SC-900 Practice Question: Describe the concepts of security, compliance, and identity
This SC-900 practice question tests your understanding of describe the concepts of security, compliance, and identity. 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.
A company deploys a virtual machine on Azure IaaS. According to the Microsoft shared responsibility model, which of the following security responsibilities is primarily the customer's responsibility?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Patching the guest operating system and applications
In the Microsoft shared responsibility model, the customer is responsible for securing and patching the guest operating system and applications running on an Azure IaaSvirtual machine. Microsoft manages the physical infrastructure, hypervisor, and network, while the customer controls the OS, applications, and data.
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.
✗
Physical security of the data centers
Why it's wrong here
Physical security is the responsibility of Microsoft as the cloud provider.
✓
Patching the guest operating system and applications
Why this is correct
For IaaS, the customer manages the guest OS and applications, including patching.
Related concept
Read the scenario before looking for a memorised answer.
✗
Ensuring the hypervisor is secured
Why it's wrong here
The hypervisor is managed by Microsoft; customers do not have access to it.
✗
Maintaining the network infrastructure
Why it's wrong here
The underlying network infrastructure is maintained by Microsoft.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse IaaS with PaaS or SaaS, assuming Microsoft handles OS patching, but in IaaS the customer retains full control and responsibility for the guest OS and applications.
Detailed technical explanation
How to think about this question
Under the shared responsibility model for IaaS, the customer must apply OS-level patches (e.g., via Windows Update or apt) and application updates, while Microsoft handles hypervisor isolation (e.g., Hyper-V security) and physical host firmware updates. A real-world scenario: if a vulnerability like CVE-2023-23397 affects the guest OS, the customer must patch it; Microsoft only patches the host OS and hypervisor. This distinction is critical for compliance frameworks like PCI DSS, where the customer must demonstrate OS patch management.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the concepts of security, compliance, and identity — This question tests Describe the concepts of security, compliance, and identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Patching the guest operating system and applications — In the Microsoft shared responsibility model, the customer is responsible for securing and patching the guest operating system and applications running on an Azure IaaS virtual machine. Microsoft manages the physical infrastructure, hypervisor, and network, while the customer controls the OS, applications, and data.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
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.
This SC-900 practice question is part of Courseiva's free Microsoft 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 SC-900 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.