Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 2
Question 10
During privilege recertification, the municipal cyber defense office reports this evidence to a incident commander: A detonation report shows an executable making TLS connections to an unfamiliar domain after launch but the analyst claims the domain was contacted before execution. Retain endpoint process, user and timestamp context while limiting access to sensitive records. 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?
- Review user and system cron jobs and relevant journals, then remove the unauthorized task under incident controls.
- Scope the detection rule to observed anomalous query behavior rather than all DNS usage, retaining targeted alerts.
- Use authorized write-blocked acquisition and preserve the source medium in secure custody.
- Reconcile sandbox execution timestamps, DNS lookups and network captures before ordering the observed behaviors.
Explanation
Correct Answer
D:This action addresses the sandbox network indicators issue in the municipal cyber defense office, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The report shows a time-ordered process and network timeline without unobserved steps. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different linux scheduled task persistence issue, such as: A temporary executable reappears every five minutes via a newly installed cron entry despite removal of the original process. It does not address the specific failure reported by the municipal cyber defense office. The decisive acceptance condition for this case is: The report shows a time-ordered process and network timeline without unobserved steps.
B:That action belongs to a different rule tuning false positives issue, such as: An IDS rule alerts on every outbound DNS query from a sanctioned resolver and overwhelms investigation with expected traffic. It does not address the specific failure reported by the municipal cyber defense office. The decisive acceptance condition for this case is: The report shows a time-ordered process and network timeline without unobserved steps.
C:That action belongs to a different write-blocked preservation issue, such as: A forensic examiner mounts the only evidence drive read-write, causing automated filesystem updates before the initial image is secured. It does not address the specific failure reported by the municipal cyber defense office. The decisive acceptance condition for this case is: The report shows a time-ordered process and network timeline without unobserved steps.
Question 11
After the SOC investigation lead at the enterprise mail filtering gateway applies this approved action — Parse URI scheme, host, path and parameters as separate attributes when reconstructing the triggering request. — the original issue is revisited: A web alert for /admin/export is grouped with /admin/login merely because both share the same hostname. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The known benign backup no longer creates a critical incident while a controlled malicious-behavior test still alerts.
- The unsafe pod configuration is rejected while a minimally privileged workload starts normally.
- The correct sensitive export request is isolated from routine login requests.
- The test client negotiates an approved suite and a weak-suite-only client cannot complete negotiation.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Parse URI scheme, host, path and parameters as separate attributes when reconstructing the triggering request. 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 false positive classification issue and the corrective action Classify the alarm as a false positive and tune the rule without disabling appropriate ransomware monitoring. It cannot confirm the enterprise mail filtering gateway control. Required evidence for the current investigation is: The correct sensitive export request is isolated from routine login requests.
B:This observation validates another container security context issue and the corrective action Enforce runtime container least privilege and admission controls instead of treating image scanning as complete runtime security. It cannot confirm the enterprise mail filtering gateway control. Required evidence for the current investigation is: The correct sensitive export request is isolated from routine login requests.
D:This observation validates another cipher suite selection issue and the corrective action Restrict negotiated TLS cipher suites to the current approved authenticated encryption and key-exchange profile. It cannot confirm the enterprise mail filtering gateway control. Required evidence for the current investigation is: The correct sensitive export request is isolated from routine login requests.
Question 12
After the forensic evidence custodian at the third-party partner exchange applies this approved action — Map time-aware critical subnet inventory and hostname ownership into network profile and risk prioritization. — the original issue is revisited: An incident alert refers to an address shared by development and production over time, and triage assumes all addresses have equal business impact. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The alert is associated with the correct critical asset during the observed incident window.
- The response matrix names accountable owners and contact paths for each critical service.
- The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
- Only events whose target field begins with the expected failure token match.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Map time-aware critical subnet inventory and hostname ownership into network profile and risk prioritization. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
B:This observation validates another preparation stakeholder ownership issue and the corrective action Include asset owners, IT operations, legal and security responders in preparation responsibilities and escalation mapping. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The alert is associated with the correct critical asset during the observed incident window.
C:This observation validates another statistical baseline deviation issue and the corrective action Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The alert is associated with the correct critical asset during the observed incident window.
D:This observation validates another regex anchors issue and the corrective action Anchor the expression to the beginning of the relevant field and test against normal and failing events. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The alert is associated with the correct critical asset during the observed incident window.
Question 13
An incident at the merchant checkout web service is escalated to a SOC automation specialist after endpoint isolation rehearsal reveals: An endpoint alert shows powershell.exe but not the argument string, and the SOC cannot tell whether the command was inventory or suspicious. Keep endpoint security enforcement active while collecting a reversible test observation. A peer reviewer requires the final verdict to cite a direct observation rather than a vendor product label. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Retrieve permitted full command-line and parent-process telemetry with executing identity for that event.
- Record each evidence transfer, custodian, time, storage condition and integrity hash in the evidence log.
- Escape the literal period in the hostname regex and verify word or field boundaries.
- Scope the detection rule to observed anomalous query behavior rather than all DNS usage, retaining targeted alerts.
Explanation
Correct Answer
A:This action addresses the process command line evidence issue in the merchant checkout web service, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The analyst separates the approved inventory command from suspicious invocation by its actual arguments. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different chain-of-custody handling issue, such as: A forensic image is passed among analysts with no record of who accessed it, where it was held or whether it changed. It does not address the specific failure reported by the merchant checkout web service. The decisive acceptance condition for this case is: The analyst separates the approved inventory command from suspicious invocation by its actual arguments.
C:That action belongs to a different regex escaped dot issue, such as: A URL filter pattern uses an unescaped dot between hostname labels and accidentally matches unrelated characters. It does not address the specific failure reported by the merchant checkout web service. The decisive acceptance condition for this case is: The analyst separates the approved inventory command from suspicious invocation by its actual arguments.
D:That action belongs to a different rule tuning false positives issue, such as: An IDS rule alerts on every outbound DNS query from a sanctioned resolver and overwhelms investigation with expected traffic. It does not address the specific failure reported by the merchant checkout web service. The decisive acceptance condition for this case is: The analyst separates the approved inventory command from suspicious invocation by its actual arguments.
Question 14
An incident at the merchant checkout web service is escalated to a forensic evidence custodian after forensic evidence quality assessment reveals: A security alert triggers on raw daily request volume but misses a sudden five-minute burst against one API credential. Do not treat a healthy dashboard status as proof of the required security property. Operations needs evidence that the proposed defense remains effective after a routine service restart. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules.
- Use a scoped rolling-time-window baseline with appropriate rate and deviation thresholds for the API identity.
- Reconcile sandbox execution timestamps, DNS lookups and network captures before ordering the observed behaviors.
- Map time-aware critical subnet inventory and hostname ownership into network profile and risk prioritization.
Explanation
Correct Answer
B:This action addresses the sliding-window anomalies issue in the merchant checkout web service, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The simulated short burst triggers while normal daily traffic does not create the same alert. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A: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 merchant checkout web service. The decisive acceptance condition for this case is: The simulated short burst triggers while normal daily traffic does not create the same alert.
C:That action belongs to a different sandbox network indicators issue, such as: A detonation report shows an executable making TLS connections to an unfamiliar domain after launch but the analyst claims the domain was contacted before execution. It does not address the specific failure reported by the merchant checkout web service. The decisive acceptance condition for this case is: The simulated short burst triggers while normal daily traffic does not create the same alert.
D:That action belongs to a different critical asset address ranges issue, such as: An incident alert refers to an address shared by development and production over time, and triage assumes all addresses have equal business impact. It does not address the specific failure reported by the merchant checkout web service. The decisive acceptance condition for this case is: The simulated short burst triggers while normal daily traffic does not create the same alert.
Question 15
After the incident commander at the on-call cloud identity operations applies this approved action — Correlate the flow tuple and timestamp with NAT translation tables to identify the originating private host. — the original issue is revisited: A firewall log shows a public NAT source that represents many internal clients, but the analyst blocks all users as one compromised host. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The detonation report captures attempted execution and network behaviors without touching the production endpoint.
- The decoded header chain reveals the actual supported transport without false UDP classification.
- Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
- The reconstruction identifies the process initiating the API calls with supporting host evidence.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Correlate the flow tuple and timestamp with NAT translation tables to identify the originating private host. 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 malware analysis safety issue and the corrective action Execute the sample only in an isolated authorized malware detonation environment with protected collection of observable artifacts. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
B:This observation validates another ipv6 next-header handling issue and the corrective action Interpret IPv6 next-header chaining and extension fields before identifying the transport protocol. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
D:This observation validates another system api call interpretation issue and the corrective action Correlate host process API telemetry to the originating executable and identity while keeping network records separate. It cannot confirm the on-call cloud identity operations control. Required evidence for the current investigation is: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
Question 16
After the network protocol analyst at the telecom customer identity platform applies this approved action — Review application-aware next-generation firewall classification in addition to port and transport metadata. — the original issue is revisited: A rule allows all TCP port 443 traffic and the SOC assumes every flow is ordinary web browsing even when an unauthorized app tunnels over HTTPS. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A safe test distinguishes the expected web app from the unauthorized application on the same destination port.
- The connection metadata shows the expected supported ephemeral key exchange and certificate authentication.
- The report correctly identifies the datagram conversation without inventing a three-way handshake.
- The risk register differentiates the vulnerable asset from the external actor and associates a plausible exploitation path.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Review application-aware next-generation firewall classification in addition to port and transport metadata. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
B:This observation validates another key-exchange evidence issue and the corrective action Inspect the negotiated key-exchange mechanism and protocol transcript rather than inferring the mode from the certificate. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A safe test distinguishes the expected web app from the unauthorized application on the same destination port.
C:This observation validates another protocol inference from headers issue and the corrective action Read the IP protocol and transport headers before labeling a conversation as UDP or TCP. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A safe test distinguishes the expected web app from the unauthorized application on the same destination port.
D:This observation validates another threat versus vulnerability issue and the corrective action Record the exposed software weakness as the vulnerability and the capable adversary or hazard as the threat. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A safe test distinguishes the expected web app from the unauthorized application on the same destination port.
Question 17
After the SOC investigation lead at the remote industrial maintenance site applies this approved action — Validate enrollment destination through managed device workflows and treat the unsolicited code as an untrusted link. — the original issue is revisited: A printed QR code outside a secure office sends staff to a fake device enrollment page while the domain differs from the company portal. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The safe test phishing URL is denied and the web filter log identifies the source user or workstation.
- The test device remains unenrolled in the malicious site and a report preserves the code destination.
- The combined profile exposes the unusual cumulative transfer and links it to the originating process.
- A controlled reboot shows no malicious startup artifacts and the endpoint satisfies integrity checks.
Explanation
Correct Answer
B:This outcome is the direct verification of the approved action: Validate enrollment destination through managed device workflows and treat the unsolicited code as an untrusted link. 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 web content filter context issue and the corrective action Use permitted web-category and URL filtering event data to identify blocked malicious destinations. It cannot confirm the remote industrial maintenance site control. Required evidence for the current investigation is: The test device remains unenrolled in the malicious site and a report preserves the code destination.
C:This observation validates another encoded upload behavior issue and the corrective action Aggregate transfers by client and destination over time and correlate process ancestry with authorized data-export policy. It cannot confirm the remote industrial maintenance site control. Required evidence for the current investigation is: The test device remains unenrolled in the malicious site and a report preserves the code destination.
D:This observation validates another eradication before recovery issue and the corrective action Remove unauthorized persistence and validate clean recovery media before rejoining the endpoint to the approved network. It cannot confirm the remote industrial maintenance site control. Required evidence for the current investigation is: The test device remains unenrolled in the malicious site and a report preserves the code destination.
Question 18
After the network detection engineer at the industrial safety monitoring enclave applies this approved action — Validate the affected component and actual exposure path before assigning its risk priority. — the original issue is revisited: An internal library has a critical CVE but a SOC dashboard describes it as reachable directly from outside despite an enforced isolated network. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A compliant TLS client connects while an obsolete-version-only test handshake is rejected.
- Every custody handoff is reconstructable and the image digest stays consistent.
- The review documents the vulnerable dependency and its verified network boundary independently.
- The scoring record identifies network reachability without falsely requiring local or physical presence.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Validate the affected component and actual exposure path before assigning its risk priority. 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 tls version negotiation issue and the corrective action Enforce the supported minimum TLS protocol version with a deliberate compatibility and rollback test. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The review documents the vulnerable dependency and its verified network boundary independently.
B:This observation validates another chain-of-custody handling issue and the corrective action Record each evidence transfer, custodian, time, storage condition and integrity hash in the evidence log. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The review documents the vulnerable dependency and its verified network boundary independently.
D:This observation validates another cvss attack vector issue and the corrective action Select the attack-vector metric that matches reachable remote network exploitation, with evidence from the exposed endpoint. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The review documents the vulnerable dependency and its verified network boundary independently.
Question 19
During endpoint isolation rehearsal, the healthcare privacy monitoring desk reports this evidence to a SOC automation specialist: A deployment artifact keeps its filename and remains downloadable, but an unapproved binary modification changes its trusted digest. The reviewer must distinguish the observable weakness from actor identity and unsupported assumptions. Two log sources use different time representations; the reviewer must preserve provenance when correlating them. 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?
- Select the attack-vector metric that matches reachable remote network exploitation, with evidence from the exposed endpoint.
- Correlate endpoint behavior rules for unusual parent-child execution and persistence changes independent of file hash reputation.
- Correlate UDP application transaction identifiers, ports and addresses rather than expecting TCP handshake state.
- Verify the release signature or approved hash and replace the modified artifact from a trusted build provenance record.
Explanation
Correct Answer
D:This action addresses the integrity of update files issue in the healthcare privacy monitoring desk, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different cvss attack vector issue, such as: An analyst scores a web-facing unauthenticated vulnerability as requiring physical contact despite exploitation over a routable interface. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
B:That action belongs to a different behavioral edr alert issue, such as: An unsigned process launches a script interpreter and alters startup persistence keys, but its hash is not in a known blacklist. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
C:That action belongs to a different udp transaction pairing issue, such as: A DNS request and reply use UDP with matching transaction ID, and the team looks for TCP ACK flags to prove the reply exists. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The artifact matches the signed baseline and an intentionally modified sample fails the integrity check.
Question 20
After the forensic evidence custodian at the customer support ticket service applies this approved action — Apply the approved owner-managed discretionary access control model for the nonclassified collaboration folder. — the original issue is revisited: A file owner is permitted to share their research folder and a central admin assumes this is a mandatory classification label. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- An authorized file owner can grant a named collaborator access without changing a centrally enforced security label.
- The report identifies connection metadata and labels payload contents unknown without validated endpoint evidence.
- The approved investigator can retrieve the file while unrelated ticket readers cannot.
- Each historical connection is mapped to the address actually resolved during that time window.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Apply the approved owner-managed discretionary access control model for the nonclassified collaboration folder. It proves the corrective or detection objective through observed evidence, not simply because a rule was saved or an alarm was acknowledged.
Incorrect Answers
B:This observation validates another encrypted payload blind spot issue and the corrective action Correlate authorized endpoint and server telemetry with TLS metadata rather than claiming encrypted payload visibility. It cannot confirm the customer support ticket service control. Required evidence for the current investigation is: An authorized file owner can grant a named collaborator access without changing a centrally enforced security label.
C:This observation validates another intellectual property leakage issue and the corrective action Classify the archive as protected intellectual property and use authorized restricted evidence storage. It cannot confirm the customer support ticket service control. Required evidence for the current investigation is: An authorized file owner can grant a named collaborator access without changing a centrally enforced security label.
D:This observation validates another hostname and ip pivoting issue and the corrective action Correlate DNS response history, timestamps, TTL and network flows rather than using a current lookup retroactively. It cannot confirm the customer support ticket service control. Required evidence for the current investigation is: An authorized file owner can grant a named collaborator access without changing a centrally enforced security label.