Pass the Nutanix Nutanix Certified Professional (NCP) NCP-CI-AWS Questions and answers with CertsForce

The alert indicates a potential issue with the VPC/Subnet settings, preventing the cluster nodes from contacting Nutanix services.

To resolve this, the administrator needs to ensure that the subnet 10.0.1.0/24, which is assigned for Bare metal hosts, has an outbound Internet connection.

This connection is necessary for the cluster nodes to communicate with external Nutanix services for updates, license validation, and other essential operations.

Verify that there are appropriate route tables and security group rules allowing outbound traffic to the Internet from the 10.0.1.0/24 subnet.

Ensure that there is either an Internet Gateway (IGW) attached to the VPC or a NAT Gateway configured if using private subnets.

References:Refer to the Nutanix documentation and AWS VPC configuration guides to ensure proper Internet connectivity and routing setups.

When creating an NC2 cluster in AWS, the account used to run the CloudFormation script requires specific permissions to ensure the deployment is successful. The required permissions are:

IAMFullAccess: Provides full access to IAM resources.

AmazonEC2FullAccess: Allows full access to EC2 resources.

AWSCIoudFormationFullAccess: Grants full access to manage AWS CloudFormation stacks.

These permissions are necessary to create, manage, and deploy the required AWS resources for the NC2 cluster.

References:

Nutanix Support & Insights

AWS IAM Documentation

To provide VMs with outbound internet connectivity in AWS using a private subnet, the administrator needs to create the following components in the VPC:

Private Subnet: A private subnet is required to house the VMs that need outbound internet access but do not require direct inbound access from the internet.

NAT Gateway: A NAT (Network Address Translation) Gateway is necessary to allow instances in the private subnet to connect to the internet or other AWS services while preventing the internet from initiating a connection with those instances.

Public EIP (Elastic IP Address): An EIP is associated with the NAT Gateway to provide a persistent public IP address that allows outbound internet traffic from the private subnet to be routed correctly.

Route Table: A route table is configured to route traffic from the private subnet to the NAT Gateway for outbound internet access.

References:

AWS NAT Gateway Documentation

AWS VPC Subnet Basics

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.

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

Before accessing the Nutanix Cloud Clusters (NC2) console, the first step is to create a My Nutanix account.

This account serves as the primary gateway for managing and accessing Nutanix services, including NC2.

Once the account is created, users can log in to the Nutanix portal, where they can manage their subscriptions, start trials, and access various Nutanix services, including the NC2 console.

References:Refer to the Nutanix documentation on getting started with NC2 and the My Nutanix account creation process.

To ensure that every NC2 on AWS cluster deployed allows full access from the on-premises CVM subnet efficiently, the administrator should create a custom AWS Network Security Group.

Use a key value oftag:nutanix:clusters:externalfor the security group, and set the inbound allow address to the on-premises subnet.

This approach leverages AWS tags to manage security group rules dynamically and ensures that the necessary access permissions are applied automatically to all clusters with the specified tag.

This method reduces the need for manual configuration of each cluster's security group, streamlining the process for a test/dev environment where clusters are frequently created and destroyed.

References:Refer to the AWS documentation on Network Security Groups and Nutanix documentation on best practices for securing NC2 clusters.

When selecting the NC2 subscription plan from the Nutanix Billing portal, the available options include:

Pay-as-you-Go (PayG): A flexible payment option where users are billed based on their actual usage, providing cost efficiency for variable workloads.

Bring your own License (BYOL): Allows users to utilize existing Nutanix licenses they have purchased, offering a cost-effective way to leverage existing investments in Nutanix software.

References:Refer to the Nutanix billing and subscription documentation for detailed descriptions of subscription plans and their benefits.

To determine which subnets would be able to receive inbound traffic from AWS instances on a 10.0.0.0/22 network segment, we need to look at the configured subnets and their CIDR ranges, as well as the custom network security group's inbound rules.

Available CIDR ranges in VPC:

70.73.0.0/16

10.79.107.0/24

10.0.0.0/22

Configured Subnets in NC2 AWS VPC:

VDI: 10.78.130.0/22

SQL: 10.78.3.0/24

Server01: 10.78.2.0/24

Server02: 10.79.120.0/24

Tier01: 10.19.101.0/24

Custom Network Security Group Inbound Rule:

Allows all inbound traffic from 10.0.0.0/22.

Given that the custom network security group is allowing inbound traffic from the 10.0.0.0/22 network, we need to identify which of the configured subnets fall within this allowed range.

Analysis:

The subnets 10.78.130.0/22, 10.78.3.0/24, 10.78.2.0/24, 10.79.120.0/24, and 10.19.101.0/24 do not overlap with 10.0.0.0/22. Therefore, none of these subnets would naturally fall within the 10.0.0.0/22 range directly.

However, since the question is about receiving inbound trafficfromthe 10.0.0.0/22 network and considering security group rules, all subnets mentioned can technically receive traffic if the inbound rules are configured correctly, but since we are strictly asked about the configuration from the image and the overlap in the ranges:

Server01 (10.78.2.0/24)andTier01 (10.19.101.0/24)will receive traffic because their CIDR ranges do not conflict with the 10.0.0.0/22 range, thus allowing traffic without additional restrictions.

References:

Nutanix Clusters on AWS Administration Guide

AWS VPC and Subnet documentation

Network Security Group rules configuration in Nutanix documentation

In Nutanix Cloud Integration with AWS, specifically version 6.7, the role that allows full access to clusters created within an organization is the Organization Administrator.

The Organization Administrator role has the highest level of privileges within an organization, enabling the user to manage all aspects of the clusters, including creation, modification, and deletion.

This role is designed to oversee and control the entire organization's resources, ensuring comprehensive management capabilities over all clusters and associated resources.

References:Refer to the Nutanix documentation on roles and permissions for NC2 on AWS for further details.

When creating user VM subnets for multiple NC2 clusters in AWS, the best approach is to create guest-VM subnets for each cluster. This ensures that each cluster has its own dedicated subnets, which simplifies network management and avoids potential IP conflicts.

Advantages of Dedicated Subnets:

Isolation: Each cluster operates in its own subnet, providing better isolation and security.

Management: Easier to manage and troubleshoot network issues when each cluster has its own subnets.

Scalability: More scalable as each subnet can be managed and expanded independently.

Steps to Create Guest-VM Subnets:

Identify the IP range for each subnet.

In the AWS VPC console, create a new subnet for each cluster using the identified IP ranges.

Associate the new subnets with the respective clusters during or after the cluster deployment process.

Why Not Shared Subnets:

Shared subnetscould lead to IP conflicts and make network management more complex, especially as the number of clusters grows.

References:

Nutanix Cloud Clusters on AWS Administration Guide

AWS VPC Subnet Creation Documentation