NCSE-Core Exam Dumps - Nutanix SE Academy Questions and Answers

Sizer Scenario Utility:

Nutanix Sizer is a tool used to configure and size Nutanix deployments based on customer workloads and requirements.

Actions Possible with BOM (Bill of Materials):

Review Budgetary Pricing: The BOM provides detailed component and configuration costs, enabling budgetary analysis.

Review Workload Sizing Details: The Sizer generates detailed workload sizing, helping validate if the proposed configuration meets the performance needs.

Actions Not Possible:

Review Power Consumption Requirements: Sizer primarily focuses on performance and cost, not detailed power requirements.

Review Applicable Discounts: This is typically handled through sales channels and deal registrations, not directly via Sizer.

Reference HCL for Additional SKUs: The Hardware Compatibility List (HCL) lookup is beyond the scope of the immediate BOM review.

References:

Nutanix Sizer tool documentation and usage guidelines.

Manual Sizing Considerations:

Switching to manual mode requires a more detailed consideration of various factors to ensure the configuration meets the desired requirements.

Key Considerations:

N + 1 Availability:

Explanation: Ensures high availability and fault tolerance by adding redundancy. This means the system can tolerate the failure of one node without impacting the overall system availability.

When using RVTools output for sizing a solution, it is crucial to understand that it represents a point in time snapshot of the environment. This snapshot captures the state of the VMs and hosts at a specific moment, which is important for making accurate assessments and planning based on the current environment's status​​​​.

Customer Requirement:

Failover capability to a secondary datacenter with an RPO and RTO of no more than 15 minutes.

Round trip latency between sites can reach up to 6ms.

Nutanix Feature:

NearSync: This feature provides a low RPO/RTO disaster recovery solution with support for low-latency inter-site communication.

Explanation:

NearSyncallows for frequent asynchronous replication with very low RPOs (as low as 1 minute) and ensures rapid recovery times.

It is designed to handle round trip latencies up to 6ms, making it suitable for the customer’s inter-site latency requirements.

Outcome:

NearSync will enable the customer to meet their stringent RPO and RTO requirements, ensuring that VMs can be powered on in the secondary datacenter quickly in the event of a primary datacenter failure.

References: For further details on NearSync capabilities and configuration, refer to Nutanix documentation on disaster recovery and NearSync features.

Nutanix X-Ray is the tool packaged as a VM that uses realistic workloads paired with real-world test scenarios for HCI environments. It is designed to benchmark performance during typical workflows and failure events. X-Ray provides comprehensive testing capabilities, simulating various conditions and workloads to help evaluate the performance and resilience of the Nutanix infrastructure.

References:

Nutanix Bible

To improve the performance of VDI desktops in an 8-node Nutanix VDI environment, consider the following key performance indicators:

Cluster Memory Utilization: 80%- This high level of memory utilization suggests that the cluster is experiencing memory pressure. Insufficient memory can lead to increased swap activity, affecting the overall performance of the VDI environment.

Cluster SSD Utilization: 70%- This level of SSD utilization indicates that storage performance is still within acceptable limits. Therefore, adding more SSD storage may not provide a significant performance boost.

Average VM CPU Wait Time: 11%- A high CPU wait time can be indicative of CPU contention, but in this scenario, it is more likely secondary to memory constraints.

CVM CPU Utilization: 75%- CVM utilization is moderately high, but not at critical levels. This suggests that the CVMs are performing their management functions adequately.

Given these conditions, adding more memory to the nodes will help reduce memory pressure, improve overall system performance, and reduce CPU wait time as VMs will have enough memory to operate efficiently without excessive swapping.

References:

Nutanix Bible, Performance Optimization section​​.

Nutanix-Community-Edition-Getting-Started, Memory and Performance tuning​​.

To increase availability by enabling rack awareness in a current configuration with a single RF2 cluster consisting of 7 identical NX-3170 1U nodes, the systems engineer should:

Add Nodes: Increase the node count to enhance redundancy.

Add 2 additional NX-3170 1U nodesto bring the total to 9 nodes. This ensures there are enough nodes to distribute across multiple racks while maintaining the RF2 configuration.

Distribute Nodes Across Racks:

Distribute nodes across 2 separate racksto achieve rack awareness. This means placing nodes in such a way that the failure of a single rack does not impact the availability of the entire cluster.

By following these steps, the cluster will be resilient to a single rack failure, enhancing the overall availability.

References:

Nutanix documentation on RF2 configurations and rack awareness.

Best practices for node and rack distribution to ensure high availability.

Industry Regulatory Compliance:

Nutanix SCMA automates the enforcement of security policies and compliance requirements across the infrastructure.

This reduces the manual effort required to maintain compliance with industry regulations, addressing the customer's concern about man-hour requirements​​​​.

SCMA Features:

Automates security configurations and monitoring.

Ensures consistent application of security policies and compliance requirements​​​​.

References:

Nutanix Security and Compliance Documentation​​.

Industry practices for automation in security management​​.

B. Beam:

Nutanix Beam is a multi-cloud cost optimization and governance tool that provides deep visibility into cloud usage and spending. It helps organizations understand and manage their cloud costs on a per-application basis.

Beam enables detailed auditing and reporting of where applications reside across both public and private clouds. This addresses the customer’s difficulty in auditing applications and understanding cloud costs.

Key features of Beam include cost visibility, budget management, compliance, and security monitoring, making it an ideal solution for the customer’s needs.

In Nutanix Files (formerly known as Acropolis File Services or AFS) 3.5, home shares require a multi-FSVM deployment to function correctly. A single FSVM deployment does not support the configuration of home shares.

Single FSVM Limitation: A single FSVM deployment lacks the necessary redundancy and performance capabilities required for supporting home shares. Home shares require multiple FSVMs to provide high availability and load balancing, which is essential for managing user home directories effectively.

Home Shares Configuration: Home shares are designed to distribute user data across multiple nodes to ensure availability and performance. This distribution requires at least three FSVMs in a typical deployment setup.

Troubleshooting: When home shares cannot be configured, one of the first checks is to ensure that the deployment consists of the required number of FSVMs. In this case, the deployment having only a single FSVM directly explains the issue.

References:

Nutanix Bible, Section on File Services and Multi-FSVM requirements​​.

Nutanix-NDB-User-Guide, Network Requirements for Nutanix File Deployments​​.