Question 360
A network auditor asks how to detect ALBs created without access logging. Which continuous control is useful?
- Create an AWS Config compliance check for supported ALB access-log settings
- Grant the flow-log delivery role the required CloudWatch Logs write permissions
- Use request-level application or load-balancer logs because VPC Flow Logs are flow metadata
- Enable the ALB access logs and complement them with application logging where full headers are required
Explanation
Correct Answer
A:Configuration assessment can flag resources that violate the required monitoring policy without sampling their live traffic.
Incorrect Answers
B:Delivery configuration and IAM authorization must both allow log-stream creation and event publication; this belongs to authorized publication of VPC flow telemetry, while the problem is automated verification of load-balancer logging posture.
C:Network flow summaries do not include HTTP payload and URI content, so a different telemetry layer is required; this changes selecting the right logging layer for HTTP investigation, not the necessary automated verification of load-balancer logging posture.
D:In the web request forensic evidence beyond network metadata workflow, ALB access logging contains structured HTTP request details, while complete custom header capture may require application-level instrumentation; the current case needs automated verification of load-balancer logging posture.
Question 361
A central SOC needs API audit records from member AWS accounts under one security account. What scalable mechanism should be considered?
- Deliver VPC Flow Logs to centrally governed storage with restrictive write/delete controls and retention
- Configure AWS WAF logging to an appropriate supported destination
- Record supported endpoint configurations with AWS Config and API changes with CloudTrail
- Configure an organization-wide CloudTrail trail or supported organization event collection
Explanation
Correct Answer
D:Organization trails consolidate eligible management events across participating accounts for common security analysis.
Incorrect Answers
A:Centralized log custody and controlled permissions reduce risk that workload operators can erase records of network activity; that addresses tamper-resistant multi-account network flow retention, rather than centralized administrative event collection across accounts.
B:WAF request logs show rule evaluation and final actions, providing decision evidence beyond CloudFront's general access response; this belongs to rule-level web firewall decision evidence, while the problem is centralized administrative event collection across accounts.
C:Resource history captures posture while control-plane event records associate modifications with specific authenticated callers; this changes auditable private endpoint policy changes, not the necessary centralized administrative event collection across accounts.
Question 362
An incident-response workflow must notify the team when Config flags an overly broad ingress rule. Which routing service connects finding events to a notification target?
- Match the compliance status change with an EventBridge rule and invoke the approved notification target
- Examine CloudTrail events for the delete or update flow-log API action and its principal
- Enable AWS Config for security-group recording and retained configuration history
- Create an AWS Config compliance check for supported ALB access-log settings
Explanation
Correct Answer
A:EventBridge connects service-generated state events to responders without continuous manual polling of console pages.
Incorrect Answers
B:Administrative deletion is a control-plane operation and appears in audit events, not inside the removed flow-log stream itself; this belongs to investigation of log-tampering administration events, while the problem is event-triggered alerting for network compliance findings.
C:Config tracks supported resource states and changes over time for posture reconstruction; this changes long-term history of firewall rule configuration, not the necessary event-triggered alerting for network compliance findings.
D:In the automated verification of load-balancer logging posture workflow, configuration assessment can flag resources that violate the required monitoring policy without sampling their live traffic; the current case needs event-triggered alerting for network compliance findings.
Question 363
A security analyst queries flow logs but cannot find HTTP URLs or request bodies. What is the correct interpretation?
- Grant the flow-log delivery role the required CloudWatch Logs write permissions
- Deliver VPC Flow Logs to centrally governed storage with restrictive write/delete controls and retention
- Use request-level application or load-balancer logs because VPC Flow Logs are flow metadata
- Enable VPC Flow Logs and query their action fields for the affected network resources
- Enable the ALB access logs and complement them with application logging where full headers are required
Explanation
Correct Answer
C:Network flow summaries do not include HTTP payload and URI content, so a different telemetry layer is required.
Incorrect Answers
A:Delivery configuration and IAM authorization must both allow log-stream creation and event publication; that addresses authorized publication of VPC flow telemetry, rather than selecting the right logging layer for HTTP investigation.
B:Centralized log custody and controlled permissions reduce risk that workload operators can erase records of network activity; this belongs to tamper-resistant multi-account network flow retention, while the problem is selecting the right logging layer for HTTP investigation.
D:In the rejected flow evidence across VPC environments workflow, flow logs record accept/reject decisions and packet metadata at the chosen aggregation scope; the current case needs selecting the right logging layer for HTTP investigation.
E:This produces web request forensic evidence beyond network metadata: ALB access logging contains structured HTTP request details, while complete custom header capture may require application-level instrumentation; the stem instead tests selecting the right logging layer for HTTP investigation.
Question 364
Security compliance wants to detect any network path within an AWS account that violates a defined rule, such as an untrusted source reaching a protected database subnet. It needs findings across paths matching a reusable policy scope, not one manually selected source-to-destination query. Which AWS feature fits?
- Rely on CloudTrail API event history alone to report every currently permitted packet path
- Use only VPC Flow Logs to discover whether no untrusted path is permitted
- Enable Route 53 Resolver query logging for each relevant VPC
- Define an Amazon VPC Network Access Analyzer scope and run its analysis for matching paths
Explanation
Correct Answer
D:Network Access Analyzer analyzes VPC network configurations against reusable Network Access Scope match and exclusion criteria and returns findings for possible unwanted connectivity. It is not limited to one selected pair.
Incorrect Answers
A:CloudTrail captures management-plane changes and principals; it cannot enumerate all allowed network paths satisfying a policy across current security groups and routes.
B:Flow Logs record observed flows, not every path configuration could allow. Lack of observed traffic does not prove that an unintended route and security combination is absent.
C:Resolver query records reveal DNS lookup activity, not reusable network-path policy violations against subnets, interfaces, routing tables and security groups.
Question 365
A security review asks which traffic was blocked by a NACL during a scanning event. Which logs and interpretation are relevant?
- Enable AWS Config for security-group recording and retained configuration history
- Use request-level application or load-balancer logs because VPC Flow Logs are flow metadata
- Query appropriately structured S3 log data through Amazon Athena
- Inspect VPC Flow Logs for REJECT actions while correlating security group and NACL configuration
Explanation
Correct Answer
D:REJECT reports denial but does not alone identify which control denied every packet; configuration correlation supports attribution.
Incorrect Answers
A:Config tracks supported resource states and changes over time for posture reconstruction; that addresses long-term history of firewall rule configuration, rather than distinguishing logged denial from exact blocking control.
B:Network flow summaries do not include HTTP payload and URI content, so a different telemetry layer is required; this belongs to selecting the right logging layer for HTTP investigation, while the problem is distinguishing logged denial from exact blocking control.
C:Athena provides SQL-style analysis over supported S3 log formats, enabling correlation across separately collected telemetry sources; this changes cross-log correlation over retained S3 security evidence, not the necessary distinguishing logged denial from exact blocking control.
Question 366
An organization wants every new VPC endpoint to be audited for policy changes. What combination supports accountability?
- Query CloudTrail for the relevant networking-configuration API action and caller identity
- Use AWS Config or approved inventory automation to track Traffic Mirroring session configuration
- Enable AWS Config for security-group recording and retained configuration history
- Record supported endpoint configurations with AWS Config and API changes with CloudTrail
Explanation
Correct Answer
D:Resource history captures posture while control-plane event records associate modifications with specific authenticated callers.
Incorrect Answers
A:CloudTrail records supported network control-plane API calls and actor metadata, unlike per-packet flow logs; that addresses principal attribution for transit route modifications, rather than auditable private endpoint policy changes.
B:Configuration history and periodic verification detect changed mirror targets or filters even when captured traffic volume seems normal; this belongs to accountability for packet capture destination changes, while the problem is auditable private endpoint policy changes.
C:Config tracks supported resource states and changes over time for posture reconstruction; this changes long-term history of firewall rule configuration, not the necessary auditable private endpoint policy changes.
Question 367
A WAF rate-based rule detects elevated web activity and operators need a time-series signal for alerting. Which telemetry is available?
- Use AWS WAF CloudWatch metrics and alarms for rule match or blocked-request activity
- Configure AWS WAF logging to an appropriate supported destination
- Enable the ALB access logs and complement them with application logging where full headers are required
- Query appropriately structured S3 log data through Amazon Athena
Explanation
Correct Answer
A:WAF publishes rule-level metrics that can drive alarm thresholds without independently parsing every raw web request log.
Incorrect Answers
B:WAF request logs show rule evaluation and final actions, providing decision evidence beyond CloudFront's general access response; this belongs to rule-level web firewall decision evidence, while the problem is quantitative monitoring of web firewall rule activity.
C:ALB access logging contains structured HTTP request details, while complete custom header capture may require application-level instrumentation; this changes web request forensic evidence beyond network metadata, not the necessary quantitative monitoring of web firewall rule activity.
D:In the cross-log correlation over retained S3 security evidence workflow, athena provides SQL-style analysis over supported S3 log formats, enabling correlation across separately collected telemetry sources; the current case needs quantitative monitoring of web firewall rule activity.
Question 368
A threat hunter needs to reconstruct rejected network connections and determine which IAM identity modified the affected subnet policy. Which TWO AWS logging sources contain those different types of evidence? Choose TWO.
- Enable the ALB access logs and complement them with application logging where full headers are required
- Run VPC Reachability Analyzer against the defined source and destination path
- Enable VPC Flow Logs and query their action fields for the affected network resources
- Alarm on Site-to-Site VPN TunnelState with an appropriate evaluation window
- Query CloudTrail for the relevant networking-configuration API action and caller identity
Explanation
Correct Answers
C:Flow logs record accept/reject decisions and packet metadata at the chosen aggregation scope; this covers the rejected flow evidence across VPC environments component of the combined scenario.
E:CloudTrail records supported network control-plane API calls and actor metadata, unlike per-packet flow logs; this covers the principal attribution for transit route modifications component of the combined scenario.
Incorrect Answers
A:ALB access logging contains structured HTTP request details, while complete custom header capture may require application-level instrumentation; that addresses web request forensic evidence beyond network metadata, rather than flow rejection records and IAM CloudTrail actor attribution.
B:Reachability Analyzer evaluates current modeled networking controls and explains why a path is possible or blocked; this belongs to auditing configuration-permitted network access paths, while the problem is flow rejection records and IAM CloudTrail actor attribution.
D:In the VPN tunnel state-based incident alarms workflow, tunnelState metrics allow automated assessment of link status; aggregation periods reduce noise from transient samples; the current case needs flow rejection records and IAM CloudTrail actor attribution.
Question 369
A compliance lead wants to confirm that packet-mirror sessions continue to target the approved sensor after network changes. What should be recorded?
- Run VPC Reachability Analyzer against the defined source and destination path
- Enable AWS Config for security-group recording and retained configuration history
- Record supported endpoint configurations with AWS Config and API changes with CloudTrail
- Use AWS Config or approved inventory automation to track Traffic Mirroring session configuration
- Mirror eligible EC2 network traffic to an approved packet inspection appliance
Explanation
Correct Answer
D:Configuration history and periodic verification detect changed mirror targets or filters even when captured traffic volume seems normal.
Incorrect Answers
A:Reachability Analyzer evaluates current modeled networking controls and explains why a path is possible or blocked; that addresses auditing configuration-permitted network access paths, rather than accountability for packet capture destination changes.
B:Config tracks supported resource states and changes over time for posture reconstruction; this belongs to long-term history of firewall rule configuration, while the problem is accountability for packet capture destination changes.
C:Resource history captures posture while control-plane event records associate modifications with specific authenticated callers; this changes auditable private endpoint policy changes, not the necessary accountability for packet capture destination changes.
E:This produces payload-level packet collection for network investigations: VPC Traffic Mirroring copies packets for authorized deep inspection, while aggregated flows omit payload contents; the stem instead tests accountability for packet capture destination changes.
Question 370
A response team wants to learn which IAM role disabled a VPC flow log shortly before an incident. Where can this action be investigated?
- Record supported endpoint configurations with AWS Config and API changes with CloudTrail
- Query CloudTrail for the relevant networking-configuration API action and caller identity
- Grant the flow-log delivery role the required CloudWatch Logs write permissions
- Examine CloudTrail events for the delete or update flow-log API action and its principal
Explanation
Correct Answer
D:Administrative deletion is a control-plane operation and appears in audit events, not inside the removed flow-log stream itself.
Incorrect Answers
A:Resource history captures posture while control-plane event records associate modifications with specific authenticated callers; that addresses auditable private endpoint policy changes, rather than investigation of log-tampering administration events.
B:CloudTrail records supported network control-plane API calls and actor metadata, unlike per-packet flow logs; this belongs to principal attribution for transit route modifications, while the problem is investigation of log-tampering administration events.
C:Delivery configuration and IAM authorization must both allow log-stream creation and event publication; this changes authorized publication of VPC flow telemetry, not the necessary investigation of log-tampering administration events.