Question 380
After a disk image is acquired, an analyst needs to search it for a malware hash. How should the original evidence be protected?
- Replace the original image with a list of matching hashes only
- Use the original evidence drive as a sandbox execution disk
- Analyze verified copies, leaving original evidence read-only
- Allow every analyst to modify the original image to annotate findings
Explanation
Correct Answer
C:Working copies permit repeatable searches and tool experiments without risking alteration of the preserved source artifact.
Incorrect Answers
A:A hash-hit summary omits other artifacts and cannot support independent investigation of alternative hypotheses.
B:Running malware can change files and compromise the examination environment, defeating preservation goals.
D:Writable shared originals undermine integrity and make it hard to distinguish discovered data from analyst changes.
Question 381
An SOC has deployed Microsoft Sentinel, but a firewall feed is not appearing in the expected table. What is the most useful first validation?
- Broaden the scheduled analytic rule time window to look for the missing firewall records
- Increase Log Analytics retention from 30 to 90 days before checking the connector
- Check the relevant data connector, collection pathway, workspace, and ingestion status
- Increase the firewall alert severity threshold in Sentinel without testing data delivery
Explanation
Correct Answer
C:A connected-looking data source may still lack agent forwarding, correct workspace routing, or successful ingestion; verify the entire chain before changing rules.
Incorrect Answers
A:A larger query window helps only when the events were ingested. Rule scope is downstream from the collector, connector, and workspace routing that the analyst must diagnose first.
B:Retention governs how long collected events remain searchable; extending it does not cause an agent or integration to begin forwarding missing current firewall records.
D:Changing alert severity or filtering adjusts incident presentation, not whether source events reached the intended Log Analytics table. The ingestion pathway still requires validation.
Question 382
A Sentinel data connector is healthy, but repeated suspicious sign-ins do not produce an incident. Which configuration should the analyst inspect?
- Extend the Log Analytics data retention period for the sign-in event table
- Increase the refresh frequency of a Sentinel workbook tracking the sign-in alerts
- Change the data connector to send sign-in records to an unrelated workspace
- Check the rule query, entity mapping, thresholds and incident settings
Explanation
Correct Answer
D:Healthy ingestion establishes only that records exist; an analytics rule must match the events and generate alerts or incidents as configured.
Incorrect Answers
A:Keeping records for longer supports historical hunting, but a detection that fails to match recent events will not start firing solely because retention increased.
B:A workbook displays and explores data but does not itself create incidents. Scheduled analytics query logic and incident-generation settings must be investigated directly.
C:Sending records to a different destination may make matters worse by separating the analytics rule from its source table; it does not diagnose a healthy connector and broken detection.
Question 383
A cloud administrator unexpectedly removes a production network security group rule. Which Azure telemetry most directly describes that management-plane change?
- Microsoft Entra sign-in events that describe user authentication outcomes
- The Azure Activity Log for subscription and resource control-plane operations
- Network flow telemetry generated by the network security group traffic rules
- The current network security group configuration read from Azure Resource Graph
Explanation
Correct Answer
B:The Activity Log records management operations on Azure resources, which helps identify who modified the security group rule and when.
Incorrect Answers
A:Entra sign-in logs support user authentication investigations, but an Azure network security group change is a subscription or resource management action recorded in the Activity Log.
C:Flow telemetry describes traffic allowed or denied by networking controls. It generally cannot attribute the control-plane API request that edited a security group rule.
D:A configuration snapshot can show the resulting rules, but without the relevant change audit it does not establish the original actor and management-operation time.
Question 384
A Sentinel alert identifies repeated denied cloud sign-ins followed by a successful sign-in from a new country. Which source should be correlated first?
- Azure Activity Log entries for resource deployment and control-plane updates
- Defender for Cloud security recommendations regarding account-related posture
- Microsoft Entra directory audit logs for application and role configuration changes
- Microsoft Entra sign-in records and associated risk context
Explanation
Correct Answer
D:Identity sign-in records can establish the authentication sequence and help determine whether the successful event warrants account containment.
Incorrect Answers
A:Azure Activity Log tracks resource operations at management scopes, not the per-attempt authentication results required to reconstruct the user sign-in sequence.
B:Posture findings can help with risk context but do not replace the underlying Entra sign-in record details needed to attribute denied and successful authentication.
C:Directory audit logs are important for identity configuration events; sign-in logs are the direct evidence for successive authentication attempts, outcomes, addresses, and applications.
Question 385
A Sentinel investigation reveals that a newly created service principal has tenant-wide permissions. What is the best next step?
- Audit the principal creation, grants, consents and subsequent use
- Check only the service principal display name and application registration description
- Delete the service principal immediately without recording its permissions or activity
- Review only interactive human sign-ins while excluding application-authentication records
Explanation
Correct Answer
A:Privilege assignment and consent evidence can distinguish an authorized deployment from attacker-created persistence across the cloud tenant.
Incorrect Answers
B:App names and descriptions are attacker-editable context, not authorization evidence. Creation audit, permission grants, tenant roles, and token usage must be examined together.
C:Premature deletion can disrupt workloads and destroy evidence of persistence. Investigators should preserve audit context and coordinate proportionate containment under authorization.
D:Service principals often authenticate noninteractively, so restricting the investigation to human sign-ins can overlook the very credentials and activity under scrutiny.
Question 386
A SOC wants a single investigation to combine cloud security recommendations with suspicious endpoint and sign-in events. Which design is most suitable?
- Rely exclusively on Defender for Cloud posture recommendations and stop collecting endpoint events
- Route each product to separate analyst-only workspaces with no shared correlation fields
- Correlate Defender for Cloud signals in Sentinel
- Assume Defender for Cloud recommendations and Sentinel incidents are interchangeable data types
Explanation
Correct Answer
C:Posture and protection findings can be investigated alongside sign-in, endpoint, and resource records when their connectors and entity mapping are configured.
Incorrect Answers
A:Configuration findings do not reconstruct malicious process execution, credential theft, or lateral movement on virtual machines; endpoint evidence remains necessary for incident scope.
B:Siloed data reduces the ability to connect resource exposure, account behavior, and endpoint execution. The integration design should maintain scoped access and common entities.
D:Posture recommendations and incident detections serve different purposes and require context before an analyst treats a risk as an active compromise.
Question 387
An AWS IAM access key is suspected of creating a new privileged role. What evidence is most useful to identify the API caller and the sequence of actions?
- CloudTrail management events identifying the API actor and action
- VPC Flow Logs for the subnet where the alleged IAM API caller ran
- AWS Config resource history without confirming the API caller in CloudTrail
- AWS IAM Access Analyzer findings without the underlying CloudTrail management events
Explanation
Correct Answer
A:CloudTrail management events provide API audit context for IAM role changes and can connect access keys or assumed roles to specific actions.
Incorrect Answers
B:Flow logs show packet and connection metadata, not which AWS API operation created a role or the identity attached to that management request.
C:Resource configuration history may show changes to supported resources, but CloudTrail management events provide the direct API operation, caller, and request context.
D:Access Analyzer can identify external or unintended access paths, but its findings are not a comprehensive action-by-action API audit for attributing IAM role creation.
Question 388
AWS GuardDuty reports that an EC2 instance is communicating with infrastructure associated with a known command-and-control network. What should the analyst do?
- Label the GuardDuty finding as confirmed data exfiltration based on destination reputation alone
- Apply a VPC-wide network ACL deny rule before validating affected instance scope
- Validate the finding and respond to the affected instance
- Automatically close the GuardDuty finding after blocking one destination address
Explanation
Correct Answer
C:GuardDuty findings are detection signals that need investigation; instance identity, flow context, and approved isolation procedures guide a defensible response.
Incorrect Answers
A:A suspicious remote endpoint is evidence of concern, not direct proof of what was transmitted. Bytes, processes, object access, and packet context need corroboration.
B:A broad network action may interrupt healthy workloads and still miss other attack paths. Scoping the finding and obtaining response authorization are safer first steps.
D:A single blocked IP may limit one communication path, but it cannot establish the infection mechanism, other destinations, or whether compromised credentials remain active.
Question 389
An AWS organization needs a central place to review security findings from multiple AWS security services. Which capability is most relevant?
- CloudTrail alone as a replacement for all security findings and alert workflows
- Amazon Macie classification findings as the sole cross-service detection queue
- AWS Security Hub for consolidated integrated security findings
- AWS Config compliance snapshots as a complete replacement for threat detections
Explanation
Correct Answer
C:Security Hub provides a consolidated security-operations view and workflows for findings from supported AWS and third-party sources.
Incorrect Answers
A:CloudTrail supplies API activity evidence but does not by itself implement a comprehensive findings aggregation and prioritization service.
B:Macie specializes in sensitive-data discovery and certain S3-related findings; it does not replace general aggregation of GuardDuty, Inspector, and other supported findings.
D:Configuration assessments surface drift and posture issues but are not a substitute for the threat findings and operational workflows that a security hub can consolidate.
Question 390
A security analyst must detect and prioritize publicly accessible storage and noncompliant AWS configuration controls. Which complementary AWS capability is most directly aligned?
- Amazon GuardDuty threat findings without configuration posture control assessments
- An AWS Config recorder enabled with no suitable rule evaluations or findings workflow
- CloudTrail Lake queries limited to cloud API history instead of posture-control evaluations
- AWS Security Hub CSPM security standards and posture-control findings
Explanation
Correct Answer
D:The cloud security posture management capability evaluates configured security controls and exposes misconfiguration or compliance-oriented findings.
Incorrect Answers
A:GuardDuty detects signs of malicious activity and compromised resources. Misconfiguration and standards-based posture checks require a complementary control-evaluation mechanism.
B:Recording configuration state creates useful evidence, but it does not automatically deliver prioritized standards-oriented posture findings unless the evaluations and workflow are configured.
C:CloudTrail Lake helps analyze recorded AWS activity, but API history alone does not compute every configuration-control compliance finding across in-scope resources.