All SOA-C02 Test Inside Amazon Web Services Questions

To securely connect to Amazon S3 buckets from Amazon EC2 instances over a private connection without incurring additional costs, you can use a gateway VPC endpoint for S3. This method allows you to create a single gateway VPC endpoint for all S3 buckets in the same region, ensuring secure, private communication.

Create a Gateway VPC Endpoint:

Navigate to the VPC console.

In the navigation pane, choose "Endpoints" and then click "Create Endpoint".

Select "AWS services" and then choose "com.amazonaws..s3" from the service name dropdown.

Select the VPC in which to create the endpoint and the appropriate route tables.

Click "Create endpoint".

Update the Route Tables:

The gateway VPC endpoint will automatically update the selected route tables to include routes that direct S3 traffic through the endpoint.

Ensure that the route tables associated with your subnets include routes for the S3 service pointing to the gateway VPC endpoint.

Verify the Configuration:

Ensure that instances in the VPC can access the S3 buckets using private IP addresses.

Check the routing configuration to confirm that traffic to S3 is routed through the gateway VPC endpoint.

Gateway VPC Endpoints for Amazon S3

Creating a Gateway Endpoint

To deliver digital content to authorized users through CloudFront while restricting unauthorized access, you can use an origin access identity (OAI) with signed URLs.

Store Content in S3 with Public Access Blocked:

Ensure the S3 bucket has public access blocked.

Navigate to the S3 console, select the bucket, and configure the "Block Public Access" settings.

To ensure that the Auto Scaling group scales out when CPU utilization rises above 50%, the administrator should configure the Auto Scaling group to dynamically scale based on demand. This is achieved by setting up a scaling policy that triggers based on specific CloudWatch alarms—like CPU utilization exceeding 50%. This dynamic scaling method directly responds to changes in workload, ensuring that resources are allocated efficiently and promptly as demand increases. Option C is the correct answer, aligning with best practices for managing EC2 Auto Scaling based on real-time metrics. Further guidance is available in AWS documentation on dynamic scaling Dynamic Scaling for EC2.

When receiving an InstanceLimitExceeded error in a participant account of a shared VPC, you need to request an instance quota increase from the participant account.

Requesting a Quota Increase:

Open the AWS Service Quotas console in the participant account.

In the navigation pane, choose "AWS services" and select "Amazon EC2."

Select the quota you need to increase, such as "Running On-Demand Standard (A, C, D, H, I, M, R, T, Z) instances."

Click "Request quota increase" and specify the desired limit.

Quota Management in AWS Organizations:

While shared VPCs allow resources to be used across accounts, quota limits are still managed per account.

Each participant account must manage its own quotas independently.

Service Quotas

Requesting a Quota Increase