Nutanix Nutanix Certifications NCS-CORE Questions & Answers

• Question 21:

  In a Nutanix cluster, a Protection Domain contains 50 entities that are replicated to a remote Single Node Replication Target.

  The current schedule configuration is as follows:

  Repeat every 6 hours

  Local Retention Policy 1 Remote Retention Policy 8 Starting time 12 am

  At 8 am on Monday, the administrator discovers that a protected VM is corrupted. The latest good state was Sunday 2 pm. The administrator needs to maintain current protection. Which strategy should the administrator use to meet these requirements?

  A. From the Remote site, activate the Protection Domain, then re-protect the entity.

  B. From the Remote site, restore the VM from the local snapshot by selecting the correct snapshot

  C. From the local site, retrieve the correct remote snapshot, then restore the VM locally.

  D. From the local site, restore the VM from the local snapshot by selecting the correct snapshot.

  Correct Answer: C

• Question 22:

  Refer to the exhibit.

  

  A Nutanix host is connected as shown in the exhibit with br0-up set to active/backup. Physical Switch 1 experiences a power outage causing br0-up to failover to using eth2. The CVM and host become inaccessible. User VMs restart on other hosts in the cluster, which causes a disruption to those VMs.

  Which configuration issue likely caused this outage?

  A. Bridge br0-up should be configured to use balance-tcp rather than active/backup.

  B. The CVM should have eth1 connected to the OVS.

  C. The upstream port for eth2 is missing a VLAN.

  D. The user VMs only have one NIC

  Correct Answer: C

  Ref:https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2071-AHV- Networking:top_ahv_networking_best_practices.html

• Question 23:

  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.)

  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.

  Correct Answer: BC

  Explanation: Ref:https://portal.nutanix.com/page/documents/details?targetId=Prism- Central-Guide-Prism-v5_18:mul-storage-qos-pc-c.html

• Question 24:

  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?

  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

  Correct Answer: C

  Explanation: Ref:https://kb.vmware.com/s/article/1009465

• Question 25:

  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.

  Native VLAN set to default Ports trucked to allow all necessary VLANs

  B.

  Native VLAN set to default Ports in access mode to allow all necessary VLANs

  C.

  Native VLAN set to 30 Ports Trunked to allow all necessary VLANs

  D.

  Native VLAN set to 30 Ports in access mode to allow all necessary VLANs

  Correct Answer: A

• Question 26:

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

  A. Guest OS

  B. AOS

  C. Firmware

  D. Hypervisor

  Correct Answer: BD

• Question 27:

  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?

  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

  Correct Answer: C

• Question 28:

  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.)

  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.

  Correct Answer: ABC

• Question 29:

  An administrator needs to make sure an RF3 cluster can survive a failure of two complete racks without negatively affecting performance. The current cluster configuration consists of the following:

  30 All Flash Nodes: distributed 10 nodes per rack across three 42U racks Each node is configured with 20TB usable storage all flash (Cluster Total 600TB Usable) Current cluster utilization is 500TB storage Storage containers have Erasure Coding enabled

  Which configuration changes should be made to make sure the cluster meets the requirements?

  A. Expand the cluster to 50 nodes distributed evenly across 5 racks

  B. Expand the cluster to 48 nodes distributed evenly across 6 racks

  C. Expand the cluster to 60 nodes distributed evenly across 6 racks

  D. Expand the cluster to 40 nodes distributed evenly across 5 racks

  Correct Answer: C

  Explanation: Ref:https://portal.nutanix.com/page/documents/details?targetId=Web- Console-Guide-Prism-v5_17:arc-configure-fault-tolerance-rack-prism-c.html

  

• Question 30:

  Refer to the exhibit.

  

  A consultant is installing AOS 5.10 and ESXi 6.5 on three nodes. During the Foundation process, ESXi 6.5 is not available as one of the choices for hypervisor. Which solution should the consultant use?

  A. Upload ESXi image to /home/Nutanix/foundation/nos/hypervisor/esx.

  B. Restart Foundation VM and refresh Foundation page.

  C. Update the Foundation whitelist from the support portal.

  D. Upload ESXi image to /home/Nutanix/foundation/isos/hypervisor/esx.

  Correct Answer: D