Nutanix NCP-CI-AWS Practice Test - Questions Answers, Page 4

A valid CIDR range: A CIDR (Classless Inter-Domain Routing) range is necessary for creating the subnets within the VPC. This range defines the IP address space for the cluster and its components.

A my.nutanix.com account: This account is required to access Nutanix services, including the NC2 console, manage licenses, and perform other administrative tasks.

AWS Direct Connect and an on-premises Prism Central environment are not prerequisites for deploying an NC2 on AWS cluster. While Direct Connect can be used for enhanced network performance and connectivity, it is not a requirement for deployment. Similarly, having an on-premises Prism Central environment is not mandatory for NC2 deployment on AWS.

Reference: Refer to the Nutanix documentation on NC2 prerequisites and setup guides, and AWS documentation on VPC and subnet creation.

When deploying a new NC2 cluster, the AWS Directory Service must be able to resolve the address gateway-external-api.cloud.nutanix.com.

This external API gateway is critical for the NC2 cluster to communicate with Nutanix services for operations such as management, updates, and licensing.

Ensuring that this address can be resolved allows the cluster to interact properly with the Nutanix cloud infrastructure and services.

Reference: Refer to the Nutanix documentation on network and DNS requirements for NC2 deployments, specifically the addresses that need to be resolvable for proper functionality.

After the NC2 free trial expires, to continue using all features of NC2 on existing clusters, the administrator needs to switch to a paid subscription plan.

A paid subscription ensures uninterrupted access to the full range of features and support for NC2 clusters.

Without switching to a paid plan, the features might be limited, and support may not be available, impacting the cluster's operations and management.

Reference: Refer to the Nutanix billing and subscription documentation for details on switching from a trial to a paid plan and the benefits associated with paid subscriptions.

Upon creation, each node within an AWS NC2 cluster has 3 Amazon Elastic Block Store (EBS) volumes attached.

These volumes are used for different purposes, such as operating system storage, Nutanix services, and user data storage.

The number of EBS volumes is designed to ensure adequate storage performance and capacity for the NC2 cluster's operations and workload demands.

Reference: Refer to the Nutanix documentation on NC2 cluster setup and AWS EBS volume configurations to confirm the details on the number and purpose of EBS volumes attached to each node.

Traffic from the on-premises network is not permitted by VM and Management security groups:

Ensure that the security groups assigned to the VMs and management interfaces in AWS allow inbound traffic from the on-premises network. Without appropriate security group rules, the traffic will be blocked.

The AWS VPC traffic is blocked by a firewall in the on-premises network:

Check if the firewall on the on-premises network is configured to allow traffic from the AWS VPC. Firewalls may have restrictive rules that block incoming traffic, preventing communication.

Reference: Refer to AWS documentation on security groups and firewalls and Nutanix documentation on configuring networking for NC2 clusters.

Enable IGMP snooping on the AHV hosts:

IGMP (Internet Group Management Protocol) snooping is a feature that listens to IGMP traffic between hosts and routers. By enabling IGMP snooping on the AHV (Acropolis Hypervisor) hosts, the switch can intelligently forward multicast traffic only to the ports that have requested it.

This reduces unnecessary multicast traffic on the network and prevents congestion by ensuring that multicast packets are only delivered to the appropriate endpoints.

Reference: Refer to the Nutanix documentation on network configuration and best practices for managing multicast traffic.

The administrator has not created the necessary Security Group:

The error message indicates that the creation of network interfaces in a shared subnet requires specifying a security group. This means that the necessary security group has not been created or assigned to the network interfaces.

Creating the appropriate security group and ensuring it is associated with the network interfaces during cluster deployment should resolve this issue.

Reference: Refer to AWS documentation on security groups and network interface configuration and Nutanix documentation on prerequisites for deploying NC2 clusters in an existing AWS VPC.

Route tables for cloud subnets contain incorrect route entries:

If the route tables associated with the cloud subnets contain incorrect route entries, the NC2 cluster might not be able to reach the necessary AWS services or endpoints. Correct route entries are crucial for ensuring proper communication between the NC2 cluster and the underlying AWS infrastructure.

IAM roles and policies are incorrectly configured:

Incorrectly configured IAM roles and policies can prevent NC2 from making API calls to AWS services. These roles and policies must be properly set up to allow the necessary permissions for NC2 to interact with AWS resources and perform required operations.

Reference: Refer to the AWS documentation on route table configuration and IAM roles and policies, and Nutanix documentation on NC2 cloud connectivity and permissions.

Gateway Endpoint:

A Gateway Endpoint in AWS allows you to connect to supported AWS services privately without going through the public internet. This setup provides secure and efficient connectivity directly from the corporate VPC to the required AWS services.

Gateway Endpoints support services such as Amazon S3 and DynamoDB and are ideal for scenarios where private connectivity to these services is needed.

Reference: Refer to the AWS documentation on VPC endpoints, specifically Gateway Endpoints, and the Nutanix documentation on configuring private connectivity for NC2 deployments.