SOA-C02 Exam Dumps - AWS Certified SysOps Administrator - Associate (SOA-C02)

Step-by-Step Explanation:

Understand the Problem:

The web application experiences performance degradation during random periods of increased traffic.

Analyze the Requirements:

Implement a scalable solution to handle varying traffic loads.

Maintain application performance during traffic spikes.

Evaluate the Options:

Option A: Monitor application latency with CloudWatch alarm and increase instance size.

Manually resizing instances is not efficient for handling random traffic spikes.

Option B: Use EventBridge rule to add EC2 instance to ALB.

This approach is not as efficient as Auto Scaling for dynamic traffic management.

Option C: Deploy to an Auto Scaling group with target tracking scaling policy.

Automatically adjusts the number of instances based on traffic demand.

Ensures consistent application performance by scaling in response to traffic changes.

Option D: Deploy to an Auto Scaling group with scheduled scaling policy.

Suitable for predictable traffic patterns but not for random traffic spikes.

Select the Best Solution:

Option C: Using an Auto Scaling group with a target tracking scaling policy ensures the application scales dynamically based on traffic, maintaining performance.

Amazon EC2 Auto Scaling

Target Tracking Scaling Policies

Auto Scaling with a target tracking policy provides a robust solution for handling random traffic increases by dynamically adjusting the number of instances.

Here are the steps to configure Amazon EventBridge to meet the above requirements:

Log in to the AWS Management Console by using the AWS Management Console shortcut from the VM desktop. Make sure that you are logged in to the desired AWS account.

Go to the EventBridge service in the us-east-2 Region.

In the EventBridge service, navigate to the "Event buses" page.

Click on the "Create event bus" button.

Give a name to your event bus, and select "default" as the event source type.

Navigate to "Rules" page and create a new rule named "RunFunction"

In the "Event pattern" section, select "Schedule" as the event source and set the schedule to run every 15 minutes.

In the "Actions" section, select "Send to Lambda" and choose the existing AWS Lambda function named "LogEventFunction"

Create another rule named "SpotWarning"

In the "Event pattern" section, select "EC2" as the event source, and filter the events on "EC2 Spot Instance interruption"

In the "Actions" section, select "Send to SNS topic" and create a new standard Amazon SNS topic named "TopicEvents"

In the "Input Transformer" section, set the Input Path to {“instance” : “$.detail.instance-id”} and Input template to “The EC2 Spot Instance has been interrupted on account.

Now all Amazon EC2 events in the default event bus will be replayable for past 90 days.

Note:

You can use the AWS Management Console, AWS CLI, or SDKs to create and manage EventBridge resources.

You can use CloudTrail event history to replay events from the past 90 days.

You can refer to the AWS EventBridge documentation for more information on how to configure and use the service: https://aws.amazon.com/eventbridge/

https://docs.aws.amazon.com/AmazonS3/latest/userguide/object-lock-overview.html In governance mode, users can 't overwrite or delete an object version or alter its lock settings unless they have special permissions. With governance mode, you protect objects against being deleted by most users, but you can still grant some users permission to alter the retention settings or delete the object if necessary. You can also use governance mode to test retention-period settings before creating a compliance-mode retention period. In compliance mode, a protected object version can't be overwritten or deleted by any user, including the root user in your AWS account. When an object is locked in compliance mode, its retention mode can't be changed, and its retention period can't be shortened. Compliance mode helps ensure that an object version can't be overwritten or deleted for the duration of the retention period.

Here are the steps to update an existing AWS CloudFormation stack:

Log in to the AWS Management Console and navigate to the CloudFormation service in the us-east-2 Region.

Find the existing stack named 1700182 and click on it.

Click on the "Update" button.

Choose "Replace current template" and upload the updated CloudFormation template from the Amazon S3 bucket named "cloudformation-bucket"

In the "Parameter" section, update the EC2 instance type to us-east-t2.nano and add the IP address range 192.168.100.0/30 for SSH access.

Replace the instance profile IAM role with IamRoleB.

In the "Capabilities" section, check the checkbox for "IAM Resources"

Choose the role CFServiceR01e and click on "Update Stack"

Wait for the stack to be updated.

Once the update is complete, navigate to the stack and click on the "Stack options" button, and select "Prevent updates to prevent accidental deletion"

To get the value of the Prodlnstanceld , navigate to the "Outputs" tab in the CloudFormation stack and find the key "Prodlnstanceld". The value corresponding to it is the value that you need to enter in the text box below.

Note:

You can use AWS CloudFormation to update an existing stack.

You can use the AWS CloudFormation service role to deploy updates.

You can refer to the AWS CloudFormation documentation for more information on how to update and manage stacks: https://aws.amazon.com/cloudformation/

Here are the steps to configure an Amazon S3 bucket to serve a static error page in the event of a failure at the primary site:

Log in to the AWS Management Console and navigate to the S3 service in the us-east-2 Region.

Find the existing S3 bucket named lab-751906329398-26023898.com and click on it.

In the "Properties" tab, click on "Static website hosting" and select "Use this bucket to host a website".

In "Index Document" field, enter the name of the object that you want to use as the index document, in this case, "index.html"

In the "Permissions" tab, click on "Block Public Access", and make sure that "Block all public access" is turned OFF.

Click on "Bucket Policy" and add the following policy to allow public read access:

{

"Version": "2012-10-17",

"Statement": [

{

"Sid": "PublicReadGetObject",

"Effect": "Allow",

"Principal": "*",

"Action": "s3:GetObject",

"Resource": "arn:aws:s3:::lab-751906329398-26023898.com/*"

}

]

}

Now navigate to the Amazon Route 53 service, and find the existing hosted zone named lab-751906329398-26023898.com.

Click on the "A record" and update the routing policy to "Primary - Failover" and add the existing ALB as the primary record.

Click on "Create Record" button and create a new secondary failover alias record for the domain lab-751906329398-26023898.com that routes traffic to the existing S3 bucket.

Now, when the primary site (ALB) goes down, traffic will be automatically routed to the S3 bucket serving the static error page.

Note:

You can use CloudWatch to monitor the health of your ALB.

You can use Amazon S3 to host a static website.

You can use Amazon Route 53 for routing traffic to different resources based on health checks.

You can refer to the AWS documentation for more information on how to configure and use these services:

https://aws.amazon.com/s3/

https://aws.amazon.com/route53/

https://aws.amazon.com/cloudwatch/

Graphical user interface, application, Teams Description automatically generated

AWS Secrets Manager allows you to store, manage, and automatically rotate database credentials. This service is designed to be used for such requirements efficiently.

Store Database Credentials in AWS Secrets Manager:

Open the AWS Secrets Manager console at AWS Secrets Manager Console.

Choose Store a new secret.

Select Credentials for RDS database and provide the database connection details and credentials.

Choose Next to configure the secret.

Configure Rotation:

Enable automatic rotation for the secret.

Set the rotation interval to 365 days.

Select or create a Lambda function that will be used to rotate the secret. AWS Secrets Manager provides a template for this function which can be customized if necessary.

Apply and Monitor:

Apply the changes and ensure that your application retrieves credentials from AWS Secrets Manager.

Monitor the rotation activity in Secrets Manager to ensure that the credentials are being rotated as expected.

AWS Secrets Manager

Rotating Your AWS Secrets Manager Secrets

AWS Single Sign-On (AWS SSO) provides a centralized interface to manage SSO access to multiple AWS accounts and business applications. AWS SSO integrates with AWS Organizations and supports SAML 2.0 identity providers, making it an ideal solution for centrally managing user access and permissions across multiple AWS accounts.

AWS Single Sign-On (AWS SSO):

AWS SSO allows you to manage SSO access and user permissions to all of your AWS accounts and applications.

It integrates seamlessly with AWS Organizations.

Integration with SAML 2.0 IdP:

AWS SSO supports integration with third-party SAML 2.0 identity providers.

This allows centralized management of user identities and access.

Steps to Implement:

Enable AWS SSO in your AWS Organizations management account.

Configure AWS SSO to connect with your third-party SAML 2.0 IdP.

Assign user permissions and roles for each AWS account through AWS SSO.

AWS Single Sign-On

Integrating AWS SSO with SAML 2.0 Identity Providers

The least privilege required for reading encrypted data involves kms:Decrypt to decrypt, kms:DescribeKey to understand key properties, and kms:ListAliases if needed to identify the key alias.