Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A security architect is designing a system where user access rights are reviewed and certified on a regular basis by data owners. The goal is to ensure that users continue to have only the permissions necessary to perform their job functions and that no excessive permissions exist. Which security principle is primarily being implemented through these regular reviews?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Defense in depth
Defense in depth is a strategy using multiple layers of security controls (e.g., firewalls, encryption). Regular access reviews do not directly implement this principle.
B
Distractor review
Zero trust
Zero trust is a security model that assumes no implicit trust and continuously verifies every access request. While access reviews support zero trust, the specific focus on ensuring minimal permissions aligns more directly with least privilege.
C
Best answer
Least privilege
Least privilege means granting users the minimum level of access required. Regular access reviews are a key governance practice to uphold least privilege by detecting and removing excessive permissions.
D
Distractor review
Separation of duties
Separation of duties divides critical tasks among multiple users to prevent fraud or error. Access reviews focus on individual permissions, not task division.
Common exam trap
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Technical deep dive
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
- Authentication checks who the user is.
- Authorization controls what the user is allowed to do after login.
- Privilege levels affect access to EXEC and configuration commands.
- AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
- Do not assume successful login means full administrative access.
- Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
- Separate login problems from permission problems before choosing the answer.
Related practice questions
Related SC-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this SC-900 question test?
Authentication checks who the user is.
What is the correct answer to this question?
The correct answer is: Least privilege — The principle of least privilege dictates that users should be granted only the minimum permissions needed to do their work. Regular access reviews help enforce this principle by identifying and removing unnecessary permissions. Defense in depth is a layered security approach. Zero trust assumes no implicit trust and requires continuous verification. Separation of duties prevents fraud by requiring multiple people to complete critical tasks.
What should I do if I get this SC-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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