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Exam Professional Cloud Developer All Questions

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Exam Professional Cloud Developer topic 1 question 159 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 159
Topic #: 1
[All Professional Cloud Developer Questions]

You have an on-premises application that authenticates to the Cloud Storage API using a user-managed service account with a user-managed key. The application connects to Cloud Storage using Private Google Access over a Dedicated Interconnect link. You discover that requests from the application to access objects in the Cloud Storage bucket are failing with a 403 Permission Denied error code. What is the likely cause of this issue?

  • A. The folder structure inside the bucket and object paths have changed.
  • B. The permissions of the service account’s predefined role have changed.
  • C. The service account key has been rotated but not updated on the application server.
  • D. The Interconnect link from the on-premises data center to Google Cloud is experiencing a temporary outage.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by zellck at Dec. 16, 2022, 2:33 p.m.

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mrvergara
Highly Voted 1 year, 9 months ago
Selected Answer: B
The correct option is B. The 403 Permission Denied error code indicates that the service account is authenticated, but it doesn't have sufficient permissions to access the Cloud Storage bucket. If the error code were 401 Unauthorized, it would suggest that the authentication failed, which could be caused by a rotated key, as in option C. However, in this case, the error code is 403, which indicates a problem with the permissions of the service account, making option B the most likely cause.
upvoted 6 times
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thewalker
Most Recent 1 month ago
Selected Answer: C
While permissions of the service account’s predefined role can change, this typically wouldn’t result in a 403 error code immediately unless someone deliberately removed the necessary permissions. A more common reason for a sudden 403 error is an authentication issue, like a rotated key not being updated on the application server, which would directly prevent access.
upvoted 1 times
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d_ella2001
4 months, 2 weeks ago
Selected Answer: B
B is correct
upvoted 1 times
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pico
5 months, 3 weeks ago
Selected Answer: C
User-Managed Service Accounts and Keys: When you use a user-managed service account with a user-managed key, you are responsible for generating and distributing the key. If the key is rotated (for security best practices), you must update your application to use the new key. 403 Permission Denied: This error typically indicates that the credentials being used for authentication are invalid or lack the necessary permissions. If the key was rotated and not updated, the application will continue to use the old, invalid key, resulting in this error.
upvoted 1 times
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prasadjblin
1 year ago
Selected Answer: B
B is the correct answer. 403 denotes user is authentication but not authorized.
upvoted 1 times
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__rajan__
1 year, 2 months ago
Selected Answer: C
C is correct
upvoted 1 times
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purushi
1 year, 3 months ago
Selected Answer: C
The client id/service account key has been updated for the storage bucket but that was not being notified to the client applications or application server that calls cloud storage bucket.
upvoted 1 times
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omermahgoub
1 year, 10 months ago
Selected Answer: C
A user-managed service account authenticates to the Cloud Storage API using a key, which is a unique identifier that proves the identity of the service account. If the key is rotated, meaning it is replaced with a new one, the application will no longer be able to authenticate using the old key, resulting in a 403 Permission Denied error. To resolve this issue, the application server must be updated with the new key.
upvoted 2 times
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telp
1 year, 10 months ago
Selected Answer: B
Anwser B with status code 403 => Forbidden so the first authentication is working just the service has not enough permission to access the document.
upvoted 1 times
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telp
1 year, 10 months ago
Selected Answer: C
The answer is between B or C. I will choose C because the question has a context with account service by file with a key. With this setup, the cause of issue 403 will be key is not valid anymore after a rotation. For another context with only account service without a key generated, the B is the first check but with a key, you need to check if the key is valid before searching others causes.
upvoted 1 times
TNT87
1 year, 10 months ago
The HTTP 403 Forbidden response status code indicates that the server understands the request but refuses to authorize it. This status is similar to 401 , but for the 403 Forbidden status code, re-authenticating makes no difference. The access is tied to the application logic, such as insufficient rights to a resource. The reason for denied access is the reason we get 403. as the question says, do not copy what others are saying , do a research and apply your knowledge to this if you have any practical knowledge. the answer is B
upvoted 1 times
telp
1 year, 10 months ago
Yes agree with your comments, Answer is B
upvoted 2 times
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omermahgoub
1 year, 10 months ago
Selected Answer: C
C. The service account key has been rotated but not updated on the application server. When a user-managed service account key is rotated in Google Cloud, the new key must also be updated on the application server that authenticates to the Cloud Storage API using that key. Failure to update the key on the application server will result in requests to the API failing with a 403 Permission Denied error code. Option B "The permissions of the service account’s predefined role have changed" would also result in 403 error, but it would be a role issue, not a key issue.
upvoted 1 times
TNT87
1 year, 10 months ago
I dnt know if you have studied cloud security, GCP cloud security and are you actually doing these practically??
upvoted 1 times
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TNT87
1 year, 10 months ago
But the key has a role, so i literrally do not understand your last statement, actually provide a link to your answer because i dnt think The documentation can lieoi provided links because i needed to support what i know by what is written.
upvoted 1 times
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TNT87
1 year, 10 months ago
The question explicitly says "'What is the likely cause of this issue?"' and i answered that by providing links, you are arguing but you dnt provide any links, i do not copy answers from someone , i do a research hence even if i know the answer off head i try to provide links for the sake of others like you, i dnt make baseless arguments
upvoted 1 times
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TNT87
1 year, 10 months ago
Selected Answer: B
Answer B https://cloud.google.com/storage/docs/troubleshooting#access-permission https://cloud.google.com/appengine/docs/legacy/standard/python/googlecloudstorageclient/errors https://cloud.google.com/storage/docs/xml-api/reference-status#403%E2%80%94forbidden
upvoted 1 times
omermahgoub
1 year, 10 months ago
The links you've provided are helpful resources for troubleshooting 403 "Permission Denied" errors when working with Cloud Storage. You're correct, the 403 "Permission Denied" error can be caused by various reasons, such as an issue with the folder structure inside the bucket or an issue with the predefined role permissions, but based on the context and the error message it seems that the most likely cause is the service account key being rotated and not updated on the application server as I mentioned earlier. Additionally, the links you provided provide more information about the possible causes for 403 error, such as the permissions that are associated with the object and the bucket, user authentication and role-based access control. Also, it's important to check the Cloud Storage access logs to determine the cause of the error and take appropriate action.
upvoted 1 times
TNT87
1 year, 10 months ago
so whats your argument because i provided the links to prove my point , where are your links? i chose the answer that is suppoerted, hence oi provided links. im not seeing anywhere where B is supoorted because according to the dicumentation its not B and according to my practical knowledge in GCP it cant be B.
upvoted 1 times
TNT87
1 year, 10 months ago
it cant be C i mean.... B is the answer thats what the links are saying
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TNT87
1 year, 11 months ago
Answer B https://cloud.google.com/storage/docs/troubleshooting#access-permission https://cloud.google.com/appengine/docs/legacy/standard/python/googlecloudstorageclient/errors https://cloud.google.com/storage/docs/xml-api/reference-status#403%E2%80%94forbidden
upvoted 2 times
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zellck
1 year, 11 months ago
Selected Answer: C
C is the answer.
upvoted 1 times
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