Free Practice Questions for Nutanix NCS-Core Exam

Ref: https://next.nutanix.com/community-blog-40/scaling-up-vm-sto rage-performance-on-ahv-volume-group-load-balancer-28063

When using active-backup bonding, failover delay can occur due to Spanning Tree Protocol (STP) reconvergence. STP places ports in a learning and listening state before forwarding traffic, causing packet loss during failover.

To minimize failover time, Spanning-tree PortFast should be enabled on the switch ports connected to the Nutanix hosts. PortFast immediately transitions ports to the forwarding state, avoiding the default 30-50 second delay caused by STP reconvergence.

Jumbo frames (A) only optimize network performance by allowing larger packet sizes but do not impact failover speed.

PAGP (B) is a Cisco-specific link aggregation protocol and is not applicable to Nutanix AHV bonding.

LACP on switch (C) is used for link aggregation, which is not relevant here as the default mode is active-backup, not LACP-based bonding.

An alert of this nature in the file server dashboard usually indicates issues related to node availability within a cluster. Specifically, the failure of a node in a three-node cluster (Option B) can lead to insufficient resources to handle all tasks, which might trigger such an alert. Additionally, setting a node to maintenance mode in a three-node cluster (Option D) also disrupts service availability and could generate a similar alert, as the remaining nodes might struggle to handle the load or maintain data redundancy.References: Nutanix AOS User Guide, Nutanix Files Documentation.

Before starting the Foundation process, the consultant should prepare the network by:

On Nutanix NX Series, connect the IPMI port and any one of the data ports to the switch: This ensures that the IPMI (for management and remote access) and at least one data port (for cluster communication and data traffic) are connected and operational, facilitating a smooth foundation process.

References:

Nutanix Bible (https://www.nutanixbible.com ), especially sections on initial hardware setup and network preparations.

Nutanix Hardware Setup Guide from Nutanix University (https://university.nutanix.com ), detailing the specific steps for networking configurations during initial setup.

Ref: https://portal.nutanix.com/page/documents/details?targetId=Files-v3_6:fil-file-server-manage-c.html

To ensure the new application is securely deployed without affecting existing applications, the administrator should create new categories for the VMs hosting the new application. This approach allows for targeted application of security policies without impacting other applications. After creating these new categories, the administrator should then create new security policies that incorporate these categories and specify the unique, non-standard ports used by the application, ensuring that security is tailored specifically to the new application's needs.References: Nutanix Prism Central Guide, Nutanix Security Configuration Best Practices.

To determine the correct answer, you must evaluate the requirements for installing a Nutanix NX-3460-G6 block. Each block typically occupies 2U of rack space. Since the customer has two blocks, a total of 4U is required, which fits within the available 5U rack space. Additionally, each block requires two power sockets (one for each node in the block), totaling four sockets. Since there are six available sockets, there is enough power availability. Therefore, the primary constraints are adequately met in terms of rack space and power sockets. The mention of network ports and their sufficiency is not required here, as it isn't the limiting factor based on the details provided.

References:

Nutanix Bible (https://www.nutanixbible.com )

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com )

Nutanix Deployment Guide

Nutanix Hardware and Installation Guide

When deploying a multi-node Nutanix cluster, if one node fails to image and the Nutanix Foundation tool cannot configure the cluster automatically, the consultant can manually create the cluster with the nodes that were successfully imaged. The correct command to initiate this process is cluster create. This command starts the cluster services and allows for further expansion once the cluster is operational, which would include adding the node that initially failed to image.

References:

Nutanix Bible (https://www.nutanixbible.com ), specifically the section on manual cluster creation.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), videos on manual cluster operations.

If a VM deployed on the storage network cannot access a SMB standard share, the likely issue is that:

Clients on the same subnet as the storage network cannot access the shares: This scenario typically occurs due to network segmentation policies or firewall rules that restrict access to the storage network from clients within the same subnet, intended to segregate traffic types for security and performance reasons.

References:

Nutanix Bible (https://www.nutanixbible.com ), specifically sections on network segmentation and Nutanix Files configurations.

Nutanix Technical Documentation on Nutanix Files, which covers network configuration and troubleshooting issues related to file access.