Free Nutanix Certified Master - Multicloud Infrastructure (NCM-MCI) 5.20 Exam Braindumps (page: 8)

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A guest VM is reported to have poor storage performance. It has an I/O profile of 80% read. 20% write, and the HDDs form more than 50% of the read source.
What should an administrator do to resolve this issue?

  1. Increase SSD capacity
  2. Increase the OPLOG
  3. Increase the write cache
  4. Use HDDs with higher RPM

Answer(s): A


Reference:

https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2126-SAS-on-Nutanix:BP-2126-SAS-on-Nutanix



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?

  1. Incorrect link speeds on the switch
  2. The interface is incorrectly configured with Jumbo Frames
  3. A misconfigured bond
  4. A physical layer network problem

Answer(s): B

Explanation:

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.



An administrator deletes a large amount of data from a Volume Group presented to a Linux VM. The administrator notices that the deleted data has not been reclaimed as usable storage.
What action should be taken to reclaim the storage capacity?

  1. Shrink the Volume Group that is associated with the Linux VM
  2. Unmount the Volume Group and then Remount the Volume Group
  3. Enable the unman operation on the Linux VM
  4. Run Defrag on the Linux VM

Answer(s): B


Reference:

https://next.nutanix.com/how-it-works-22/vm-capacity-and-prism-capacity-are-different-33134



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?

  1. NearSync
  2. Leap
  3. Metro Availability
  4. Asyn&DR

Answer(s): B


Reference:

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






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