Amazon Web Services Updated SOA-C02 Exam Questions and Answers by jannat

To resolve DNS names for on-premises resources from EC2 instances in a VPC, you use Amazon Route 53 Resolver outbound endpoints to forward DNS queries to on-premises DNS servers.

From the Route 53 Resolver documentation:

Resolver outbound endpoints allow DNS queries from resources in your VPC to be forwarded to DNS servers in your on-premises network over Direct Connect or VPN.

In AWS, each subnet has a fixed CIDR block, and the number of available IP addresses is determined by this block. For example, a /28 subnet provides 16 IP addresses, but 5 are reserved by AWS, leaving 11 usable IPs.

Since the subnet is already at capacity:

Create a New Subnet:

Choose a CIDR block that doesn't overlap with existing subnets.

Ensure it's within the VPC's CIDR range.

Launch additional EC2 instances in this new subnet.

This approach allows for the deployment of more instances without modifying existing subnets.

Increasing the size of the 1 GiB EBS volumes will increase the IOPS capacity of the volumes, which will improve the I/O performance of the EBS volumes. This option does not require any changes to the instance types or EBS volume types, so it can be done quickly without the need for lengthy acceptance tests to validate that the company's applications will function properly.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/requesting-ebs-volume-modifications.html

To provision AWS accounts for each team with a defined baseline and governance guardrails in a scalable and efficient way, using AWS Control Tower is the best solution.

AWS Control Tower:

AWS Control Tower provides a straightforward way to set up and govern a secure, multi-account AWS environment based on best practices.

It uses Account Factory, a feature that automates the creation of new AWS accounts with predefined configurations.

Creating Accounts with Control Tower:

Navigate to the AWS Control Tower console.

Use Account Factory to create a new account.

Customize the account template to include the necessary configurations, such as organizational units (OUs), guardrails, and baselines.

Advantages:

Ensures consistent security and compliance across all accounts.

Automates account creation and configuration, saving time and reducing errors.

AWS Control Tower

Setting Up Account Factory