NCP-MCI v6.5: Nutanix Certified Professional - Multicloud Infrastructure v6.5 Cluster Practice Questions
The free NCP-MCI v6.5: Nutanix Certified Professional - Multicloud Infrastructure v6.5 questions that deal with cluster, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #2
The administrator recently had a node fail in an AHV Nutanix cluster. All of the VMs restarted on other nodes in the cluster, but they discovered that the VMs that make up a SQL cluster were running on the failed host. The administrator has been asked to take measures to prevent a SQL outage in the future. What affinity option will prevent the SQL VMs from running on the same hos?
Correct answer: A
Explanation
Answer A. VM-VM anti-Affinity policy A VM-VM anti-Affinity policy is a rule that ensures that two or more VMs don't run on the same AHV host. It's useful when an application provides HA and an AHV host can't be an application's single point of failure1. In this case, the SQL cluster VMs should have a VM- VM anti-Affinity policy configured to prevent them from running on the same host and causing an outage if that host fails. A VM-VM anti-Affinity policy can be created using the aCLI commands2. The other options are not relevant for this scenario. References: 1: Affinity Policies - Nutanix Support & Insights 2: Affinity Policies Help | Nutanix Community
Question #4
A system administrator needs to add more VMs to their Nutanix cluster. Which two actions should the administrator perform to determine if the current cluster can accommodate the new VMs? (Choose two)
Select 2 answers.
Correct answer: B, C
Explanation
According to the web search results, the two actions that the administrator should perform to determine if the current cluster can accommodate the new VMs are: • Utilize Optimize Resources for VM efficiency: Optimize Resources is a feature in Prism Central that helps the administrator improve the efficiency and performance of their VMs by identifying and resolving issues such as overprovisioning, inactivity, constraints, or bullying3. By using Optimize Resources, the administrator can reclaim unused resources and optimize the resource allocation for their VMs3. • Determine utilization with Cluster Runway: Cluster Runway is a feature in Prism Central that helps the administrator estimate how long their cluster can continue to run normally based on the current consumption rate of CPU, memory, and storage resources4. By using Cluster Runway, the administrator can see how adding more VMs will affect the resource utilization and capacity of their cluster4.
Question #9
An administrator has been asked to enable block awareness and increase the fault tolerance to FT2 on a Nutanix AHV cluster with the following configuration: Four blocks One node per block Will the administrator be able to accomplish these tasks?
Correct answer: D
Explanation
Fault tolerance (FT) is the ability of a cluster to withstand node failures and maintain data availability. FT is determined by the replication factor (RF) of the data, which is the number of copies of each data block stored on different nodes. FT = RF - 1, meaning that the cluster can tolerate as many node failures as one less than the RF. Block awareness is a feature that enhances fault tolerance by ensuring that data copies are distributed across different blocks, which are groups of nodes that share a power source and network switch. Block awareness requires a minimum of three blocks and a minimum of six nodes in the cluster. In this scenario, the administrator has been asked to enable block awareness and increase the fault tolerance to FT2 on a Nutanix AHV cluster with the following configuration: Four blocks, One node per block. The administrator will not be able to accomplish these tasks because: • To enable block awareness, the cluster needs at least six nodes, but it only has four nodes. • To increase the fault tolerance to FT2, the cluster needs at least five nodes per RF3 or seven nodes per RF4, but it only has four nodes. Therefore, the administrator will need to add more nodes to the cluster before enabling block awareness and increasing the fault tolerance to FT2.
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