Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 521 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03

Question #: 521
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A retail company has several businesses. The IT team for each business manages its own AWS account. Each team account is part of an organization in AWS Organizations. Each team monitors its product inventory levels in an Amazon DynamoDB table in the team's own AWS account.

The company is deploying a central inventory reporting application into a shared AWS account. The application must be able to read items from all the teams' DynamoDB tables.

Which authentication option will meet these requirements MOST securely?

A. Integrate DynamoDB with AWS Secrets Manager in the inventory application account. Configure the application to use the correct secret from Secrets Manager to authenticate and read the DynamoDB table. Schedule secret rotation for every 30 days.
B. In every business account, create an IAM user that has programmatic access. Configure the application to use the correct IAM user access key ID and secret access key to authenticate and read the DynamoDB table. Manually rotate IAM access keys every 30 days.
C. In every business account, create an IAM role named BU_ROLE with a policy that gives the role access to the DynamoDB table and a trust policy to trust a specific role in the inventory application account. In the inventory account, create a role named APP_ROLE that allows access to the STS AssumeRole API operation. Configure the application to use APP_ROLE and assume the crossaccount role BU_ROLE to read the DynamoDB table.
D. Integrate DynamoDB with AWS Certificate Manager (ACM). Generate identity certificates to authenticate DynamoDB. Configure the application to use the correct certificate to authenticate and read the DynamoDB table.

Show Suggested Answer

Suggested Answer: C 🗳️

by nosense at May 19, 2023, 11:58 a.m.

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cloudenthusiast

Highly Voted 2 years, 3 months ago

Selected Answer: C

IAM Roles: IAM roles provide a secure way to grant permissions to entities within AWS. By creating an IAM role in each business account named BU_ROLE with the necessary permissions to access the DynamoDB table, the access can be controlled at the IAM role level. Cross-Account Access: By configuring a trust policy in the BU_ROLE that trusts a specific role in the inventory application account (APP_ROLE), you establish a trusted relationship between the two accounts. Least Privilege: By creating a specific IAM role (BU_ROLE) in each business account and granting it access only to the required DynamoDB table, you can ensure that each team's table is accessed with the least privilege principle. Security Token Service (STS): The use of STS AssumeRole API operation in the inventory application account allows the application to assume the cross-account role (BU_ROLE) in each business account.

upvoted 31 times

TariqKipkemei

2 years, 1 month ago

Well broken down..thank you :)

upvoted 3 times

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MandAsh

Highly Voted 1 year, 2 months ago

C because they have taken effort to explain it in details.. lol

upvoted 7 times

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Bennyboy789

Most Recent 1 year, 11 months ago

Selected Answer: C

Keyword: IAM ROLES

upvoted 4 times

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Guru4Cloud

1 year, 12 months ago

Selected Answer: C

C is the most secure option to meet the requirements. Using cross-account IAM roles and role chaining allows the inventory application to securely access resources in other accounts. The roles provide temporary credentials and can be permissions controlled.

upvoted 3 times

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