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hardmultiple choiceObjective-mapped

A multinational organization with 500 users currently has Microsoft 365 E3 licenses. They need to perform advanced threat hunting using queries across email, endpoints, and identities to investigate a security incident. They also need the ability to automatically isolate infected endpoints. What is the most cost-effective licensing addition?

Question 1hardmultiple choice
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A multinational organization with 500 users currently has Microsoft 365 E3 licenses. They need to perform advanced threat hunting using queries across email, endpoints, and identities to investigate a security incident. They also need the ability to automatically isolate infected endpoints. What is the most cost-effective licensing addition?

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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

Microsoft 365 E5 Security

Correct. The E5 Security add-on provides Microsoft 365 Defender for advanced threat hunting across multiple domains and includes automated endpoint isolation.

B

Distractor review

Microsoft 365 E5

Incorrect. Upgrading to full E5 is more expensive than the Security add-on and includes many features (e.g., advanced compliance) not required for this scenario.

C

Distractor review

Microsoft 365 E5 Compliance

Incorrect. The Compliance add-on focuses on eDiscovery, retention, and data governance, not threat hunting or endpoint security.

D

Distractor review

Enterprise Mobility + Security (EMS) E5

Incorrect. EMS E5 is an older bundle that includes Microsoft Entra ID P2 and Intune but does not include Microsoft 365 Defender for threat hunting. It is no longer the recommended add-on for this purpose.

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

During requirements gathering, an IT manager says the organization must let users provision resources from a portal without provider interaction. Cloud concept or benefit best matches this requirement?

Question 2

A compliance-aware administrator is selecting the right Microsoft 365 capability to use Microsoft 365 and another public cloud provider for different workloads. Cloud concept or benefit best matches this requirement?

Question 3

While preparing a Microsoft 365 adoption plan, a consultant is asked to manage leads, opportunities, customer accounts, and sales processes. Microsoft 365 app or service is the best fit?

Question 4

A project manager needs to create a detailed project schedule with a Gantt chart view, task dependencies, critical path analysis, and milestones. The schedule must be shared with team members who can update their tasks, and the manager wants to track progress against a baseline. Which Microsoft 365 app is specifically designed for this type of project management?

Question 5

A project manager wants to schedule a meeting with team members to discuss project progress. They need to find a time that works for everyone based on their calendars. Which Microsoft 365 app should they use?

Question 6

A project manager wants to create a visual dashboard that tracks project tasks, deadlines, and progress. The dashboard should pull data from a Microsoft List and update in real time. Which Microsoft 365 app is best suited for building this interactive dashboard?

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: Microsoft 365 E5 Security — Microsoft 365 E5 Security add-on includes Microsoft 365 Defender, which provides advanced threat hunting (including query-based hunting) and endpoint isolation capabilities. Adding the full E5 license would be more expensive. E5 Compliance does not include these security features. Enterprise Mobility + Security E5 is no longer sold separately; the E5 Security add-on is the correct choice.

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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