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Question 553 - SCS-C01 discussion

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A company is building a data processing application that uses AWS Lambda functions The application's Lambda functions need to communicate with an Amazon RDS OB instance that is deployed within a VPC in the same AWS account

Which solution meets these requirements in the MOST secure way?

A.
Configure the DB instance to allow public access Update the DB instance security group to allow access from the Lambda public address space for the AWS Region
Answers
A.
Configure the DB instance to allow public access Update the DB instance security group to allow access from the Lambda public address space for the AWS Region
B.
Deploy the Lambda functions inside the VPC Attach a network ACL to the Lambda subnet Provide outbound rule access to the VPC CIDR range only Update the DB instance security group to allow traffic from 0 0 0 0/0
Answers
B.
Deploy the Lambda functions inside the VPC Attach a network ACL to the Lambda subnet Provide outbound rule access to the VPC CIDR range only Update the DB instance security group to allow traffic from 0 0 0 0/0
C.
Deploy the Lambda functions inside the VPC Attach a security group to the Lambda functions Provide outbound rule access to the VPC CIDR range only Update the DB instance security group to allow traffic from the Lambda security group
Answers
C.
Deploy the Lambda functions inside the VPC Attach a security group to the Lambda functions Provide outbound rule access to the VPC CIDR range only Update the DB instance security group to allow traffic from the Lambda security group
D.
Peer the Lambda default VPC with the VPC that hosts the DB instance to allow direct network access without the need for security groups
Answers
D.
Peer the Lambda default VPC with the VPC that hosts the DB instance to allow direct network access without the need for security groups
Suggested answer: C

Explanation:

The AWS documentation states that you can deploy the Lambda functions inside the VPC and attach a security group to the Lambda functions. You can then provide outbound rule access to the VPC CIDR range only and update the DB instance security group to allow traffic from the Lambda security group. This method is the most secure way to meet the requirements.

Reference: : AWS Lambda Developer Guide

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asked 16/09/2024
Marcelo Oliveira
38 questions
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