel can handle larger packets, thereby optimizing throughput and reducing latency for high-performance workloads.
References:
* Nutanix Bible: Networking Best Practices
* Nutanix University: Nutanix Network Optimization

Q53. Imaging fails for one or more nodes in the cluster

A log file displays this output:
Interface ethO has an uplink.
Downloading livefs files… Connecting to 10.249.230.171:8000 (10.249.230.171:8000) [80.852033] random:
nonblocking pool is initialized
tar: short read livecd files not found.
What is the possible root cause?

IPMI credentials are invalid.

There is a problem connecting to the Foundation VM.

Hypervisor version is not on the whitelist (iso_whitelist. j son).

AOS version is incompatible.

The log file output indicating a failure in downloading livefs files and problems finding the livecd files during node imaging suggests there is a problem connecting to the Foundation VM. The specific error “tar: short read livecd files not found” typically points to an interrupted or failed download process, which can be caused by connectivity issues between the nodes and the Foundation VM. Ensuring robust network connectivity or verifying network settings in the Foundation VM could resolve this issue.References: Nutanix Foundation Tool Error Messages, Nutanix Troubleshooting Documentation.

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