The answer is to configure the unified automated investigation and response playbook in Microsoft Defender XDR. This is correct because the unified AIR playbook coordinates automated actions across Defender for Office 365 and Defender for Endpoint, handling both the phishing email and the malicious file in a single, orchestrated workflow. On the MS-102 exam, this scenario tests your understanding that separate playbooks or manual triggers cannot achieve the cross-domain automation required when a phishing link leads to a file download. A common trap is choosing automation levels, which apply to individual playbooks, not the cross-product coordination. Remember the memory tip: "One unified playbook for the email-to-file chain" — if the attack spans email and endpoint, you need the unified playbook to bridge them.
MS-102 Practice Question: Manage security and threats by using Microsoft Defender XDR
This MS-102 practice question tests your understanding of manage security and threats by using microsoft defender xdr. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your organization uses Microsoft Defender for Office 365 and Microsoft Defender for Endpoint. You need to configure automatic investigation and response (AIR) to handle a phishing email that was delivered to a user's inbox and the user clicked a link that downloaded a malicious file. What should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the unified automated investigation and response playbook in Microsoft Defender XDR.
Option C is correct because the unified AIR playbook in Microsoft Defender XDR coordinates automated actions across Defender for Office 365 and Defender for Endpoint, handling the email and the file in one playbook. Option A is wrong because separate playbooks do not coordinate. Option B is wrong because manual triggers are not automated. Option D is wrong because automation levels apply to individual playbooks.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Configure the unified automated investigation and response playbook in Microsoft Defender XDR.
Why this is correct
The unified playbook coordinates actions across workloads.
Related concept
Static NAT maps one inside address to one outside address.
✗
Configure separate automated investigation playbooks in each workload.
Why it's wrong here
Separate playbooks do not coordinate cross-workload investigations.
✗
Set the automation level for each playbook to 'Full – remediate automatically'.
Why it's wrong here
Automation levels apply to individual playbooks, not cross-workload coordination.
✗
Enable manual investigation triggers in Microsoft Defender XDR.
Why it's wrong here
Manual triggers do not enable automation.
Common exam traps
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.
Detailed technical explanation
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.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related MS-102 NAT questions on configuration and troubleshooting.
Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by using Microsoft Defender XDR — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Configure the unified automated investigation and response playbook in Microsoft Defender XDR. — Option C is correct because the unified AIR playbook in Microsoft Defender XDR coordinates automated actions across Defender for Office 365 and Defender for Endpoint, handling the email and the file in one playbook. Option A is wrong because separate playbooks do not coordinate. Option B is wrong because manual triggers are not automated. Option D is wrong because automation levels apply to individual playbooks.
What should I do if I get this MS-102 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related MS-102 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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