Quick Answer
The answer is the Azure Monitor Agent (AMA). This is correct because when on-premises servers have no internet connectivity, Azure Arc provides a management and authentication bridge, allowing the AMA to be deployed as an extension to collect logs and forward them to a Log Analytics workspace, which then feeds Microsoft Sentinel. On the Microsoft Cybersecurity Architect exam, this scenario tests your understanding of modern agent deployment versus legacy methods; a common trap is choosing the Log Analytics agent (MMA), which is being deprecated, or the Syslog or CEF connectors, which require a forwarder with internet access. The key distinction is that Azure Arc enables the AMA to operate in isolated environments by using a proxy or private endpoint for outbound data flow. Memory tip: think “Arc + AMA = no internet, no problem” for Sentinel data ingestion from isolated on-premises servers.
This SC-100 practice question tests your understanding of design security solutions for infrastructure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 is planning to use Microsoft Sentinel for security information and event management (SIEM). The security team wants to ensure that Sentinel can ingest logs from on-premises servers that are not connected to the internet. The solution must use Azure Arc for management. Which data connector should you use?
Azure Monitor Agent
AMA can be installed on Arc-enabled servers and send logs to Log Analytics, which Sentinel uses.
Common Event Format (CEF) via AMA
Why wrong: CEF also requires a log forwarder with internet access.
Syslog via AMA
Why wrong: Syslog collection via AMA requires a syslog server, but the agent itself still needs connectivity.
Log Analytics agent (MMA)
Why wrong: MMA is deprecated and not recommended for new deployments.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Monitor Agent
Option A is correct because the Azure Monitor Agent (AMA) can be deployed via Azure Arc to on-premises servers, collecting logs and forwarding them to Sentinel via a Log Analytics workspace. Option B is wrong because the Log Analytics agent (MMA) is being deprecated. Option C is wrong because the Syslog connector typically requires direct connectivity or a forwarder. Option D is wrong because the Common Event Format (CEF) connector also requires a forwarder with internet access.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure Monitor Agent
Why this is correct
AMA can be installed on Arc-enabled servers and send logs to Log Analytics, which Sentinel uses.
Related concept
Read the scenario before looking for a memorised answer.
Common Event Format (CEF) via AMA
Why it's wrong here
CEF also requires a log forwarder with internet access.
Syslog via AMA
Why it's wrong here
Syslog collection via AMA requires a syslog server, but the agent itself still needs connectivity.
Log Analytics agent (MMA)
Why it's wrong here
MMA is deprecated and not recommended for new deployments.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Identify which SC-100 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Design security solutions for infrastructure — This question tests Design security solutions for infrastructure — Read the scenario before looking for a memorised answer..
The correct answer is: Azure Monitor Agent — Option A is correct because the Azure Monitor Agent (AMA) can be deployed via Azure Arc to on-premises servers, collecting logs and forwarding them to Sentinel via a Log Analytics workspace. Option B is wrong because the Log Analytics agent (MMA) is being deprecated. Option C is wrong because the Syslog connector typically requires direct connectivity or a forwarder. Option D is wrong because the Common Event Format (CEF) connector also requires a forwarder with internet access.
Identify which SC-100 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 2026
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