Question 1090
Forensic review begins with this reported event: An IoT sensor remains reachable over a legacy Telnet service used only during installation. Which evidence-based task answers the primary uncertainty?
- Inspect listening services, authentication records and asset configuration
- Require secure-by-default device commissioning checklists
- Move maintenance to a supported secure management interface and audit access
- Disable or firewall Telnet access through approved device controls
- Review camera authentication logs, firmware and management interface exposure
- Correlate gateway crash logs, source flows and management parser errors
Explanation
Correct Answer
A:An unused plaintext management protocol increases attack surface; the review should retain source and timing information relevant to whether an unnecessary remote service exposes device control.
Incorrect Answers
B:Hardening at install time prevents dormant weaknesses; the requirement concerns whether an unnecessary remote service exposes device control, so prevention is not incident verification.
C:Recovery removes the unsafe legacy path; the goal is evidence validation for whether an unnecessary remote service exposes device control. Recovery is not factual verification.
D:Service containment limits remote command entry; immediate protection does not substantiate findings in the decision about whether an unnecessary remote service exposes device control.
E:Default credentials plus public reachability create a straightforward entry path; the activity targets whether weak device identity enabled unauthorized access; evidence validation here concerns whether an unnecessary remote service exposes device control.
F:Timing and input patterns can link traffic to service instability; this serves whether malicious management requests cause availability loss, whereas the requested result is evidence validation involving whether an unnecessary remote service exposes device control.
Question 1091
While full remediation remains pending, the commander receives this incident report: A desktop triggers a false positive on a signed internal updater after a new security policy rollout. Which first protective measure directly limits the situation without assuming cleanup is finished?
- Check signer, release manifest, deployment schedule and process actions
- Tune the specific rule and document tested expected execution
- Use a narrow temporary exception only after validating the updater
- Avoid destructive isolation while completing targeted validation
Explanation
Correct Answer
C:Broad antivirus disablement would create unnecessary exposure; the scope of this restriction follows whether the alert is a benign software change rather than indiscriminately changing unrelated assets.
Incorrect Answers
A:Authenticity and expected behavior can support a false-positive conclusion; the case needs initial containment or preservation addressing whether the alert is a benign software change; investigation alone does not control current conditions.
B:Recovery restores normal updates without sacrificing coverage; when judging whether the alert is a benign software change, corrective follow-through follows initial protection; this is instead trusted restoration.
D:Proportionate response minimizes disruption from false positives; the other incident centers on whether the service change is authorized, not this initial containment or preservation question about whether the alert is a benign software change.
Question 1092
The recovery owner is reviewing the underlying failure in this report: A tablet fleet has no procedure to issue supervised remote locks after devices are reported stolen. What action most directly repairs the affected access, evidence or system state?
- Issue an authorized lock and revoke exposed account sessions
- Record device loss, assess local encryption and rotate relevant credentials
- Enforce managed enrollment, encryption and loss-response testing
- Test platform-specific isolation and acquisition on representative Macs
Explanation
Correct Answer
B:Recovery addresses information risk beyond physical hardware; the resulting state needs verification against the original concern: whether mobile device management can contain loss.
Incorrect Answers
A:Identity revocation is important even if the offline device cannot receive a command; the case needs trusted restoration addressing whether mobile device management can contain loss; temporary protection does not complete correction.
C:Prepared controls reduce loss impact; for whether mobile device management can contain loss, future hardening is not current-state recovery; trusted restoration remains necessary.
D:Preparation should verify tool behavior on each supported OS; the relevant condition for that step is whether endpoint playbooks cover deployed operating systems, which is not shown for whether mobile device management can contain loss.
Question 1093
A responder is tasked with limiting immediate impact after this report: An organization treats a mobile device alert as irrelevant because all central servers are fully patched. Which immediate safeguard protects the case while later remediation is planned?
- Establish a named terminal owner and restrict suspect transaction paths
- Revalidate device trust and account sessions before restoring application access
- Restrict the suspect device's access to corporate resources
- Map device identity, installed apps and data access from the alerted mobile client
Explanation
Correct Answer
C:Endpoint containment stops further use of exposed sessions; this reduces current exposure associated with whether endpoints can bypass server-centric protection and permits later corrective work.
Incorrect Answers
A:Controlled response limits possible fraud without improvising against payment infrastructure; it is meant to address whether endpoint scope includes specialized business devices, not initial containment or preservation for whether endpoints can bypass server-centric protection.
B:Recovery must include client integrity and identity state; corrective follow-through follows initial protection in the decision about whether endpoints can bypass server-centric protection.
D:Compromised endpoints can expose cloud sessions and enterprise data without compromising servers; when judging whether endpoints can bypass server-centric protection, investigation alone does not control current conditions; this is instead evidence validation.
Question 1094
A containment decision is required for this incident: Endpoint event logs are overwritten after a few hours because an application generates noisy debug events. What action constrains the incident at the affected point of control?
- Apply an approved network-level quarantine for uncovered endpoints
- Include event-retention performance tests in endpoint baselines
- Tune debug verbosity and verify investigation events remain available
- Prioritize export of security-critical events to central storage
- Measure event volume, retention settings and off-host forwarding latency
Explanation
Correct Answer
D:Protected off-device logs survive local overwrite; this is a first-response safeguard for whether security telemetry capacity is adequate, not a substitute for full root-cause analysis.
Incorrect Answers
A:Alternative containment should not depend on a nonexistent host action; this serves whether endpoint playbooks cover deployed operating systems, whereas the requested result is initial containment or preservation involving whether security telemetry capacity is adequate.
B:Capacity planning improves forensic readiness; the case needs initial containment or preservation addressing whether security telemetry capacity is adequate; prevention cannot replace immediate action.
C:A balanced configuration preserves high-value evidence; when judging whether security telemetry capacity is adequate, corrective follow-through follows initial protection; this is instead trusted restoration.
E:Noisy logs can crowd out security events before collection; the requirement concerns whether security telemetry capacity is adequate, so investigation alone does not control current conditions.
Question 1095
A technical closure review begins after this incident: A network camera still uses a default administrator password and exposes its control interface to the internet. After the immediate situation is stabilized, what addresses the enabling failure?
- Move maintenance to a supported secure management interface and audit access
- Block external management access and change the compromised password
- Enforce unique device credentials and isolated management networks
- Upgrade supported firmware and validate camera configuration after compromise review
Explanation
Correct Answer
D:Recovery must address both access and possible persistent settings; the recovery decision is tied to whether weak device identity enabled unauthorized access, not merely to reduced alert volume.
Incorrect Answers
A:Recovery removes the unsafe legacy path; it is meant to address whether an unnecessary remote service exposes device control, not trusted restoration for whether weak device identity enabled unauthorized access.
B:Immediate restrictions limit remote control; the case needs trusted restoration addressing whether weak device identity enabled unauthorized access; temporary protection does not complete correction.
C:IoT devices should not depend on factory defaults; when judging whether weak device identity enabled unauthorized access, future hardening is not current-state recovery; this is instead recurrence prevention.
Question 1096
Before making any disruptive change, an investigator is handed these observations: A managed Android phone is rooted, causing device-attestation checks to fail during corporate access. Which source best supports the incident finding before responders modify the environment?
- Require device integrity attestation for sensitive mobile access
- Review device integrity attestation, MDM compliance and enrollment state
- Inspect debugging state, trusted host authorizations and USB connection history
- Block access from the noncompliant device through conditional policy
Explanation
Correct Answer
B:Rooting can change the trust assumptions behind managed endpoint protections; for this investigation, the relevant uncertainty is whether platform integrity meets access policy, so independent confirmation matters.
Incorrect Answers
A:Conditional access limits compromised or unmanaged platforms; the case needs evidence validation addressing whether platform integrity meets access policy; prevention is not incident verification.
C:An authorized debug bridge can expose device data or command control; that method could help with whether debugging exposes the managed device; the evidence validation decision here involves whether platform integrity meets access policy.
D:Identity gating reduces risk without treating an attestation result as proof of a specific exploit; the requirement concerns whether platform integrity meets access policy, so immediate protection does not substantiate findings.
Question 1097
The incident owner requests a defensible factual determination after hearing: An industrial workstation runs unsupported operating-system software that cannot be patched during continuous production. What fact-checking activity tests the observed failure most directly?
- Constrain access to approved protocols and maintenance systems
- Review vendor session recording, gateway logs and maintenance authorization
- Schedule vendor-supported upgrades and validate equipment behavior in staging
- Review vendor patch constraints, network exposure and available application allowlisting
- Use asset inventory, virtual patching and controlled maintenance windows
Explanation
Correct Answer
D:Risk mitigation may require isolation when ordinary patching is impractical; it makes the determination of whether compensating controls can reduce endpoint risk defensible and reviewable by the incident owner.
Incorrect Answers
A:Segmentation reduces exposure without untested production changes; immediate protection does not substantiate findings in the decision about whether compensating controls can reduce endpoint risk.
B:A valid credential does not prove the connection was approved; the other incident centers on whether vendor remote access was misused, not this evidence validation question about whether compensating controls can reduce endpoint risk.
C:Safe recovery plans respect process dependencies; when judging whether compensating controls can reduce endpoint risk, recovery is not factual verification; this is instead trusted restoration.
E:Compensating controls reduce risk until supported updates are possible; the requirement concerns whether compensating controls can reduce endpoint risk, so prevention is not incident verification.
Question 1098
An improvement plan must address recurrence after this case: A mobile phishing page successfully captures a corporate sign-in and the attacker maintains an active cloud session. What should the owner add to the normal control review to reduce recurrence?
- Reset credentials and examine affected SaaS application grants
- Use phishing-resistant MFA and mobile threat protection
- Enforce screen lock, encryption and rapid lost-device reporting
- Correlate mobile browser events with identity provider sign-in and token activity
Explanation
Correct Answer
B:Origin-bound authentication reduces mobile phishing impact; it makes the lesson about whether mobile-origin credentials were used elsewhere part of normal operations.
Incorrect Answers
A:The risk extends to applications accessible through the stolen session; case recovery is not future-risk control in the decision about whether mobile-origin credentials were used elsewhere.
C:Baseline controls reduce physical-loss exposure; that method could help with whether a lost mobile device can access enterprise mail; the recurrence prevention decision here involves whether mobile-origin credentials were used elsewhere.
D:The compromised credential may have been replayed from a different device; for whether mobile-origin credentials were used elsewhere, an investigation is not recurrence prevention; recurrence prevention remains necessary.
Question 1099
While full remediation remains pending, the commander receives this incident report: A mobile app installed from an unofficial store requests accessibility permissions and begins reading banking notifications. Which first protective measure directly limits the situation without assuming cleanup is finished?
- Disable the suspicious app and restrict sensitive mobile sessions
- Inspect app source, granted accessibility permissions and notification access
- Control app installation sources and monitor high-risk permission grants
- Remove the app through managed procedures and assess exposed accounts
- Remove the unauthorized profile under managed procedures and revoke exposed sessions
- Disable debugging and sever trust with the unapproved host
Explanation
Correct Answer
A:Containment prevents continued observation of protected notifications; the action limits the impact connected to whether abuse of accessibility services is occurring without assuming the underlying flaw is already gone.
Incorrect Answers
B:Excessive privileges can enable sensitive content capture without conventional malware files; when judging whether abuse of accessibility services is occurring, investigation alone does not control current conditions; this is instead evidence validation.
C:Permission governance reduces mobile spyware exposure; for whether abuse of accessibility services is occurring, prevention cannot replace immediate action; initial containment or preservation remains necessary.
D:Recovery includes the information the app may have observed; the requirement concerns whether abuse of accessibility services is occurring, so corrective follow-through follows initial protection.
E:Containment stops routing through the suspect configuration; this serves whether configuration profiles redirect or intercept traffic, whereas the requested result is initial containment or preservation involving whether abuse of accessibility services is occurring.
F:Containment closes a physical access channel; that method could help with whether debugging exposes the managed device; the initial containment or preservation decision here involves whether abuse of accessibility services is occurring.
Question 1100
The affected workflow needs an integrity and access check following this event: A SCADA historian stops receiving data after a new firewall block was installed during a suspected intrusion. What case-specific cleanup or recovery step establishes a trusted state?
- Validate historian ingestion and independent process alarm visibility
- Restore approved setpoints and verify process stability with authorized operators
- Document essential OT data flows and rehearse containment ACLs
- Adjust the rule with OT owner approval to preserve required read-only flows
Explanation
Correct Answer
A:Recovery should confirm trustworthy monitoring has resumed; the resulting state needs verification against the original concern: whether containment interrupted process monitoring.
Incorrect Answers
B:Recovery needs physical-state validation beyond software scans; the activity targets whether physical process safety is at risk; trusted restoration here concerns whether containment interrupted process monitoring.
C:Prevalidated rules reduce accidental outages; the case needs trusted restoration addressing whether containment interrupted process monitoring; future hardening is not current-state recovery.
D:Narrow enforcement can limit malicious traffic without blinding operators; when judging whether containment interrupted process monitoring, temporary protection does not complete correction; this is instead initial containment or preservation.