AWS (Amazon Web Services) Certification Practice Exam

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Dive into the AWS Certification Exam with our comprehensive quiz. Challenge yourself with multiple-choice questions designed to mimic the exam format. Each question includes detailed explanations to boost your understanding and help you ace your AWS Certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which statement is true regarding VPC subnets and their availability?

All subnets must be in the same availability zone
Subnets cannot span different availability zones
Subnets can be created independently of availability zones
Subnets in different availability zones can enhance reliability

The correct answer is: Subnets in different availability zones can enhance reliability

The statement regarding subnets in different availability zones enhancing reliability is correct. When subnets are distributed across multiple availability zones within a Virtual Private Cloud (VPC), it allows for increased fault tolerance and high availability. By having resources such as EC2 instances in different availability zones, a failure in one zone will not affect the availability of services running in another zone. This distribution mitigates the risk of a complete service outage and is a best practice for building resilient architectures on AWS. Subnets provide a way to segment the VPC’s IP address range for better organization, and they must be associated with a specific availability zone upon creation. This means that while subnets cannot span across availability zones, they can coexist in the same VPC and connect to each other through routing, enabling a flexible and fault-tolerant design.