Nutanix Nutanix Certifications NCS-CORE Questions & Answers

• Question 151:

  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 isbeing generated?

  A. A node has been rebalanced

  B. A drive has been reformatted

  C. A node has been rebooted

  D. A drive has been ejected

  Correct Answer: C

  Ref:https://portal.nutanix.com/page/documents/kbs/details?targetId=kA032000000TT8DCA W

• Question 152:

  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?

  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.

  Correct Answer: B

• Question 153:

  An administrator receives an alert in Prism indicating that interface eth2, on an AHV host is receiving many CRC errors. Aftertogging into the problematic host, the following command is run to show the indicated output: What is causing this issue?

  

  A. Incorrect link speeds on the switch

  B. The interface is incorrectly configured with Jumbo Frames

  C. A misconfigured bond

  D. A physical layer network problem

  Correct Answer: B

  Explanation: Ref: rx_crc_errors are caused either by faults in layer 1 (in the past, we have seen failed twinax cables and incorrect types of fibre being used), or issues with jumbo frames on the network. In an environment with 10Gig switches that use cut-through forwarding (Cisco Nexus, Arista, Cisco devices using IOS default to Store and Forward switching), any packets that come into the switch will get forwarded out the destination interface once the switch has read the destination MAC address. If that packet has an MTU over what is configured on the interface, it will cut off the packet at the designated MTU, causing the server to receive a malformed packet, which will throw a CRC error. If you have a layer 1 issue, you will see rx_crc_errors, not on all but one or two nodes.

• Question 154:

  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?

  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.

  Correct Answer: A

• Question 155:

  In a 20-node ESXi deployment, the customer needs additional resiliency to survive the loss of two nodes concurrently. Which configuration should the consultant use to ensure that the appropriate resources are available?

  A. Storage reservation for 10%; HA admission control for 10%, cluster RF3

  B. Storage reservation for 5%; HA admission control for 5%, cluster RF2

  C. Storage reservation for 5%; HA admission control for 5%, cluster RF3

  D. Storage reservation for 10%; HA admission control for 10%, cluster RF2

  Correct Answer: A

• Question 156:

  A VM does not have enough resources for the demand,which leads to performance bottlenecks. The VM is exhibiting one or more of following baseline values, based on the past 30 days:

  CPU usage>; 90% (moderate), 95% (high)

  CPU ready time>; 5%, 10%

  Memory usage>; 90%, 95%

  Memory swap rate>; 0Kbps (no moderate value)

  Which type of VM is being described?

  A. Constrained VM

  B. Bully VM

  C. Inactive VM

  D. Over-provisioned VM

  Correct Answer: A

• Question 157:

  An administrator is using Nutanix Move to migrate aWindows 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 theadministrator do to continue with the migration with Nutanix Move?

  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

  Correct Answer: C

  Explanation: https://next.nutanix.com/move-application-migration-19/nutanix-xtract- validation-failed-user-must-belong-in-a-group-with-restore-files-and-directories-security- policy-31303

  

• Question 158:

  After deploying an AHV cluster connected to Cisco Nexus 9k switches, unexpected network behavior is observed. The consultant needs to rule out physical network mis- cabling without returning to the datacenter. Which command from the host should the consultant run?

  A. show lldp neighbors

  B. show cdp neighbors

  C. show interfaces

  D. lldpctl

  Correct Answer: D

• Question 159:

  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.)

  A. Foundation VM

  B. Foundation Portable

  C. Foundation Central

  D. Foundation Applet

  Correct Answer: BD

• Question 160:

  An organization is running a Nutanix Cluster based on AOS 5.10.x and VMware vSphere 6.7. Currently, the CVM network is segmented and Storage only nodes not present. A new security project based on NSX is coming. VMware Distributed Virtual Switches are required. The administrator needs to prepare the environment for the new project. Which step should the administrator use to initiate the project?

  A. Enable Nutanix Flow at the Prism Central Level

  B. Manually disable CVM network Segmentation

  C. Convert storage only nodes into vSphere nodes

  D. Enable Jumbo Frames to accommodate network frames

  Correct Answer: D