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| Section | Objectives |
|---|---|
| Topic 1: Prepare the AWS Cloud Environment | - Prepare the AWS cloud environment
|
| Topic 2: Configuring an NC2 on AWS Environment | - Configure cloud networking and security
|
| Topic 3: Managing an NC2 on AWS Environment | - Perform cluster backup and recovery
|
| Topic 4: Deploying an NC2 on AWS Environment | - Deploy the cloud cluster
|
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質問 # 89
An administrator has been tasked with ensuring NC2 VMs are able to access AWS resources. The NC2 VM traffic must not traverse the internet.
in which two ways would the administrator achieve this? (Choose two.)
正解：B、D
解説：
To ensure that NC2 VMs can access AWS resources without traversing the internet, the administrator can use AWS VPC Peering and Interface Endpoints. Both methods ensure that traffic stays within the AWS network, maintaining security and efficiency.
* Interface Endpoint:
* Interface Endpoints allow you to privately connect your VPC to supported AWS services. They use AWS PrivateLink to route traffic directly to services within the AWS network, bypassing the public internet.
* Steps:
* Create an interface endpoint for the required service in the AWS VPC console.
* Ensure the security groups and route tables are configured to allow traffic to the interface endpoint.
* VPC Peering:
* VPC Peering allows the routing of traffic between VPCs using private IP addresses, without the need for internet gateways, NAT devices, or VPN connections.
* Steps:
* Create a VPC peering connection between the VPCs.
* Update the route tables to direct traffic between the peered VPCs.
* Ensure security group rules allow the necessary traffic between VPCs.
AWS VPC Peering Documentation
AWS Interface Endpoint Documentation
Nutanix Cloud Clusters on AWS Administration Guide
質問 # 90
Which service enables the monitoring of key metrics on various AWS services, inducing EC2, EBS, and VPC for an NC2 cluster deployments?
正解：C
解説：
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.
Reference:
Amazon CloudWatch Documentation
Nutanix Cloud Clusters on AWS Administration Guide
AWS Monitoring Best Practices
質問 # 91
An organization wants to control network traffic at the individual User VM (UVM) subnet level.
Which action will help achieve this goal?
正解：C
解説：
To control network traffic at the individual User VM (UVM) subnet level, creating a custom security group is the appropriate action. This approach allows for fine-grained control over inbound and outbound traffic rules that can be applied to specific subnets or individual instances within those subnets.
Custom Security Group:
Custom security groups enable administrators to define specific traffic rules tailored to the needs of individual subnets or VMs. This includes specifying allowed IP ranges, ports, and protocols.
By applying these custom security groups to the UVMs, the organization can control access and enhance security according to their policies and requirements.
Steps to Create a Custom Security Group:
Navigate to the AWS Management Console and go to the VPC service.
Select "Security Groups" under the "Security" section.
Click on "Create Security Group" and define the name, description, and VPC.
Add inbound and outbound rules according to the desired traffic control policies.
Attach the custom security group to the UVMs or subnets in question.
Reference:
Nutanix Cloud Clusters on AWS Administration Guide
AWS Security Group Documentation
Nutanix Best Practices for Security Groups
質問 # 92
An administrator has recently deployed an NC2 on AWS cluster in the North Virginia region in availability zone us-east-1z. The clusters UUID is 0005F487-4962-91EA-4C98-C4284D123835.
The cluster is consuming IPs from a 10.78.2.0/24 range.
The AWS VPC has these available CIDR ranges:
* 70.73.0.0/16
* 10.79.107.0/24
* 10.0.0.0/22
The following subnets have been configured in the NC2 AWS VPC:
The following tags have been applied to a Custom Network Security Group:
The Custom Network Security Group is allowing all inbound traffic from the 10.0.0.0/22 network. Which two subnets would be able to receive inbound traffic from AWS instances on a 10.0.0.0/22 network segment " ?
(Choose two.)
正解：A、B
解説：
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.
Nutanix Clusters on AWS Administration Guide
AWS VPC and Subnet documentation
Network Security Group rules configuration in Nutanix documentation
質問 # 93
An administrator wants to use centralized routing and support non-AWS prefixes (CIDR ranges) without using NAT. Which two additional components are required to ensure appropriate routing into and out of the overlay network?
正解：B、C
解説：
In an NC2 architecture usingFlow Virtual Networking (FVN)for centralized routing, the goal is to allow User VMs to communicate with external networks using their original, non-NATed IP addresses. To achieve this when connected to an AWS Transit Gateway, the routing infrastructure must be manually updated. First, astatic route must be added to the cluster ' s AWS VPC route tableto direct traffic destined for non-AWS prefixes toward the Transit Gateway. Second, astatic route must be added to the Transit Gateway ' s own route tableto ensure it knows that traffic for the Nutanix overlay CIDR should be sent back to the Cluster AWS VPC. This bidirectional static routing ensures that traffic can flow seamlessly between the Nutanix overlay and on-premises or other VPC environments without the need for address translation.
質問 # 94
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