NCS-Core Exam Questions

Total 150 Questions

Last Updated Exam : 16-Dec-2024

What must be set to enable node discovery when using Foundation VM?


A. Host-only Adapter


B. Bridged Adapter


C. Network Address Translation


D. Internet Access





B.
  Bridged Adapter

Explanation: For enabling node discovery when using the Foundation VM, the network adapter of the Foundation VM must be set to a Bridged Adapter. This configuration allows the VM to appear as a separate device on the same physical network as the host machine, making it possible for the Foundation VM to communicate directly with the nodes that are also connected to the same network. This is essential for node discovery and subsequent imaging operations performed by the Foundation tool. References: Nutanix Foundation Guide, Nutanix Networking Best Practices.

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?


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.





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

An administrator needs to replace an aging SAN and move to a hyper-converged infrastructure. The existing environment consists of the following hosts that are connected to the SAN:

• 5xAIX hosts
• 3x Hyper-V hosts
• 9xESXi hosts
• 2x physical SQL Clusters (Windows Server 2012R2 hosts)

After deploying a Nutanix AHV cluster, which two actions should the administrator take to meet the requirements? (Choose two.)


A. Deploy Volumes to support the AIX and SQL workloads.


B. Migrate the ESXI workloads to AHV using Move.


C. Deploy Files to support the AIX hosts.


D. Migrate the ESXi and Hyper-V workloads using Move.





A.
  Deploy Volumes to support the AIX and SQL workloads.

D.
  Migrate the ESXi and Hyper-V workloads using Move.

An administrator receives reports about a Nutanix environment. The investigation finds the following;

• VMs are experiencing very high latency
• Each node is equipped with a single SSD, utilized at 95%
• Each node is equipped with three HDDs, utilized at 40%

Why are the guest VMs experiencing high latency?


A. CVMs are overwhelmed by disk balancing operations.


B. All VM write operations are going to HDD.


C. All VM read operations are coming from HDD.


D. VMs are unable to perform write operations.





C.
  All VM read operations are coming from HDD.

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. 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 chronos service on all CVMs.





A.
  Confirm that the NTP servers are reachable from the CVMs.

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

An administrator is deploying Nutanix Files 3.5 and needs to configure the sizing of the FSVMs for an increased number of concurrent SMB connections over the default 750. What should the administrator do?


A. Deploy the Files VMs. power down the three FSVMs. change the CPU and RAM via Prism, and then power the three FSVMs back up


B. During installation, click Customize on the File Server Installation screen, change the number of connections, and finish the installation


C. Complete the default installation change the CPU and RAM m Prism, and then log into the File Server dashboard and change the Filer Server Properties


D. During installation, input the correct number of connections in the File Server Installation screen and complete the installation





B.
  During installation, click Customize on the File Server Installation screen, change the number of connections, and finish the installation

An administrator of a Nutanix Enterprise Cloud has microsegmentation enabled and a firewall VM installed. The security team notifies the administrator that one of the VMs hosted in the environment has been exhibiting suspect network activity. The administrator wants to isolate the VM from the production network, but must still be able to access it to perform diagnostics.
What should the administrator do to meet the requirement?


A. Disable the vNIC on the affected VM


B. Quarantine the VM using the Forensic Method


C. Create a firewall rule that blocks VM traffic but permits diagnostic access


D. Create a security policy with a service chain directing that VMs traffic to the firewall VM





B.
  Quarantine the VM using the Forensic Method

A consultant completes a new cluster installation and tries to update the firmware using LCM. The update fails with the following. operation failed, Reason: Failed to run LCM operation, error: ReadError('not a grip file',). Which log should the consultant view to get more info?


A. genesis.out


B. zookeeper.out


C. janus.out


D. athena.out





A.
  genesis.out

A three-node cluster has a Nutanix Files instance with three FSVMs. What happens after a node failure?


A. The affected FSVM will 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 will be restarted on another node.





D.
  The affected FSVM will be restarted on another node.

An administrator needs to relocate an AHV cluster to a new datacenter during a maintenance window. The cluster will use the same IPs in the new datacenter. Which two steps should be taken to prepare for this task? (Choose two.)


A. Stop all Nutanix Files clusters


B. Relocate the linked LDAP servers


C. Shut down all user VMs in the cluster


D. Reconfigure IPMI for the new datacenter





A.
  Stop all Nutanix Files clusters

C.
  Shut down all user VMs in the cluster


Page 3 out of 15 Pages
Previous