Amazon PAS-C01 Exam - Topic 1 Question 52 Discussion

Actual exam question for Amazon's PAS-C01 exam

Question #: 52
Topic #: 1

A company hosts multiple SAP applications on Amazon EC2 instances in a VPC While monitoring the environment the company notices that multiple port scans are attempting to connect to SAP portals inside the VPC. These port scans are originating from the same IP address block. The company must deny access to the VPC from all the offending IP addresses for the next 24 hours.

Which solution win meet this requirement?

AModify network ACLs that are associated with all public subnets in the VPC to deny access from the IP address block

BAdd a rule in the security group of the EC2 instances to deny access from the IP address block

CCreate a policy in AWS identity and Access Management (1AM) to deny access from the IP address block

DConfigure the firewall m the operating system of the EC2 instances to deny access from the IP address block

Show Suggested Answer

Suggested Answer: C, D, F

https://docs.aws.amazon.com/whitepapers/latest/sap-on-aws-technical-deployment-guide/security.html https://docs.aws.amazon.com/whitepapers/latest/sap-on-aws-technical-deployment-guide/sap-monitoring.html

by Donte at Jan 22, 2025, 03:38 PM

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Merlyn

3 months ago

Totally agree with A, it's the most effective way to secure the VPC!

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Adelina

3 months ago

Wait, can you really just block an entire IP block like that?

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Tequila

3 months ago

D is a bit risky, better to handle it at the VPC level.

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Alyssa

4 months ago

I think B could work too, but A seems more comprehensive.

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Tori

4 months ago

A is the best option for this scenario.

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Starr

4 months ago

I think configuring the firewall on the EC2 instances could work, but it might be more complicated than just using network ACLs. I’m torn between A and D.

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Aleta

4 months ago

I feel like IAM policies are more about permissions rather than network access, so option C doesn’t seem right to me.

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Zena

4 months ago

I remember a practice question where we had to deny access using security groups. It seems like option B might be a good choice, but I’m not confident it would apply to all instances either.

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Tegan

5 months ago

I think modifying the network ACLs could be the right approach since they apply at the subnet level, but I'm not entirely sure if they would cover all instances.

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Lewis

5 months ago

I think the key here is to deny access from the specific IP address block, so modifying the network ACLs associated with the public subnets seems like the most straightforward solution. That way, we can easily block the offending IPs across the entire VPC.

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Nathalie

5 months ago

The operating system firewall option seems a bit too specific and might not be the most scalable solution, especially if we have multiple instances. I'd lean more towards the network ACL or security group approach.

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Marsha

5 months ago

Hmm, I'm a bit unsure about the IAM policy option. Does that really apply to network-level access control? I'll need to double-check the IAM documentation to be sure.

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Elly

5 months ago

This seems like a straightforward network security question. I'd start by looking at the options that directly address the VPC network access, like modifying the network ACLs or security groups.

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Kayleigh

9 months ago

Hmm, I wonder if the company has tried turning it off and on again? Just kidding, but seriously, these port scans sound like a real headache. I hope they find a quick fix!

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Alonso

8 months ago

D: Configuring the firewall in the operating system could be another way to deny access.

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Lamonica

9 months ago

C: Creating a policy in AWS IAM might be a good option too.

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Tish

9 months ago

B: Yeah, adding a rule in the security group of the EC2 instances could also work.

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Rebbecca

9 months ago

A: I think modifying the network ACLs in the VPC is the best solution.

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Tran

9 months ago

D? Really? Configuring the firewall on each individual EC2 instance sounds like a lot of work. I'd avoid that and go for a more centralized solution.

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Filiberto

10 months ago

Option C is an interesting choice, but I'm not sure if an IAM policy is the best fit for this scenario. It might be overkill and could be more complex to manage.

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Jonell

8 months ago

A: Let's go with option A then. It's the most efficient way to handle the situation.

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Billy

8 months ago

B: I agree with A. It's a straightforward solution to deny access.

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Jeffrey

9 months ago

A: I think option A is the best choice. Modifying network ACLs will block access from the offending IP address block.

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Leatha

10 months ago

I'd go with B. Updating the security group rules for the EC2 instances is a more targeted approach, and it's less likely to impact other resources in the VPC.

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Roselle

9 months ago

Agreed. It's important to minimize impact on other resources.

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Man

9 months ago

That makes sense. It's a focused solution.

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Dona

9 months ago

B) Add a rule in the security group of the EC2 instances to deny access from the IP address block

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Louvenia

10 months ago

Option A seems like the way to go. Modifying the network ACLs for the public subnets is the most effective way to deny access from the offending IP address block across the entire VPC.

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