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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?

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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?

Full question →

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

Physical security of the data centers

Physical security is the responsibility of Microsoft as the cloud provider.

B

Best answer

Patching the guest operating system and applications

For IaaS, the customer manages the guest OS and applications, including patching.

C

Distractor review

Ensuring the hypervisor is secured

The hypervisor is managed by Microsoft; customers do not have access to it.

D

Distractor review

Maintaining the network infrastructure

The underlying network infrastructure is maintained by Microsoft.

Common exam trap

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Technical deep dive

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

  • Static NAT maps one inside address to one outside address.
  • PAT allows many inside hosts to share one public address using ports.
  • Inside local and inside global describe the private and translated addresses.
  • NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

  • Identify inside and outside interfaces first.
  • Check whether the scenario needs static NAT, dynamic NAT or PAT.
  • Do not confuse NAT matching ACLs with normal packet-filtering intent.

Related practice questions

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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.

Question 1

A company must retain all customer contracts for 10 years to comply with industry regulations. After 10 years, the contracts must be permanently deleted. Which Microsoft Purview solution should be used to automate this process?

Question 2

A company uses a cloud-based SaaS (Software as a Service) application for customer relationship management. According to the shared responsibility model, which security responsibility is primarily handled by the customer?

Question 3

A company runs a mix of on-premises servers and Azure virtual machines. They deploy Microsoft Defender for Endpoint on all servers. The security team wants to create custom queries to hunt for a specific attack pattern that involves a sequence of events across multiple machines, such as a PowerShell script being downloaded and then executed on several servers. They need to write their own detection rules based on advanced hunting data. Which Microsoft 365 Defender capability should they use?

Question 4

A company runs a consumer-facing e-commerce website and wants to allow customers to sign in using their existing social media accounts such as Google, Facebook, or LinkedIn. Which Microsoft Entra ID solution should they implement?

Question 5

A company has a hybrid identity environment with Active Directory synchronizing to Microsoft Entra ID. They want users to be able to reset their own on-premises passwords via the cloud SSPR portal. What is the minimum license required for this capability?

Question 6

A company uses a cloud-based Customer Relationship Management (CRM) system that is delivered as Software-as-a-Service (SaaS). According to the shared responsibility model, which security responsibility is primarily handled by the customer?

FAQ

Questions learners often ask

What does this SC-900 question test?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: Patching the guest operating system and applications — For IaaS, the customer is responsible for all aspects of the virtual machine they deploy, including patching the guest OS, securing the application, and managing user access. Microsoft is responsible for the physical data center, the hypervisor, and the network infrastructure.

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.

Discussion

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