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Bootstrapping a Google Cloud organization for DevOps →hardMultiple ChoiceObjective-mapped

PCDOE Practice Question: Bootstrapping a Google Cloud organization for DevOps

This PCDOE practice question tests your understanding of bootstrapping a google cloud organization for devops. 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.

Exhibit

```
resource "google_project" "my_project" {
  name       = "My Project"
  project_id = "my-project-123"
  org_id     = "123456789012"
  auto_create_network = false
}
resource "google_project_service" "compute" {
  project = google_project.my_project.project_id
  service = "compute.googleapis.com"
}
```

Refer to the exhibit. A DevOps engineer applies this Terraform configuration but gets an error: "Error creating Project: googleapi: Error 403: The caller does not have permission to enable services". 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.

Question 1hardmultiple choice

Full question →

Exhibit

```
resource "google_project" "my_project" {
  name       = "My Project"
  project_id = "my-project-123"
  org_id     = "123456789012"
  auto_create_network = false
}
resource "google_project_service" "compute" {
  project = google_project.my_project.project_id
  service = "compute.googleapis.com"
}
```

A
The service account used by Terraform lacks the Service Usage Admin role on the project.
Service Usage Admin grants permission to enable services.
B
The org_id is incorrect.
Why wrong: Would give an invalid organization error.
C
The organization requires that the Compute Engine API be enabled before project creation.
Why wrong: APIs are enabled after project creation.
D
The project ID already exists.
Why wrong: Would give ALREADY_EXISTS error.

Full breakdown with real-world context →

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 service account used by Terraform lacks the Service Usage Admin role on the project.

The error 'The caller does not have permission to enable services' indicates that the identity (service account) used by Terraform to authenticate with the Google Cloud API lacks the required IAM permission to enable Google APIs on the project. The Service Usage Admin role (roles/serviceusage.serviceUsageAdmin) grants the necessary permissions, including serviceusage.services.enable and serviceusage.services.list, which are required to enable services like the Compute Engine API during resource creation. Without this role, the API call to enable services fails with a 403 error.

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 service account used by Terraform lacks the Service Usage Admin role on the project.
Why this is correct
Service Usage Admin grants permission to enable services.
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 org_id is incorrect.
Why it's wrong here
Would give an invalid organization error.
✗
The organization requires that the Compute Engine API be enabled before project creation.
Why it's wrong here
APIs are enabled after project creation.
✗
The project ID already exists.
Why it's wrong here
Would give ALREADY_EXISTS error.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Google Cloud often tests the misconception that the error is due to a missing prerequisite API (like Compute Engine) or a duplicate project ID, when in fact the root cause is insufficient IAM permissions for the service account to enable services.

Detailed technical explanation

How to think about this question

Under the hood, when Terraform creates a project using the google_project resource, it automatically attempts to enable the services specified in the google_project_service resources or the services argument. The Service Usage API (serviceusage.googleapis.com) must be enabled on the organization or the billing account, and the service account must have the serviceusage.services.enable permission at the project or organization level. In real-world scenarios, this often occurs when a DevOps engineer uses a default Compute Engine service account or a service account with only basic roles, forgetting that enabling services requires the Service Usage Admin role.

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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

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 PCDOE question test?

Bootstrapping a Google Cloud organization for DevOps — This question tests Bootstrapping a Google Cloud organization for DevOps — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The service account used by Terraform lacks the Service Usage Admin role on the project. — The error 'The caller does not have permission to enable services' indicates that the identity (service account) used by Terraform to authenticate with the Google Cloud API lacks the required IAM permission to enable Google APIs on the project. The Service Usage Admin role (roles/serviceusage.serviceUsageAdmin) grants the necessary permissions, including serviceusage.services.enable and serviceusage.services.list, which are required to enable services like the Compute Engine API during resource creation. Without this role, the API call to enable services fails with a 403 error.

What should I do if I get this PCDOE 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: Jun 30, 2026

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