Nutanix Certified Systems Engineer-Core (NCSE-Core 6.8) NCSE-Core Exam Questions with Experts Answers Updated Recently

Understanding the Requirements:

To improve the performance of an existing Nutanix cluster, it's important to consider the nature of the workloads and the configuration of the virtual machines (VMs).

Workloads are Multi-threaded (Option A):

Multi-threaded workloads can take advantage of multiple CPU cores, which helps in parallel processing and improves overall performance.

Nutanix clusters benefit from workloads that can efficiently utilize multiple threads since the underlying hypervisor (AHV or ESXi) can allocate multiple vCPUs to VMs, enhancing their performance capabilities.

VMs have more than one vCPU (Option D):

Assigning more than one vCPU to VMs allows them to process multiple instructions simultaneously, leveraging the multi-core capabilities of the physical CPUs.

This configuration is particularly beneficial for performance-sensitive applications that require more computing power and can significantly improve the performance of VMs on the Nutanix cluster.

Analysis of Other Options:

Option B: VMs have one vCPU configured:

This option limits the VMs to a single CPU core, which can bottleneck performance for multi-threaded applications and is not optimal for performance improvement.

Option C: VMs have multi-queue disable:

Disabling multi-queue can reduce the network performance by limiting the ability of the VMs to handle multiple network queues, which can be detrimental to performance.

Conclusion:

Therefore, to achieve greater performance, ensuring that workloads are multi-threaded and VMs are configured with more than one vCPU are the optimal strategies.

References: Nutanix documentation emphasizes the importance of configuring VMs with multiple vCPUs and supporting multi-threaded workloads to maximize performance in Nutanix clusters.

To verify if all network cards associated with BridgeO are being used by nodes in an AHV cluster, you need to examine the network configuration and the network interface cards (NICs) on the hosts. The following menus in the Prism interface will provide the necessary information:

Host NICs tab in Hardware menu:

This tab provides a detailed view of all NICs available on each host in the cluster.

It shows the status, speed, and configuration of each NIC, which helps determine if all network cards are active and properly associated with BridgeO.

Host view in Network menu:

The Network menu under the Host view provides insights into the network configuration for each host.

It includes information on how NICs are bridged, VLAN assignments, and overall network topology, confirming if all NICs are effectively used and contributing to the bridge.

These menus collectively ensure that the administrator can verify the network setup and utilization of all network interfaces.

References:

Nutanix Bible, Networking section detailing NIC and bridge configuration​​.

Nutanix-Community-Edition-Getting-Started, Sections on network management and host configuration​​.

Understanding FIPS 140-2 Level 2 Requirements:

FIPS 140-2 is a U.S. government standard that specifies security requirements for cryptographic modules. Level 2 adds requirements for tamper-evidence and role-based authentication.

Required Items for FIPS 140-2 Level 2 Compliance:

Self-Encrypting Drives (SEDs):

Explanation: SEDs automatically encrypt data at rest, meeting the encryption standards required by FIPS 140-2 Level 2.