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Exam AWS Certified Database - Specialty topic 1 question 350 discussion

Exam question from Amazon's AWS Certified Database - Specialty
Question #: 350
Topic #: 1
[All AWS Certified Database - Specialty Questions]

A company has a hybrid environment in which a VPC connects to an on-premises network through an AWS Site-to-Site VPN connection. The VPC contains an application that is hosted on Amazon EC2 instances. The EC2 instances run in private subnets behind an Application Load Balancer (ALB) that is associated with multiple public subnets. The EC2 instances need to securely access an Amazon DynamoDB table.

Which solution will meet these requirements?

  • A. Use the internet gateway of the VPC to access the DynamoDB table. Use the ALB to route the traffic to the EC2 instances.
  • B. Add a NAT gateway in one of the public subnets of the VPC. Configure the security groups of the EC2 instances to access the DynamoDB table through the NAT gateway.
  • C. Use the Site-to-Site VPN connection to route all DynamoDB network traffic through the on-premises network infrastructure to access the EC2 instances.
  • D. Create a VPC endpoint for DynamoDB. Assign the endpoint to the route table of the private subnets that contain the EC2 instances.
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Suggested Answer: C 🗳️
by fceb2c1 at March 3, 2024, 10:16 a.m.
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tsangckl
1 year, 1 month ago
Selected Answer: D
A VPC endpoint for DynamoDB enables Amazon EC2 instances in your VPC to use their private IP addresses to access DynamoDB with no exposure to the public internet. The EC2 instances do not require public IP addresses, and internet gateway, NAT device, VPN connection, or AWS Direct Connect connection is not required to communicate with DynamoDB.
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fceb2c1
1 year, 2 months ago
Selected Answer: D
D using VPC endpoint
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