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Nutanix NCS-Core Nutanix Certified Services Core Infrastructure Professional Exam Practice Test

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Total 191 questions

Nutanix Certified Services Core Infrastructure Professional Questions and Answers

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Question 1

An administrator inherits a new Nutanix environment and logs in to a CVM to check the network configuration. The configuration is as follows:

Which action should the administrator take to improve network performance?

Options:

A.

Configure VLAN tagging both on br0 and br1 and their physical interfaces.

B.

Add eth0 and eth1 to the br0-up bond

C.

Configure balance-sib or balance-tcp mode for br0-up if switch configuration allows

D.

Remove one 10 Gbs interface from br0-up to make sure all 10 Gbs can be used.

Question 2

While trying to upgrade AOS in a cluster, a consultant receives a warning message that there are two powered-on VMs that need to be powered off for the upgrade to proceed.

What would cause this warning to be issued?

Options:

A.

Upgrading a single-node cluster requires the VMs to be shut down.

B.

Upgrading a two-node cluster requires the VMs to be shut down.

C.

There are not enough resources left in the single-node cluster.

D.

There are not enough resources left in the two-node cluster.

Question 3

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

Question 4

Anadministrator 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?

Options:

A.

HDLC

B.

SUP

C.

LACP

D.

LLDP

Question 5

An existing Nutanix customer has several clusters in production and is adding a new cluster. The customer wants to create an AHV cluster that has already been racked and powered on remotely, with the factory image, using Prism Central.

Which step should the consultant take next?

Options:

A.

Build the cluster with the Foundation Applet

B.

Build the cluster with the Foundation VM.

C.

Bare metal image the nodes with the Foundation VM.

D.

Build the cluster with Foundation Central.

Question 6

A Nutanix cluster is deployed with the following configuration:

• Three four-nodeblocks (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

Question 7

The following alert appears on the file server alerts tab in the file server dashboard:

Which two events can generate this alert? (choose two)

Options:

A.

A three-node dusterhosting the file server is undergoing AOS upgrade.

B.

A node failed in a three-node cluster.

C.

A Nutanix file with four hie server VMs is deployed on a three-node duster.

D.

A node is set to the maintenance mode in a three node cluster.

Question 8

An administrator configures authentication in Prism Central (PC) for the NTNX-Admins group. Users report that they are unable to log in. The administrator confirms that the Active Directory (AD) settings in PC are correct.

Which condition could result in this behavior?

Options:

A.

A role mapping needs to be associated with the AD group.

B.

The users must be added to the Domain Admins AD group.

C.

The Local authentication type must also be selected in PC.

D.

A client chap certificate must also be added in PC.

Question 9

After finishing foundation on an AHV cluster, a consultant is preparing to plug into the customer network given the following set of requirements:

* All network traffic on trunks is tagged

* Customer is using LACP

* A native VLAN is not in use

Which set of commands should the consultant use to ensure cluster connectivity on customer equipment?

Options:

A.

change_cvm_vlan 0

ovs-vsctl set port br0 tag=0

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

B.

change_cvm_vlan 10

ovs-vsctl set port br0 tag=10

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

C.

change_cvm_vlan 0

ovs~vsctl set port br0 tag=0

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

D.

change_cvm_vlan 10

ovs-vsctl set port br0 tag=10

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

Question 10

After a consultant runs Foundation, the imaging process fails.

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

Options:

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

Question 11

A three-node cluster has a Nutanix Files instance with three FSVMs.

What happens after a node failure?

Options:

A.

The affected FSVMwill get live-migrated to another node.

B.

The affected FSVM will not be restarted on another node due to its agent VM setting.

C.

The affected FSVM will not be restarted on another node due to its VM-to-VM anti-affinity settings.

D.

The affected FSVM willbe restarted on another node.

Question 12

A customer has a G6 AHV cluster with 4x10GbE NICs on each node and the following configuration:

* Networking is set to default

* Only two NICs are connected

The customer receives the following critical message:

The NIC is disconnected from the switch, or the switchport is failing.

What should the consultant verify to resolve the issue?

Options:

A.

The NICs are configured for active-backup.

B.

The VLANs are configured correctly on the switch or tagged on the cluster.

C.

The other two 10GbE connections are removed from the default bond.

D.

The NICs are connected for balance-slb.

Question 13

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.

Question 14

A consultant creates an AHV cluster and connects the Intel X550T NICs to the top of rack switch using Twinax cables. The activity and link lights are green. The cluster cannot communicate over the 10GbE link.

What is the first command the consultant should perform to troubleshoot the issue?

Options:

A.

manage_ovs show_bridges

B.

manage_ovs show_interfaces

C.

manage_ovs update_uplinks

D.

manage_ovs show_uplinks

Question 15

Refer to the exhibits.

A consultant is trying to test port failover on the node shown in the first exhibit. A continuous ping test is performed to the host. The consultant shuts down one of the links, after which the host ping request times out. The consultant tries to troubleshoot the issue with the customer and sees the information shown in the second exhibit on their Cisco Switches:

What is causing the issue?

Options:

A.

There is a Native VLAN mismatch on the switchport.

B.

The wrong VLAN is tagged on the host.

C.

Bad SPF+ cables are on the active interface.

D.

PortFast is not enabled on the port connected to the host.

Question 16

An administrator receives reports that VDI desktop performance in an 8-nodeNutanix 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.

Question 17

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.)

Options:

A.

192.168.5.253

B.

192.168.5.2

C.

192.168.5.254

D.

192.168.5.1

Question 18

A systems administrator configures a protection domain replication between two Nutanix clusters. After the first successful replication , the administrator tests DR by clicking activate on the remote cluster.

While VMs are active on the remote cluster, the protection domain is marked as active on both clusters.

What steps are required to return both clusters to their original state?

Options:

A.

1. On the remote site, deactivate the Protection Domain using ncli

2. On the primary site, select theProtection Domain and dick migrate

B.

1. On the remote site, promote the Protection Domain

2. On the primary site, change the Protection Domain state from Decoupled to Disabled

3 Enable the original primary site as remote site

C.

1. On the prima7 site,suspend replications

2. On the remote site, deactivate the Protection Domain using ncli

3. On the remote site, migrate the protection domain back to the primary site

D.

1 On the remote site, restore the snapshots from the Protection Domain

2. On the remote site, select the Protection Domain and migrate to the primary site

Question 19

A consultant is imaging a Nutanix cluster with VMware ESXi. Foundation returns an error that the media is not a supported ISO. The consultant checks the whitelist file in Foundation and confirms that the version of the ISO is not listed.

Which three actions should the consultant take to resolve this issue? (Choose three.)

Options:

A.

Replace and save whitelist file in Foundation

B.

Obtain the MD5 checksum of the ISO and confirm MD5 checksum of ISO is listed.

C.

Download the iso_whitelist.json from the Support portal.

D.

Edit the whitelist file in Foundation.

E.

Restart the imaging process in Foundation.

Question 20

An administrator wants to utilize Network Visualization to monitor the physical and logical network on the Nutanix cluster. The first-hop switch has LLDP enabled. The network switch informationis still not being displayed.

What is causing this problem?

Options:

A.

The ISL between switches is not configured.

B.

SNMP is not configured properly.

C.

br0 and br1 are not defined.

D.

The cluster is using RDMA-enabled NICs.

Question 21

Refer to the exhibit.

A system administrator is using Range-Autofill tool to assign IP addresses to setup a multi-block cluster based on the following configuration:

Which additional changes must be made during the Foundation process to configure the cluster correctly?

Options:

A.

Change host names

B.

Reorder block serial

C.

Change IP address

D.

Reorder blocks

Question 22

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.)

Options:

A.

Confirm that the NTP servers are reachable from the CVMs.

B.

Restart genesis on all CVMs.

C.

On a CVM. run the command a Hash ntpq -pn.

D.

Restart the chronosservice on all CVMs.

Question 23

What reference materials should be provided to the customer during the Knowledge Transfer?

Options:

A.

Questionnaire, technical slides and checklist, links to documentation and resources

B.

As-Built Guide, technical slides and checklist, Network Diagram

C.

As-Built Guide, Project Plan, links to documentation and resources

D.

As-Built Guide, technical slides and checklist, links to documentation and resources

Question 24

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

Question 25

A consultant is installing Nutanix AOS on Cisco UCS.

Which method should be used to install AOS on UCS hardware platforms?

Options:

A.

Foundation Central

B.

Foundation Applet

C.

Foundation VM

D.

Foundation as a Service

Question 26

A consultant is deploying a two-node cluster at a remote branch office.

Which component must be available to complete cluster configuration?

Options:

A.

Prism Central

B.

Witness VM

C.

Remote Site

D.

Protection Domain

Question 27

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

Question 28

Refer to the exhibit.

An administrator receive the warningmassages shown in the exhibit while validating cluster conversion from EXSi to AHV.

What should the administrator do to address this warning in v Center Server?

Options:

A.

Keep active adapters od different speeds as active standby

B.

Remove adapters that are active but not homogeneous.

C.

Keep homogeneous adapter as active and standby

D.

Remove the standby adapters under Teaming and Failover.

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Total 191 questions