Allow Simple AD to Resolve Names Using DNS Servers

Answer - C.

If you want your Simple AD to resolve names using both DNS servers within your VPC and private DNS servers outside of your VPC, you can do this using a DHCP options set.

For more information on DNS with Simple AD please visit the below URL:

The correct answer is C. DHCP options set.

Here's why:

Simple AD is an Active Directory-compatible directory service from AWS Directory Service that enables you to manage users and groups, as well as authenticate and authorize access to AWS resources and applications. Simple AD provides a subset of Active Directory functionality, and it is deployed using AWS-managed infrastructure.

When Simple AD is deployed in a VPC, you can configure DNS settings to enable name resolution for resources within the VPC. By default, Simple AD uses its own DNS servers for name resolution. However, in some cases, you may want to use both DNS servers within your VPC and private DNS servers outside of your VPC for name resolution.

To achieve this, you can configure DHCP options set for your VPC to specify the DNS servers that should be used for name resolution. DHCP options set is a collection of options that are applied to all instances that are launched in a VPC. It includes settings such as domain name, DNS servers, and NTP servers.

By configuring the DHCP options set for your VPC to include both the DNS servers within your VPC and private DNS servers outside of your VPC, you can ensure that Simple AD can resolve names using both sets of DNS servers.

Option A, DNSName Resolution, is not a valid AWS service or feature.

Option B, DNSNameSet, is not a valid AWS service or feature.

Option D, Route53, is a DNS service provided by AWS that can be used for name resolution in a VPC. However, it is not directly related to Simple AD or the ability to resolve names using both DNS servers within your VPC and private DNS servers outside of your VPC.