NCS-Core Practice Test Questions

302 Questions


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

A consultant is using the Foundation applet to create a cluster. During the process the consultant refreshes the progress bar web page and is concerned when nothing loads. What should the consultant do to verify that Foundation has completed successfully?


A. Return to the Foundation configuration page and start over.


B. Update Java on the Foundation VM.


C. Connect to any CVM IP address from a web browser.


D. Restart the Foundation process.





C.
  Connect to any CVM IP address from a web browser.

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

* Leverage LACP
* Native VLAN will not be used
* Use Multiple Upstream switches
* Use VLANs 20-25 and 30
* LACP Fallback has been Enabled
* 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

An administrator is planning to deploy a Nutanix cluster to support a few high-performance VMs. This deployment will have the following considerations:

• Individual VMs will likely generate network throughputs in the range of 90-100Mbps
• Due to the configuration of the VMs, it is unlikely that a node will host more than one or two of them at a time
• Individual VMs will communicate with only a few (one or two) remote hosts at a time • Multicast will not be used in the environment
• The hosts are connected via two 1GbE network connections

How should the administrator configure the network bonds to meet this requirement while maintaining the simplest switch configuration?


A. Configure bond0 as balance-sib


B. Configure bond0 as active-backup


C. Configure bond0 as balance-tcp


D. Configure bond0 as balance-lacp





A.
  Configure bond0 as balance-sib

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

An administrator has a 32-node hybrid cluster with CPU, RAM and storage utilization of 80%. A database VM is configured with VM Flash. What is causing this IO latency?


A. Controller VM is experiencing high CPU ready time.


B. Curator scans causes by ILM constantly moving data.


C. VM Flash Mode reduces SSD tier capacity for VMs.


D. Database VM is experiencing high CPU ready time.





B.
  Curator scans causes by ILM constantly moving data.

A customer has HE servers with DiscoverOS and wants to install a Nutanix cluster. Which method should a consultant use to meet the requirements?


A. Manually create the cluster.


B. Create the cluster using CVM Foundation


C. Image the bare metal nodes.


D. Create the cluster using Crash cart.





C.
  Image the bare metal nodes.

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: ◦Take advantage of all available 10G links ◦Achieve maximum throughput per VM ◦Use of redundant ToR switches ◦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.

In which part of the Knowledge Transfer can the customer learn how to create, escalate, comment, and close cases?


A. Operations Guide


B. Demonstration of the Support Portal


C. Demonstration of features


D. Handover Slides and Checklist





B.
  Demonstration of the Support Portal

A consultant deployed a Nutanix Files cluster using separate networks for client and storage. For testing a SMB standard share, a VM has been deployed on storage network. However, the consultant cannot access the share. What is the cause of the issue?


A. The CVM network segmentation is configured.


B. Clients on the same subnet as the storage network cannot access the shares.


C. An iSCSI Data Services IP is not configured for the cluster.


D. Clients on the same subnet as the storage network can only access the distributed shares





B.
  Clients on the same subnet as the storage network cannot access the shares.

An administrator receives reports that VDI desktop performance in an 8-node Nutanix VDI environment is poor. Opening applications takes between 1 and 2 minutes. When investigating the issue, the following conditions are found: • Cluster memory utilization: 80% • Cluster SSD utilization: 70% • Average VM CPU Wait Time: 11% • CVM CPU utilization: 75% Which action should be taken to improve VDI performance?


A. Increase the amount of SSD storage in the cluster.


B. Add memory to the nodes in the cluster.


C. Add CPU resources to the cluster.


D. Increase the number of vCPU cores allocated to the CVM.





C.
  Add CPU resources to the cluster.

A consultant finishes creating a new ESXi cluster. The consultant connects to the nodes via laptop and a personal flat switch. The host/CVM network is on VLAN 23. The customer has the native VLAN on the ToR switches set to 23. The customer wants to use LACP. Before placing the nodes on the customer network, the consultant tags VLAN 23 for each host and CVM. The consultant connects the nodes to the customer network and finds that they are unreachable. What is causing this issue?


A. The customer has LACP fallback enabled on switch ports.


B. The hosts have not been migrated to a vSphere Distributed Switch.


C. Under the vSwitch0 settings, the consultant did not select Route based on IP hash.


D. The host and CVM are incorrectly configured.





C.
  Under the vSwitch0 settings, the consultant did not select Route based on IP hash.


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