Amazon Web Services SOA-C02 Dumps Questions Answers

When using Amazon Route 53 to manage DNS records for a website hosted behind an Application Load Balancer (ALB), an ALIAS record should be used for the apex domain (e.g., example.com). ALIAS records are designed to map domain names to AWS resources like ALBs, CloudFront distributions, and S3 buckets, providing efficient DNS resolution.

Login to AWS Management Console:

Open the Route 53 console at Amazon Route 53 Console.

Select Hosted Zone:

Select the hosted zone for your domain.

Create Record Set:

Click on Create record.

In the Record name field, leave it blank to indicate the apex domain.

Select ALIAS as the record type.

Choose the Alias Target to be your Application Load Balancer from the dropdown menu.

Save Record Set:

Review the settings and click Create records.

References:

Choosing Between Alias and Non-Alias Records

Routing Traffic to an ELB Load Balancer

To resolve issues with high disk I/O during the bootstrap process:

Increase EBS Volume IOPS: Higher IOPS allows the EBS volume to handle more input/output operations per second, which is critical for high I/O demands like downloading large Docker images.

Increase EBS Volume Throughput: Boosting throughput allows for faster data transfer rates, which is useful when the workload requires sustained high data throughput during initialization.

Increasing the instance size or changing the instance type is not necessary if the root cause is related specifically to EBS performance. Nitro instances generally provide higher performance and are well-suited for high I/O tasks.

Access to Amazon DynamoDB requires credentials. Those credentials must have permissions to access AWS resources, such as an Amazon DynamoDB table or an Amazon Elastic Compute Cloud (Amazon EC2) instance. The following sections provide details on how you can use AWS Identity and Access Management (IAM) and DynamoDB to help secure access to your resources. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/authentication-and-access-control.html