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Direct Connect Gateway

5 minutes 5 Questions

Direct Connect Gateway allows you to connect your on-premises networks to multiple Virtual Private Clouds (VPCs) across different AWS Regions using a single Direct Connect connection. This way, you can access resources in multiple VPCs without the need for multiple Direct Connect connections or VPC…

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AWS Certified Solutions Architect - Direct Connect Gateway Example Questions

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Question 1

A company has multiple VPCs in different AWS Regions. They require low-latency private connectivity between them using AWS Direct Connect gateway. What is the best solution?

Correct Answer: Create a Direct Connect Gateway and associate VPCs in multiple regions to it.

A Direct Connect Gateway allows private connectivity between VPCs in multiple regions using AWS Direct Connect. VPC Peering and VPN have higher latencies and are not suitable for low-latency requirements. Direct Connect without Direct Connect Gateway requires multiple connections, adding complexity. Transit Gateway connects VPCs in a central way but does not leverage Direct Connect.

Question 2

An organization uses Direct Connect Gateway for communication between VPCs across multiple AWS Regions. They intend to establish a connection that bypasses the public internet for communication between a data center and Amazon S3. What should they do?

Correct Answer: Activate a Direct Connect connection with a public virtual interface.

To connect a Direct Connect Gateway with Amazon S3 privately, you need a Direct Connect connection with a public virtual interface. A NAT Gateway and CloudFront do not provide a private link to S3 as required. VPN connections are between a data center and VPC, not between the data center and S3. Private and transit virtual interfaces do not apply for connections to S3.

Question 3

You work for an organization with offices in two different regions that has deployed VPCs within those regions using AWS Direct Connect Gateway. During a failover test, the office in Region A experienced an outage, leaving only the office in Region B operational. What is the best solution to maintain connectivity between the VPCs?

Correct Answer: Configure redundant Direct Connect connections between both regions.

Configuring redundant Direct Connect connections between the regions ensures high availability and provides load balancing. In case of an outage, the other Direct Connect connections would continue providing the necessary connectivity. Backup gateway, NAT gateways, and CloudFront do not address the failover issue. VPC Peering and VPN connections introduce additional complexity and are not optimal compared to redundant Direct Connect connections.

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