Nutanix NCS-CORE Online Practice Questions and Exam Preparation

Nutanix NCS-CORE Online Questions & Answers

• Question 181:

  During the Knowledge Transfer, the customer askes where to find the details about their Nutanix environment, such as IP addresses, storage containers, and configuration. Where can the consultant find this information?

  A. Support Portal
  B. As-Built Guide
  C. Test Plan
  D. Tech Checklist
  B. As-Built Guide

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  Explanation/Reference:

  The As-Built Guide is a comprehensive document typically prepared at the end of a Nutanix deployment project. It includes detailed information about the Nutanix environment, such as IP addresses, storage container settings, hardware and software configurations, and other deployment specifics. This document serves as a reference for the customer to understand their deployed infrastructure and for any future modifications or troubleshooting needs.

  References: Nutanix Bible: Documentation and Reporting Nutanix University: Deployment Best Practices

• Question 182:

  A consultant has deployed a Nutanix cluster with AOS 5.10.x, then discovers the customer's environment is running on AOS 5.6.x. The consultant decides to re-image the cluster using the foundation Java applet. During the Foundation discovery, all cluster nodes display a status of Unavailable.

  What should the consultant do to resolve the issue?

  A. Use the Phoenix ISO
  B. Destroy the cluster.
  C. Restart the Genesis service on the cluster.
  D. Reset the IPMI IP addresses.
  A. Use the Phoenix ISO

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  Explanation/Reference:

  When a Nutanix cluster needs to be re-imaged and nodes are showing as 'Unavailable' during the discovery process in the Foundation tool, it is often due to a deeper issue with the nodes' existing configuration or software state. Using the Phoenix ISO to re-image the nodes is the recommended approach. The Phoenix ISO can be used to completely reinstall the software on the nodes, ensuring that any problematic configurations or software issues are wiped clean, allowing for a fresh installation with the desired version of AOS.

  References: Nutanix Bible: Re-imaging Clusters Nutanix University: Troubleshooting Installation Issues

• Question 183:

  Which two components must be identified to validate that software compatibility requirements are met for Nutanix Cluster Installation? (Choose two.)

  A. Guest OS
  B. AOS
  C. Firmware
  D. Hypervisor
  B. AOS
  D. Hypervisor

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  Explanation/Reference:

  Validating software compatibility for a Nutanix cluster installation necessitates the identification of the AOS version and the type of Hypervisor in use. AOS is central to the Nutanix infrastructure, governing storage, compute, and networking functions. The hypervisor layer is critical as it supports the virtual machines running on the cluster. Compatibility between these components ensures stable operation and support for all features. References: Nutanix Certified Services - Core (NCS-Core) Learning Documents

• Question 184:

  An administrator recently added VLAN 205 CRM in Prism Element. The workloads attached to the associated NICs are unable to establish network connectivity. Which Layer 2 protocol allows the administrator to troubleshoot this issue from Prism Element?

  A. HDLC
  B. SUP
  C. LACP
  D. LLDP
  D. LLDP

• Question 185:

  After a consultant runs Foundation, the imaging process fails.

  In which two locations can the consultant find the logs? (Choose two.)

  A. On the Hypervisor - /home/nutanix/foundation/logs
  B. Logs link on the Foundation Imaging Screen
  C. On the Foundation VM - /home/nutanix/foundation/logs
  D. On the CVM - /home/Nutanix/foundation/logs
  B. Logs link on the Foundation Imaging Screen
  C. On the Foundation VM - /home/nutanix/foundation/logs

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  Explanation/Reference:

  When encountering issues during the Foundation process, such as an imaging failure, consultants need to access detailed logs to diagnose the problem. Two primary locations for these logs include the direct link accessible via the Foundation Imaging Screen, which provides real-time logs during the imaging process, and the Foundation VM directory at /home/nutanix/foundation/logs. These locations offer comprehensive log data essential for troubleshooting and resolving imaging issues. References: Nutanix Foundation documentation and troubleshooting guides from the Nutanix Bible and Nutanix University training resources.

• Question 186:

  For a new AHV cluster installation, a customer has 20 NX-8155 nodes with quad port NICs. The customer wants to meet the following guidelines:

  1.

  Take advantage of all available 10G links

  2.

  Achieve maximum throughput per VM

  3.

  Use of redundant ToR switches

  4.

  Fastest reconvergence during link failure

  How should the load balancing be configured on the host?

  A. In Prism Element, update the virtual switch uplink configuration to Active-Active with MAC pinning.
  B. In Prism Element, update the virtual switch uplink configuration to Active-Active.
  C. Use CLI to add the interfaces to bridge bro on all hosts.
  D. Use CLI to configure Balance-TCP on bridge bro.
  D. Use CLI to configure Balance-TCP on bridge bro.

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  Explanation/Reference:

  For a configuration that aims to utilize all available 10G links, achieve maximum throughput per VM, and ensure redundancy with fast reconvergence during link failure, the optimal setting would be to configure Balance-TCP on bridge br0 .

  This setting distributes the load across all available network paths based on the TCP session, maximizing the utilization of network interfaces and ensuring redundancy. This approach is particularly effective in environments with multiple

  network paths and ensures efficient network traffic management.

  References:

  Nutanix University - NCS-Core 6.8 Learning Path

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

• Question 187:

  An administrator is deploying a three-tier application on a Nutanix Enterprise Cloud consisting of web, application, and database VMs. Traffic between the servers must be limited to specific services/ports. There is an application layer firewall VM deployed on one host in the cluster.

  In which way should the administrator meet this requirement?

  A. Create a network for each type of VM, and use policy-based routing to control the traffic flow
  B. Configure a security policy and service chain redirecting the server traffic through the firewall
  C. Separate the web. application and database VMs on to dedicated VLANs
  D. Categorize the VMs in Prism Central and utilize Flow to set a security policy
  D. Categorize the VMs in Prism Central and utilize Flow to set a security policy

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  Explanation/Reference:

  For a multi-tier application where traffic must be limited to specific services and ports across web, application, and database VMs, the optimal approach is to use microsegmentation features provided by Nutanix. Option D, "Categorize the VMs in Prism Central and utilize Flow to set a security policy," is the correct choice. Nutanix Flow allows for detailed security policies that control VM-to-VM traffic within the same cluster, effectively managing access and communication based on specified criteria like VM category, service, or application type. This solution enables precise control over traffic flows, enhancing security without requiring additional physical or virtual network segmentation. References:Nutanix Flow capabilities are detailed in Nutanix Prism Central's documentation, which explains how to implement microsegmentation and security policies for application-specific traffic management.

• Question 188:

  An administrator is migrating 5MB shares from a third-party platform to Nutanix Files with the following characteristics:

  1.

  Shares contain user profile directories

  2.

  DFS-N will be used

  How should the administrator create target shares for this migration?

  A. Create multiple general purpose shares and distribute migrated data as evenly as possible.
  B. Create multiple distributed shares and distribute migrated data as evenly as possible.
  C. Create standard shares with multiple top-level directories and distribute migrated data.
  D. Create distributed shares with multiple top-level directories and distribute migrated data.
  D. Create distributed shares with multiple top-level directories and distribute migrated data.

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  Explanation/Reference:

  Ref: https://portal.nutanix.com/page/documents/details/?targetId=Files-v3_6:Files-v3_6

• Question 189:

  A customer wants to expand an existing cluster with three additional nodes. After running the Foundation process on the new nodes, the customer realizes that the wrong IPs where used and the nodes are configured on a different network. The customer decides to create a new cluster instead.

  Which method should be used to recreate the cluster?

  A. Log into IPMI and use cluster create command to create the cluster.
  B. Log into CVM and use cluster create command to create the cluster.
  C. Log into Hypervisor and use cluster create command to create the cluster.
  D. Foundation all nodes again and create the cluster.
  D. Foundation all nodes again and create the cluster.

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  Explanation/Reference:

  When nodes are mistakenly configured with incorrect IP addresses and are on a different network, the most effective way to address this is to re-run the Foundation process. By using Foundation, the nodes can be completely re-imaged with the correct network settings and then properly integrated into a new cluster. This ensures that all hardware and software configurations align with the intended network and cluster settings, avoiding potential conflicts and issues that might arise from manual adjustments.

  References: Nutanix Bible: Cluster Initialization and Foundation Nutanix University: Using Foundation for Node Deployment

• Question 190:

  During the knowledge transfer session, a consultant conducts a storage management demo. In the Creating a Storage Container workflow, the customer notices the Reserved Capacity parameter and asks for best practices related to it. How should the consultant respond?

  A. Nutanix recommends to configure at least 2 storage pools with at least one storage container each.
  B. Do not reserve less than 90% of the total space in the storage pool.
  C. Reserve capacity for a storage container only if the storage pool consists of single storage container.
  D. Reserve capacity for a storage container only if the storage pool consists of multiple storage containers.
  C. Reserve capacity for a storage container only if the storage pool consists of single storage container.

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  Explanation/Reference:

  Regarding the Reserved Capacity parameter in a storage container:

  Reserve capacity for a storage container only if the storage pool consists of a single storage container:

  This best practice ensures that dedicated space is guaranteed for the container, which is particularly important if the storage pool is not shared among multiple containers. This prevents space from being over-provisioned or unavailable when

  needed by critical applications.

  References:

  Nutanix Bible (https://www.nutanixbible.com), specifically sections on storage management and best practices for capacity planning. Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which includes detailed

  discussions on storage container configuration and management.