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Free NCP-MCI Exam Braindumps (page: 17)

Page 16 of 45
PDF with 178 Questions

What Nutanix feature provides effective caching optimization In VDI environments?

  1. Remote Protection Group
  2. Local Protection Group
  3. Snap Clones
  4. Shadow Clones

Answer(s): D

Explanation:

Shadow Clones is a Nutanix feature that provides effective caching optimization in VDI environments. VDI stands for Virtual Desktop Infrastructure, which is a technology that allows users to access virtual desktops hosted on a centralized server. VDI environments typically have a high degree of similarity among desktop images, which means that many VMs access the same data blocks from the storage layer. Shadow Clones leverages this similarity by creating read-only copies of frequently accessed data blocks on each node's SSD tier, reducing network traffic and improving performance. Shadow Clones works automatically and transparently without any configuration or intervention from the administrator.


Reference:

: [Fault Tolerance - Nutanix Bible] : [Block Awareness - Nutanix Bible] : [Block Awareness - Nutanix Support & Insights] : [Shadow Clones - Nutanix Bible] : [Shadow Clones - Nutanix Support & Insights] : [Shadow Clones - Nutanix Community]



Which capability refers to the storage of VM data on the node where the VM is running and ensure that the read I/O does not have to traverse the network?

  1. Intelligent Locally
  2. Data Locality
  3. Intelligent Tiering
  4. Data Tiering

Answer(s): B

Explanation:

Data locality is the capability of storing VM data on the node where the VM is running and ensuring that the read I/O does not have to traverse the network. Data locality is a unique feature of Nutanix that provides high performance and low latency for VMs by minimizing network traffic and crosstalk. Data locality works by writing one copy of the data local to the VM and the other copy (or copies) on other nodes.
When a VM migrates to another node, Nutanix also moves its data to the new node and serves all I/O requests locally. Data locality also adapts to changing workloads and access patterns by dynamically moving data to where it is needed most1.



An administrator has received reports of users being disconnected from remote desktop sessions to a specific VM.

Which VM metric is most useful isolating the cause of the issue?

  1. Storage Controller Bandwidth
  2. Swap-Out Rate
  3. Hypervisor CPU Ready time (%)
  4. Virtual NIC receive packet dropped

Answer(s): D

Explanation:

Virtual NIC receive packet dropped is the most useful VM metric for isolating the cause of users being disconnected from remote desktop sessions to a specific VM. This metric shows the number of packets that are dropped by the virtual NIC of the VM due to insufficient buffer space or other reasons. Packet drops can indicate network congestion, misconfiguration, or performance issues that can affect the quality and availability of remote desktop sessions. Packet drops can also cause retransmissions, delays, and errors in TCP-based protocols such as RDP2. To view this metric in Prism, go to Entities > Compute & Storage > VMs > Summary View and select a VM. Then, in the Details View, go to Metrics > Performance and select Virtual NIC receive packet dropped from the drop- down menu3.



What does Nutanix recommend when setting up the node networkring?

  1. Include NIC models from different vendors in the same bond
  2. Include at least two physically interfaces in every bond.
  3. Combine NIC models from different vendors in the same bond.
  4. Combine NIC models from different vendors in the same bond.

Answer(s): B

Explanation:

A bond is a logical interface that combines two or more physical interfaces on an AHV host. A bond provides high availability and load balancing for the network traffic of the host and its VMs. A bond can have different modes that determine how the traffic is distributed and how the bond handles failures of the physical interfaces. The most common bond modes are active-backup, active-active, and LACP1.

Nutanix recommends including at least two physical interfaces in every bond to ensure high availability and redundancy. If one of the physical interfaces fails or is disconnected, the other interface can take over the traffic without affecting the connectivity of the host or its VMs. Having at least two physical interfaces in a bond also allows for maintenance operations such as firmware upgrades or cable replacements without downtime2.

Nutanix does not recommend including NIC models from different vendors in the same bond, as this may cause compatibility issues or performance degradation. Nutanix also does not recommend using only one physical interface in a bond, as this provides no redundancy or load balancing benefits3.


Reference:

Nutanix AHV Networking Best Practices






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