Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 8
Question 70
After the host incident responder at the hospital network incident team applies this approved action — Remove unauthorized persistence and validate clean recovery media before rejoining the endpoint to the approved network. — the original issue is revisited: A quarantined endpoint is restored from backup while a persistent malicious scheduled task remains on the same image. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- Postchange comparison matches the approved rules and an unauthorized deviation produces an alert.
- Each historical connection is mapped to the address actually resolved during that time window.
- A controlled reboot shows no malicious startup artifacts and the endpoint satisfies integrity checks.
- An authorized file owner can grant a named collaborator access without changing a centrally enforced security label.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Remove unauthorized persistence and validate clean recovery media before rejoining the endpoint to the approved network. 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 configuration baseline drift issue and the corrective action Detect and document configuration drift and apply the authorized baseline correction with tested rollback. It cannot confirm the hospital network incident team control. Required evidence for the current investigation is: A controlled reboot shows no malicious startup artifacts and the endpoint satisfies integrity checks.
B: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 hospital network incident team control. Required evidence for the current investigation is: A controlled reboot shows no malicious startup artifacts and the endpoint satisfies integrity checks.
D:This observation validates another discretionary ownership issue and the corrective action Apply the approved owner-managed discretionary access control model for the nonclassified collaboration folder. It cannot confirm the hospital network incident team control. Required evidence for the current investigation is: A controlled reboot shows no malicious startup artifacts and the endpoint satisfies integrity checks.
Question 71
After the SOC investigation lead at the branch DNS resolver network applies this approved action — Deploy the correct identity-matching leaf and intermediate CA chain and validate trust path and hostname. — the original issue is revisited: A browser displays a certificate warning because a backend serves a self-signed leaf where clients expect a trusted CA chain. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The inventory includes the reachable staging service and its owner without inventing a confirmed vulnerability.
- The analyst sees required dashboards but a simulated firewall-policy modification is refused.
- The incident timeline retains separate host identities and maps each API call to its actual source.
- A verified client completes TLS without trust warnings while a fake self-signed endpoint remains untrusted.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Deploy the correct identity-matching leaf and intermediate CA chain and validate trust path and hostname. 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 public attack surface inventory issue and the corrective action Inventory exposed addresses, services and identities as attack surfaces separately from assessed vulnerabilities. It cannot confirm the branch DNS resolver network control. Required evidence for the current investigation is: A verified client completes TLS without trust warnings while a fake self-signed endpoint remains untrusted.
B:This observation validates another role-based soc privileges issue and the corrective action Assign a read-only SOC analyst role and keep incident-response configuration changes under separately approved administrative roles. It cannot confirm the branch DNS resolver network control. Required evidence for the current investigation is: A verified client completes TLS without trust warnings while a fake self-signed endpoint remains untrusted.
C:This observation validates another system event provenance issue and the corrective action Correlate stable host identity and event source metadata before joining cross-system event records. It cannot confirm the branch DNS resolver network control. Required evidence for the current investigation is: A verified client completes TLS without trust warnings while a fake self-signed endpoint remains untrusted.
Question 72
A tier-1 security analyst at the software deployment pipeline investigates during weekly threat-hunting exercise: A suspicious source IP belongs to a hosting provider, yet a report attributes the campaign to a named group solely by that address. Differentiate the security objective from the tool used to enforce it, and retain authorized user access. The change team will retest the specific baseline failure without broad production scanning or unsafe payloads. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Use approved agent-based runtime telemetry for process-level evidence and retain agentless assessment for scheduled configuration coverage.
- Evaluate actual asset criticality, confirmed impact and exposure instead of using signature severity as the incident priority alone.
- Include asset owners, IT operations, legal and security responders in preparation responsibilities and escalation mapping.
- Separate observable infrastructure indicators from actor-attribution confidence and require corroborating tactics and independent evidence.
Explanation
Correct Answer
D:This action addresses the threat actor attribution caution issue in the software deployment pipeline, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The incident record distinguishes confirmed network facts from low-confidence attribution without naming an unsupported actor. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different agentless versus agent-based visibility issue, such as: The security team scans offline VM snapshots and claims it has continuous visibility into runtime memory and new child processes. It does not address the specific failure reported by the software deployment pipeline. The decisive acceptance condition for this case is: The incident record distinguishes confirmed network facts from low-confidence attribution without naming an unsupported actor.
B:That action belongs to a different impact versus severity issue, such as: A medium-severity IDS alert targets an isolated lab VM, while a lower-confidence alert concerns active production credential misuse. It does not address the specific failure reported by the software deployment pipeline. The decisive acceptance condition for this case is: The incident record distinguishes confirmed network facts from low-confidence attribution without naming an unsupported actor.
C:That action belongs to a different preparation stakeholder ownership issue, such as: A SOC builds detections without engaging IT service owners who know which systems are critical or where telemetry is stored. It does not address the specific failure reported by the software deployment pipeline. The decisive acceptance condition for this case is: The incident record distinguishes confirmed network facts from low-confidence attribution without naming an unsupported actor.
Question 73
After the SOC investigation lead at the industrial safety monitoring enclave applies this approved action — Document the vulnerability separately from any exploit evidence and examine exploitation telemetry before asserting an incident. — the original issue is revisited: A vulnerable library is installed but no execution of an attack has been observed; management calls the CVE identifier proof of compromise. 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 dashboard shows separate verified threat-control and business-restoration timestamps.
- The incident summary clearly labels observed exploit activity versus mere exposure and supplies supporting logs.
- The test text renders as inert characters and no script runs in the analyst browser.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Document the vulnerability separately from any exploit evidence and examine exploitation telemetry before asserting an incident. 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 industrial safety monitoring enclave control. Required evidence for the current investigation is: The incident summary clearly labels observed exploit activity versus mere exposure and supplies supporting logs.
B:This observation validates another mean time to control issue and the corrective action Track the verified control of the threat and restoration outcomes as distinct event milestones. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: The incident summary clearly labels observed exploit activity versus mere exposure and supplies supporting logs.
D: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 industrial safety monitoring enclave control. Required evidence for the current investigation is: The incident summary clearly labels observed exploit activity versus mere exposure and supplies supporting logs.
Question 74
The university campus defense center detects an exception during monitoring baseline revision; its tier-1 security analyst confirms: A SOC treats every traffic spike as malicious and ignores normal weekly backup peaks in historical measurements. Keep least privilege and approval boundaries intact while testing the security decision. A documented service owner has requested that the solution preserve active approved sessions throughout verification. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Correlate source IP, source port, destination IP, destination port and transport protocol to isolate the exact flow.
- Define practical exercise cadence, acceptance checks and plan improvement based on measured test results.
- Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules.
- Correlate stable host identity and event source metadata before joining cross-system event records.
Explanation
Correct Answer
C:This action addresses the statistical baseline deviation issue in the university campus defense center, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different five-tuple identity issue, such as: A SOC groups two flows together using destination port alone although source and destination addresses and protocols differ. It does not address the specific failure reported by the university campus defense center. The decisive acceptance condition for this case is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
B:That action belongs to a different playbook test criteria issue, such as: A response plan is considered complete after approval but no one has rehearsed evidence capture or system restoration. It does not address the specific failure reported by the university campus defense center. The decisive acceptance condition for this case is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
D:That action belongs to a different system event provenance issue, such as: A threat report combines API call events from two similarly named hosts and attributes them to one machine without checking unique device IDs. It does not address the specific failure reported by the university campus defense center. The decisive acceptance condition for this case is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
Question 75
After the tier-1 security analyst at the telecom customer identity platform applies this approved action — Validate bounds handling and deploy a tested supported patch for the affected parser, retaining crash evidence. — the original issue is revisited: A legacy listener crashes when a malformed-length test field is received, with memory fault telemetry and an application dump. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A harmless oversized field is rejected and the service no longer crashes in controlled regression testing.
- The incident record identifies the exact failing HTTP operation without guessing from port 443.
- The report reflects the actual analyst response interval and separates it from machine alert latency.
- The paired request and response are identified correctly without fabricated TCP flags.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Validate bounds handling and deploy a tested supported patch for the affected parser, retaining crash evidence. 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 transaction data for http issue and the corrective action Use permitted reverse proxy or application transaction logs to correlate URI, response status and request ID. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A harmless oversized field is rejected and the service no longer crashes in controlled regression testing.
C:This observation validates another mean time to respond issue and the corrective action Measure the response interval using the documented alert and first meaningful response action timestamps. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A harmless oversized field is rejected and the service no longer crashes in controlled regression testing.
D:This observation validates another udp transaction pairing issue and the corrective action Correlate UDP application transaction identifiers, ports and addresses rather than expecting TCP handshake state. It cannot confirm the telecom customer identity platform control. Required evidence for the current investigation is: A harmless oversized field is rejected and the service no longer crashes in controlled regression testing.
Question 76
An incident at the container runtime security platform is escalated to a SOC investigation lead after endpoint isolation rehearsal reveals: A medium-severity IDS alert targets an isolated lab VM, while a lower-confidence alert concerns active production credential misuse. Do not reclassify a detection as malicious solely from a signature identifier. Investigators must record which observation is directly measured and which conclusion remains only an inference. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Parse URI scheme, host, path and parameters as separate attributes when reconstructing the triggering request.
- Assign named stakeholders and measurable follow-up evidence to lessons-learned improvements.
- Evaluate actual asset criticality, confirmed impact and exposure instead of using signature severity as the incident priority alone.
- Store private-key PKCS bundles in an encrypted secret store with restricted process access and publish only approved public certificate material.
Explanation
Correct Answer
C:This action addresses the impact versus severity issue in the container runtime security platform, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The triage queue reflects observed business impact and documents confidence in each verdict. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different uri path differences issue, such as: A web alert for /admin/export is grouped with /admin/login merely because both share the same hostname. It does not address the specific failure reported by the container runtime security platform. The decisive acceptance condition for this case is: The triage queue reflects observed business impact and documents confidence in each verdict.
B:That action belongs to a different lessons learned accountability issue, such as: A postincident improvement list includes many actions but no owner, due date or control effectiveness metric. It does not address the specific failure reported by the container runtime security platform. The decisive acceptance condition for this case is: The triage queue reflects observed business impact and documents confidence in each verdict.
D: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 container runtime security platform. The decisive acceptance condition for this case is: The triage queue reflects observed business impact and documents confidence in each verdict.
Question 77
After the forensic evidence custodian at the third-party partner exchange applies this approved action — Measure the response interval using the documented alert and first meaningful response action timestamps. — the original issue is revisited: An incident dashboard reports a one-minute response based on alert creation, although the first analyst action occurred forty minutes later. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A controlled tabletop and technical drill produces documented gaps, owners and retest dates.
- The report reflects the actual analyst response interval and separates it from machine alert latency.
- The analysis keeps base severity comparable while environmental priority distinguishes the critical hospital service.
- Return traffic for the approved session passes while unsolicited inbound connections remain denied.
Explanation
Correct Answer
B:This outcome is the direct verification of the approved action: Measure the response interval using the documented alert and first meaningful response action timestamps. 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 playbook test criteria issue and the corrective action Define practical exercise cadence, acceptance checks and plan improvement based on measured test results. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The report reflects the actual analyst response interval and separates it from machine alert latency.
C:This observation validates another cvss environmental metrics issue and the corrective action Adjust environmental impact and business-specific requirements according to the affected asset context. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The report reflects the actual analyst response interval and separates it from machine alert latency.
D:This observation validates another stateful firewall session tracking issue and the corrective action Apply the approved stateful session policy so response packets are associated with an established authorized connection. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: The report reflects the actual analyst response interval and separates it from machine alert latency.
Question 78
The on-call cloud identity operations detects an exception during change-controlled validation; its threat intelligence analyst confirms: An exploit is possible only to a fully authenticated administrator, yet the scoring worksheet says no privileges are necessary. Keep least privilege and approval boundaries intact while testing the security decision. The privacy reviewer requires redactable evidence and independent approval before any sensitive log export. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Add verified dependency pinning, signed artifact provenance and enforced security tests as approval gates in the CI/CD workflow.
- Set privileges required based on the authority the attacker needs before exploitation rather than after compromise.
- Assign a vulnerability owner, track approved risk decisions and require rescanning after corrective changes.
- Correlate timestamped DHCP leases, endpoint asset identity and switch or wireless association logs.
Explanation
Correct Answer
B:This action addresses the cvss privileges required issue in the on-call cloud identity operations, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The worksheet reflects preexisting administrator authority and cites the verified prerequisite. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different devsecops pipeline controls issue, such as: A deployment pipeline builds unsigned containers from an unpinned dependency and bypasses its code security gate for releases. It does not address the specific failure reported by the on-call cloud identity operations. The decisive acceptance condition for this case is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
C:That action belongs to a different vulnerability lifecycle tracking issue, such as: A scanner repeatedly flags a known missing patch but the SOC closes each alert without assigning an owner or confirming remediation. It does not address the specific failure reported by the on-call cloud identity operations. The decisive acceptance condition for this case is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
D:That action belongs to a different asset attribution issue, such as: A suspicious outbound flow uses a reused DHCP address and responders isolate the wrong laptop without checking lease history. It does not address the specific failure reported by the on-call cloud identity operations. The decisive acceptance condition for this case is: The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
Question 79
The global streaming delivery platform detects an exception during change-controlled validation; its threat intelligence analyst confirms: Return traffic for a client-initiated TLS session arrives on an ephemeral port, and a stateless deny rule drops it as unsolicited. Separate collector limitations from a real application or network failure before deciding. Only a narrowly authorized test client and harmless indicator can be used for live validation. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Use state tracking for the authorized connection and evaluate packets in the context of the established five-tuple.
- Use the packet's destination port and session direction to distinguish client ephemeral from server service port.
- Redact protected payment fields and enforce policy-aware retention and data access at the logging layer.
- Examine the Linux authentication journal or auth log for SSHD failures and source addresses.
Explanation
Correct Answer
A:This action addresses the stateful policy session matching issue in the global streaming delivery platform, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different ephemeral client port issue, such as: A browser sends a request from TCP source port 51427 to destination 443, and a report labels 51427 as the web server listener. It does not address the specific failure reported by the global streaming delivery platform. The decisive acceptance condition for this case is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
C:That action belongs to a different payment-sensitive information issue, such as: A proxy logs unmasked payment credentials from an API request and retains them in a low-trust analytics workspace. It does not address the specific failure reported by the global streaming delivery platform. The decisive acceptance condition for this case is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
D:That action belongs to a different linux authentication logs issue, such as: A server's SSH brute-force activity is overlooked because the team reads only the web access log. It does not address the specific failure reported by the global streaming delivery platform. The decisive acceptance condition for this case is: Response traffic to the known session passes while unrelated unsolicited inbound packets remain blocked.
Question 80
After the SOC automation specialist at the international logistics dispatch applies this approved action — Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules. — the original issue is revisited: A SOC treats every traffic spike as malicious and ignores normal weekly backup peaks in historical measurements. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The analysis keeps base severity comparable while environmental priority distinguishes the critical hospital service.
- The controlled tunneling-like query set triggers review without treating normal CDN hostnames as confirmed exfiltration.
- The inventory includes the reachable staging service and its owner without inventing a confirmed vulnerability.
- The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Build time-aware baselines and alert on sustained deviation conditioned on established workload schedules. 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 cvss environmental metrics issue and the corrective action Adjust environmental impact and business-specific requirements according to the affected asset context. It cannot confirm the international logistics dispatch control. Required evidence for the current investigation is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
B:This observation validates another dns tunneling indicators issue and the corrective action Correlate DNS label entropy, query rate, destination reputation and endpoint process evidence for possible tunneling. It cannot confirm the international logistics dispatch control. Required evidence for the current investigation is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.
C:This observation validates another public attack surface inventory issue and the corrective action Inventory exposed addresses, services and identities as attack surfaces separately from assessed vulnerabilities. It cannot confirm the international logistics dispatch control. Required evidence for the current investigation is: The weekly backup window remains baseline-compliant while an unusual unscheduled burst is escalated.