Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 38
Question 370
During preproduction security acceptance, the regional datacenter operations reports this evidence to a SOC investigation lead: An endpoint makes hundreds of short connections to changing external peers, but a single-destination firewall rule misses the aggregate pattern. Preserve authorized business traffic during monitoring and test with harmless controlled indicators. The SOC will compare pre- and postchange event fields under the same source, sensor and collection permissions. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Replace shell interpolation with a constrained argument-safe API and enforce allowed hostname formats.
- Aggregate permitted peer-to-peer connection metadata and correlate it with authorized application inventory.
- Evaluate safety and legal constraints, then capture priority volatile information before shutdown when feasible.
- Document the vulnerability separately from any exploit evidence and examine exploitation telemetry before asserting an incident.
Explanation
Correct Answer
B:This action addresses the peer-to-peer transfer patterns issue in the regional datacenter operations, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The investigation identifies the unapproved distributed transfer pattern despite changing destinations. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different operating system command injection issue, such as: A troubleshooting web form passes unsanitized hostname text to a shell command executed as the service account. It does not address the specific failure reported by the regional datacenter operations. The decisive acceptance condition for this case is: The investigation identifies the unapproved distributed transfer pattern despite changing destinations.
C:That action belongs to a different volatile memory priority issue, such as: Investigators power off a compromised workstation before collecting volatile process, network and memory evidence that would disappear. It does not address the specific failure reported by the regional datacenter operations. The decisive acceptance condition for this case is: The investigation identifies the unapproved distributed transfer pattern despite changing destinations.
D:That action belongs to a different exploit versus exposure issue, such as: A vulnerable library is installed but no execution of an attack has been observed; management calls the CVE identifier proof of compromise. It does not address the specific failure reported by the regional datacenter operations. The decisive acceptance condition for this case is: The investigation identifies the unapproved distributed transfer pattern despite changing destinations.
Question 371
After the threat intelligence analyst at the global streaming delivery platform applies this approved action — Use state tracking for the authorized connection and evaluate packets in the context of the established five-tuple. — the original issue is revisited: Return traffic for a client-initiated TLS session arrives on an ephemeral port, and a stateless deny rule drops it as unsolicited. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A controlled session is visible in both directions or the unobserved path is explicitly documented.
- The suspicious connection is linked to a specific originating process and authenticated user.
- Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
- The risk entry states remaining likelihood and impact with the designated owner accepting or treating it.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Use state tracking for the authorized connection and evaluate packets in the context of the established five-tuple. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another asymmetric collection issue and the corrective action Map bidirectional path coverage and correlate sessions using both tap positions or equivalent reliable flow exporters. It cannot confirm the global streaming delivery platform control. Required evidence for the current investigation is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
B:This observation validates another linux process-to-network mapping issue and the corrective action Map the established socket to PID, process name, command line and user with authorized host telemetry. It cannot confirm the global streaming delivery platform control. Required evidence for the current investigation is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
D:This observation validates another residual risk acceptance issue and the corrective action Record the residual risk and obtain an authorized risk decision after verifying the compensating internal controls. It cannot confirm the global streaming delivery platform control. Required evidence for the current investigation is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
Question 372
An incident at the regional payments SOC is escalated to a endpoint security engineer after preproduction security acceptance reveals: A packaged executable contacts an unexpected domain, but the team claims to know its full capability from the filename alone. Do not treat a healthy dashboard status as proof of the required security property. The analyst can capture a synthetic event in a segregated lab but cannot access unrelated customer payloads. In this separate operating context, compare the original enforcement boundary against a secondary contractor account and a protected production service identity; verify both allow and deny decisions before drawing an identity or control-effectiveness conclusion. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry.
- Normalize source timestamps to a common reference while retaining original timezone and clock-skew context.
- Analyze the sample's permitted static strings and controlled behavioral evidence before inferring its functions.
- Classify the observed non-alert for verified benign traffic as a true negative.
Explanation
Correct Answer
C:This action addresses the reverse engineering assessment issue in the regional payments SOC, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The analyst report ties each identified capability to a specific observed artifact and labels remaining uncertainty. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different network ids coverage issue, such as: The SOC installs only endpoint malware scanners and misses lateral movement between unmonitored network appliances. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The analyst report ties each identified capability to a specific observed artifact and labels remaining uncertainty.
B:That action belongs to a different log timestamp normalization issue, such as: Windows endpoint events and Linux proxy logs use different timezone offsets, making a benign preceding action appear to follow an exploit. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The analyst report ties each identified capability to a specific observed artifact and labels remaining uncertainty.
D:That action belongs to a different true negative classification issue, such as: A known benign control session passes through detection with no alert and the analyst incorrectly reports a detection failure. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The analyst report ties each identified capability to a specific observed artifact and labels remaining uncertainty.
Question 373
After the tier-1 security analyst at the industrial safety monitoring enclave applies this approved action — Verify the release signature or approved hash and replace the modified artifact from a trusted build provenance record. — the original issue is revisited: A deployment artifact keeps its filename and remains downloadable, but an unapproved binary modification changes its trusted digest. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The case contains the anomalous transfer metrics and confirmed destination ownership before incident classification.
- The classification pairs a fired alert with confirmed positive test evidence.
- The record shows whether the endpoint isolation step succeeded, failed or was rolled back.
- The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Verify the release signature or approved hash and replace the modified artifact from a trusted build provenance record. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged. The relevant condition in this case is: After the tier-1 security analyst at the industrial safety monitoring enclave applies this approved action — Verify the release signature or approved hash and replace the modified artifact from a trusted build provenance record. — the original issue is revisited: A….
Incorrect Answers
A:This observation validates another unusual outbound volume issue and the corrective action Compare outbound byte volume, destination history and approval context; initiate scoped potential-exfiltration triage. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
B:This observation validates another true positive classification issue and the corrective action Classify a detected real-positive test condition as a true positive and record the supporting ground truth. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
C:This observation validates another soar playbook execution log issue and the corrective action Inspect SOAR job execution status and endpoint acknowledgment rather than treating initiation as completion. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
Question 374
After the vulnerability management analyst at the regulated banking VPN gateway applies this approved action — Route the classified detection to the correct SOC escalation, data owner and privacy or legal stakeholders as policy requires. — the original issue is revisited: Tier-1 analysts receive a suspected data leak but escalate only to facilities, omitting privacy and data owners. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The incident maps the suspicious flow to the correct accountable device and owner.
- The test text renders as inert characters and no script runs in the analyst browser.
- A safe distributed-load simulation is mitigated without denying representative ordinary clients.
- The case shows a timely, authorized escalation with no disclosure to unrelated departments.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Route the classified detection to the correct SOC escalation, data owner and privacy or legal stakeholders as policy requires. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another asset inventory accountability issue and the corrective action Reconcile stable asset identity, service owner, network address history and configuration records before containment. It cannot confirm the regulated banking VPN gateway control. Required evidence for the current investigation is: The case shows a timely, authorized escalation with no disclosure to unrelated departments.
B:This observation validates another cross-site scripting prevention issue and the corrective action Apply output encoding for the exact HTML context and a defense-in-depth content security policy. It cannot confirm the regulated banking VPN gateway control. Required evidence for the current investigation is: The case shows a timely, authorized escalation with no disclosure to unrelated departments.
C:This observation validates another distributed request flood issue and the corrective action Use upstream rate-limiting and DDoS analysis appropriate to distributed sources rather than a single-source-only block. It cannot confirm the regulated banking VPN gateway control. Required evidence for the current investigation is: The case shows a timely, authorized escalation with no disclosure to unrelated departments.
Question 375
The city-service billing platform detects an exception during weekly threat-hunting exercise; its network detection engineer confirms: A malware family is associated with a well-known campaign, and the analyst labels every sample from that family as the same actor. Do not infer compromise solely from a filename, service port or an absence of antivirus alerts. The event window is bounded by an original audit timestamp, a verified activity owner and the affected asset ID. The comparison host belongs to a separate managed endpoint policy group with different users and process ancestry; preserve the suspect host execution trail and avoid interpreting the second machine as proof of activity on the first. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Create scoped host egress rules for the needed package endpoint and reject unapproved destinations.
- Score remediation priority using asset value, exposure, likelihood and business impact instead of technical severity alone.
- Keep observed tool and infrastructure indicators distinct from actor attribution and require independent corroboration.
- Inspect the negotiated key-exchange mechanism and protocol transcript rather than inferring the mode from the certificate.
Explanation
Correct Answer
C:This action addresses the threat actor confidence issue in the city-service billing platform, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The case clearly records observed malware behavior and an appropriately qualified actor hypothesis. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different host firewall outbound scope issue, such as: A lab server needs to contact an approved package mirror but a blanket outbound allow also permits unknown remote-management destinations. It does not address the specific failure reported by the city-service billing platform. The decisive acceptance condition for this case is: The case clearly records observed malware behavior and an appropriately qualified actor hypothesis.
B:That action belongs to a different risk prioritization issue, such as: Two vulnerabilities have similar technical severity but only one affects an exposed payment workflow that processes regulated data. It does not address the specific failure reported by the city-service billing platform. The decisive acceptance condition for this case is: The case clearly records observed malware behavior and an appropriately qualified actor hypothesis.
D:That action belongs to a different key-exchange evidence issue, such as: A report claims that selecting a certificate filename alone proves a forward-secret key exchange occurred. It does not address the specific failure reported by the city-service billing platform. The decisive acceptance condition for this case is: The case clearly records observed malware behavior and an appropriately qualified actor hypothesis.
Question 376
After the cloud audit engineer at the telemedicine portal applies this approved action — Explain the hop-limit expiry from the IPv4 header and trace the route independently of application-level responses. — the original issue is revisited: A packet's IPv4 TTL reaches zero at a transit router and the analyst calls the resulting ICMP response proof of application rejection. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The incident record links the startup registry value to the correct local process and binary hash.
- The attempted outbound activity is recorded without reaching the real production identity service.
- The analyst maps the specific translated flow to one internal host while excluding unrelated clients.
- The test correctly attributes ICMP Time Exceeded to routing rather than the remote application's service status.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Explain the hop-limit expiry from the IPv4 header and trace the route independently of application-level responses. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another process registry linkage issue and the corrective action Treat the registry and process path as endpoint persistence artifacts and validate the spawned executable. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: The test correctly attributes ICMP Time Exceeded to routing rather than the remote application's service status.
B:This observation validates another sandbox network containment issue and the corrective action Restrict simulation egress to approved controlled sinks and preserve attempted destination metadata. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: The test correctly attributes ICMP Time Exceeded to routing rather than the remote application's service status.
C:This observation validates another nat shared address ambiguity issue and the corrective action Use timestamped NAT translation records with flow tuples to recover the original internal client identity. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: The test correctly attributes ICMP Time Exceeded to routing rather than the remote application's service status.
Question 377
A security monitoring architect at the industrial safety monitoring enclave investigates during business continuity tabletop: A caller with a convincing synthesized executive voice asks operations to disable multifactor authentication before an urgent transfer. Keep packet collection within the approved scope and do not assume encrypted payloads are readable. The team compares the result to a known-good baseline from another authorized system, and records the source clock offset. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Require callback to known identity contact and dual authorization independent of the caller's apparent voice.
- Store private-key PKCS bundles in an encrypted secret store with restricted process access and publish only approved public certificate material.
- Treat identified clinical information as protected health data and route it to compliant restricted processing.
- Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules.
Explanation
Correct Answer
A:This action addresses the voice deepfake impersonation issue in the industrial safety monitoring enclave, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The unverified request is refused and the approved decision route records the identity check. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different pkcs key storage issue, such as: A P12 identity bundle containing a private key is placed in an unrestricted web directory as if it were a public certificate. It does not address the specific failure reported by the industrial safety monitoring enclave. The decisive acceptance condition for this case is: The unverified request is refused and the approved decision route records the identity check.
C:That action belongs to a different protected health data issue, such as: A medical service sends patient treatment identifiers and visit notes through an unapproved shared logging pipeline. It does not address the specific failure reported by the industrial safety monitoring enclave. The decisive acceptance condition for this case is: The unverified request is refused and the approved decision route records the identity check.
D:That action belongs to a different statistical baseline deviation issue, such as: A SOC treats every traffic spike as malicious and ignores normal weekly backup peaks in historical measurements. It does not address the specific failure reported by the industrial safety monitoring enclave. The decisive acceptance condition for this case is: The unverified request is refused and the approved decision route records the identity check.
Question 378
After the threat intelligence analyst at the on-call cloud identity operations applies this approved action — Set privileges required based on the authority the attacker needs before exploitation rather than after compromise. — the original issue is revisited: An exploit is possible only to a fully authenticated administrator, yet the scoring worksheet says no privileges are necessary. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A compliant permitted scenario succeeds and the same role on a noncompliant device is denied.
- The process stays absent over the expected scheduling interval and logs document the original trigger.
- The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
- The alert is associated with the correct critical asset during the observed incident window.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Set privileges required based on the authority the attacker needs before exploitation rather than after compromise. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another attribute-based access issue and the corrective action Evaluate the required resource, subject, device and environmental attributes within the authorization policy. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
B:This observation validates another linux scheduled task persistence issue and the corrective action Review user and system cron jobs and relevant journals, then remove the unauthorized task under incident controls. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
D:This observation validates another critical asset address ranges issue and the corrective action Map time-aware critical subnet inventory and hostname ownership into network profile and risk prioritization. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
Question 379
After the network detection engineer at the SaaS document synchronization tenant applies this approved action — Preserve log source identity, original timestamp, collection time, timezone and normalization fields. — the original issue is revisited: Analysts delete source and collection timestamps from exported logs and cannot reconcile firewall and EDR sequences. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The packet record includes the DNS query and response while collection excludes unrelated tenants.
- The report pairs a clean control session with the correctly absent alert.
- The suspicious connection is linked to a specific originating process and authenticated user.
- Independently captured records align to one traceable incident timeline with auditable provenance.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Preserve log source identity, original timestamp, collection time, timezone and normalization fields. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another tcpdump payload capture issue and the corrective action Collect a consented limited packet capture at the eligible network interface for the specific transaction. It cannot confirm the SaaS document synchronization tenant control. Required evidence for the current investigation is: Independently captured records align to one traceable incident timeline with auditable provenance.
B:This observation validates another true negative classification issue and the corrective action Classify the observed non-alert for verified benign traffic as a true negative. It cannot confirm the SaaS document synchronization tenant control. Required evidence for the current investigation is: Independently captured records align to one traceable incident timeline with auditable provenance.
C:This observation validates another linux process-to-network mapping issue and the corrective action Map the established socket to PID, process name, command line and user with authorized host telemetry. It cannot confirm the SaaS document synchronization tenant control. Required evidence for the current investigation is: Independently captured records align to one traceable incident timeline with auditable provenance.
Question 380
After the network protocol analyst at the multi-tenant hosting provider applies this approved action — Classify the archive as protected intellectual property and use authorized restricted evidence storage. — the original issue is revisited: A source repository archive is attached to an unrestricted incident ticket for convenience although it contains unpublished proprietary algorithms. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The profile differentiates the anomalous session from the expected short-lived service calls.
- The persistence entry is identified and no longer relaunches after a controlled logon.
- The approved investigator can retrieve the file while unrelated ticket readers cannot.
- The risk entry states remaining likelihood and impact with the designated owner accepting or treating it.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Classify the archive as protected intellectual property and use authorized restricted evidence storage. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
A:This observation validates another session duration outlier issue and the corrective action Profile connection duration and timing by application identity and investigate long-lived deviations. It cannot confirm the multi-tenant hosting provider control. Required evidence for the current investigation is: The approved investigator can retrieve the file while unrelated ticket readers cannot.
B:This observation validates another windows registry persistence issue and the corrective action Inspect authorized registry run locations and startup artifacts, preserving evidence before removing unauthorized entries. It cannot confirm the multi-tenant hosting provider control. Required evidence for the current investigation is: The approved investigator can retrieve the file while unrelated ticket readers cannot.
D:This observation validates another residual risk acceptance issue and the corrective action Record the residual risk and obtain an authorized risk decision after verifying the compensating internal controls. It cannot confirm the multi-tenant hosting provider control. Required evidence for the current investigation is: The approved investigator can retrieve the file while unrelated ticket readers cannot.