Selected SOA-C02 AWS Certified Associate Questions Answers

Update AWS Account Name:

The AWS account name can only be changed by the root user of the account.

Steps:

Sign in to the AWS Management Console using the root user credentials.

Navigate to the "My Account" page.

Update the account name field and save the changes.

Cluster Placement Group:

Cluster placement groups are used to ensure low-latency networking between EC2 instances. They place instances physically close to each other within the same Availability Zone.

Steps:

Go to the AWS Management Console.

Navigate to EC2 and select "Placement Groups."

Create a new cluster placement group.

Back up the existing EC2 instance to an AMI.

Launch new EC2 instances from the AMI into the cluster placement group.

Ensure all instances are in the same Availability Zone.

The rejected traffic in the flow logs is due to the network ACL associated with the subnet not allowing outbound traffic for the ephemeral port range.

Network ACLs:

Network ACLs act as a firewall for controlling traffic in and out of one or more subnets.

By default, NACLs allow all inbound and outbound traffic, but custom NACLs require specific rules to allow traffic.

Ephemeral Ports:

Ephemeral ports are temporary ports used for client-side communication. The default range is 1024-65535.

Ensure that the network ACL allows outbound traffic on these ports.

Steps to Resolve:

Check the network ACL rules for the associated subnet.

Add outbound rules to allow traffic from the ephemeral port range (1024-65535).

References:

Amazon VPC Network ACLs

The most operationally efficient solution is to use the organization ARN to share the AMI across all accounts within AWS Organizations.

AMI Sharing with Organization ARN: AWS allows you to share AMIs with an entire AWS Organization by specifying the organization’s ARN, simplifying access management for multiple accounts.

Efficient Management: This approach eliminates the need to share AMIs individually with each account or make them public, and it avoids the complexity of using snapshots.

Making the AMI public is not secure, and using AWS Marketplace or snapshots does not provide the operational efficiency required.