Nutanix NCS-CORE Online Practice Questions and Exam Preparation

Nutanix NCS-CORE Online Questions & Answers

• Question 131:

  During Foundation using a customer-provided network switch, a consultant is facing time-out issues.

  What action should the consultant take to resolve this issue?

  A. Check jumbo frames support of the network switch.
  B. Ensure the firmware of network switch is updated.
  C. Enable queue depth on ports connected to nodes.
  D. Disable STP on ports connected to Nutanix nodes.
  A. Check jumbo frames support of the network switch.

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  Explanation/Reference:

  When encountering timeout issues during Foundation using a customer-provided network switch, one common cause can be mismatched or unsupported network configurations, particularly concerning MTU sizes:

  Check jumbo frames support of the network switch: Ensuring that the switch supports jumbo frames (MTU of 9000) and is properly configured for it can prevent timeout issues that might arise due to packet fragmentation or dropped packets.

  References:

  Nutanix Bible (https://www.nutanixbible.com), which discusses network prerequisites for successful Foundation.

  Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering the technical setup and network requirements for cluster deployments.

• Question 132:

  A systems administrator configures a protection domain replication between two Nutanix clusters. After the first successful replication , the administrator tests DR by clicking activate on the remote cluster. While VMs are active on the remote cluster, the protection domain is marked as active on both clusters.

  What steps are required to return both clusters to their original state?

  A. 1. On the remote site, deactivate the Protection Domain using ncli 2. On the primary site, select the Protection Domain and dick migrate
  B. 1. On the remote site, promote the Protection Domain 2. On the primary site, change the Protection Domain state from Decoupled to Disabled 3 Enable the original primary site as remote site
  C. 1. On the prima7 site, suspend replications 2. On the remote site, deactivate the Protection Domain using ncli 3. On the remote site, migrate the protection domain back to the primary site
  D. 1 On the remote site, restore the snapshots from the Protection Domain 2. On the remote site, select the Protection Domain and migrate to the primary site
  C. 1. On the prima7 site, suspend replications 2. On the remote site, deactivate the Protection Domain using ncli 3. On the remote site, migrate the protection domain back to the primary site

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  Explanation/Reference:

  To revert both clusters to their original state after testing DR by activating VMs on the remote cluster, the administrator needs to ensure that replications are suspended to prevent any further changes during the process. The steps include suspending the replications on the primary site to prevent any conflicts or data loss (Step 1), deactivating the Protection Domain on the remote site using ncli to stop the DR environment (Step 2), and then migrating the protection domain back to the primary site (Step 3). This sequence ensures that both clusters return to their original states with minimal disruption.References: Nutanix Disaster Recovery Guide, Nutanix Administration Guide.

• Question 133:

  A customer is running out of storage in an ESXi cluster. The customer wants to add storage without paying for an additional hypervisor license.

  Which option should the consultant recommend to meet the requirement?

  A. Convert the cluster to AHV to support storage-only node requirements.
  B. Select the storage-only checkbox during Foundation and then expand the cluster in Prism.
  C. Buy a new node to meet the requirements of the storage-only node specifications.
  D. Edit the factory_config.json file to configure the node as storage-only and then expand the cluster in Prism
  A. Convert the cluster to AHV to support storage-only node requirements.

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  Explanation/Reference:

  When a customer needs to add storage to an ESXi cluster without incurring additional hypervisor licensing costs, converting the cluster to Nutanix AHV presents a viable solution. AHV allows the incorporation of storage-only nodes, which can extend the cluster's storage capacity without necessitating additional licenses for hypervisor usage.

  References: Nutanix Solutions for ESXi to AHV Migration: Nutanix Documentation Nutanix AHV Licensing and Features Guide: Nutanix Licensing Information

• Question 134:

  Which configuration item is a hard requirement to deploy a Nutanix cluster?

  A. Nutanix cluster name
  B. Cluster Virtual IP
  C. Motion IP address
  D. CVM IP address
  D. CVM IP address

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  Explanation/Reference:

  The CVM IP address is a hard requirement for deploying a Nutanix cluster. Each CVM must have a unique IP address assigned to it as this IP address is critical for cluster operations, including data replication, management activities, and

  communication between CVMs and hypervisors. The other options, while important for various functionalities, do not represent a hard requirement for initial deployment.

  References:

  Nutanix University - NCS-Core 6.8 Learning Path

  The Nutanix Bible, Cluster Configuration chapter (https://www.nutanixbible.com/)

• Question 135:

  An administrator has a custom backup application that requires a 2TB disk and runs in Windows. Throughput is considerably lower than expected.

  The application was installed on a VM with the following configuration:

  1.

  Four vCPUs with one core/vCPU

  2.

  4GB of Memory

  3.

  One 50GB vDisk for the Windows installation

  4.

  One 2TB vDisk for the application

  What is the recommended configuration change to improve throughput?

  A. Increase the number of cores per vCPU
  B. Increase the vCPUs assigned to the VM
  C. Span the 2TB disk across four vDisks
  D. Add 4GB of memory to the VM
  C. Span the 2TB disk across four vDisks

• Question 136:

  Where can a consultant find Nutanix Enablement Starter Packs (ESPs)?

  A. In the Partner Portal
  B. In the Nutanix .NEXT Community Forum
  C. In the Support Portal
  D. In the Services section of the Nutanix website.
  A. In the Partner Portal

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  Explanation/Reference:

  Nutanix Enablement Starter Packs (ESPs) are resources designed to aid Nutanix partners in ramping up their knowledge and capabilities with Nutanix solutions. These packs typically include training materials, guides, promotional materials, and more. They are most commonly found in the Nutanix Partner Portal, which is designed to support Nutanix partners in their sales and technical education efforts.

  References: Nutanix Bible: Partner Resources Nutanix University: Partner Enablement Programs

• Question 137:

  While preparing for a new four-node cluster installation, the consultant has a Tech Review Call with the customer. The hardware is as follows:

  1.

  4 nodes in 1 Block

  2.

  8 x 10 GbE Ports

  3.

  4 x 1 GbE IPMI Ports

  4.

  Adequate Ethernet ports are available

  5.

  Ethernet cables are correct and available

  6.

  Adequate rack space is available

  Which remaining item must be confirmed as available onsite?

  A. Crash Cart
  B. Fibre Channel switches
  C. Redundant 208v power
  D. Redundant 110v power
  C. Redundant 208v power

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  Explanation/Reference:

  In the preparation for a new cluster installation, after ensuring that the basic physical requirements such as space, cabling, and hardware connectivity are met, it's crucial to confirm power requirements. For enterprise installations, particularly where high-powered equipment like a four-node cluster is involved, ensuring redundant power is critical. The question specifically mentions "redundant" power, suggesting the need for a high-capacity solution typically found in 208v configurations in data centers, which provides more power efficiently and is standard for high-density computing hardware. Therefore, redundant 208v power should be confirmed as available onsite to support the new cluster's power needs effectively. References: Nutanix Certified Services - Core (NCS-Core) training materials and installation best practices available through Nutanix University and the Nutanix Bible.

• Question 138:

  Refer to the exhibit.

  

  A consultant is installing AOS 5.10 and ESXi 6.5 on three nodes. During the Foundation process, ESXi 6.5 is not available as one of the choices for hypervisor. Which solution should the consultant use?

  A. Upload ESXi image to /home/Nutanix/foundation/nos/hypervisor/esx.
  B. Restart Foundation VM and refresh Foundation page.
  C. Update the Foundation whitelist from the support portal.
  D. Upload ESXi image to /home/Nutanix/foundation/isos/hypervisor/esx.
  D. Upload ESXi image to /home/Nutanix/foundation/isos/hypervisor/esx.

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  Explanation/Reference:

  If ESXi 6.5 is not available as one of the choices for hypervisor during the Foundation process, the consultant should upload the ESXi image to the specific directory where Foundation expects to find hypervisor images. The correct path for this operation is /home/Nutanix/foundation/isos/hypervisor/esx . This allows the Foundation tool to detect and use the ESXi image for installation on the nodes.References: Nutanix Foundation Guide, Nutanix Support Documentation.

• Question 139:

  An administrator needs to create and start five new VMs for a Data Analytics Project (OLAP). The VM Profile is as follows:

  1.

  vCPU:4

  2.

  vRAM: 64 GB

  3.

  vDisk: 1.5 TB

  Each of the four nodes of the Nutanix cluster has the following:

  1.

  24 vCPU. 20% overall usage

  2.

  192 GB RAM, 60% overall usage

  3.

  2xl920GBSSD

  4.

  4x 2 TB HDD

  At cluster level, there is a single RF2 container that is 30% utilized and has an extent store capacity of 13.5 TB.

  Which component requires administrator attention?

  A. Physical RAM, because it is not enough to power on all of the new VMs.
  B. Physical Cores, because they are not enough to power on all of the new VMs.
  C. Storage, because the capacity is not enough to create VMs.
  D. Flash Tier because it is not enough to accommodate the workloads.
  A. Physical RAM, because it is not enough to power on all of the new VMs.

• Question 140:

  Based on customer requirements, a consultant conducted an AHV cluster deployment. Each node is configured with four NICs.

  Which two components should the consultant manually update in the As-Built Guide? (Choose two.)

  A. Node Port Layout Diagram
  B. Network Cabling Diagram
  C. Logical Design Diagram
  D. Site installation Diagram
  A. Node Port Layout Diagram
  B. Network Cabling Diagram

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  Explanation/Reference:

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

  Node Port Layout Diagram: To reflect the physical connectivity and usage of each NIC on the nodes.

  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.