AWS Solutions Architect Associate Practice Test

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Study for the AWS Solutions Architect Associate Test. Our comprehensive quiz offers multiple-choice questions that replicate the exam environment. Benefit from detailed explanations and hints. Prepare confidently for your AWS certification exam!

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What type of DNS name can only be resolved within Amazon EC2?

Internal DNS Name
External DNS Name
Global DNS Name
Private DNS Name

The correct answer is: Internal DNS Name

The correct choice is the type of DNS name that can only be resolved within Amazon EC2, which refers to an internal DNS name. Internal DNS names are specifically designed to be accessible only within the Amazon Virtual Private Cloud (VPC) environment. This means that instances or resources configured with an internal DNS name can communicate with one another using that name without exposing those names to the public internet. The internal DNS system allows for ease of management and connectivity between EC2 instances, as it resolves to private IP addresses that remain invisible outside the VPC. This is particularly beneficial for security and network architecture, enabling applications and services to interact without interception or exposure to external factors. In contrast, the other options refer to DNS naming conventions that either enable public access or have broader implications. External DNS names resolve to public IP addresses and can be accessed from outside the VPC, while global DNS names often refer to services that provide worldwide reachability. Private DNS names may pertain to certain specific configurations but do not exclusively exist within the EC2 context as internal DNS names do. Thus, internal DNS names are uniquely suited for internal EC2 communication.