Nutanix Nutanix Certifications NCM-MCI Questions & Answers

• Question 1:

  A customer has Metro Availability configured in Automatic Resume Mode between Site A and Site B What happens to VMs if Primary Site A has full network failure?

  A. Automatic protection domain promotion in Site B. VMs automatically restart in Site B

  B. VMs continue to run on Site A following an automatic disable of protection domains.

  C. An administrator must unwitness in Site B and promote protection domains in Site B for VMs to restart

  D. An administrator must promote protection domains in Site B for VMs to restart.

  Correct Answer: D

  Ref: https://support-portal.nutanix.com/page/documents/details/?targetId=Web-Console-Guide-Prism-v55:sto-metro-availability-witness-c.html

• Question 2:

  A VM is exhibiting one or more of the following baseline values based on the past 30 days:

  1.

  CPU usage<; 20%

  2.

  CPU ready time<; 5%

  3.

  Memory usage<; 50% (moderately) or<; 20% (severely)

  4.

  Memory swap rate = 0 Kbps Which type of VM is being described?

  A. Constrained VM

  B. Inactive VM

  C. Bully VM

  D. Over-Provisioned VM

  Correct Answer: D

• Question 3:

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

  1.

  VMs are experiencing very high latency

  2.

  Each node is equipped with a single SSD, utilized at 95%

  3.

  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.

  Correct Answer: B

  Ref: https://next.nutanix.com/prism-infrastructure-management-26/disk-space-usage-high-alert-in-prism-38199

• Question 4:

  An administrator is deploying an application using Nutanix Volumes. After configuring the volume group and connecting the guest's iSCSI initiator to the volume group, they begin performance testing.

  The administrator learns that performance on the virtual disk attached to the iSCSI initiator is far less than that of a virtual disk connected directly to the VM.

  Which situation is causing this condition?

  A. The VM's iSCSI traffic is being routed to the data services IP subnet

  B. The performance test is generating small block random 10.

  C. The duster data services IP address is a bottleneck, shared with other iSCSI traffic

  D. Data Locality ensures that VM attached disks are always faster than iSCSI volumes.

  Correct Answer: C

• Question 5:

  An administrator receives reports that VDI desktop performance in an 8-node Nutanix VDI environment is poor. Opening applications takes between 1 and 2 minutes. When investigating the issue, the following conditions are found:

  1.

  Cluster memory utilization: 80%

  2.

  Cluster SSD utilization: 70%

  3.

  Average VM CPU Wait Time: 11%

  4.

  CVM CPU utilization: 75%

  Which action should be taken to improve VDI performance?

  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.

  Correct Answer: C

• Question 6:

  Refer to the exhibit.

  

  An administrator is commissioning a Nutanix Enterprise Cloud. Once the user VMs have been deployed and are running, the administrator finds that VMs on the same host are able to communicate, but are unable to communicate between hosts.

  What must be changed to enable full inter-VM communications?

  A. Change the network the VMs are connected to

  B. Change the spanning-tree port type on the switch

  C. The VMs need to have static IP addresses

  D. Update the switch to specifically allow VLAN 15

  Correct Answer: D

  Ref: https://hyperhci.com/2019/11/09/nutanix-ahv-enable-vlan-trunk-mode-on-guest-vm/

• Question 7:

  An administrator needs to make sure an RF2 cluster can survive a complete rack failure without negatively effecting workload performance. The current cluster configuration consists of the following:

  1.

  30 nodes: distributed 10 nodes per rack across three 42U rack

  2.

  Each nodes is configured with 40TB usable storage all flash (Cluster Total 1.2 PB Usable)

  3.

  Current cluster utilization is 900TB storage

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

  A. Expanse the cluster by adding 3 additional nodes per rack, 9 nodes total.

  B. Expanse the cluster by adding 2 additional nodes per rack, 6 nodes total.

  C. Expanse the cluster by adding 9 nodes to a new 42U rack

  D. Expanse the cluster by adding 8 nodes to a new 42U rack

  Correct Answer: C

• Question 8:

  A customer has NearSync configured. When the administrator tries to restore a snapshot from 3 minutes ago, it is not available. The snapshots are happening at 15-minute intervals instead of at the 5-minute configured interval. When the protection domain was initially set up, the snapshots were happening at the expected 5-minute interval.

  What should the customer do to enable the snapshots to happen at the expected interval?

  A. Utilize Metro Availability to meet this requirement

  B. Change the protection domain to use Async DR

  C. Fix a connectivity issue because the protection domain reverted to Async

  D. Configure the protection domain to take snapshots on 15-minute intervals

  Correct Answer: C

• Question 9:

  An administrator knows that the disks in a cluster are out of date and a new firmware is available. For security reasons, these clusters do not have access to the Internet. Which two steps must be completed to update the firmware? (Choose two.)

  A. Configure LCM with a URL to access the firmware bundle.

  B. Download a dark site bundle and stage it on an internal webserver.

  C. Download the updated firmware .tgz file from the Nutanix portal.

  D. Select Upgrade Software, then select disks and upload the updated firmware.

  Correct Answer: CD

• Question 10:

  An administrator is planning to deploy a Nutanix cluster to support a few high-performance VMs. This deployment will have the following considerations:

  1.

  Individual VMs will likely generate network throughputs in the range of 90-100Mbps

  2.

  Due to the configuration of the VMs, it is unlikely that a node will host more than one or two of them at a time

  3.

  Individual VMs will communicate with only a few (one or two) remote hosts at a time

  4.

  Multicast will not be used in the environment

  5.

  The hosts are connected via two 1GbE network connections

  How should the administrator configure the network bonds to meet this requirement while maintaining the simplest switch configuration?

  A. Configure bond0 as balance-sib

  B. Configure bond0 as active-backup

  C. Configure bond0 as balance-tcp

  D. Configure bond0 as balance-lacp

  Correct Answer: B

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