AWS Certified Associate SOA-C02 Reddit Questions

To fulfill the requirement of sharing the same data across multiple EC2 instances in multiple Availability Zones with scalability, the most appropriate solution is Amazon Elastic File System (EFS).

Deploy Amazon EFS:

Amazon EFS provides a scalable and fully managed NFS file system for use with AWS Cloud services and on-premises resources.

It is designed to grow and shrink automatically as you add and remove files, so your applications have the storage they need, when they need it.

Create Mount Targets:

Go to the EFS console and create a new file system.

Create mount targets in each subnet within your VPC across the multiple Availability Zones.

Attach the EFS file system to your EC2 instances by mounting the EFS file system using the mount target IP addresses or DNS names.

Scalability:

EFS can scale to petabytes without the need to provision storage in advance.

It provides high availability and durability, automatically replicating data across multiple Availability Zones.

References:

Amazon EFS Documentation

Creating EFS File Systems

To identify both tagged and untagged EC2 instances across multiple AWS Regions efficiently:

AWS Tag Editor: Tag Editor allows you to search for resources across your AWS account by tags, including both tagged and untagged resources.

Search Setup: In the Tag Editor, select all the Regions where the company operates. Specify the resource type as AWS::EC2::Instance to focus the search on EC2 instances.

View and Export Data: Execute the search to view all EC2 instances, along with their associated tags and instance IDs. This data can be exported for further analysis or reporting.

Using the Tag Editor is an operationally efficient way to quickly get a comprehensive view of resource tagging across multiple Regions, aiding in compliance and resource management tasks.

AWS OpsWorks is a configuration management service that provides managed instances of Chef and Puppet. This service is designed to work seamlessly with Chef recipes, making it the most operationally efficient solution for continuing to use existing Chef recipes after migrating applications to AWS.

Creating an OpsWorks Stack:

Open the AWS OpsWorks console at AWS OpsWorks Console.

Create a new stack and select Chef as the configuration management engine.

Adding Layers:

Add layers to the stack that represent different parts of your application. Each layer can have its own set of Chef recipes.

Assign instances to these layers as needed.

Deploying Chef Recipes:

Upload your existing Chef recipes to the OpsWorks stack.

Configure the layers to use these recipes during setup, deployment, and other lifecycle events.

References:

AWS OpsWorks

Working with Stacks

AWS Config can continuously monitor and record your AWS resource configurations. It provides AWS Config rules that automatically check the configuration of AWS resources and notify you of compliance and non-compliance.

Steps:

Enable AWS Config:

Open the AWS Config console.

Follow the steps to set up AWS Config if it is not already enabled.

Add AWS Managed Rules:

In the AWS Config console, choose "Rules".

Add the s3-bucket-public-read-prohibited managed rule.

Configure the rule to check all S3 buckets.

Set Up SNS Notifications:

Create an Amazon SNS topic.

Subscribe your email or other communication channels to the SNS topic.

In AWS Config, configure the rule to send notifications to the SNS topic whenever there is a compliance change.

This approach ensures operational efficiency as AWS Config will automatically monitor S3 buckets and notify you through SNS if any bucket becomes publicly accessible.

References:

AWS Config Managed Rules

Setting Up AWS Config