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NCS-Core Nutanix Certified Services Core Infrastructure Professional Questions and Answers

Questions 4

A consultant discovers that while the Foundation VM and the consultant's laptop are able to ping each other nodes are rea discovered while trying to run Foundation on the customer's network.

What should the consultant do to resolve the issue?

Options:

A.

Connect to same switch as the cluster and ping.

B.

Install Java on the Foundation VM.

C.

Enable IPv6 and multicast on the switch.

D.

Enable IPv6 and multicast on the laptop.

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Questions 5

For a new AHV cluster installation, a customer has 20 NX-8155-G6 nodes with quad port SFP NICs.

The customer wants to meet the following guidelines:

* Take advantage of all available 10GbE 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?

Options:

A.

ovs-vsctl set port br0-up bond_mode=balance-slb

ovs-vsctl set port br0-up other_config:bond-rebalance-interval=30000

ovs-vsctl set port br0 tag=10

B.

ovs-vsctl set port br0-up bond_mode=active-backup

ovs-vsctl set port br0-up other_config:bond-rebalance-interval=30000

C.

ovs-vsctl set port br0-up bond_mode=balance-slb

D.

ovs-vsctl set port br0-up other_config:lacp-fallback-ab=true

ovs-vsctl set port br0-up lacp=active

ovs-vsctl set port br0-up bond_mode=balance-tcp

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Questions 6

An administrator has a VM that consumes large amounts of storage and has the following characteristics:

• Create large / sequential writes

• Data must be kept for years

• Data is normally only accessed at the end of the year to run report

The administrator decides to use Erasure Coding to save space.

Which feature should the administrator utilize to save space for this VM?

Options:

A.

Inline Compression

B.

Flash Mode

C.

Cache Dedup

D.

Post-Process Compression

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Questions 7

While creating an image placement policy on the organizations AOS 5.15-based Nutanix cluster, the administrator wants to ensure there are no restrictions on using the selected images on clusters outside of the identified set.

What type of Policy Enforcement must the administrator choose?

Options:

A.

Soft

B.

Internal

C.

Hard

D.

External

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Questions 8

Refer to Exhibit:

A Foundation install must be done on four NX nodes for a new customer. A consultant need to set up the network onsite before imaging the nodes through the Foundation tool.

The nodes are equipped with two SFP28 25GbE NICs with dual ports, and a 10GBase-T NIC with dual ports as well The customer’s ToR switches are 25GbE datacenter switches, already in production.

What is the appropriate hardware to perform the most reliable imaging of these NX nodes?

Options:

A.

A flat Ethernet switch, 4 compatible IGBase-T GBiCs, five Ethernet cables and a laptop.

B.

The 25GbE production switches. 4 DAC cables and 5 Ethernet cables with a flat Ethernet switch, and a laptop.

C.

A flat Ethernet switch. 9 Ethernet cables, and a laptop.

D.

The 25GbE production switches. 4 DAC cables, only one Ethernet cable with a 10GBase-T GBIC, and a laptop.

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Questions 9

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

Options:

A.

Guest OS

B.

AOS

C.

Firmware

D.

Hypervisor

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Questions 10

An administrator is monitoring the Nutanix v5.15-based AOS cluster performance logs and notices that a SQL server VM is greatly exceeding its intended maximum IOPS. The administrator has confirmed that a QoS policy was previously created for the group of VMs this server is a member of.

What are two reasons that this VM would exceed its maximum configured IOPS from the QoS Policy? (Choose two.)

Options:

A.

The VM is missing the required snapshot needed to implement the QoS Policy.

B.

The VM was not created as an AFS virtual machine.

C.

The SQL Server VM has volume groups attached.

D.

It was cloned from another SQL Server VM that was a member of the QoS Policy.

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Questions 11

After uploading a hypervisor ISO during the Foundation process, a consultant sees a message that the MD5 sum for the hypervisor is not found in the Whitelist file.

Which step should the consultant take next to resolve this issue?

Options:

A.

Download the hypervisor ISO again from the vendor website.

B.

Restart the Foundation process and upload the hypervisor again.

C.

Download the latest hypervisor ISO whitelist file from Nutanix portal.

D.

Check the hypervisor version in the Nutanix Compatibility Matrix.

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Questions 12

An administrator needs to maximize storage potential in a six-node cluster. The container is configured with the following:

  • Post-process compression
  • Capacity deduplication

What should the administrator configure to increase space savings?

Options:

A.

Erasure coding

B.

Inline compression

C.

Reserve capacity

D.

Cache dedupe

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Questions 13

A consultant is running Foundation discovery with Foundation VM and is unable to dynamically discover the nodes. The consumer needs another method to image the nodes.

What information does the consultant need to do bare metal Foundation?

Options:

A.

Serial # of Block

B.

IPMI MAC Address

C.

LAN MAC Address

D.

Serial # of Node

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Questions 14

For several days, an administrator notices the following alerts:

• CVM NIC Speed Low Warning Alerts

• Warning Alerts of CVM NIC not performing at optimal speed

• CVM is disconnected from the network Critical Alert

• Network Visualization page shows excessive dropped packets on CVM/Host

Which steps should be taken to determine which problem should be addressed first?

Options:

A.

• Access the Hardware Page to verify resources are available

• Analyze ail CVM Speed Alerts in the Alerts/Events page

• Analyze output for the network and interface properties and connectivity issues

B.

• Verify Host/CVM connectivity on the Network Visualization page

• Use to verify the bridge and bond configuration

• Review alerts/events page for the CVM disconnected error

C.

• Review Alerts page for NIC speed alerts and alert timing

• Analyze the genesis.out log file for process failures

• Assess the NIC properties in the Network Visualization > Host Properties page

D.

• Restart networking services on the CVM

• Determine the current configuration of the affected CVM via output

• Access the Alerts/Events page for the CVM network connection failures

Questions 15

A consultant is setting up a new vSphere cluster. 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 settings should be turned on to meet the requirements? (Choose two.)

Options:

A.

vShpere DRS

B.

vSphere HA

C.

vSphere vMotion

D.

vSphere Power Management

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Questions 16

A Nutanix cluster is deployed with the following configuration:

• Three four-node blocks (A, B, and C)

• All Flash Redundancy Factor 2

What is the effect of simultaneous disk failures on two nodes located in block A?

Options:

A.

VMs are migrated off of the nodes with disk failures.

B.

Each node with a failed disk is marked as degraded.

C.

VM read and write operations continue normally.

D.

VMs on the nodes with failed disks are unable to write data

Questions 17

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?

Options:

A.

Turn off and then turn back on HA.

B.

Make sure the DRS setting is turned on.

C.

Create a second container.

D.

Whitelist the vCenter IP address within Prism.

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Questions 18

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?

Options:

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.

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Questions 19

A customer has Metro Availability configured in Automatic Resume Mode between Site A and Site B What happens to VMs if Primary Site A has full network failure?

Options:

A.

Automatic protection domain promotion in Site B. VMs automatically restart in Site B

B.

VMs continue to run on Site A following an automatic disable of protection domains.

C.

An administrator must unwitness in Site B and promote protection domains in Site B for VMs to restart

D.

An administrator must promote protection domains in Site B for VMs to restart.

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Questions 20

A consultant is reviewing a customers Pre-delivery Questionnaire.

The customer wants to deploy their cluster with ESXi as the hypervisor with vSphere Distributed Switch. The customer will be using Cisco Nexus 9k as their switch choice In the kick-off call, it is confirmed that the customer has a business requirement to use LACP in their environment.

What should the consultant ensure that the customer configures on the port-channel interface before deployment?

Options:

A.

show pore-channel

B.

no lacp graceful-convergence

C.

service unsupported-transceiver

D.

no lacp suspend-individual

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Questions 21

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?

Options:

A.

From Container Advanced Settings, configure 100GB for advertised capacity.

B.

From Container Advanced Settings, enable erasure coding.

C.

From Container Advanced Settings, turn on compression and deduplication.

D.

From Container Advanced Settings, configure 100GB for reserved capacity.

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Questions 22

An administrator is configuring an All Flash cluster to support the following workloads:

• Full clone virtual desktops

• Hadoop

• Write heavy databases

Which three correct configuration options should the administrator use to meet the item requirements? (Choose three.)

For each procedure, indicate whether it is a correct or incorrect procedure that must be configured to meet the item requirements using the drop-down option.

Options:

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Questions 23

A consultant is planning to use a flat switch for installation.

What is the network requirement for Foundation VM, CVM, Hypervisor, and IPMI

Options:

A.

Foundation VM, CVM, and Hypervisor must be on the same subnet. IPMI can be on a different subnet.

B.

CVM, Hypervisor, and IPMI must be on the same subnet. Foundation VM can be on a different subnet.

C.

Foundation VM and CVM must be on the same subnet. Hypervisor and IPMI can be on a different subnet.

D.

Foundation VM, CVM, and IPMI must be on the same subnet. Hypervisor can be on a different subnet.

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Questions 24

A customer has NearSync configured. When the administrator tries to restore a snapshot from 3 minutes ago, it is not available. The snapshots are happening at 15-minute intervals instead of at the 5-minute configured interval. When the protection domain was initially set up, the snapshots were happening at the expected 5-minute interval.

What should the customer do to enable the snapshots to happen at the expected interval?

Options:

A.

Utilize Metro Availability to meet this requirement

B.

Change the protection domain to use Async DR

C.

Fix a connectivity issue because the protection domain reverted to Async

D.

Configure the protection domain to take snapshots on 15-minute intervals

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Questions 25

During a technical call with a customer, it is identified that this installation will be software only on Dell servers. The out-of-band management interfaces will not be given IP addresses until the consultant is onsite.

Which Foundation method should be used for this type of installation?

Options:

A.

Bare metal using iDRAC MAC addresses.

B.

Bare metal using LAN MAC addresses.

C.

Bare metal using block serial numbers.

D.

Bare metal using node serial numbers.

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Questions 26

During a six-node cluster deployment, one node fails to image successfully and Foundation is unable to automatically configure the cluster. The consultant decides to manually complete cluster formation with the successful nodes, then expand the cluster with the remaining unconfigured node.

Which command should be used to begin the process?

Options:

A.

cluster status

B.

cluster create

C.

cluster start

D.

cluster expand

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Questions 27

Microsegmentation was recently enabled in a Nutanix environment. The administrator wants to leverage Prism Central to create a policy that will block all traffic, regardless of direction, between two groups of VMs identified by their category.

Which policy should be used to meet this requirement?

Options:

A.

A Quarantine Policy

B.

An Isolation Environment Policy

C.

An Application Security Policy

D.

A Whitehst-Based Policy

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Questions 28

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?

Options:

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.

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Questions 29

Refer to the exhibit.

A Microsoft SQL 2016 deployment is shown in the exhibit. The administrator receives user reports that database queries take too long to return.

Which optimization should be made to this configuration to improve performance?

Options:

A.

Combine both of the OS and SQL Binaries disks

B.

Add a second SCSI controller for the Database.

C.

TempDB, and Logs disk Separate the Database. TempDB, and Logs onto their own disks

D.

Configure the VM to use a PCI disk controller

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Questions 30

The customer notices storage latency issues with their new Nutanix AHW cluster. The deployment includes the following components:

◦ 2 ToR switches

◦ 7 nodes

Which command should the consultant run to identify issues?

Options:

A.

manage_ovs show bridges

B.

manage_ovs show_interfaces

C.

manage_ovs show_11dp

D.

manage_ovs show_uplinks

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Questions 31

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?

Options:

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

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Questions 32

A customer has a mail server and needs Nutanix to send email notifications about errors that might occur in Prism. The following information is included under SMTP Server Settings

◦IP Address of mail server

◦Port Security Mode

◦From email address

What should the consultant set up before arriving onsite?

Options:

A.

SMTP server to allow emails from all IPs in customer network

B.

SMTP server to allow emails from Cluster VIP and CVM IP addresses

C.

SMTP to allow emails from Cluster VIP

D.

SMTP server to allow emails from Host IP addresses

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Questions 33

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?

Options:

A.

In Capacity Runway, select Optimize Resources and select all VMs that must be protected.

B.

Create a new project and assign the VMs to it to get compute and storage requirements.

C.

Create a new scenario based on a new cluster based on a VM Profile and select Recommend.

D.

Create a new Recovery policy by selecting the VM that needs to be protected and get hardware requirements.

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Questions 34

A customer wants to ensure that the Data Protection configuration using Protection Domains is fully functional.

The consultant has configured a protection domain for newly-created VMs with static IP addresses on multiple VLANs. The network administrator confirmed that the correct subnets exist at both physical sites.

After performing a failover operation, the virtual machines are turned back on but have no network access.

Which statement describes this issue?

Options:

A.

Network mappings are not configured for the Remote Site.

B.

Nutanix Guest Tools (NGT) are mandatory to use Data Protection.

C.

VirtIO drivers need to be reinstalled after a failover.

D.

Remote Virtual IP addresses are missing for the Remote Site.

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Questions 35

Refer to the exhibit.

An administrator logs in to Prism and sees the status shown in the exhibit within the Hardware Diagram section.

What should the administrator do?

Options:

A.

Resolve all alerts and re-import the disks to make sure there is no service disruption.

B.

Restart all CVMs for the cluster to check, confirm health and repartition and add the disks.

C.

Reseat all disks immediately. If this does not help, reseat the nodes.

D.

Check status of applications running on the cluster and call support

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Questions 36

An administrator needs to install prism central for their 2550 multi-cluster environment.

How should they deploy the application?

Options:

A.

Deploy a large 3-VM Prism Central instance

B.

Deploy a large 1-VM Prism Central instance.

C.

Deploy a small 3-VM Prism Central instance.

D.

Deploy a small 1-VM Prism Central instance.

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Questions 37

Refer to the exhibit.

An administrator notices a critical alert on the Metro Availability Protection Domain What is causing this alert?

Options:

A.

Metro Availability Protection domain is active on the remote site.

B.

VMware Site Recovery Manager is handling a failover event

C.

Metro Availability did not fail over and caused an outage.

D.

vSphere moved VMs to the remote container, and the VMs must be moved back.

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Questions 38

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?

Options:

A.

Remove the VMs. create a new Protection Domain, and add VMs to it

B.

Remove VMs from the Protection Domain and add them back in.

C.

Delete the Protection Domain, create a new Protection Domain, and add the VMs to it

D.

Create a new Protection Domain and add the VMs to rt.

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Questions 39

A consultant has been tasked with increasing security on a Nutanix cluster by disabling password authentication when accessing the CVM and AHV hosts and instead moving to key-based SSH.

What is the easiest way for the consultant to meet these requirements?

Options:

A.

Enable STlGs via command line on SSH to a CVM.

B.

Configure LDAP authentication through a secure server.

C.

Enable Cluster Lockdown and provide an RSA key.

D.

Restrict access with User Management in Prism.

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Questions 40

A customer buys ultimate licensing and wants to use the built-in Nutanix software encryption on their new AHV cluster. The customer needs to create three storage containers and asks the consultant to complete the process as fast as possible.

In which order should the cluster be deployed?

Options:

A.

Create Cluster -> Install License Key -> Encrypt Cluster -> Create Storage Containers

B.

Create Cluster -> Install License Key -> Create Storage Containers -> Encrypt Cluster

C.

Create Cluster -> Encrypt Cluster -> Install License Key -> Create Storage Containers

D.

Create Cluster -> Create Storage Containers -> Encrypt Cluster -> Install License Key

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Questions 41

An organization is planning an upgrade to AOS 5.15 and wants to understand which cluster products and/or services are supported for physical traffic isolation.

Which Nutanix component supports its network traffic being isolated onto its own virtual network?

Options:

A.

Volumes

B.

Objects

C.

Containers

D.

Files

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Questions 42

A customer design calls for link aggregation. Despite the consultant verifying all hosts are correctly configured for fallback per Nutanix best practices, initial testing reveals the aggregate bond fails to pass traffic and shows a status of configured.

What is the most likely cause for the bond disabling and reporting a "configured" status?

Options:

A.

The uplinks in the bond need to be turned on.

B.

The ports need to be flushed.

C.

Failed negotiation due to misconfiguration on ToR switches.

D.

The bond needs to be reconfigured for balance s_b mode.

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Questions 43

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?"

Options:

A.

1

B.

2

C.

3

D.

4

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Questions 44

A consultant has finished imaging all assigned clusters and is ready to close out the engagement

Which action is part of the Closeout Checklist?

Options:

A.

Provide an overview of Nutanix NDB.

B.

Provide an overview of Nutanix NC2.

C.

Provide an overview of Nutanix Prism Central.

D.

Provide an overview of Nutanix Self-Service.

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Questions 45

Refer to Exhibit:

A customer is preparing to expand a cluster with a consultant. The production cluster is comprised of one NX-3460-G7 and two NX-8235 G8 blocks. The running AOS version is 5.20.4.6 and Hypervisor version is ESXi 6.7 U3b. vCenter is also running a 6.7 version.

One NX-3235-G9 block will be added to that cluster (ESXI-NUTA-09 and ESXI-NUTA-10).

The consultant has verified Nutanix documentation and customer’s As-Built guide:

•NX-3060-G7 and NX-8035-G8 are hybrid HCI nodes

•ESXi 6.7 U3b is unsupported for the new G9 hardware model

•AOS 5.20.X and ESXi 6 X are end of support

•NX-3060-G7 and NX-8035-G8 hypervisors can be upgraded to the latest ESXi supported version

What actions should be taken before beginning the cluster expansion?

Options:

A.

Upgrade vCenter, AOS and ESXi to supported and recommended versions.

B.

Upgrade only AOS and ESXi to supported and recommended versions.

C.

Replace all HDDs with SSDs on the Production cluster.

D.

Prepare Foundation and the whitelist. json file to deploy ESXi 6.7 U3b on the new nodes.

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Questions 46

An administrator needs to forecast infrastructure requirements for a new program and its associated applications. Prior to the projected start of the new program, all existing applications will be decommissioned.

How should the administrator perform this task?

Options:

A.

Check the Disregard Existing Workloads radio button in the Runway scenario.

B.

Check the Disregard Existing Nodes radio button in the Runway scenario.

C.

Add up the recovered workloads and manually remove from the Runway configuration.

D.

Power down the workloads during a maintenance window and run the Capacity Runway.

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Questions 47

An administrator is using Nutanix Move to migrate a Windows VM from ESXi to AHV. Automated guest preparation is failing with an error:

Account has UAC enabled error

The administrator is using the local built-in administrator account for the Windows VM Admin approval mode must remain enabled.

What should the administrator do to continue with the migration with Nutanix Move?

Options:

A.

Use a Domain Admin account for the Windows VM

B.

Reboot the Windows VM and try the migration again

C.

Follow manual VM preparation guidelines

D.

Place Windows VM in Maintenance Mode

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Questions 48

A consultant is unable to install virtualization software on a laptop.

Which two versions of Foundation can be used to resolve this issue? (Choose two.)

Options:

A.

Foundation VM

B.

Foundation Portable

C.

Foundation Central

D.

Foundation Applet

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Questions 49

While preparing for a new four-node cluster installation, the consultant has a Tech Review Call with the customer. The hardware is as follows:

* 4 nodes in 1 Block

* 8 x 10 GbE Ports

* 4 x 1 GbE IPMI Ports

* Adequate Ethernet ports are available

* Ethernet cables are correct and available

* Adequate rack space is available

Which remaining item must be confirmed as available onsite?

Options:

A.

Crash Cart

B.

Fibre Channel switches

C.

Redundant 208v power

D.

Redundant 110v power

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Questions 50

A customer needs a 20-node cluster built. The consultant only has a 16-port flat network switch, and the customer is using VLAN tagging for the hosts and CVMs.

How should the consultant create the cluster?

Options:

A.

Set VLAN tags on all hosts and CVMs.

B.

Create the Nutanix cluster manually.

C.

Connect the cluster to the production network.

D.

Create a separate four-node cluster.

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Questions 51

The consultant is deploying a 20-node AHV cluster, as part of a Nutanix Files deployment.

How many FSVMs can the consultant deploy in this environment?

Options:

A.

16

B.

18

C.

20

D.

22

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Questions 52

As a part of a cluster deployment test plan, a customer asks the consultant for some additional performance and resiliency tests.

How should the consultant best satisfy this request?

Options:

A.

Deploy X-Ray and conduct any relevant tests.

B.

use Apache Jmeter.

C.

Run diagnostics.py directly from CVM.

D.

Leverage lometer.

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Questions 53

Refer to the exhibit.

An administrator logged into Prism Element, notices the following in the home dashboard, and showing the exhibit.

Which action should the administrator take next?

Options:

A.

Configure the fqdn for the hosts indicated

B.

Troubleshoot the zookeeper server issue

C.

Re-run NCC specifying data_resiliency_check

D.

Check the hardware page for disk failures

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Questions 54

An administrator needs to create and start five new VMs for a Data Analytics Project (OLAP). The VM Profile is as follows:

• vCPU:4

• vRAM: 64 GB

• vDisk: 1.5 TB

Each of the four nodes of the Nutanix cluster has the following:

• 24 vCPU. 20% overall usage

• 192 GB RAM, 60% overall usage

• 2xl920GBSSD

• 4x 2 TB HDD

At cluster level, there is a single RF2 container that is 30% utilized and has an extent store capacity of 13.5 TB.

Which component requires administrator attention?

Options:

A.

Physical RAM, because it is not enough to power on all of the new VMs.

B.

Physical Cores, because they are not enough to power on all of the new VMs.

C.

Storage, because the capacity is not enough to create VMs.

D.

Flash Tier because it is not enough to accommodate the workloads.

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Questions 55

An administrator is managing multiple Windows and Linux VMs connected to Nutanix Volumes. The Linux VMs are experiencing intermittent connectivity issues. The Windows VMs do not experience the same issue.

Which option should the administrator use to resolve this issue?

Options:

A.

Utilize Jumbo Frames

B.

Add additional disks to the Volume Group

C.

Set the SCSI timeout value to 60

D.

Utilize a separate subnet for the Linux VMs

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Questions 56

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

Options:

A.

192.168.5.0/24

B.

192.168.254.0/24

C.

192.168.5.0/23

D.

192.168.5.0/26

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Questions 57

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?

Options:

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.

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Questions 58

An alert about RX errors on eth2 on a node is reported in the cluster. The administrator logs in to the CVM in question, checks the ping_* files in the data/logs/syststats folder, and notices intermittent ping loss.

The node in question has the following network configuration:

Which action should be used to troubleshoot without disrupting the VMs running on this node?

Options:

A.

Replace the cable from eth2 to the switch

B.

Remove eth3 from br0-up and monitor for new alerts

C.

Check the port on the switch side for any errors

D.

Enable balance-s1b on br0-up and monitor if a problem persists

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Questions 59

An administrator recently added in 3 nodes to an existing 5 node cluster. While 1 node came with its own block, the other 2 nodes where added to an existing share. After adding the nodes, the administrator sees that the hardware tab displays the correct number of nodes, but incorrect position in the diagram tab.

What should the administrator do to resolve the issue?

Options:

A.

Check the factory_config.json for all 3 nodes

B.

SSH into CVM and perform genesis restart on each CVM

C.

SSH into the CVMs and run genesis acropolis stop; cluster start

D.

Check the factory_config. json for the two single nodes.

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Questions 60

A consultant successfully completes a Foundation using a flat switch. The consultant then works with the customer to move the cluster over to their production network. After the move, the CVMs and hypervisors can no longer communicate, which prevents the cluster from starting.

Which option should be used to resolve this issue?

Options:

A.

If the IPMI is in use, check that the IPMI can ping the default gateway over IPv6.

B.

Make sure that the IPMI and CVM VLAN is manually tagged on the Host and CVM.

C.

Verify that IPv6 Link Local and DHCP is enabled on all switch ports.

D.

If using VLANs, confirm the hypervisor/CVM VLAN is set as Native on the switch ports.

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Questions 61

An administrator needs to evaluate if the existing configuration of Protection Domains meets the specified corporate recovery policy for SQL Data. The corporate policy requires that all SQL Servers be recoverable at the DR site within 30 minutes, and must result in a maximum of 60 minutes of data loss. SQL data must be required.

The protection domain is configured as follows:

• Application consistent snapshots are enabled

• The SQL server VMs are assigned to the Protection Domain as their own Consistency Group

• The Protection Domain schedule is configured as snapshots taken every 90 minutes from 7 am until 8 pm

What must be changed to meet the required policy?

Options:

A.

Revise the schedule tc be 15 minutes

B.

Revise the schedule to be 60 minutes

C.

Revise the schedule to be 30 minutes

D.

Revise the schedule to be 45 minutes

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Questions 62

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

Options:

A.

Operations Guide

B.

Demonstration of the Support Portal

C.

Demonstration of features

D.

Handover Slides and Checklist

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Questions 63

An organization subscribes to field advisories from the Nutanix support portal. An administrator receives an email about a rare problem that could cause cluster instability and affect the entire AOS cluster. The organization is running Vmware vsphere 6.x on Nutanix.

What action should be taken to resolve this issue?

Options:

A.

Open Prism Element and select Upgrade Software to update AOS.

B.

File a ticket to Nutanix Support and provide the Field Advisory ID.

C.

Use VMware Update Manager to update the cluster.

D.

In Prism Central, select Life Cycle Management and perform LCM update.

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Questions 64

Where can the Foundation version included with an AOS bundle be found?

Options:

A.

AOS Release Notes

B.

Upgrade Paths menu

C.

Compatibility and Interoperability Matrix

D.

Field Installation Guide

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Questions 65

A consultant completes a manual cluster creation of AHV. When the consultant logs into Prism Element, critical error messages appear regarding the hypervisor and NTP.

What component or setting, if misconfigured, would cause these errors?

Options:

A.

Cluster name

B.

Name Server

C.

Cluster Virtual IP

D.

Data Services IP

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Questions 66

After installation, network ports are properly configured with the default active-backup bonding.

One 10GbE port goes to switch 1. Another 10GbE port goes to switch 2. A consultant tests failover by manually pulling one of the cables and notices it is taking too much time to failover, which is causing excessive packet loss.

What should the consultant enable to resolve this issue?

Options:

A.

LACP on switch

B.

PAgP

C.

Portfast

D.

Jumbo frames

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Questions 67

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?

Options:

A.

During the Foundation Process

B.

While conducting the Tech Review Call

C.

Upon arriving on-site

D.

When reviewing the Statement of Work (SOW)

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Questions 68

During the Foundation imaging process, nodes are successfully imaged, but the cluster creation fails.

Which log should the consultant review to determine the cause?

Options:

A.

service.log

B.

foundation.out

C.

first_boot.log

D.

genesis.out

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Questions 69

A customer needs to meet the following requirements for their business critical application:

* SQL Servers must be on specific hosts to lower licensing costs.

* Oracle RAC servers must be on separate hosts for licensing reasons

Which policy or policies should be implemented to meet these requirements?

Options:

A.

Configure VM-VM anti-affinity policy.

B.

Configure VM-VM affinity policy.

C.

Configure both VM-Host and VM-VM affinity policy.

D.

Configure VM-Host affinity policy.

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Questions 70

Refer to the exhibit.

An administrator is commissioning a Nutanix Enterprise Cloud. Once the user VMs have been deployed and are running, the administrator finds that VMs on the same host are able to communicate, but are unable to communicate between hosts.

What must be changed to enable full inter-VM communications?

Options:

A.

Change the network the VMs are connected to

B.

Change the spanning-tree port type on the switch

C.

The VMs need to have static IP addresses

D.

Update the switch to specifically allow VLAN 15

Questions 71

A customer has two mission-critical applications and needs to have them backed up to a remote location. The remote location is connected using a leased line and has an average latency of 7 ms.

Which Nutanix technology will provide the shortest RPO possible?

Options:

A.

NearSync

B.

Leap

C.

Metro Availability

D.

Asyn&DR

Questions 72

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?

Options:

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.

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Questions 73

A consultant asks a customer to verify the ToR Switch data port configuration was done according to Nutanix best practices. The switch configuration must simplify future deployments and expansions.

Which two configuration actions will satisfy this requirement? (Choose two.)

Options:

A.

Disable multicast and broadcast flood optimizations.

B.

Configure the CVM and hypervisor host VLAN as the native.

C.

Use a tagged VLAN for the CVM and hypervisor hosts.

D.

Configure the connected switch ports as access.

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Questions 74

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

• Shares contain user profile directories

• DFS-N will be used

How should the administrator create target shares for this migration?

Options:

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.

Questions 75

A customer has a four-node cluster and is using Volume Groups to provide storage services to a SQL cluster.

In the event of a CVM failure in the cluster, what is the expected IO path of the volume group’s iSCSI targets?

Options:

A.

vDisk directed at failure CVM are redirected to Data Services IP until CVM is reconnected

B.

vDisk directed to CVM that failed to disconnect and will not reconnect without manual intervention

C.

vDisk directed to failed CVM are redirected to another CVM and automatically reconnect

D.

vDisk directed at failed CVM will disconnect and reconnect when the failed CVM comes back online

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Questions 76

A customer would like to re-image an existing cluster. The Foundation Applet and Foundation VM is unavailable to them.

How can the consultant access Foundation-as-a-Service (FaaS)?

Options:

A.

Through :9443

B.

Through :8000

C.

Through :9443

D.

Through :8000

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Questions 77

An administrator is deploying an application that requires maximum I/O throughput for scratch data. The administrator is concerned that the throughput requirement is greater than what can be provided by a single cluster node.

What should the administrator do to meet this requirement?

Options:

A.

Create a volume group with several virtual disks and attach to the VM

B.

Create a volume group with one virtual disk attached to the VM

C.

Create a virtual disk attached to the VM's PCI interface

D.

Create several virtual disks attached to the VM's virtual SCSI controller

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Questions 78

A customer wants to run SAP HANA on a Nutanix cluster with the following characteristics:

• AHV nodes

• SAP HANA version 2

• Production database files

Which configuration should be recommended to the customer?

Options:

A.

Start with a cluster containing three or more nodes

B.

Enable only compression for the container that contains the Production database

C.

Do not enable compression, deduplication. or erasure coding on the storage container

D.

Plate the SAP HANA Database on the same socket as CVM

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Questions 79

A customer has a Nutanix cluster with 10Gb connectivity via switch fabric extenders. The administrator receives NCC health check errors of latency greater than 200ms.

Which action should the administrator take to resolve the NCC errors?

Options:

A.

Replace the switch fabric extenders with 10G line rate switches

B.

Upgrade NCC and increase the CVM memory by 4Gb

C.

Add 2 additional 10G uplinks from the switch fabric extenders per node

D.

Upgrade NCC and increase the vCPU of the CVM

Questions 80

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?

Options:

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.

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Questions 81

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?

Options:

A.

/home/nutanix/foundation/log

B.

~/data/logs/foundation.out

C.

foundation.app/contents/resouces/log

D.

~/data/logs/foundation

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Questions 82

How should a consultant validate the installed version of an NVIDIA driver in a Nutanix VDI deployment?

Options:

A.

[root@ahvrpm qa I grep i nvidia

B.

nutanix@cvm~$ rpm -qa I grep -i nvidia

C.

adminGcvm^S rpm -qa I grep i nvidia

D.

[rootQesxi -)# rpm -qa I grep -i nvidia

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Questions 83

Refer to the exhibit.

On a four-node NX-3460 cluster, two 10G NiCs are connected to redundant Cisco ToR 5K switches as shown in the first exhibit Port On a four-node NX-3460 cluster, two 10G NICs are connected to redundant Cisco TOR Sk switches as shown in the fist exthibt. Port failover must be tested.

The network configuration output from the CVM is shown in the second exhibit. To test fallover, a shut command is executed on the switchport that connects the node to the 5k1 switch.

Refer to the exhibit.

Options:

A.

Active link is disconnected. Passive link takes over.

B.

Passive link is disconnected. Active link takes over.

C.

Active link takes over. HA Failover takes place.

D.

Passive link takes over. HA Failover takes place.

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Questions 84

A customer has an ESXi cluster with two 10GbE NICs on each node and the following requirements.

◦Solution must follow Nutanix Best Practices

◦Network configuration should be redundant

◦A vSphere Distributed Switch will be utilized

Which load balancing configuration should be used?

Options:

A.

Route based on IP hash

B.

Route based on source MAC hash

C.

Route based on originating port ID

D.

Route based on physical NIC load

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Questions 85

An organizations Nutanix Cluster is based on VMware vSphere. The cluster is configured to download software updates automatically. The administration needs to verify and eventually upgrade VMware hypervisor via Prism Ul.

After logging in to Prism, the administrator receives the message shown:

No available versions for upgrade

What is causing the current state?

Options:

A.

VMware support has expired, so downloads are not available.

B.

vSphere binaries need to be manually uploaded.

C.

The environment is running the latest vSphere version, so no update is required.

D.

The cluster is unable to connect to reIease-api.nutanix-ccm:8D.

Questions 86

A guest VM is reported to have poor storage performance. It has an I/O profile of 80% read. 20% write, and the HDDs form more than 50% of the read source.

What should an administrator do to resolve this issue?

Options:

A.

Increase SSD capacity

B.

Increase the OPLOG

C.

Increase the write cache

D.

Use HDDs with higher RPM

Questions 87

An administrator needs to initiate a new VDI project within a couple of months. Prism Central reports there are no storage resources to accommodate such workloads.

The administrator sees many powered-off VMs and has the authority to delete test VMs powered off at least for 30 days. Test VMs belong to the Test category.

Using Prism Central, which steps are required to identify the correct VMs to be deleted?

Options:

A.

Use Capacity Runway to filter by Test and Powered-off VMs

B.

Filter VMs list, choose Test category and Inactive under Efficiency

C.

Create a new Scenario selecting Test VMs. filter by uptime

D.

Create a new Project selecting Test VMs, sorting by power state

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Questions 88

An administrator is updating disk firmware using LCM and receives the following message:

“there have been 10 or more cluster services restarts within 15 minutes in the Controller VM”

The message appears as each drive is upgraded.

What is the reason this message is being generated?

Options:

A.

A node has been rebalanced

B.

A drive has been reformatted

C.

A node has been rebooted

D.

A drive has been ejected

Questions 89

A consultant needs to image nodes that cannot be discovered with the Foundation VM

The nodes are connected to a flat stitch and

are already part of a Nutanix cluster.

What course of action would result in Foundation success?

Options:

A.

Use the customer's top of rack switch.

B.

Buy a new flat switch.

C.

Bare metal image the nodes.

D.

Change the physical connections.

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Questions 90

A consultant is completing final network failover testing on a recently deployed AHV cluster.

The cluster consists of the following:

•Three nodes

•Two uplinks connected to two switches

•Supported SFPs

The consultant removed one SFP+ out of each node. Two of the nodes (Hostl I Host2) failed over to the backup NIC correctly without any interruption but have lost communication with the third node (Host 3) hypervisor/CVM. Inserting the original SFP+ back into the problematic node allowed the network to be connected and the two healthy nodes could communicate successfully again.

manage_ovs showjnterfaces output

manage_ovs showjinterfaces output:

name mode link speed

cthO 10000 True 10000

ethl 10000 False None

eth2 10000 True 10000

eth3 10000 False None

manage_ovs show.uplinks output:

Bridge: brO

Bond: brO-up

bond_mode: active-backup

interfaces: ethl ethO

lacp: off

lacp-fa I 1 back: false

lacp_speed: slow

What should the consultant validate first?

Options:

A.

Validate NIC card on node is seated properly.

B.

Validate that the correct interfaces are included in the bridge.

C.

Validate the customer has configured all their switch ports identically.

D.

Validate the SFP+ is fully plugged into the node and switch.

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Exam Code: NCS-Core
Exam Name: Nutanix Certified Services Core Infrastructure Professional
Last Update: Dec 22, 2024
Questions: 302

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