Nutanix NCS-Core Practice Test - Questions Answers, Page 15

In the deployment of a two-node cluster at a remote branch office, the presence of a Witness VM is essential to manage the cluster quorum and data integrity in case one of the nodes fails or becomes unreachable. The Witness VM acts as an external arbitrator that helps prevent data unavailability and split-brain scenarios in a situation where the cluster nodes cannot communicate with each other. This configuration is necessary because with only two nodes, there isn't a third node to maintain quorum natively.

Reference: Nutanix Bible, Nutanix University

When installing Nutanix AOS on Cisco UCS hardware platforms, the recommended method is to use the Foundation VM. This approach allows for the deployment of Nutanix software onto bare metal hardware from a virtual machine that can manage the installation process across multiple nodes simultaneously. The Foundation VM simplifies the installation and initial configuration process, ensuring that all nodes are correctly configured and integrated into the Nutanix ecosystem.

Reference: Nutanix Bible, Nutanix University

To ensure additional resiliency in a 20-node ESXi deployment capable of surviving the concurrent loss of two nodes, the consultant should configure the system with a storage reservation and HA (High Availability) admission control each set to 5%, combined with a cluster redundancy factor (RF) of 3. RF3 provides the capability to tolerate the failure of up to two nodes without data loss, thus enhancing the cluster's resilience. This configuration is optimal for maintaining cluster availability and integrity during multiple node failures.

Reference: Nutanix Bible, Nutanix University

For scenarios requiring VM availability during unplanned outages, AHV Metro with Witness Operation is designed to handle such situations. AHV Metro Availability enables synchronous replication between two sites with a witness that arbitrates site availability in case of a split-brain scenario. This setup is intended for automatic failover during service disruptions, ensuring continuous availability of VMs without manual intervention.

Nutanix Bible (https://www.nutanixbible.com), particularly the sections on disaster recovery and AHV Metro Availability.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering disaster recovery strategies and configurations.

The Foundation version included with an AOS bundle can be found in the AOS Release Notes. These release notes typically provide detailed information about all components and versions included in the bundle, ensuring that users are aware of compatibility and new features.

Nutanix Bible (https://www.nutanixbible.com), where reference to locating AOS bundle details is mentioned.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), providing instructions on how to access and interpret AOS release notes.

To validate the performance of a Microsoft SQL workload for a CRM application, using X-Ray with an OLTP (Online Transaction Processing) Workload is most suitable. OLTP workloads simulate typical transactional database operations which are representative of CRM application usage, providing accurate insights into expected performance on the Nutanix platform.

Nutanix Bible (https://www.nutanixbible.com), specifically the sections on performance testing tools and methodologies.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), detailing how to use X-Ray for specific application testing.

To validate the installed version of an NVIDIA driver in a Nutanix environment with AHV or within the CVM, use the command:

This command checks for all RPM packages related to NVIDIA installed on the Controller Virtual Machine, providing details about the driver version.

Nutanix Bible (https://www.nutanixbible.com), especially sections on AHV and CVM maintenance commands.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which covers command-line tools and driver management.

When completing a bare-metal imaging process, it is crucial to avoid connecting any device to the node's USB port that presents virtual media such as a CD-ROM. This is important because such devices can interfere with the imaging process, potentially leading to errors or misconfigurations by presenting alternative boot options or media.

Nutanix Bible (https://www.nutanixbible.com), where hardware setup and imaging process precautions are discussed.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which covers the best practices for physical setup and foundation imaging.

The most likely cause for the failure in joining the Active Directory domain when setting up Nutanix Files, given the error message about the inability to connect to logon servers and valid credentials, points to network communication issues. The specific mention of 'ads_connect: No logon servers' suggests that the File Server VMs (FSVMs) are unable to reach the domain controllers. This issue is often due to necessary network firewall ports not being open. Ensuring that all required ports for Active Directory communications are open between the FSVMs and the domain controllers would resolve this issue.

Reference: Nutanix Files Administration Guide, Active Directory Services Network Configuration requirements.