NCS-Core Sample Questions Answers

An administrator is deploying several new application VMs to a Nutanix cluster. The application is very transactional with a 28/72 random, read/write ratio.

What should the administrator do?

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?

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:

• Four vCPUs with one core/vCPU

• 4GB of Memory

• One 50GB vDisk for the Windows installation

• One 2TB vDisk for the application

What is the recommended configuration change to improve throughput?

An administrator finds that home shares cannot be configured in a new Files 3.5 deployment. Why is this happening?

An administrator learns that some security settings in a cluster have been changed. The environment is out ofcompliance with required policies.

Which function should be used to revert any settings that have changed from the defaults and prevent further violations?

A consultant is setting up a new Hyper-V cluster. The customer requirements are as follows:

* VMs should automatically failover to another host if the host crashes

* Host CPU and Memory resources should be evenly balanced

* New VMs should be placed on the host with the most resources available

Which two Hyper-V features can be used to meet the requirements? (Choose two.)

An administrator has an existing Nutanix seven-nodecluster running at RF2 that must be changed to have the following capabilities:

• RF3 set for the cluster

• Performance tier deduplication

What is the minimum memory needed on the CVMs to allow for these capabilities?

An administrator receives an alert in Prism indicating that interface eth2, on an AHV host is receiving many CRC errors. Aftertogging into the problematic host, the following command is run to show the indicated output:

What is causing this issue?

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 consultant is planning an installation and needs to collect configuration items to be used during the install. The data needed from the customer are IP addresses, Gateway, DNS servers, and NTP Servers.

Which Cluster Deployment document must be completed with the customer?

A CEO asks the IT administrator to provide a list of required resources to protect current workloads and the two new SQL servers from a disaster. The Nutanix environment is managed by Prism Central.

Which option explains how to meet the CEO's request?

An administrator deploys Exchange on a Nutanix cluster. The administrator creates two containers with RF2 configuration:

• One container for Exchange

• One container for the other VMs

The Exchange VM isexperiencing I/O performance issues.

Which changes to Storage Optimization should be used on the Exchange container to enhance I/O performance?

A consultant configures a Nutanix cluster and integrates the hosts into vCenter using VMware best practices. The customer has requested that the Nutanix cluster only have a single datastore.

Upon configuring the cluster per the customer requirements, vCenter displays an alert regarding the heartbeat datastore. The consultant adds the das.ignoreInsufficientHbDatastore value = true rule. The container can be seen from each host, but the alert remains active.

What should the consultant do to resolve this issue?

An administrator deletes a large amount of data from a Volume Group presented to a Linux VM. The administrator notices that the deleted data has not been reclaimed as usable storage.

Whataction should be taken to reclaim the storage capacity?

A consultant needs to verify the make and model of the systems that will be imaged with Foundation. The consultant does not have the Bill of Materials (BOM) available to review.

When should the consultant verify the make and model to prepare for the cluster deployment?

An administrator is deploying an application using Nutanix Volumes. After configuring the volume group and connecting the guest's iSCSI initiator to the volume group, they begin performance testing.

The administrator learns that performance on the virtual disk attached to the iSCSI initiator is far less than that of a virtual disk connected directly to the VM.

Which situation is causing this condition?

An administrator receives an error indicating that the CVMs in the cluster are not syncing to any NTP servers. An investigation of the issue finds:

• The NTP servers are configured in Prism

• The time on all CVMs is the same

• Both the CVMs and AHV hosts are configured for the UTC time zone

Which two steps can be taken to troubleshoot this issue? (Choose two.)

A Nutanix cluster has 10TB usable storage. The customer wants to create a 100GB datastore for ISO images to eliminate too much storage being consumed by unnecessary images.

Which setting should be used to accomplish this goal?

An administrator migrates a VM onto a new Nutanix cluster. After the migration, the administrator observes the following conditions:

• Cluster memory utilization: 64%

• Cluster CPU utilization: 19%

• Clusterstorage utilization: 32%

• Average VM CPU utilization: 25%

• Average VM CPU ready%: 24%

• Average VM memory utilization: 60%

Which two changes should the administrator make to improve VM performance? (Choose two.)

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 consultant configures an ESXi cluster which will utilize a vSphere Distributed Switch (vDS). The consultant has just migrated the first host to the dvSwitch when several alerts appear within Prism Element regarding Host-to-CVM connectivity.

What is causing these alerts?

An administrator knows that the disks in a cluster are out of date and a new firmware is available. For security reasons, these clusters do not have access to theInternet.

Which two steps must be completed to update the firmware? (Choose two.)

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 consultant is onsite with a customer running Foundation VM (FVM) and discovers that there is no connectivity between the FVM and their laptop. The consultant verifies the following:

* The consultant’s laptop and Nutanix nodes are plugged into a flat switch.

* The laptop, switch and nodes are plugged into supported power supplies.

* The laptop network adapters and FVM are configured with their corresponding IP addresses.

What is the cause for the connectivity failure to the FVM?

Refer to the exhibit.

After performing ESXi to AHV conversion on a cluster, the alerts shown in the exhibit display on Prism. What should the administrator do to resolve this issue efficiently?