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Amazon DVA-C02 Exam - Topic 1 Question 55 Discussion

Actual exam question for Amazon's DVA-C02 exam
Question #: 55
Topic #: 1
[All DVA-C02 Questions]

A developer needs to troubleshoot an AWS Lambda function in a development environment. The Lambda function is configured in VPC mode and needs to connect to an existing Amazon RDS for SOL Server DB instance. The DB instance is deployed in a private subnet and accepts connections by using port 1433.

When the developer tests the function, the function reports an error when it tries to connect to the database.

Which combination of steps should the developer take to diagnose this issue? (Select TWO.)

Show Suggested Answer Hide Answer
Suggested Answer: A, E

by Elenor at Aug 15, 2025, 01:16 PM

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Dean
3 months ago
I thought NAT gateways were only for outbound traffic, not this situation?
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Lynelle
3 months ago
Wait, does the DB really need public access? Seems risky.
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Filiberto
3 months ago
Definitely A and D, that’s the way to go!
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Ty
3 months ago
Security groups are key here, no doubt about it!
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Belen
4 months ago
Gotta check those security group rules for sure!
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Barabara
4 months ago
I feel like the execution role permissions are important too, especially for accessing the RDS instance. Maybe D is relevant, but I’m unsure about the other option.
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Tori
4 months ago
I practiced a question similar to this, and I think checking the security groups is crucial. I’m leaning towards A, but I’m not confident about the second option.
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Vi
4 months ago
I’m not entirely sure, but I think the function needs outbound access to the DB instance, so maybe A and D could work together?
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Olive
4 months ago
I remember something about security groups needing to allow traffic on the right ports, so A seems like a good choice.
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Carin
5 months ago
I'm a bit unsure about the VPC setup and the NAT gateway requirement. I'll need to research that a bit more before I can confidently answer this question.
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Hoa
5 months ago
This seems straightforward enough. I'll focus on the security group configurations and the function's permissions to access the RDS instance. I'm confident I can figure this out.
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Stanford
5 months ago
Okay, I think I've got a handle on this. I'll start by checking the security group rules to ensure the Lambda function can communicate with the RDS instance. Then I'll verify the function's execution role permissions.
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Cherelle
5 months ago
Hmm, I'm a bit confused by the question. I'll need to double-check the VPC setup and make sure the Lambda function has the right permissions to access the RDS instance.
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Kris
5 months ago
This looks like a tricky one. I'll need to carefully review the security group configurations and permissions to make sure the Lambda function can properly connect to the RDS instance.
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Carylon
7 months ago
I think we should check the security group settings first.
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