Nutanix NCS-Core Practice Test - Questions Answers, Page 25

Nutanix Security: As part of security improvements (complying with California statute SB-327), Nutanix changed the default IPMI password policy.

Node-Specific Password: Each Nutanix NX hardware node now ships with a unique default IPMI password for the ADMIN user.expand_more This password is the node's serial number (using capital letters).expand_more

Finding the Serial Number: You can locate the node's serial number either on a physical sticker or by running the ipmitool fru print command on the node.

Nutanix Support Portal - Knowledge Base Article 1091: https://portal.nutanix.com/kb/1091

When preparing the cluster offsite in a safe room, the consultant should ensure that the Foundation VM is correctly configured to handle IPMI networking. Implementing a virtual switch dedicated to the IPMI network within the Foundation VM environment ensures that there is a segregated and controlled network path for IPMI traffic, which is crucial for initial hardware configuration and management. This setup facilitates the secure and efficient foundation process before the cluster is moved to the data center.

Reference: Nutanix Foundation Tool Guide, Nutanix Network Configuration Best Practices.

To ensure that alerts are automatically sent to Nutanix support, the Nutanix feature called Pulse must be enabled. Nutanix Pulse is an automated system intelligence service that collects health information and system alerts from Nutanix clusters and sends them to Nutanix support for proactive monitoring and troubleshooting. Enabling this feature is crucial for maintaining high availability and performance of the Nutanix environment, as it allows Nutanix support to quickly respond to and manage potential issues.

Reference: Nutanix Pulse Documentation, Nutanix Support Services Information.

The consultant should be aware that the subnet 192.168.5.0/24 is reserved for internal connectivity within a Nutanix cluster. This subnet is typically used for the internal operations of the Nutanix cluster, including CVM backplane communications. It is critical to ensure that this subnet does not overlap with any external network configurations to avoid networking conflicts that can affect cluster operations and communications.

Reference: Nutanix Networking Best Practices, Nutanix Cluster Configuration Guide.

When encountering timeout issues during Foundation using a customer-provided network switch, one common cause can be mismatched or unsupported network configurations, particularly concerning MTU sizes:

A . Check jumbo frames support of the network switch: Ensuring that the switch supports jumbo frames (MTU of 9000) and is properly configured for it can prevent timeout issues that might arise due to packet fragmentation or dropped packets.

Nutanix Bible (https://www.nutanixbible.com), which discusses network prerequisites for successful Foundation.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering the technical setup and network requirements for cluster deployments.

Regarding the Reserved Capacity parameter in a storage container:

C . Reserve capacity for a storage container only if the storage pool consists of a single storage container: This best practice ensures that dedicated space is guaranteed for the container, which is particularly important if the storage pool is not shared among multiple containers. This prevents space from being over-provisioned or unavailable when needed by critical applications.

Nutanix Bible (https://www.nutanixbible.com), specifically sections on storage management and best practices for capacity planning.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which includes detailed discussions on storage container configuration and management.

In the As-Built Guide for an AHV cluster deployment with each node configured with four NICs, the consultant should manually update:

A . Node Port Layout Diagram: To reflect the physical connectivity and usage of each NIC on the nodes.

B . Network Cabling Diagram: To accurately document how each node is connected to the network infrastructure, ensuring clarity on physical network setup.

Nutanix Bible (https://www.nutanixbible.com), where documentation standards and diagrams are emphasized.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering the importance of accurate network and port documentation in deployment guides.

To address critical alerts about components using default passwords in the Prism Element Web Console:

C . Check NCC results and review the associated KB: The Nutanix Cluster Check (NCC) tool can identify security vulnerabilities, including default password usage. Reviewing the results and associated knowledge base articles provides specific guidance on changing these passwords to secure the environment.

Nutanix Bible (https://www.nutanixbible.com), specifically sections on cluster health checks and security practices.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which includes instruction on using NCC for cluster validation and security enhancements.

Noticing a potential typo or error in the DNS server IP address notation:

D . New IPs provided should be verified to not conflict with the customer's network: It's crucial to verify the accuracy and validity of the IP addresses provided, ensuring there are no typos and that the IPs do not conflict with existing network configurations. The noted IP '192.1685.20' appears to be incorrectly formatted and should be corrected and validated.

Nutanix Bible (https://www.nutanixbible.com), where network preparation and IP address configuration are covered.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which discusses network planning and verification in cluster deployments.