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Which service enables the monitoring of key metrics on various AWS services, inducing EC2, EBS, and VPC for an NC2 cluster deployments?
Amazon CloudWatch is the service that enables the monitoring of key metrics on various AWS services, including EC2, EBS, and VPC, for NC2 cluster deployments.
Amazon CloudWatch:
Amazon CloudWatch provides monitoring for AWS cloud resources and applications. It collects and tracks metrics, collects and monitors log files, and sets alarms.
Specifically, for NC2 deployments, CloudWatch can be used to monitor key metrics such as CPU utilization, disk I/O, network I/O for EC2 instances, EBS volume performance, and VPC network traffic.
Features:
Metrics Monitoring: Collects and visualizes operational data in the form of metrics, including utilization, performance, and health.
Logs Monitoring: Collects log data, monitors it in real-time, and triggers alarms based on predefined thresholds.
Alarms: Notifies when operational performance thresholds are breached.
Integration with NC2:
By setting up CloudWatch, administrators can ensure they have visibility into the performance and health of their Nutanix clusters on AWS, aiding in proactive management and troubleshooting.
Amazon CloudWatch Documentation
Nutanix Cloud Clusters on AWS Administration Guide
AWS Monitoring Best Practices
An administrator is investigating reports of network congestion on their NC2 deployment.
As part of the investigation, a packet capture is taken from a group of user VMs. During the analysis of the packet capture, it is observed that user VMs are receiving multicast traffic unexpectedly.
What action should the administrator take to resolve the issue?
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.
To deploy NC2 in AWS using an existing VPC, which two AWS resources should be configured beforehand? (Choose two.)
To deploy NC2 in AWS using an existing VPC, the following AWS resources should be configured beforehand:
NAT Gateway: This allows instances in the private subnet to connect to the internet or other AWS services, while preventing the internet from initiating connections with those instances.
Public and Private Subnets: These are necessary to segregate the network traffic. Public subnets provide a direct route to the internet gateway, while private subnets are used for internal resources that do not need direct access to the internet.
An administrator is attempting to deploy an NC2 cluster.
The cluster configuration is as follows:
* Name - Cluster-1
* Nodes of type i4i.metal
* Replication Factor 2
* Existing VPC resources
* VPC - 10.0.0.0/16
* Subnets:
* Bare metal hosts: 10.0.1.0/24
* User VMs:10.0.2.0/24
* Public: 10.0.3.0/24
During the deployment process, the administrator notices the following alert:
What should the administrator do to ensure the cluster deployment does not fail?
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.
Reference: Refer to the Nutanix documentation and AWS VPC configuration guides to ensure proper Internet connectivity and routing setups.
Which two options are prerequisites for deploying an NC2 on AWS cluster? (Choose two.)
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.
