Nutanix NCS-CORE Online Practice Questions and Exam Preparation

Nutanix NCS-CORE Online Questions & Answers

• Question 201:

  After imaging the nodes and creating the cluster successfully, the consultant connects the cluster to the customer network. When logging into Prism, the events dashboard is full of errors. What is causing the issue?

  A. The cluster was not stopped prior to connecting to the customer network.
  B. The Cluster Virtual IP Address (VIP) was not set up during the process.
  C. Foundation did not create the cluster successfully.
  D. The consultant did not run Nutanix Cluster Check (NCC)
  B. The Cluster Virtual IP Address (VIP) was not set up during the process.

  ---

  Explanation/Reference:

  After creating a cluster and connecting it to the customer's network, if the events dashboard in Prism is full of errors, a likely cause could be that the Cluster Virtual IP Address (VIP) was not properly set up. The VIP is crucial for accessing the Nutanix Prism interface and for the proper functioning of the cluster's management operations.

• Question 202:

  Which subnet is reserved for internal connectivity within a Nutanix Cluster?

  A. 192.168.5.0/24
  B. 192.168.254.0/24
  C. 192.168.5.0/23
  D. 192.168.5.0/26
  A. 192.168.5.0/24

  ---

  Explanation/Reference:

  Within a Nutanix cluster, the subnet 192.168.5.0/24 is typically reserved for internal connectivity. This subnet is used for the internal communication between Nutanix Controller VMs (CVMs) and other cluster components. It ensures isolated and efficient network traffic management that is crucial for cluster operations.

  References: Nutanix Network Configuration Guide: Nutanix Networking Guide Nutanix Best Practices for Network Configuration: Nutanix Community

• Question 203:

  According to Nutanix best practices, which interface configuration should be used when setting up the default bond?

  A. One 10G uplink only
  B. 10G uplinks only or 25G uplinks only
  C. One 10G uplink paired with one 25G uplink
  D. One 1G uplink paired with one 10G uplink
  B. 10G uplinks only or 25G uplinks only

  ---

  Explanation/Reference:

  According to Nutanix best practices for network configuration, it is recommended to use either:

  10G uplinks only: This provides sufficient bandwidth for typical data center operations.

  25G uplinks only: This option is suitable for higher bandwidth requirements. Mixing uplinks with different speeds, such as 10G and 25G, is not recommended as it can lead to non-optimal performance and complexity in handling traffic.

  References:

  Nutanix Bible (https://www.nutanixbible.com), specifically sections discussing network interface configurations.

  Nutanix Network Administration Guide, which details best practices for network setup.

• Question 204:

  A consultant is performing a Nutanix Cluster installation on Dell XC Core hardware. The consultant decides to use Foundation Portable for Mac to perform the installation. When the consultant arrives onsite, Foundation Portable is unable to locate the new nodes.

  Which log should the consultant check to troubleshoot this issue?

  A. /home/nutanix/foundation/log
  B. ~/data/logs/foundation.out
  C. foundation.app/contents/resouces/log
  D. ~/data/logs/foundation
  B. ~/data/logs/foundation.out

  ---

  Explanation/Reference:

  For troubleshooting issues with Foundation Portable on Mac not locating new nodes, the consultant should check the ~/data/logs/foundation.out log. This log file contains detailed operational entries that describe the activities of the Foundation tool, including any errors encountered during the node discovery process. This can provide insights into why the nodes are not being detected and guide the consultant on the necessary corrective actions.

  References: Nutanix Bible: Foundation Deployment and Troubleshooting Nutanix University: Foundation Tool Usage

• Question 205:

  As a consultant concludes the project for deploying a new cluster, the customer expresses plans to repeat the process in-house for one of the company's dark site locations.

  What three items can the consultant deliver in closing to help ensure customer's success in deploying and supporting Nutanix clusters?

  A. 1. Creating an account for access to Nutanix Support Portal 2. External USB drive 3. Offline NCC bundle
  B. 1. A trial license activation code for Prism Starter 2. Creating an account for access to Nutanix Support Portal. 3. Guide for dark site deployments using Nutanix standards
  C. 1. Generating cluster licenses 2. What are binaries and where can they be downloaded 3. Creating an account for accessing the Nutanix Support Portal
  D. 1. External USB drive 2. Access to Nutanix FTP 3. Encrypted key required for accessing clusters
  B. 1. A trial license activation code for Prism Starter 2. Creating an account for access to Nutanix Support Portal. 3. Guide for dark site deployments using Nutanix standards

  ---

  Explanation/Reference:

  As the consultant concludes the project, to assist the customer with repeating the deployment process at a dark site, the best items to deliver would be:

  A trial license activation code for Prism Starter, which will allow the customer to begin using the Nutanix cluster immediately without initial extra costs. Creating an account for access to the Nutanix Support Portal, ensuring the customer can

  access support and documentation as needed for troubleshooting and learning. A guide for dark site deployments using Nutanix standards, which will provide step-by-step instructions tailored to the specific challenges of deploying in a

  location with no direct internet connectivity. These resources are critical for enabling the customer to independently deploy and manage Nutanix clusters under the unique constraints of a dark site.

  References : Nutanix Deployment Guide, Nutanix Support Portal Documentation.

• Question 206:

  A consultant is running Foundation. The cluster creation fails during the process. The host logs confirm that the nodes have been successfully imaged. The consultant decides to create the cluster manually. Which command should the consultant use?

  A. cluster -c IP_CVM_A, IP_CVM_B, IP_CVM_n
  B. cluster create -s IP_CVM_A, IP_CVM_B, IP_CVM_n
  C. cluster -s IP_CVM_A, IP_CVM_B, IP_CVM_n create_manual
  D. cluster -s IP_CVM_M, IP_CVM_B, IP_CVM_n create
  B. cluster create -s IP_CVM_A, IP_CVM_B, IP_CVM_n

  ---

  cluster create -s IP_CVM_A, IP_CVM_B, IP_CVM_n

  This command specifies the -s option to include the IP addresses of the Controller Virtual Machines (CVMs) on the nodes, initiating the manual cluster creation process.

  References:

  Nutanix Bible (https://www.nutanixbible.com), particularly the sections on manual cluster operations.

  Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), with detailed instructions on manual cluster commands.

• Question 207:

  During which part of the Knowledge Transfer does the customer learn about Nutanix basics and their environment at a high level?

  A. Technical Checklist
  B. Technical Handoff Slides
  C. Support portal
  D. As-Built Guide
  B. Technical Handoff Slides

  ---

  Explanation/Reference:

  During the Knowledge Transfer phase, customers typically learn about Nutanix basics and their specific environment at a high level through "Technical Handoff Slides." This part of the training and handover process provides a broad overview of the installed solution, how it operates, and how it interacts with the existing infrastructure, making it essential for foundational understanding.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

• Question 208:

  An administrator of a Nutanix Enterprise Cloud has microsegmentation enabled and a firewall VM installed. The security team notifies the administrator that one of the VMs hosted in the environment has been exhibiting suspect network activity. The administrator wants to isolate the VM from the production network, but must still be able to access it to perform diagnostics.

  What should the administrator do to meet the requirement?

  A. Disable the vNIC on the affected VM
  B. Quarantine the VM using the Forensic Method
  C. Create a firewall rule that blocks VM traffic but permits diagnostic access
  D. Create a security policy with a service chain directing that VMs traffic to the firewall VM
  B. Quarantine the VM using the Forensic Method

  ---

  Explanation/Reference:

  Ref https://portal.nutanix.com/page/documents/kbs/details?targetId=kA00e000000LIelCAG

• Question 209:

  A consultant is viewing an ESXi host via console without external network connectivity. Which two IP addresses can be used to connect to the CVM (Choose two.)

  A. 192.168.5.253
  B. 192.168.5.2
  C. 192.168.5.254
  D. 192.168.5.1
  A. 192.168.5.253
  C. 192.168.5.254

  ---

  Explanation/Reference:

  In the scenario where a consultant is viewing an ESXi host via console without external network connectivity and needs to connect to the Controller Virtual Machine (CVM), the typical IP addresses used for such connections in a Nutanix environment are in the 192.168.5.x range. Specifically, the IP addresses for CVMs often set by default or during initial configuration, such as 192.168.5.253 and 192.168.5.254 (Options A and C), can be used. These addresses are generally reserved for internal CVM communications and can be accessed through the host's internal network configurations.References: Nutanix Cluster Installation Guide, Default Nutanix Network Configurations.

• Question 210:

  A consultant is deploying a two-node cluster at a remote branch office. Which component must be available to complete cluster configuration?

  A. Prism Central
  B. Witness VM
  C. Remote Site
  D. Protection Domain
  B. Witness VM

  ---

  Explanation/Reference:

  In the deployment of a two-node cluster at a remote branch office, the presence of a Witness VM is essential to manage the cluster quorum and data integrity in case one of the nodes fails or becomes unreachable. The Witness VM acts as an external arbitrator that helps prevent data unavailability and split-brain scenarios in a situation where the cluster nodes cannot communicate with each other. This configuration is necessary because with only two nodes, there isn't a third node to maintain quorum natively.References: Nutanix Bible, Nutanix University