mediummultiple choiceObjective-mapped

A company plans to migrate its on-premises workloads to the cloud. They will use Virtual Machines (VMs) for their legacy applications and a serverless computing service for new microservices. The cloud provider will manage the physical hardware, but the company is responsible for patching the operating system of the VMs. Which two cloud service models are being used?

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A company plans to migrate its on-premises workloads to the cloud. They will use Virtual Machines (VMs) for their legacy applications and a serverless computing service for new microservices. The cloud provider will manage the physical hardware, but the company is responsible for patching the operating system of the VMs. Which two cloud service models are being used?

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

Best answer

IaaS and PaaS

VMs are IaaS; serverless is PaaS.

B

Distractor review

IaaS and SaaS

Serverless is not SaaS; SaaS is fully managed applications.

C

Distractor review

PaaS and SaaS

VMs are not PaaS.

D

Distractor review

IaaS only

Serverless is a different model.

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

Related MS-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.

FAQ

Questions learners often ask

What does this MS-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: IaaS and PaaS — Virtual Machines represent Infrastructure as a Service (IaaS) because the company manages the OS and applications, while the provider manages the underlying hardware. Serverless computing (e.g., Azure Functions) is a form of Platform as a Service (PaaS) where the provider manages the runtime and the company only deploys code. Software as a Service (SaaS) would be fully managed applications like Microsoft 365.

What should I do if I get this MS-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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