AWS Certified Advanced Networking Specialty Practice Exam

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Prepare for the AWS Certified Advanced Networking Specialty Exam with detailed flashcards and multiple-choice questions. Each question includes hints and explanations. Ace your exam with confidence!

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How many Internet Protocol Security (IPsec) tunnels are available for one Virtual Private Network (VPN) connection?

The correct answer is: 2

A Virtual Private Network (VPN) connection in AWS can utilize two Internet Protocol Security (IPsec) tunnels. This design is implemented to ensure high availability and redundancy. Each tunnel provides a separate encrypted connection between your on-premises network and the AWS cloud, allowing for continuous communication even if one tunnel were to fail. The concept of having two IPsec tunnels is crucial for providing a failover mechanism. If one tunnel experiences an issue, traffic can continue to flow through the other tunnel without interruption, thus safeguarding against potential downtime. This setup is particularly beneficial for enterprises that rely on consistent connectivity for critical applications. With the two IPsec tunnels, AWS supports dynamic routing protocols, such as Border Gateway Protocol (BGP), to facilitate automatic failover operations. The dual-tunnel approach also enables load balancing of traffic, enhancing overall network efficiency. This redundancy and load balancing feature is a key aspect of cloud environments designed for robustness and reliability.