SOA-C02 VCE Exam Download

Specifying the capacity-optimized allocation strategy for Spot Instances and adding more instance types to the Auto Scaling group is the best action to meet the requirements. Increasing the size of the instances in the Auto Scaling group will not necessarily help with the launch time or reduce interruptions, as the Spot Instances could still be interrupted even with larger instance sizes.

To refer to resources created by the first CloudFormation template in the second template with minimal administrative effort, using the export and import functionality is the most efficient approach.

Exporting Outputs in the First Template:

In the first CloudFormation template, add an Outputs section to export the required values.

Use the Export field to specify the name of the exported value.

Example:

Outputs:

VPCID:

Description: The VPC ID

Value: !Ref MyVPC

Export:

Name: VPCID

Importing Values in the Second Template:

In the second CloudFormation template, use the Fn::ImportValue function to import the exported values from the first template.

Example:

Resources:

MySubnet:

Type: AWS::EC2::Subnet

Properties:

VpcId: !ImportValue VPCID

Efficiency and Best Practices:

This method ensures a clean separation of resources and allows easy reference to outputs from other stacks.

It simplifies the management and deployment process by leveraging CloudFormation's built-in export and import mechanisms.

References:

AWS CloudFormation Exporting Stack Output Values

AWS CloudFormation Importing Values

To restrict EC2 resource deployment in a specific region and restrict root credentials usage:

Create Service Control Policies (SCPs):

Use AWS Organizations to create SCPs that restrict actions for all member accounts.

Create an SCP to deny the creation of EC2 instances in the ap-southeast-2 region.

Create an SCP to deny the use of root credentials in member accounts.

Step-by-Step Explanation:

Understand the Problem:

Ensure all users in the organization have read-level access to a specific S3 bucket.

The data should not be accessible outside the organization.

Analyze the Requirements:

Grant read access to users within the organization.

Prevent access from outside the organization.

Evaluate the Options:

Option A: Specify "*" as the principal and PrincipalOrgId as a condition.

This grants access to all AWS principals but restricts it to those within the specified organization using the PrincipalOrgId condition.

Option B: Specify all account numbers as the principal.

This is impractical for a large organization and requires constant updates if accounts are added or removed.

Option C: Specify PrincipalOrgId as the principal.

The PrincipalOrgId condition must be used within a policy, not as a principal.

Option D: Specify the organization's management account as the principal.

This grants access only to the management account, not to all users within the organization.

Select the Best Solution:

Option A: Using "*" as the principal with the PrincipalOrgId condition ensures all users within the organization have the required access while preventing external access.

References:

Amazon S3 Bucket Policies

AWS Organizations Policy Examples

Using "*" as the principal with the PrincipalOrgId condition efficiently grants read access to the S3 bucket for all users within the organization.