SC-100 Hard Questions — 25 Difficult Questions

Question 1

Refer to the exhibit. You are reviewing a Conditional Access policy in Azure AD. The policy requires MFA and a compliant device for all users and all cloud apps. Some users report that they are able to access apps without being prompted for MFA even though their devices are compliant. What is the most likely reason?

Accepted Answer

The policy is set to 'Report-only' mode. Option B is correct because a Conditional Access policy set to 'Report-only' mode evaluates the policy and logs results but does not enforce any controls, such as requiring MFA or a compliant device. Users can access apps without MFA prompts because the policy is not actively blocking or challenging them, even if their devices are compliant. This mode is used for testing before enabling enforcement.

Answer

The policy does not include all cloud apps

Answer

The policy excludes specific locations

Answer

The policy does not include session controls to enforce MFA re-prompt

Question 2

An organization is implementing a Zero Trust identity strategy. They have a mix of on-premises Active Directory and Azure AD. They want to enforce conditional access policies that require device compliance for accessing sensitive apps. However, some users report that their devices are not being evaluated for compliance even though they are enrolled in Microsoft Intune. What should the organization check first?

Accepted Answer

Verify that devices are registered in Azure AD. Device compliance evaluation in a hybrid identity environment requires that devices are registered in Azure AD (Azure AD Registration) so that Azure AD can associate the device identity with Intune compliance data. Even if a device is enrolled in Intune, without Azure AD registration, Conditional Access policies cannot evaluate its compliance status because the device identity is not recognized by Azure AD during authentication.

Answer

Ensure Intune compliance policies are assigned to the correct user groups

Answer

Confirm that devices are Azure AD Joined

Answer

Check if users have enabled multi-factor authentication

Question 3

A company is designing a Zero Trust security posture for their Azure environment. They need to assess and improve their security posture. Which TWO actions should they take? (Choose two.)

Accepted Answer

Use Azure Policy to enforce security configurations. Azure Policy enforces organizational standards and assesses compliance at scale, which is a core Zero Trust principle of continuous verification and policy-driven access control. By applying policies that enforce security configurations (e.g., requiring HTTPS, restricting public network access), the company can proactively prevent misconfigurations and maintain a consistent security baseline across their Azure environment.

Answer

Enable Azure Update Management for all VMs

Answer

Deploy Microsoft Entra Permissions Management

Answer

Use Microsoft Security Copilot to generate security policies

Question 4

A company has a Microsoft Sentinel workspace that ingests data from multiple sources. The SOC team wants to improve the efficiency of investigating incidents by using UEBA capabilities. Which two actions should the team take to enable and configure UEBA in Sentinel?

Accepted Answer

Set the entity behavior analytics to 'Active' in the Sentinel configuration.. Options B and D are correct. Enabling UEBA is done per workspace (B). Setting the entity behavior analytics to 'Active' enables the feature (D). Option A is incorrect because UEBA is not a data connector; it's a feature enabled in the workspace settings. Option C is incorrect because the analytics rule for UEBA is not a separate rule; UEBA is enabled at the workspace level. Option E is incorrect because time range selection is not part of enabling UEBA; it's part of analytics rule configuration.

Answer

Install the UEBA data connector from the Sentinel content hub.

Answer

Create an analytics rule that uses the UEBA template.

Answer

Define a time range for entity behavior baselines.

Question 5

A company uses Azure Policy to audit storage accounts for secure transfer (HTTPS) enforcement. The policy is set to 'AuditIfNotExists' but compliance shows 0% non-compliant storage accounts even though some accounts have secure transfer disabled. What is the most likely cause?

Accepted Answer

The policy should use 'Audit' or 'Deny' effect instead of 'AuditIfNotExists'. The 'AuditIfNotExists' effect is designed to audit resources that do not have a specific extension or sub-resource (e.g., a diagnostic setting or an agent). For a policy that needs to check a property of the storage account itself (like secure transfer enabled), the correct effect is 'Audit' (or 'Deny'). 'AuditIfNotExists' will never flag a storage account as non-compliant for missing the secure transfer property because it is looking for the absence of a child resource, not a property misconfiguration.

Answer

The policy is in 'audit' mode and does not evaluate

Answer

The storage accounts are in a different region

Answer

The policy assignment scope does not include the non-compliant accounts

Question 6

A global organization uses Microsoft Sentinel for SIEM and Microsoft Defender for Cloud for cloud security posture management. The security team notices that critical alerts from Azure Active Directory Identity Protection are not triggering automated response playbooks in Sentinel. The team needs to ensure that all high-severity Identity Protection risk detections automatically create incidents in Sentinel and trigger a playbook to block the user. What should the team configure?

Accepted Answer

Enable the Identity Protection data connector and create a Microsoft Security incident creation rule for Identity Protection.. Option A is correct because to have Identity Protection risk detections automatically create incidents in Microsoft Sentinel and trigger a playbook, you must first enable the Identity Protection data connector (which brings the alerts into Sentinel) and then create a Microsoft Security incident creation rule specifically for Identity Protection. This rule ingests the alerts as security incidents, and you can attach an automation rule to run a playbook (e.g., to block the user) when a high-severity incident is created. Without the incident creation rule, the alerts would be ingested as raw events but not automatically turned into incidents.

Answer

Enable the Azure Active Directory Identity Protection data connector in Sentinel.

Answer

Configure diagnostic settings on Azure AD to stream logs to Sentinel and create a playbook automation rule.

Answer

Configure the Identity Protection connector with the 'Create incidents' toggle enabled.

Question 7

A company has a hybrid identity infrastructure with on-premises Active Directory synchronized to Azure AD using Azure AD Connect. The security team wants to use Microsoft Defender for Identity (MDI) to detect on-premises attacks. They have installed the MDI sensor on all domain controllers. However, they notice that some alerts are missing. What is the most likely cause?

Accepted Answer

The necessary Windows event logs are not being forwarded to the MDI sensor.. Microsoft Defender for Identity relies on Windows Event Logs (specifically Event ID 4776, 4624, 4648, and others) to detect on-premises attacks such as Pass-the-Hash, Golden Ticket, and DCSync. If these logs are not being forwarded to the MDI sensor (e.g., due to disabled audit policies or log size limits), the sensor cannot analyze the events, resulting in missing alerts. The sensor itself is installed on domain controllers, but it must have access to the relevant security logs to function correctly.

Answer

MDI is not integrated with Microsoft Sentinel.

Answer

Azure AD Connect is not syncing frequently enough.

Answer

The sensor is not licensed for all detection types.

Question 8

A company deploys Azure Bastion in a VNet. They want to allow a security engineer to connect to a Windows VM in a peered VNet using Azure Bastion. The engineer can see the VM in the portal but cannot connect. Which configuration is most likely missing?

Accepted Answer

The peered VNet does not have 'Allow Azure Bastion Communication' enabled on the peering connection.. Azure Bastion requires the 'Allow Azure Bastion Communication' setting to be enabled on the peering connection for the peered VNet. Without this, the Bastion service cannot route traffic to the target VM in the peered VNet, even though the VM is visible in the portal. This setting allows the Bastion's control plane and data plane to communicate across the peering link.

Answer

The Azure Bastion subnet size is /28.

Answer

The VM's subnet does not have an inbound NSG rule allowing RDP (3389) from the Azure Bastion subnet.

Answer

The VM does not have Azure AD authentication enabled.

Question 9

A company is designing a secure hybrid network architecture. They have an on-premises network connected to Azure via ExpressRoute and a site-to-site VPN as backup. They want to ensure that traffic from Azure to on-premises always uses ExpressRoute when available, but automatically fails over to VPN if ExpressRoute goes down. Which configuration should they implement?

Accepted Answer

Configure BGP on both connections and assign a higher local preference (e.g., 200) to routes learned via ExpressRoute.. Option D is correct because BGP local preference is an attribute used to influence outbound traffic from an AS. By assigning a higher local preference (e.g., 200) to routes learned via ExpressRoute, Azure will prefer those routes over VPN routes (which default to local preference 100). This ensures that traffic from Azure to on-premises uses ExpressRoute when available, and automatically fails over to the VPN if the ExpressRoute BGP session drops, as the VPN routes will then be selected.

Answer

Configure the VPN to have a lower BGP weight than ExpressRoute.

Answer

Use both connections in active-active mode with BGP and rely on ECMP.

Answer

Disable BGP on the VPN connection and use static routes with a higher metric for the VPN.

Question 10

Which THREE components are required to implement a secure hybrid network with Azure using a site-to-site VPN?

Accepted Answer

VPN gateway (route-based). A route-based VPN gateway (option C) is required for site-to-site VPN connections because it uses dynamic routing (BGP) and supports IKEv2, enabling automatic failover and policy-based traffic selectors. This is essential for secure hybrid networking as it allows Azure to route traffic to on-premises networks via the VPN tunnel without static route limitations.

Answer

Public IP address for the VPN device

Answer

ExpressRoute circuit

Question 11

A company is designing a data classification strategy for their Azure environment. They need to identify sensitive data stored in Azure SQL Database. Which TWO solutions should they consider?

Accepted Answer

Azure SQL Data Discovery & Classification. Azure SQL Data Discovery & Classification is correct because it is a native feature of Azure SQL Database that automatically discovers, classifies, and labels sensitive columns (e.g., credit card numbers, PII) directly within the database engine. It provides a built-in dashboard for auditing and monitoring classification status, making it the primary tool for identifying sensitive data stored in Azure SQL Database.

Answer

Azure Information Protection

Answer

Azure Purview

Answer

Azure Policy

Question 12

A company uses Azure Policy to enforce compliance. They have a custom policy that denies creation of storage accounts without encryption enabled. A developer reports that they cannot create a storage account even though they specified encryption. What is the most likely cause?

Accepted Answer

The policy's 'then' block uses 'deny' but the condition logic evaluates the 'encryption' property incorrectly. Option C is correct because the most likely cause is that the policy's condition logic incorrectly evaluates the 'encryption' property. Azure Policy uses JSON-based condition expressions to check resource properties; if the condition does not match the actual property path (e.g., 'properties.encryption.enabled' vs. 'properties.encryption') or uses an incorrect operator, the deny effect will trigger even when encryption is specified. This is a common misconfiguration in custom policies.

Answer

The developer does not have 'Microsoft.Authorization/policyAssignments/write' permission

Answer

The policy effect is set to 'audit' instead of 'deny'

Answer

The policy is scoped to a management group that includes the developer's subscription

Question 13

A company uses Azure Key Vault to store secrets for their applications. They want to ensure that secrets can be automatically rotated when they are close to expiration. Which solution should they implement?

Accepted Answer

Use Key Vault event grid subscription to trigger an Azure Function for rotation. Option C is correct because Azure Key Vault can emit events via Event Grid when a secret is near expiration, and an Azure Function subscribed to that event can perform the rotation logic immediately. This event-driven approach ensures near-real-time rotation without polling, aligning with the requirement for automatic rotation close to expiration.

Answer

Use Azure DevOps release pipeline to rotate secrets

Answer

Use Azure Automation with a schedule to check expiration and rotate

Answer

Use Azure Logic Apps with a recurrence trigger to rotate secrets

Question 14

A company is planning a migration to Azure and wants to ensure that their security operations center (SOC) has visibility into all Azure resources. They need to collect security logs from multiple subscriptions into a central workspace. Which Azure service should they use?

Accepted Answer

Azure Sentinel. Azure Sentinel is the correct choice because it is a cloud-native SIEM (Security Information and Event Management) solution designed to ingest security logs from multiple Azure subscriptions, on-premises sources, and third-party clouds into a single central workspace. It provides the SOC with unified visibility, threat detection, and incident response across all Azure resources, meeting the requirement for centralized security log collection.

Answer

Azure Security Center

Answer

Azure Policy

Answer

Azure Monitor

Question 15

A company uses Azure Security Center and Azure Sentinel. They want to prioritize remediation of vulnerabilities based on risk. Which metric should they use to rank vulnerabilities?

Accepted Answer

Azure Secure Score impact. Azure Secure Score impact is the correct metric because it directly reflects the risk-based prioritization of security recommendations within Azure Security Center. Each recommendation has a Secure Score impact value that indicates how much your overall security posture improves when remediated, allowing you to prioritize actions that reduce the most risk. This aligns with the scenario's goal of ranking vulnerabilities by risk, as Secure Score impact is calculated using factors like exploitability, threat intelligence, and potential business impact.

Answer

Common Vulnerability Scoring System (CVSS) score

Answer

Compliance status from Azure Policy

Answer

Number of security alerts triggered

Question 16

A company is planning their cloud governance strategy. They have multiple business units with varying compliance requirements. They need to enforce policies consistently across subscriptions while allowing some flexibility. Which Azure governance structure should they recommend?

Accepted Answer

Use a management group hierarchy with Azure Policy assignments and exemptions.. B is correct because a management group hierarchy allows the company to organize subscriptions by business unit or compliance requirement, then apply Azure Policy assignments at the management group level to enforce consistent policies across all subscriptions. Exemptions can be granted at lower scopes (e.g., specific subscriptions or resource groups) to provide the required flexibility while maintaining overall governance. This structure centralizes policy enforcement without requiring separate tenants or manual RBAC assignments.

Answer

Assign RBAC roles to each subscription owner.

Answer

Create separate Azure AD tenants for each business unit.

Answer

Use Azure Blueprints with locked permissions.

Question 17

A company is implementing a Zero Trust security model using Microsoft 365 Defender. Which THREE of the following are key principles they should follow?

Accepted Answer

Use least privilege access by limiting user permissions with Just-In-Time and Just-Enough-Access.. Option B is correct because Zero Trust mandates least privilege access, and Microsoft 365 Defender integrates with Azure AD Privileged Identity Management (PIM) to enforce Just-In-Time (JIT) and Just-Enough-Access (JEA) policies. This ensures users receive only the permissions necessary for a specific task, for a limited duration, reducing the risk of lateral movement and privilege escalation.

Answer

Trust all traffic originating from within the corporate network.

Answer

Provide implicit trust to known users and devices.

Question 18

Which THREE of the following are best practices for securing Azure Kubernetes Service (AKS)?

Accepted Answer

Enable Azure Policy for AKS. A is correct because Azure Policy for AKS enforces organizational standards and assesses compliance at scale by applying built-in policies that restrict privileged containers, require pod security standards, and enforce HTTPS ingress. This reduces the attack surface and ensures clusters adhere to security baselines without manual intervention.

Answer

Store secrets in Kubernetes secrets

Answer

Allow all node pools to communicate freely

Question 19

Which TWO of the following are true about Azure Policy initiatives?

Accepted Answer

Initiatives can be assigned to management groups, subscriptions, or resource groups. Azure Policy initiatives (also known as policy sets) are designed to group multiple policy definitions together to achieve a common compliance goal. They can be assigned at the management group, subscription, or resource group scope, which allows for broad or granular enforcement of compliance rules across the Azure hierarchy.

Answer

Initiatives cannot be assigned to a management group

Answer

An initiative can only contain one policy definition

Answer

Initiatives are predefined and cannot be customized

Question 20

A company is designing a security operations strategy. They want to use Microsoft Sentinel to detect and respond to threats across their hybrid environment. They need to ensure that logs from all sources are collected cost-effectively and that analysts can easily query data. Which data ingestion strategy should they recommend?

Accepted Answer

Use Analytics logs for high-value security logs and Basic logs for verbose logs with low security value.. Option D is correct because it balances cost and query performance by routing high-value security logs (e.g., Windows Security Events, network logs) to the Analytics logs table for full KQL query capabilities and retention, while sending verbose, low-security-value logs (e.g., DNS debug, firewall flow logs) to the Basic logs table, which offers lower ingestion cost and limited query features (e.g., no KQL summarization). This tiered approach ensures analysts can efficiently hunt on critical data without incurring unnecessary costs for voluminous, less actionable logs.

Answer

Send all logs to the Basic logs table to reduce costs.

Answer

Send only Windows Security Events to Sentinel.

Answer

Send all logs to the Analytics logs table for full query capabilities.

SC-100 Hard Questions — 25 Difficult Questions

Exhibit

SC-100 Hard Questions — 25 Difficult Questions

Exhibit