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Exam AWS Certified Advanced Networking - Specialty ANS-C01 All Questions

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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 195 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 195
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company has AWS accounts in an organization in AWS Organizations. The company has implemented Amazon VPC IP Address Manager (IPAM) in its networking AWS account. The company is using AWS Resource Access Manager (AWS RAM) to share IPAM pools with other AWS accounts. The company has created a top-level pool with a CIDR block of 10.0.0.0/8. For each AWS account, the company has created an IPAM pool within the top-level pool.

A network engineer needs to implement a solution to ensure that users in each AWS account cannot create new VPCs. The solution also must prevent users from associating a CIDR block with existing VPCs unless the CIDR block is from the IPAM pool for that account.

Which solution will meet these requirements?

  • A. Create a new AWS Config rule to find all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke an AWS Lambda function to delete these VPCs.
  • B. Create a new SCP in Organizations. Add a condition that denies the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions if the Ipv4IpamPoolId context key value is not the ID of an IPAM pool.
  • C. Create an AWS Lambda function to check for and delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool. Invoke the Lambda function at regular intervals.
  • D. Create an Amazon EventBridge rule to check for AWS CloudTrail events for the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions. Use the rule to invoke an AWS Lambda function to delete all VPCs that are not configured to allocate their CIDR block from an IPAM pool.
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Suggested Answer: B 🗳️
by rdiaz at June 12, 2024, 10:30 p.m.
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Spaurito
1 week, 2 days ago
B - This meets the requirements, although option A would as well. Only issue with option A, is the deletion of VPC's. Doesn't mention removing or reclaiming existing IP's.
upvoted 1 times
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[Removed]
2 months, 3 weeks ago
Selected Answer: B
Question mentions organization so we have to use scp rule for central management
upvoted 1 times
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Akshay0403
3 months, 3 weeks ago
Selected Answer: B
Option B is the most effective and efficient solution because it proactively prevents non-compliant actions at the organization level, enforcing a strict policy that ensures VPC creation and CIDR block associations are limited to IPAM pools. By leveraging SCPs, you can maintain control over your network architecture, ensuring all resources comply with predefined security and operational guidelines.
upvoted 1 times
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strike3test
5 months ago
Selected Answer: B
The most suitable option for enforcing the policy at the point of action (creating or associating CIDR blocks) across all AWS accounts in the organization is option B. Therefore, the correct answer is: B. Create a new SCP in Organizations. Add a condition that denies the CreateVpc and AssociateVpcCidrBlock Amazon EC2 actions if the Ipv4IpamPoolId context key value is not the ID of an IPAM pool.
upvoted 4 times
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rdiaz
5 months ago
Selected Answer: A
aws config
upvoted 1 times
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