Nutanix Nutanix Certifications NCM-MCI Questions & Answers

• Question 21:

  An administrator has an existing Nutanix seven-node cluster running at RF2 that must be changed to have the following capabilities:

  1.

  RF3 set for the cluster

  2.

  Performance tier deduplication

  What is the minimum memory needed on the CVMs to allow for these capabilities?

  A. 24GB

  B. 28GB

  C. 32GB

  D. 20G?

  Correct Answer: B

  Ref: https://next.nutanix.com/how-it-works-22/rf2-rf3-requirements-37206#:~:text=Controller%20VMs%20must%20be%20configured,for%20the%20feature)% 20of%20memory.

• Question 22:

  Refer to the exhibit.

  

  A Microsoft SQL 2016 deployment is shown in the exhibit. The administrator receives user reports that database queries take too long to return. Which optimization should be made to this configuration to improve performance?

  A. Combine both of the OS and SQL Binaries disks

  B. Add a second SCSI controller for the Database.

  C. TempDB, and Logs disk Separate the Database. TempDB, and Logs onto their own disks

  D. Configure the VM to use a PCI disk controller

  Correct Answer: C

• Question 23:

  An administrator receives an alert in Prism indicating that interface eth2, on an AHV host is receiving many CRC errors. After togging 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

  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 10 Gig 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 24:

  An administrator is using Nutanix Move to migrate a Windows 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 the administrator 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: A

  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 25:

  A customer has two mission-critical applications and needs to have them backed up to a remote location. The remote location is connected using a leased line and has an average latency of 7 ms. Which Nutanix technology will provide the shortest RPO possible?

  A. NearSync

  B. Leap

  C. Metro Availability

  D. AsynandDR

  Correct Answer: A

  Ref: https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2005_Data_Protection:BP-2005_Data_Protection

• Question 26:

  For several days, an administrator notices the following alerts:

  1.

  CVM NIC Speed Low Warning Alerts

  2.

  Warning Alerts of CVM NIC not performing at optimal speed

  3.

  CVM is disconnected from the network Critical Alert

  4.

  Network Visualization page shows excessive dropped packets on CVM/Host

  Which steps should be taken to determine which problem should be addressed first?

  A. 1. Access the Hardware Page to verify resources are available

  2.

  Analyze ail CVM Speed Alerts in the Alerts/Events page

  3.

  Analyze output for the network and interface properties and connectivity issues

  B. 1. Verify Host/CVM connectivity on the Network Visualization page

  2.

  Use to verify the bridge and bond configuration

  3.

  Review alerts/events page for the CVM disconnected error

  C. 1. Review Alerts page for NIC speed alerts and alert timing

  2.

  Analyze the genesis.out log file for process failures

  3.

  Assess the NIC properties in the Network Visualization>; Host Properties page

  D. 1. Restart networking services on the CVM

  2.

  Determine the current configuration of the affected CVM via output

  3.

  Access the Alerts/Events page for the CVM network connection failures

  Correct Answer: B

  Ref: https://portal.nutanix.com/page/documents/kbs/details?targetId=kA00e000000CuaDCAS

• Question 27:

  Microsegmentation was recently enabled in a Nutanix environment. The administrator wants to leverage Prism Central to create a policy that will block all traffic, regardless of direction, between two groups of VMs identified by their category.

  Which policy should be used to meet this requirement?

  A. A Quarantine Policy

  B. An Isolation Environment Policy

  C. An Application Security Policy

  D. A Whitehst-Based Policy

  Correct Answer: B

• Question 28:

  An administrator is deploying an application that requires maximum I/O throughput for scratch data. The administrator is concerned that the throughput requirement is greater than what can be provided by a single cluster node.

  What should the administrator do to meet this requirement?

  A. Create a volume group with several virtual disks and attach to the VM

  B. Create a volume group with one virtual disk attached to the VM

  C. Create a virtual disk attached to the VM's PCI interface

  D. Create several virtual disks attached to the VM's virtual SCSI controller

  Correct Answer: A

  Ref: https://next.nutanix.com/community-blog-40/scaling-up-vm-storage-performance-on-ahv-volume-group-load-balancer-28063

• Question 29:

  An administrator inherits a new Nutanix environment and logs in to a CVM to check the network configuration. The configuration is as follows:

  

  Which action should the administrator take to improve network performance?

  A. Configure VLAN tagging both on br0 and br1 and their physical interfaces.

  B. Add eth0 and eth1 to the br0-up bond

  C. Configure balance-sib or balance-tcp mode for br0-up if switch configuration allows

  D. Remove one 10 Gbs interface from br0-up to make sure all 10 Gbs can be used.

  Correct Answer: D

• Question 30:

  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.

  Correct Answer: D

  Ref: https://portal.nutanix.com/page/documents/details?targetId=Files-v3_6:fil-files-high-availability-c.html