- A
The function was already deployed with the same name, causing a conflict.
Why wrong: Would say 'already exists'.
- B
The gcloud config's region does not match the region where the function was deployed.
The default region might be unset or different.
- C
The Python runtime version is not supported in that region.
Why wrong: Python 3.9 is widely supported.
- D
The Cloud Functions API is not enabled.
Why wrong: Would return a different error.
Question 532 of 999
Resolve 'Function does not exist' Error Due to Wrong Region in gcloud
This PCD practice question tests your understanding of deploying applications. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are deploying a Python Cloud Function using the Google Cloud CLI. The deployment fails with 'ERROR: (gcloud.functions.deploy) ResponseError: status=[404], code=[OK], message=[The function ... does not exist]' but the function already exists. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Quick Answer
The answer is that the gcloud config’s region does not match the region where the Cloud Function was originally deployed. This mismatch causes the gcloud CLI to look for the function in a different location, returning a 404 error even though the function exists in another region. On the Google Professional Cloud Developer exam, this scenario tests your understanding of how gcloud’s default region and project settings influence deployment commands—a common trap is assuming the error indicates the function is missing entirely, when in fact you simply need to set the correct region with `gcloud config set functions/region` or include the `--region` flag in your deploy command. Remember the memory tip: “Region mismatch gives a ghost 404—your function is alive, just in a different zip code.”
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The gcloud config's region does not match the region where the function was deployed.
The 404 error indicates the deployment command cannot locate the function in the specified region. When you deploy a Cloud Function using the gcloud CLI, the command uses the default region set in your gcloud configuration (or the --region flag). If the function was originally deployed in a different region, the CLI will look for it in the wrong region and fail with a 404, even though the function exists elsewhere. This is the most common cause of this specific error message.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The function was already deployed with the same name, causing a conflict.
Why it's wrong here
Would say 'already exists'.
- ✓
The gcloud config's region does not match the region where the function was deployed.
Why this is correct
The default region might be unset or different.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The Python runtime version is not supported in that region.
Why it's wrong here
Python 3.9 is widely supported.
- ✗
The Cloud Functions API is not enabled.
Why it's wrong here
Would return a different error.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common mistake is assuming a 404 error always means the resource does not exist. In Google Cloud Functions, if the region in your gcloud config does not match the region where the function was deployed, the CLI will return a 404 even though the function exists elsewhere.
Detailed technical explanation
How to think about this question
The gcloud CLI uses the 'functions' API endpoint that includes the region in the URL path (e.g., https://cloudfunctions.googleapis.com/v1/projects/{project}/locations/{region}/functions/{name}). If the region in the URL does not match the region where the function was created, the API returns a 404 because the resource does not exist in that location. This is a common pitfall when switching between projects or regions without updating the gcloud config's 'functions/region' property or omitting the --region flag during deployment.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this PCD question test?
Deploying applications — This question tests Deploying applications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The gcloud config's region does not match the region where the function was deployed. — The 404 error indicates the deployment command cannot locate the function in the specified region. When you deploy a Cloud Function using the gcloud CLI, the command uses the default region set in your gcloud configuration (or the --region flag). If the function was originally deployed in a different region, the CLI will look for it in the wrong region and fail with a 404, even though the function exists elsewhere. This is the most common cause of this specific error message.
What should I do if I get this PCD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This PCD practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCD exam.
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