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Google Professional Cloud Architect (PR000213) Exam - Topic 3 Question 124 Discussion

You are designing a large distributed application with 30 microservices. Each of your distributed microservices needs to connect to a database back-end. You want to store the credentials securely. Where should you store the credentials?
C) In a secret management system
A) In the source code
B) In an environment variable
D) In a config file that has restricted access through ACLs

Google Professional Cloud Architect (PR000213) Exam - Topic 3 Question 124 Discussion

Actual exam question for Google's Professional Cloud Architect (PR000213) exam
Question #: 124
Topic #: 3
[All Professional Cloud Architect (PR000213) Questions]

You are designing a large distributed application with 30 microservices. Each of your distributed microservices needs to connect to a database back-end. You want to store the credentials securely. Where should you store the credentials?

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Suggested Answer: C

https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application


by Remona at Jun 29, 2026, 11:32 AM

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Marsha
6 minutes ago
C provides better security and access control.
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Mitsue
5 days ago
D is okay, but ACLs can be bypassed.
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Fletcher
10 days ago
Agreed! Storing in environment variables can be risky.
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Shonda
16 days ago
I think C is the best choice. Secret management systems are designed for this.
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Carey
21 days ago
D could work, but it's not as secure as C.
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Detra
26 days ago
Surprised anyone would consider A, that's super risky!
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Celestina
1 month ago
A is a big no-no, that's just asking for trouble.
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Roselle
1 month ago
I think B is fine too, as long as you secure the environment.
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Detra
1 month ago
Definitely C, secret management systems are the way to go!
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Scarlet
2 months ago
D could work, but it’s still not as secure as C.
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Maile
2 months ago
I agree, C is the way to go! Secret management systems are essential.
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Na
2 months ago
Wait, people still put credentials in source code? That's risky!
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Truman
2 months ago
Storing in environment variables is okay, but not the safest.
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Sheridan
2 months ago
C is definitely the best choice for security!
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Jacquelyne
2 months ago
Config files with ACLs sound okay, but I recall there were concerns about their security if not managed properly.
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Paulina
3 months ago
I think using a secret management system is the best practice for storing credentials securely. It was emphasized in a case study we reviewed.
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Rebeca
3 months ago
I feel like environment variables are a common practice, but I'm not sure if they are the most secure option compared to others.
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Lynelle
3 months ago
I remember discussing the importance of not hardcoding credentials in source code, so I think that's definitely not the right choice.
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