Nutanix Certified Professional - Multicloud Infrastructure v6.10 NCP-MCI Exam Questions

Answer : D

When performing a Life Cycle Manager (LCM) upgrade, the recommended way to stop the process is to use the ''Stop Update'' feature in LCM (Option D).

Option A (Cancel via Ergon ecli) is not a recommended approach since manually interfering with running tasks can cause inconsistencies.

Option B (lcm_task_cleanup.py script) is used for post-upgrade cleanup but does not stop ongoing updates.

Option C (Restarting Genesis) does not stop an LCM upgrade and can cause instability.

Nutanix Life Cycle Manager (LCM) User Guide

Nutanix KB: Best Practices for Stopping and Restarting LCM Tasks

Nutanix Prism Central LCM Feature Documentation

Answer : C

Receive Side Scaling (RSS) VirtIO-Net Multi-Queue improves network performance by distributing network processing across multiple CPU cores.

Option C (Enable RSS VirtIO-Net Multi-Queue) is correct:

This setting reduces CPU bottlenecks by allowing multiple queues to handle network packets.

It is essential for high-throughput network applications.

Option A (Add more vCPUs) is incorrect:

CPU resources are important, but without enabling RSS, additional vCPUs will not optimize network traffic distribution.

Option B (Enable AHV Turbo Technology) is incorrect:

AHV Turbo improves disk I/O, not network I/O.

Option D (Add more RAM) is incorrect:

RAM does not directly impact network performance.

Nutanix AHV Best Practices Guide Optimizing Network Performance with RSS Multi-Queue

Nutanix KB Enabling Multi-Queue for High-Performance Applications

Answer : D

Nutanix storage containers allow administrators to configure capacity reservations and advertised limits for better resource management.

Option D (Set Reserved Capacity to 10 GiB and Advertised Capacity to 500 GiB) is correct:

Reserved Capacity ensures that 10 GiB is always available for this container and not consumed by other containers.

Advertised Capacity defines a logical limit of 500 GiB to prevent over-allocation.

Option A is incorrect:

Advertised Capacity of 10 GiB is too low and does not match the requirement of a 500 GiB storage container.

Option B is incorrect:

Only setting Advertised Capacity does not guarantee Reserved Capacity, meaning other containers could consume the reserved space.

Option C is incorrect:

Setting only Reserved Capacity does not enforce an upper limit, which could lead to overprovisioning.

Nutanix Storage Management Guide Understanding Storage Container Settings

Nutanix KB Advertised vs. Reserved Capacity in Storage Containers

Answer : B

Answer : C

In Nutanix Prism Central, user-generated reports in Intelligent Operations are stored for a limited time and then deleted automatically.

Option C (Reports are automatically deleted after 24 hours) is correct:

Reports do not persist indefinitely unless they are scheduled reports.

One-time reports expire after 24 hours.

Option A (Cluster Viewer deleted the report) is incorrect:

Cluster Viewer does not have permissions to delete reports.

Option B (Report was archived) is incorrect:

Nutanix does not automatically archive reports.

Option D (Report stored in Prism Element) is incorrect:

Reports are generated and stored only in Prism Central, not Prism Element.

Nutanix Prism Central Guide Intelligent Operations & Report Retention Policies

Nutanix KB Why Reports in Prism Central Are Not Persisting

Answer : A

Understanding the Exhibit & Memory Allocation

The host has 128GB of physical RAM.

The current memory allocation across three VMs (VM1, VM2, VM3) is 128GB, but only 92GB is actually utilized.

This means there is 36GB of unutilized memory available for allocation.

Step-by-Step Breakdown

Existing Memory Usage Before Adding VM4

Total Physical RAM: 128GB

Used by running VMs (VM1, VM2, VM3): 92GB

Unutilized Memory Available: 36GB

After Creating and Running VM4

VM4 is allocated memory but only utilizes 28GB.

The table does not show VM4's allocated RAM, but assuming it was given a reasonable allocation, it must have been taken from the 36GB unutilized memory pool.

If VM4 uses 28GB, the remaining unutilized memory is now (36GB - 28GB) = 8GB.

Maximum Memory Allocation for VM5

Since only 8GB remains unutilized, the maximum memory VM5 can be allocated while still allowing it to power on is 8GB.

Evaluating the Answer Choices

(A) 4GB (Incorrect)

More memory (8GB) is available, so limiting to 4GB is unnecessary.

(B) 8GB (Correct)

The remaining unutilized memory after VM4 is 8GB, so VM5 can be allocated up to 8GB while ensuring it can power on.

(C) 16GB (Incorrect)

Only 8GB is left, so 16GB is not possible.

(D) 32GB (Incorrect)

There is not enough unutilized memory to allocate 32GB.

Key Concept: Nutanix Memory Overcommit

Nutanix AHV supports memory overcommit, meaning VMs can be allocated more memory than physically available using memory ballooning and swapping.

However, to power on VM5 without impacting performance, it must fit within the available unutilized memory, which is 8GB.

Answer : C

he Prism Central Memory Cluster Runway Diagram provides insights into memory usage trends, predicting how long the cluster can sustain workloads before exhausting resources.

The solid blue area represents the actual memory consumption over time.

The dotted red line represents the effective memory capacity limit based on the cluster's current configuration.

Analyzing the Dotted Red Line

The dotted red line is labeled 'Effective Capacity: 503.22 GiB', which means:

It is the total usable memory capacity in the cluster after considering hypervisor overhead, redundancy settings, and failover capacity.

This value is not a hard limit but an indication of the available memory before potential performance issues occur.

Evaluating the Answer Choices

(A) It is the default trend analysis static threshold that can be manually set. (Incorrect)

The dotted red line is not a static threshold that an administrator can manually configure.

Trend analysis in Prism is dynamic and based on workload history and projections.

(B) It is the maximum memory the administrator can assign to VMs. (Incorrect)

Administrators can oversubscribe memory beyond the dotted red line if memory overcommitment is enabled.

However, oversubscribing memory beyond effective capacity may impact performance.

(C) It is the calculated memory oversubscription limit for currently running VMs. (Incorrect)

The dotted red line does not represent oversubscription limits.

Memory oversubscription depends on hypervisor memory ballooning, compression, and swapping mechanisms, which are not directly shown here.

(D) It is the usable capacity based on cluster configuration options. (Correct Answer)

The dotted red line (503.22 GiB) represents the actual usable memory available in the cluster after factoring in system overhead.

This value is determined by:

Total physical memory (256 GB per host 3 hosts = 768 GB)

Memory reserved for hypervisor and system processes

Cluster failover and redundancy settings

Intelligent Operations capacity analysis

Multicloud Infrastructure Reference & Best Practices

Prism Central's 'Runway' feature provides AI-driven trend analysis for memory, CPU, and storage capacity.

The effective capacity limit helps administrators make proactive scaling decisions before resources become critical.

To increase the memory runway, administrators can:

Optimize VM memory allocation.

Add more hosts to the cluster.

Enable memory deduplication and compression (if available).