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A solutions architect is developing a multiple-subnet VPC architecture. The solution will consist of six subnets in two Availability Zones. The subnets are defined as public, private and dedicated for databases. Only the Amazon EC2 instances running in the private subnets should be able to access a database. Which solution meets these requirements?
A company creates operations data and stores the data in an Amazon S3 bucket for the company's annual audit, an external consultant needs to access an annual report that is stored in the S3 bucket. The external consultant needs to access the report for 7 days. The company must implement a solution to allow the external consultant access to only the report. Which solution will meet these requirements with the MOST operational efficiency?
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Question 867 - SAA-C03 discussion

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A company has Amazon EC2 instances in multiple AWS Regions. The instances all store and retrieve confidential data from the same Amazon S3 bucket. The company wants to improve the security of its current architecture.

The company wants to ensure that only the Amazon EC2 instances within its VPC can access the S3 bucket. The company must block all other access to the bucket.

Which solution will meet this requirement?

A.

Use 1AM policies to restrict access to the S3 bucket.

Answers
A.

Use 1AM policies to restrict access to the S3 bucket.

B.

Use server-side encryption (SSE) to encrypt data in the S3 bucket at rest. Store the encryption key on the EC2 instances.

Answers
B.

Use server-side encryption (SSE) to encrypt data in the S3 bucket at rest. Store the encryption key on the EC2 instances.

C.

Create a VPC endpoint for Amazon S3. Configure an S3 bucket policy to allow connections only from the endpoint.

Answers
C.

Create a VPC endpoint for Amazon S3. Configure an S3 bucket policy to allow connections only from the endpoint.

D.

Use AWS Key Management Service (AWS KMS) with customer-managed keys to encrypt the data before sending the data to the S3 bucket.

Answers
D.

Use AWS Key Management Service (AWS KMS) with customer-managed keys to encrypt the data before sending the data to the S3 bucket.

Suggested answer: C

Explanation:

Creating a VPC endpoint for S3 and configuring a bucket policy to allow access only from the endpoint ensures that only EC2 instances within the VPC can access the S3 bucket. This solution improves security by restricting access at the network level without the need for public internet access.

Option A (IAM policies): IAM policies alone cannot restrict access based on the network location.

Option B and D (Encryption): Encryption secures data at rest but does not restrict network access to the bucket.

AWS

Reference:

Amazon S3 VPC Endpoints

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asked 27/10/2024
Melvin Masina
32 questions
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