Free Practice Questions for Nutanix NCS-Core Exam

When using the Foundation tool for bare metal imaging of Nutanix nodes and dynamic discovery is not possible, the consultant needs the IPMI MAC Address of the nodes. This address is used to identify each node uniquely through its IPMI for remote management purposes, allowing the Foundation VM to interact directly with each node's base management controller (BMC) for the imaging process.References: Nutanix Bible, Nutanix University NCS-Core 6.8 learning materials

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Given the critical message about the NIC being disconnected or the switchport failing, the consultant should first verify the bonding mode of the NICs, especially since only two out of four 10GbE NICs are connected. In an AHV cluster, the NICs can be configured in different bonding modes such as active-active or active-backup. Ensuring that the NICs are configured for active-backup can provide redundancy by allowing one NIC to take over if the other fails, which seems to be necessary given the critical error indicating a possible disconnection or switchport failure. References: Nutanix Bible (https://www.nutanixbible.com/ ), Nutanix University (https://university.nutanix.com/ )

For a newly deployed Nutanix system where the customer has specified VLAN 10 for management traffic, the consultant should recommend using VLAN 10 for both CVM and AHV host traffic. This VLAN designation ensures that all management, monitoring, and internal cluster communication are on a dedicated network, separate from production VM traffic (VLAN 20) and backup/replication traffic (VLAN 30), thereby enhancing network security and performance.References:

Nutanix University - NCS-Core 6.8 Learning Path

The Nutanix Bible, Network Configuration chapter (https://www.nutanixbible.com/ )

In a Nutanix environment, if the login process using an Active Directory (AD) user account takes more than a minute to complete, it could be due to the configuration of the AD lookups.

Active Directory lookups can be configured to use either Recursive or Non-Recursive mode. In Recursive mode, the system will look up each group that a user is a member of, then each group that those groups are members of, and so on. This can lead to a large number of lookups and potentially slow down the login process1.

On the other hand, in Non-Recursive mode, the system only looks up the direct groups that a user is a member of. This can significantly reduce the number of lookups and speed up the login process1.

Therefore, the administrator should confirm that Active Directory lookups are configured to use Non-Recursive mode to resolve this issue.

References:

Active Directory Authentication is slow - Takes minutes to Logon | Nutanix Community

Configuring Authentication | Nutanix Community

Solving Slow Logon Issues in Active Directory Environments

Based on the subnet assignments from the exhibit provided, the Hypervisor Management IP addresses fall within the 10.170.0.5, 10.170.0.6, 10.170.0.7 range with a subnet mask of 255.255.240.0, indicating a /20 subnet. However, the Foundation VM (FVM) and the Consultant Laptop should ideally be on the same subnet as the Controller Virtual Machine (CVM) to facilitate easy access and management. The CVM IP addresses indicated are 10.170.0.4, 10.170.0.9, and 10.170.0.10 with subnet 255.255.240.0 (/20). Thus, the appropriate choice for the FVM and Laptop that matches the subnet without overlapping with existing IPs and allows network configuration without conflicts would be in the same /24 range as suggested in option D, i.e., FVM: 10.170.25.2/24, Laptop: 10.170.25.12/24.

References:

Nutanix Networking and Foundation Setup Guidelines

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

Ref: https://portal.nutanix.com/page/documents/details?targetId=System-Specs-G6-Single-Node:set-block-connect-c.html

The proper network configuration to solve the described issue involves using tagged VLANs for the CVM (Controller Virtual Machine) and host, allowing these components to correctly interact with the customer's VLAN-configured network. For the IPMI (Intelligent Platform Management Interface), which is used for out-of-band management and does not require connectivity to multiple VLANs, setting it to access mode is appropriate. This configuration ensures that the IPMI only communicates over a single, untagged VLAN, effectively isolating its traffic from the production network.

References:

Nutanix Bible (https://www.nutanixbible.com ), particularly the sections on networking and VLAN configurations.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), where VLAN and network settings are covered.

The best way for the customer to learn how to create, escalate, comment, and close cases is through a demonstration of the Support Portal. This portion of the Knowledge Transfer focuses on showing customers how to effectively use the Support Portal, which is an essential tool for managing support tickets and communicating with Nutanix support. This hands-on demonstration helps ensure that customers are familiar with the functionalities and can navigate the portal effectively.References:

Nutanix University - NCS-Core 6.8 Learning Path

The Nutanix Bible, Support and Maintenance chapter (https://www.nutanixbible.com/ )