Nutanix NCS-CORE Online Practice Questions and Exam Preparation

Nutanix NCS-CORE Online Questions & Answers

• Question 31:

  When utilizing the Nutanix cluster As Built Document generator, which two configuration elements should a consultant provide when running the run_as_built.exe command? (Choose two.)

  A. Data Services IP
  B. Cluster IP
  C. Remote Site IP
  D. Customer Name
  B. Cluster IP
  D. Customer Name

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  Explanation/Reference:

  When using the Nutanix cluster As Built Document generator, the necessary configuration elements to provide when running the run_as_built.exe command include the Cluster IP (B) and the Customer Name (D). The Cluster IP is required to properly identify and communicate with the cluster to gather configuration and operational data. The Customer Name is typically used to personalize the documentation, making it specific to the client's deployment, which is useful for record-keeping and future reference purposes.References: Nutanix As Built Documentation generator usage guidelines, Nutanix Best Practices for Documentation.

• Question 32:

  Refer to the exhibit.

  

  A consultant is deploying a cluster using the customer-provided IP addressing information.

  Which option in Foundation must be configured to ensure connectivity during the deployment?

  A. Link Aggregation
  B. Range Autofill
  C. Network Segmentation
  D. Multi-homing
  B. Range Autofill

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  Explanation/Reference:

  During the deployment of a cluster using the Nutanix Foundation, ensuring all IP ranges are correctly configured is crucial for successful connectivity and deployment. "Range Autofill" is a feature in Foundation that automatically populates IP address fields based on the first IP provided, ensuring consistency and correctness across multiple nodes being deployed simultaneously. This feature helps avoid manual entry errors and ensures all nodes are configured with appropriate IP addresses that fall within the specified range. References: Nutanix University (https://university.nutanix.com/)

• Question 33:

  A consultant needs to review a customer's switch port configuration to identify any issues. Other customer requirements are as follows:

  1.

  Leverage LACP

  2.

  Native VLAN will not be used

  3.

  Use Multiple Upstream switches

  4.

  Use VLANs 20-25 and 30

  5.

  LACP Fallback has been Enabled

  6.

  vPC or MLAG has been configured

  What must be included in a configuration in order to meet these requirements?

  A. Native VLAN set to default Ports trucked to allow all necessary VLANs
  B. Native VLAN set to default Ports in access mode to allow all necessary VLANs
  C. Native VLAN set to 30 Ports Trunked to allow all necessary VLANs
  D. Native VLAN set to 30 Ports in access mode to allow all necessary VLANs
  A. Native VLAN set to default Ports trucked to allow all necessary VLANs

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  Explanation/Reference:

  The requirements specify the use of LACP with multiple VLANs and without the use of a native VLAN. Trunk ports must be configured to carry multiple VLANs, which is necessary for scenarios involving LACP across multiple switches (MLAG or vPC). Setting the native VLAN to default and not using it in traffic management while trunking the ports meets these needs effectively. References: Nutanix Bible (https://www.nutanixbible.com/), Nutanix Official YouTube Training Series

• Question 34:

  An administrator is supporting a business critical environment and deploys metro availability to achieve a zero data loss configuration. The two clusters are connected by a 1GbE connection. A new workload is going to be deployed to this cluster. This workload requires a sustained 150MB/S of write throughput and 20MB/s of read throughput.

  Which change must be made to deploy the workload successfully on this cluster?

  A. The bandwidth must be increased to support this workload.
  B. The workload must be configured to read at greater than 12.5MB/S.
  C. The replication frequency must be less than 60 minutes.
  D. Zero data loss nearsync must be used to support this workload.
  A. The bandwidth must be increased to support this workload.

• Question 35:

  A consultant is running operational verifications to validate cluster behaviors

  What will happen if one power supply is disconnected from a NX-3235-G9 chassis?

  A. The hardware status is updated to reflect the change in Prism Element, the hosts continues to run, but VMHA has started securing workloads by moving them to other nodes.
  B. 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 There is no impact on workloads.
  C. The hosts appears disconnected in Prism Element and VMs are restarting on the other hosts.
  D. The hosts appears disconnected in vCenter and VMs are restarting on the other hosts.
  B. 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 There is no impact on workloads.

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  Explanation/Reference:

  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.

• Question 36:

  Refer to Exhibit: A customer has completed and given the pre-delivery questionnaire to the consultant. The customer has indicated that they are using HPE/OEM hardware. Which action should the consultant take to prepare the laptop and Foundation networking for the installation?

  

  A. Configure Backplane Traffic Isolation.
  B. Set IP Addresses in CVM/Host subnet only.
  C. Set IP Addresses in both CVM/Host and IPMI subnets.
  D. Enable network segmentation.
  C. Set IP Addresses in both CVM/Host and IPMI subnets.

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  Explanation/Reference:

  When preparing the laptop and Foundation networking for the installation on customer-indicated HPE/OEM hardware, the consultant should set IP addresses in both the CVM/Host and IPMI subnets (Option C) This ensures that all necessary network interfaces are appropriately configured for management and operational traffic, facilitating seamless communication during the foundation process. Properly setting up IP addresses in both subnets is crucial for ensuring that the Foundation process can access both the CVMs/Hosts and the IPMI for management tasks.References: Nutanix Foundation Guide, Network Preparation for Nutanix Installations.

• Question 37:

  From a hypervisor, which IP address should the consultant use to connect to the locally tossed on?

  A. 192.168.5.254
  B. 172.16.19.2
  C. 10.100.5.5
  D. 192.168.1.254
  A. 192.168.5.254

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  Explanation/Reference:

  When configuring network settings for a hypervisor or accessing local services hosted on it, the IP address must be reachable from the network configuration you are currently using. Given the generic nature of the options, the correct choice

  typically depends on the subnet used for management purposes, which often uses a standard private address. "192.168.5.254" is a common choice for local network configurations and is likely set up as the gateway or a primary network

  interface on the hypervisor.

  References:

  Nutanix University - NCS-Core 6.8 Learning Path

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

• Question 38:

  An administrator is trying to correct high cluster IOPs and Cluster Controller Latency. Networking is the suspected issue.

  Which networking parameters should be configured in the Nutanix cluster?

  A. Bond State and network latency
  B. Number of NICs connected and network latency.
  C. Number of NICs connected and frame size
  D. Number of NICs connected and bond state.
  C. Number of NICs connected and frame size

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  Explanation/Reference:

  When addressing high cluster IOPS and Cluster Controller Latency where networking is suspected to be the issue, it is essential to check the network configuration settings that can directly impact data transfer and latency. The correct answer is to adjust the "Number of NICs connected" and "frame size." Increasing the number of Network Interface Cards (NICs) connected can improve the network throughput and distribute the load more evenly. Adjusting the frame size, particularly setting larger frames (Jumbo Frames), can reduce overhead and improve network efficiency by allowing more data to be transmitted with fewer packets.

  References: Nutanix Bible: Networking Considerations Nutanix University: Network Performance Optimization

• Question 39:

  Refer to the exhibit.

  

  The customer has an existing NX-3160 block and is adding a second node into it. Where should the node be installed?"

  A. 1
  B. 2
  C. 3
  D. 4
  B. 2

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  Explanation/Reference:

  Based on the exhibit which shows an NX-3160 block with marked slots, the correct slot for installing a new node in the existing NX-3160 block is slot 2. This configuration is typically aligned with the chassis' design for orderly expansion and maintaining balanced power and cooling distribution among the nodes.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

• Question 40:

  A customer racks all nodes in the new cluster. The customer does not allow IPv6 for node discovery. The consultant is not allowed to use the consultant's own flat switch in the customer's environment. Which step should the consultant take to resolve this issue?

  A. Bare metal image all nodes with Foundation VM.
  B. Image each node individually with Foundation VM.
  C. Connect to the top of rack switch and discover the nodes with IPv4.
  D. Open a console to all nodes and statically assign IP addresses.
  C. Connect to the top of rack switch and discover the nodes with IPv4.

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  Explanation/Reference:

  In environments where IPv6 is not allowed for node discovery and the use of an external flat switch by the consultant is also restricted, the viable approach is to connect to the top of rack switch and discover the nodes using IPv4. This method

  aligns with the customer's networking policies and leverages the existing network infrastructure to facilitate the discovery and configuration of the nodes within the Nutanix cluster.References:

  Nutanix Bible, Nutanix University NCS-Core 6.8 resources, and Nutanix official guidelines on node discovery using IPv4.