Nutanix NCS-Core Exam Practice Test Instant Access

Question 1

A consultant deploys a Nutanix cluster with AOS and ESXi. The cluster is managed by a vCenter server.

After installation, what should the consultant do to ensure the cluster will support network segmentation?

AConnect both CVM eth0 and eth2 interfaces to vSwitchNutanix.

BManually assign an IP address to the CVM eth2 interface.

CConnect both CVM eth0 and eth2 interfaces to the assigned portgroups.

DAdd another vSwitch to the cluster.

Answer : C

After deploying a Nutanix cluster with AOS and ESXi managed by a vCenter server, the consultant should ensure that both CVM eth0 and eth2 interfaces are connected to the assigned portgroups on the standard or distributed switch. This setup allows for network segmentation and proper traffic isolation, which is crucial for maintaining network security and efficiency in a virtualized environment. Reference: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

Question 2

A consultant installs a new AHV cluster and moves the cluster into the customer's environment. Alter the move, the consultants notice that traffic is not being balanced across the physical NICs. The ToR switches have been configured with LACP.

Within Prism Element, which AHV network option should be set to resolve the issue?

AActive-Backup

BActive-Active

CNo Uplink Bond

DActive-Active with MAC Pinning

Answer : B

In a situation where traffic is not being balanced across the physical NICs and the Top-of-Rack (ToR) switches have been configured with LACP (Link Aggregation Control Protocol), the appropriate AHV network configuration to resolve this issue within Prism Element is 'Active-Active.' This setting enables both NICs to actively handle traffic, which, combined with LACP, allows for load balancing and redundancy, effectively utilizing all available network paths. This setup ensures that traffic is spread evenly across the physical NICs, maximizing network throughput and resilience.

Nutanix Prism User Guide

Nutanix AHV Administration Guide

In a scenario where a new AHV cluster is installed and the traffic is not being balanced across the physical NICs despite the ToR switches being configured with LACP, the appropriate network option to set within Prism Element is Active-Active. This configuration allows for a traffic-hashing algorithm, such as balance-TCP, to split traffic between multiple links in an active-active fashion.Since the uplinks appear as a single L2 link, the algorithm can balance the traffic among bond members without any regard for switch MAC address tables1.

Nutanix Community: AHV Networking | Enable, Disable and Verify LACP1

Nutanix Support & Insights: Layer 2 Network Management2

Nutanix Support & Insights: Enabling LAG and LACP on the ToR Switch (AHV Only)

Question 3

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

ATechnical Checklist

BTechnical Handoff Slides

CSupport portal

DAs-Built Guide

Answer : B

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. Reference: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

Question 4

A consultant needs to upgrade the ESXi hosts on a Nutanix cluster from version 6.7 to 7.0. vSphere DRS and wMoton are working properly. The consultant needs to use One-Click Upgrade.

Which setting should be verified by the consultant?

AvSphere HA is enabled.

BNutanix Prism HA is enabled.

CvSphere DRS Automation level is set to Conservative.

DDRS automation level on all CVMs is disabled.

Answer : A

When upgrading ESXi hosts on a Nutanix cluster using One-Click Upgrade, it is crucial to verify that vSphere HA (High Availability) is enabled. This setting ensures that in the event of host failure during the upgrade process, VMs will be automatically restarted on other hosts in the cluster, maintaining availability and minimizing disruption. Verifying this setting is essential to ensure the resilience of the environment during the upgrade.

VMware vSphere Upgrade Documentation

Nutanix Upgrade Guide

Question 5

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?

ASerial # of Block

BIPMI MAC Address

CLAN MAC Address

DSerial # of Node

Answer : B

When using the Foundation tool for bare metal imaging of Nutanix nodes and dynamic discovery is not possible, the consultant needs the IPMI MAC Address of the nodes. This address is used to identify each node uniquely through its IPMI for remote management purposes, allowing the Foundation VM to interact directly with each node's base management controller (BMC) for the imaging process. Reference: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

Question 6

Refer to the exhibit.

A consultant migrated multiple VMs to a new cluster. VMs were previously in VLAN 10.

Why can the VMs no longer communicate on their network?

AThe VNIC type should be set to VMXNET2.

BThe GuestOS firewall is blocking traffic in the new cluster.

CThe VLAN ID is incorrect.

DStatic IP addresses have not been assigned to the new VMs.

Answer : C

In scenarios where VMs have been migrated to a new cluster and they were previously on VLAN 10 but can no longer communicate, the most likely cause is that the VLAN ID setting on the virtual network interface cards (VNICs) of the VMs does not match the VLAN configuration of the new network. Ensuring that the VLAN IDs are correctly set to match the network configuration of the new cluster is essential for proper network communication. Reference:

Nutanix University - NCS-Core 6.8 Learning Path

The Nutanix Bible, Networking chapter (https://www.nutanixbible.com/)

Question 7

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?

Amanage_ovs show bridges

Bmanage_ovs show_interfaces

Cmanage_ovs show_11dp

Dmanage_ovs show_uplinks

Answer : B

To troubleshoot storage latency issues in a Nutanix cluster, it is vital to examine the state and performance of the network interfaces. The command manage_ovs show_interfaces provides comprehensive details about each interface's status, including any errors or drops that could contribute to network-related latency. This information is crucial for identifying problematic nodes or interfaces that may be causing storage access delays. This command effectively presents the operational status of network interfaces, which can help pinpoint issues directly affecting storage performance.

Nutanix Command Reference Guide: https://portal.nutanix.com

Nutanix University Troubleshooting Network Issues: https://www.nutanix.com/support-services/training-certification

Nutanix NCS-Core Nutanix Certified Services Core Infrastructure Professional v6.8 Exam Practice Test