- A
All users should have read-only access to prevent accidental changes.
Why wrong: Read-only access may be too restrictive for users who need to make changes. Least privilege means exactly the right permissions for the job — neither too much nor unnecessarily little.
- B
Users and services should be granted only the minimum permissions required for their specific function, nothing more.
Least privilege limits access to what's actually needed. A developer deploying Cloud Run doesn't need BigQuery admin access. Minimizing permissions reduces the impact of credential compromise.
- C
Administrators should have full access so they can respond to any emergency quickly.
Why wrong: Even administrators should follow least privilege, using elevated permissions only when needed (break-glass access). Permanent broad admin access creates unnecessary risk.
- D
All employees should share the same IAM role to simplify permission management.
Why wrong: Shared roles eliminate individual accountability and can't be tailored to job functions. IAM supports granular per-user or per-group role assignments for precisely this reason.
Quick Answer
The correct answer is that users and services should be granted only the minimum permissions required for their specific function, nothing more. This is because the principle of least privilege in Google Cloud IAM directly reduces the attack surface by ensuring that no identity—whether a user, group, or service account—holds unnecessary access, thereby limiting the blast radius if credentials are ever compromised. On the Google Cloud Digital Leader exam, this concept tests your understanding of foundational security design, often appearing in scenarios where broad roles like Owner or Editor are mistakenly applied instead of precise predefined or custom roles. A common trap is confusing least privilege with convenience, so remember that granting more access than needed violates the core security model. A helpful memory tip: think “just enough, just in time”—only the permissions for the task at hand, nothing extra.
Cloud Digital Leader Trust and security with Google Cloud Practice Question
This GCDL practice question tests your understanding of trust and security with google cloud. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
The principle of least privilege is a fundamental security concept applied to IAM in Google Cloud. Which statement best describes this principle?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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
Users and services should be granted only the minimum permissions required for their specific function, nothing more.
Option B is correct because the principle of least privilege in Google Cloud IAM dictates that identities (users, groups, or service accounts) should be granted only the permissions necessary to perform their intended tasks. This minimizes the attack surface and limits the blast radius of a compromised credential. In Google Cloud, this is implemented by assigning predefined or custom roles with the exact set of permissions required, rather than using broad roles like Owner or Editor.
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.
- ✗
All users should have read-only access to prevent accidental changes.
Why it's wrong here
Read-only access may be too restrictive for users who need to make changes. Least privilege means exactly the right permissions for the job — neither too much nor unnecessarily little.
- ✓
Users and services should be granted only the minimum permissions required for their specific function, nothing more.
Why this is correct
Least privilege limits access to what's actually needed. A developer deploying Cloud Run doesn't need BigQuery admin access. Minimizing permissions reduces the impact of credential compromise.
Clue confirmation
The clue words "best", "least" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Administrators should have full access so they can respond to any emergency quickly.
Why it's wrong here
Even administrators should follow least privilege, using elevated permissions only when needed (break-glass access). Permanent broad admin access creates unnecessary risk.
- ✗
All employees should share the same IAM role to simplify permission management.
Why it's wrong here
Shared roles eliminate individual accountability and can't be tailored to job functions. IAM supports granular per-user or per-group role assignments for precisely this reason.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that 'least privilege' means 'everyone gets read-only' or that 'administrators need full access for emergencies,' but the correct interpretation is granular, role-specific permissions with temporary elevation for break-glass scenarios.
Detailed technical explanation
How to think about this question
Under the hood, Google Cloud IAM uses a policy enforcement model where each permission is checked against the effective policy, which is the union of all roles bound to the principal at the project, folder, or organization level. The principle of least privilege is enforced by using custom roles that specify only the exact API methods (e.g., compute.instances.start, storage.objects.get) needed, avoiding the use of primitive roles (Owner, Editor, Viewer) which grant broad, coarse-grained access. In a real-world scenario, a CI/CD pipeline service account should only have permissions to deploy to a specific Cloud Run service, not to delete Cloud Storage buckets or modify VPC networks, preventing accidental or malicious lateral movement.
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.
- →
Trust and security with Google Cloud — study guide chapter
Learn the concepts, then practise the questions
- →
Trust and security with Google Cloud practice questions
Targeted practice on this topic area only
- →
All GCDL questions
507 questions across all exam domains
- →
Google Cloud Digital Leader study guide
Full concept coverage aligned to exam objectives
- →
GCDL practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related GCDL practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Why cloud technology is transforming business practice questions
Practise GCDL questions linked to Why cloud technology is transforming business.
Fundamental cloud concepts practice questions
Practise GCDL questions linked to Fundamental cloud concepts.
Google Cloud products, services, and solutions practice questions
Practise GCDL questions linked to Google Cloud products, services, and solutions.
Scaling with Google Cloud operations practice questions
Practise GCDL questions linked to Scaling with Google Cloud operations.
Trust and security with Google Cloud practice questions
Practise GCDL questions linked to Trust and security with Google Cloud.
GCDL fundamentals practice questions
Practise GCDL questions linked to GCDL fundamentals.
GCDL scenario practice questions
Practise GCDL questions linked to GCDL scenario.
GCDL troubleshooting practice questions
Practise GCDL questions linked to GCDL troubleshooting.
Practice this exam
Start a free GCDL practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this GCDL question test?
Trust and security with Google Cloud — This question tests Trust and security with Google Cloud — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Users and services should be granted only the minimum permissions required for their specific function, nothing more. — Option B is correct because the principle of least privilege in Google Cloud IAM dictates that identities (users, groups, or service accounts) should be granted only the permissions necessary to perform their intended tasks. This minimizes the attack surface and limits the blast radius of a compromised credential. In Google Cloud, this is implemented by assigning predefined or custom roles with the exact set of permissions required, rather than using broad roles like Owner or Editor.
What should I do if I get this GCDL 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: "best", "least". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 30, 2026
This GCDL 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 GCDL exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.