SC-100 · Domain 3: Design security solutions for infrastructure · 28% of the exam
Task 3.1: Design solutions for security posture management in hybrid and multicloud environments
Defender for Cloud posture and the cloud security benchmark, Secure Score, workload protection plans, Azure Arc for hybrid and multicloud, Defender EASM, and Exposure Management attack paths and initiatives.
Study it
Defender for Cloud posture, Secure Score and workload protection plans
Lesson coming
Azure Arc, Defender EASM and Exposure Management attack paths
Lesson coming
Sample questions
Try each one before opening the answer. Every option is explained, with the Microsoft documentation page that proves it.
Question 1 · choose 1
A retailer uses Defender for Cloud's free Foundational CSPM across Azure and AWS. The security architect wants to see how an attacker could chain an internet-exposed VM with a critical vulnerability to a storage account holding customer data, and to prioritize recommendations by that risk. What should the design add?
AMore MCSB recommendations in Foundational CSPM
BThe Defender CSPM plan, for attack path analysis and risk prioritization
CAzure Advisor's security recommendations
DA weekly export of the secure score to Power BI
Show the answer and why
AMore MCSB recommendations in Foundational CSPM
Incorrect
Foundational CSPM gives recommendations and a secure score but no attack path analysis.
BThe Defender CSPM plan, for attack path analysis and risk prioritization
Correct
Attack path analysis and risk prioritization are Defender CSPM capabilities beyond Foundational CSPM.
CAzure Advisor's security recommendations
Incorrect
Advisor surfaces best-practice recommendations, not attack paths across clouds.
DA weekly export of the secure score to Power BI
Incorrect
A score export doesn't show how weaknesses chain together.
Foundational CSPM is free and provides MCSB-based recommendations and the secure score. The paid Defender CSPM plan adds advanced posture features such as AI security posture, attack path analysis and risk prioritization.
A company wants one posture view and server protection in Microsoft Defender for Cloud for its Azure subscriptions, 40 AWS accounts and 600 on-premises Windows and Linux servers. Which two steps should the design include? (Choose TWO.)
ADelegate the AWS accounts to Azure through Azure Lighthouse
BInstall the legacy Log Analytics agent on the on-premises servers and report them to a Defender for Cloud workspace
CDeploy the Azure Monitor Agent to the on-premises servers and send their data to the workspace Defender for Cloud uses
DConnect the AWS accounts to Defender for Cloud with the AWS connector
EOnboard the on-premises servers to Azure Arc so Defender for Servers can protect them
Show the answer and why
ADelegate the AWS accounts to Azure through Azure Lighthouse
Incorrect
Lighthouse delegates Azure resources between Entra tenants, not AWS accounts.
BInstall the legacy Log Analytics agent on the on-premises servers and report them to a Defender for Cloud workspace
Incorrect
The legacy agent is retired and isn't how servers are onboarded today.
CDeploy the Azure Monitor Agent to the on-premises servers and send their data to the workspace Defender for Cloud uses
Incorrect
Defender for Servers no longer uses the Azure Monitor Agent for most plan features; machines outside Azure are connected through Azure Arc.
DConnect the AWS accounts to Defender for Cloud with the AWS connector
Correct
The AWS connector brings AWS resources into Defender for Cloud for posture and workload protection.
EOnboard the on-premises servers to Azure Arc so Defender for Servers can protect them
Correct
Arc-enabled servers appear as Azure resources, so Defender for Cloud can assess and protect them.
Defender for Cloud connects AWS accounts through an AWS connector and GCP projects through a GCP connector. Machines outside Azure, such as on-premises servers, are connected through Azure Arc so that they're managed as Azure resources and covered by Defender for Servers.
The cloud team reports one secure score for the company's Azure estate from the Azure portal, while the SOC reports a different cloud score from the Microsoft Defender portal, and leadership asks which one is wrong. What explains the difference?
AOne team forgot to refresh the score, which updates only once a month
BTwo different models: the risk-based Cloud Secure Score and the classic secure score
CThe Defender portal score includes only on-premises servers
DThe Azure portal score counts custom policy definitions too, which always lower the score compared with the Defender portal
Show the answer and why
AOne team forgot to refresh the score, which updates only once a month
Incorrect
Scores are recalculated far more often than monthly.
BTwo different models: the risk-based Cloud Secure Score and the classic secure score
Correct
Defender for Cloud offers two secure score models with different calculations; the new one weighs asset risk factors and criticality.
CThe Defender portal score includes only on-premises servers
Incorrect
That isn't how the Cloud Secure Score is scoped.
DThe Azure portal score counts custom policy definitions too, which always lower the score compared with the Defender portal
Incorrect
Only built-in MCSB recommendations affect the classic secure score.
Defender for Cloud offers two secure score models. The new Cloud Secure Score, available in the Microsoft Defender portal, is risk-based and incorporates asset risk factors and criticality. The classic secure score remains in the Azure portal. They use different calculations, so the numbers differ. Only built-in MCSB recommendations affect the classic score.
After several acquisitions, a company suspects it has forgotten websites, domains and IP ranges on the internet that no team manages and that aren't in any cloud subscription or inventory. It wants them discovered continuously from an outside-in view, starting from the domains it knows. What should the design use?
Defender EASM continuously discovers and maps internet-facing infrastructure, starting from assets you know, such as your domains.
CAzure Resource Graph queries across subscriptions
Incorrect
Resource Graph sees only resources inside Azure subscriptions.
DDefender for Endpoint device discovery on the corporate network
Incorrect
Device discovery finds devices on internal networks, not forgotten internet properties.
Microsoft Defender External Attack Surface Management continuously discovers and maps your digital attack surface to give an external view of your online infrastructure. Its discovery starts from known legitimate assets and recursively finds connected infrastructure to uncover previously unknown and unmonitored properties.
The board asks the CISO for one measure of how exposed the company is to ransomware, tracked monthly against a target, built from signals across endpoints, identities and cloud resources, with the recommendations that would improve it. What should the posture management process use?
AThe count of open incidents in Defender XDR each month
BDefender for Cloud's classic secure score in the Azure portal, reported monthly with a trend line for each subscription
CA quarterly penetration test report
DA security initiative in Exposure Management, with a target score and its metrics
Show the answer and why
AThe count of open incidents in Defender XDR each month
Incorrect
Incidents measure attacks that happened, not exposure.
BDefender for Cloud's classic secure score in the Azure portal, reported monthly with a trend line for each subscription
Incorrect
That score covers cloud resources only and isn't focused on one threat area.
CA quarterly penetration test report
Incorrect
A point-in-time test doesn't give a monthly, multi-domain exposure measure.
DA security initiative in Exposure Management, with a target score and its metrics
Correct
Initiatives give a metric-driven way to track exposure in a specific area, with scores, target scores, trends and recommendations.
Microsoft Security Exposure Management offers security initiatives as a focused, metric-driven way of tracking exposure in specific security areas. You can view initiative scores, set target scores, check trends and review the associated metrics and recommendations.
A new subscription needs alerts about suspicious DNS activity from its Azure resources. Where do these alerts come from today?
AA standalone Defender for DNS plan purchased separately
BThe Defender CSPM plan's posture recommendations
CMicrosoft Secure Score
DDefender for Servers Plan 2
Show the answer and why
AA standalone Defender for DNS plan purchased separately
Incorrect
Only existing subscribers keep the standalone plan.
BThe Defender CSPM plan's posture recommendations
Incorrect
Posture recommendations don't include DNS threat alerts.
CMicrosoft Secure Score
Incorrect
Secure Score measures posture; it doesn't raise DNS threat alerts.
DDefender for Servers Plan 2
Correct
For new subscriptions, DNS alerts are included in Defender for Servers Plan 2.
Since August 1, 2023, existing Defender for DNS customers can keep the standalone plan, while for new subscriptions alerts about suspicious DNS activity are included in Defender for Servers Plan 2.
What does Microsoft Security Exposure Management provide?
AA unified view of posture across endpoints, cloud and external surfaces
BA replacement for Microsoft Entra ID sign-in logs and audit logs, stored in the Defender portal
CEmail filtering for phishing
DBackup of business-critical data
Show the answer and why
AA unified view of posture across endpoints, cloud and external surfaces
Correct
Exposure Management unifies posture and exposure data across workloads.
BA replacement for Microsoft Entra ID sign-in logs and audit logs, stored in the Defender portal
Incorrect
It doesn't replace identity logs.
CEmail filtering for phishing
Incorrect
That's Defender for Office 365.
DBackup of business-critical data
Incorrect
That's a backup service.
Microsoft Security Exposure Management provides a unified view of security posture across company assets and workloads, spanning endpoints, cloud resources and external attack surfaces.