Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A multinational organization with 5,000 users is licensed with Microsoft 365 E3. They need to comply with a regulation that requires retaining all Exchange Online mailbox content for 7 years and providing advanced eDiscovery capabilities (including predictive coding) to search through that data. Which Microsoft 365 add-on license should they purchase to meet these requirements most cost-effectively?
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 Compliance add-on
Correct. This add-on provides advanced eDiscovery (including predictive coding) and retention capabilities needed for litigation and compliance.
B
Distractor review
Exchange Online Archiving for Exchange Online Plan 2
Incorrect. Archiving only expands mailbox storage; it does not provide advanced eDiscovery or retention policy customization.
C
Distractor review
Microsoft 365 E5 (full suite upgrade)
Incorrect. Upgrading all users to E5 includes many unnecessary features (e.g., advanced analytics) and is more expensive than the E5 Compliance add-on.
D
Distractor review
Microsoft Purview Audit (Standard) add-on
Incorrect. Audit logs are for tracking user activities, not for retaining mailbox content or providing advanced eDiscovery search.
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.
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 Compliance add-on — Microsoft 365 E5 Compliance is an add-on that provides advanced eDiscovery (with predictive coding) and retention policies for up to 7 years or more. The E3 license includes basic retention and eDiscovery, but lacks predictive coding and other advanced features. Exchange Online Archiving for E3 already provides unlimited archive storage, so it does not address the advanced eDiscovery need. Microsoft 365 E5 is a full suite upgrade that includes many other features not required, making E5 Compliance a more cost-effective add-on. The standalone Audit add-on is not sufficient.
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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