Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 13
Question 120
During privilege recertification, the regional disaster recovery network reports this evidence to a host incident responder: A SOC discovers that a report bucket allows anonymous reads even though its data has not been altered and the application stays available. The reviewer must distinguish the observable weakness from actor identity and unsupported assumptions. 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?
- Enforce mandatory access controls using central sensitivity labels and clearance rules that owners cannot override.
- Normalize source timestamps to a common reference while retaining original timezone and clock-skew context.
- Correlate DNS response history, timestamps, TTL and network flows rather than using a current lookup retroactively.
- Restrict anonymous read access using scoped identities and validate the private storage policy before resuming report access.
Explanation
Correct Answer
D:This action addresses the confidentiality of customer exports issue in the regional disaster recovery network, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: An unauthenticated request is denied and an approved report-reader retrieves the unchanged file normally. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different mandatory classification issue, such as: A highly classified document remains accessible because its owner added an external user despite a compulsory information label. It does not address the specific failure reported by the regional disaster recovery network. The decisive acceptance condition for this case is: An unauthenticated request is denied and an approved report-reader retrieves the unchanged file normally.
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 disaster recovery network. The decisive acceptance condition for this case is: An unauthenticated request is denied and an approved report-reader retrieves the unchanged file normally.
C:That action belongs to a different hostname and ip pivoting issue, such as: A DNS query resolves to a rapidly changing address and the SOC attributes all historical traffic to the currently returned IP. It does not address the specific failure reported by the regional disaster recovery network. The decisive acceptance condition for this case is: An unauthenticated request is denied and an approved report-reader retrieves the unchanged file normally.
Question 121
The SaaS document synchronization tenant detects an exception during change-controlled validation; its identity monitoring analyst confirms: Responders clean a damaged server and rejoin it to production before stopping a still-active attacker account. Record both positive and negative control results with an accountable incident owner. 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?
- Correlate logon type, account purpose, source device and approved access policy in server profiling.
- Apply containment and eradication controls before verified service restoration and monitoring.
- Verify the request through an established independent channel and report the lookalike login link under the phishing procedure.
- Inspect authorized registry run locations and startup artifacts, preserving evidence before removing unauthorized entries.
Explanation
Correct Answer
B:This action addresses the containment and recovery sequencing issue in the SaaS document synchronization tenant, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The recovered system is restored without the compromised identity retaining access. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different service account login anomalies issue, such as: A noninteractive backup service account is suddenly used for an interactive remote desktop login from an unfamiliar workstation. It does not address the specific failure reported by the SaaS document synchronization tenant. The decisive acceptance condition for this case is: The recovered system is restored without the compromised identity retaining access.
C:That action belongs to a different credential phishing verification issue, such as: An analyst receives an email purporting to be the SOC lead requesting immediate authentication on a newly registered imitation portal. It does not address the specific failure reported by the SaaS document synchronization tenant. The decisive acceptance condition for this case is: The recovered system is restored without the compromised identity retaining access.
D:That action belongs to a different windows registry persistence issue, such as: A suspicious executable is stopped but restarts after every interactive login through a modified user startup registry path. It does not address the specific failure reported by the SaaS document synchronization tenant. The decisive acceptance condition for this case is: The recovered system is restored without the compromised identity retaining access.
Question 122
During scheduled SOC detection audit, the telemedicine portal reports this evidence to a incident commander: A file is digitally signed but still readable by everyone, while the team claims that signatures alone encrypt its contents. Preserve authorized business traffic during monitoring and test with harmless controlled indicators. A separate healthy network segment must remain online and unchanged throughout the controlled experiment. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Restrict negotiated TLS cipher suites to the current approved authenticated encryption and key-exchange profile.
- Set privileges required based on the authority the attacker needs before exploitation rather than after compromise.
- Apply encryption for confidentiality and a verifiable signature for origin and integrity according to separate requirements.
- Deploy an approved endpoint detection agent capable of recording process lineage and command-line executions.
Explanation
Correct Answer
C:This action addresses the asymmetric signatures versus secrecy issue in the telemedicine portal, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: An unauthorized reader cannot view the encrypted file and an approved verifier detects tampering. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different cipher suite selection issue, such as: A server's advertised TLS suites include obsolete weak key-exchange modes that remain negotiable with legacy clients. It does not address the specific failure reported by the telemedicine portal. The decisive acceptance condition for this case is: An unauthorized reader cannot view the encrypted file and an approved verifier detects tampering.
B:That action belongs to a different cvss privileges required issue, such as: An exploit is possible only to a fully authenticated administrator, yet the scoring worksheet says no privileges are necessary. It does not address the specific failure reported by the telemedicine portal. The decisive acceptance condition for this case is: An unauthorized reader cannot view the encrypted file and an approved verifier detects tampering.
D:That action belongs to a different host edr placement issue, such as: A workstation executes suspicious PowerShell scripts but perimeter firewall events do not show the local process ancestry. It does not address the specific failure reported by the telemedicine portal. The decisive acceptance condition for this case is: An unauthorized reader cannot view the encrypted file and an approved verifier detects tampering.
Question 123
The healthcare privacy monitoring desk detects an exception during change-controlled validation; its threat intelligence analyst confirms: A suspicious attachment reaches a mailbox but no execution is observed, and an incident note marks command-and-control as completed. Record both positive and negative control results with an accountable incident owner. The event window is bounded by an original audit timestamp, a verified activity owner and the affected asset ID. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Compare source-specific throughput and destination volume to the approved interval baseline.
- Execute the sample only in an isolated authorized malware detonation environment with protected collection of observable artifacts.
- Use hashes to correlate content identity and seek independent download-path evidence before attributing the transfer source.
- Classify the observed delivery stage separately from unconfirmed exploitation, installation and C2 activity.
Explanation
Correct Answer
D:This action addresses the cyber kill chain progression issue in the healthcare privacy monitoring desk, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different network throughput baseline issue, such as: A server usually sends tens of megabytes per minute, then begins transmitting gigabytes to an unknown address during a low-traffic period. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
B:That action belongs to a different malware analysis safety issue, such as: An analyst double-clicks a suspicious attachment on a production workstation to observe its behavior. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
C:That action belongs to a different hash meaning issue, such as: A sample hash appears in two endpoint records, and the SOC asserts that it proves both hosts downloaded the file from one particular URL. It does not address the specific failure reported by the healthcare privacy monitoring desk. The decisive acceptance condition for this case is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
Question 124
After the threat intelligence analyst at the healthcare privacy monitoring desk applies this approved action — Classify the observed delivery stage separately from unconfirmed exploitation, installation and C2 activity. — the original issue is revisited: A suspicious attachment reaches a mailbox but no execution is observed, and an incident note marks command-and-control as completed. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The recovered system is restored without the compromised identity retaining access.
- The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
- The test text renders as inert characters and no script runs in the analyst browser.
- A controlled benign encryption simulator triggers containment while unaffected hosts stay online.
Explanation
Correct Answer
B:This outcome is the direct verification of the approved action: Classify the observed delivery stage separately from unconfirmed exploitation, installation and C2 activity. 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 containment and recovery sequencing issue and the corrective action Apply containment and eradication controls before verified service restoration and monitoring. It cannot confirm the healthcare privacy monitoring desk control. Required evidence for the current investigation is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
C: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 healthcare privacy monitoring desk control. Required evidence for the current investigation is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
D:This observation validates another ransomware behavioral signal issue and the corrective action Isolate the affected host under the response playbook and correlate file changes with process and network events. It cannot confirm the healthcare privacy monitoring desk control. Required evidence for the current investigation is: The timeline records confirmed delivery and clearly marks later intrusion stages unobserved.
Question 125
A network protocol analyst at the energy-sector security monitoring center investigates during business continuity tabletop: A single egress firewall rule is proposed for an HTTP flood arriving from thousands of unrelated source networks. Keep packet collection within the approved scope and do not assume encrypted payloads are readable. 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 upstream rate-limiting and DDoS analysis appropriate to distributed sources rather than a single-source-only block.
- Identify encapsulation boundaries and obtain permitted endpoint or decapsulated observation where available.
- Compare current listening and observed network ports to the approved server port baseline and validate the owner.
- Correlate stable host identity and event source metadata before joining cross-system event records.
Explanation
Correct Answer
A:This action addresses the distributed request flood issue in the energy-sector security monitoring center, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: A safe distributed-load simulation is mitigated without denying representative ordinary clients. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different tunneled inner protocol issue, such as: A network monitor sees only outer GRE packets and assumes it can determine the encapsulated application without decoding an authorized tunnel. It does not address the specific failure reported by the energy-sector security monitoring center. The decisive acceptance condition for this case is: A safe distributed-load simulation is mitigated without denying representative ordinary clients.
C:That action belongs to a different port exposure profile issue, such as: A monitored database server unexpectedly starts listening on a new remote access port after an unapproved package installation. It does not address the specific failure reported by the energy-sector security monitoring center. The decisive acceptance condition for this case is: A safe distributed-load simulation is mitigated without denying representative ordinary clients.
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 energy-sector security monitoring center. The decisive acceptance condition for this case is: A safe distributed-load simulation is mitigated without denying representative ordinary clients.
Question 126
During scheduled SOC detection audit, the public-sector records application reports this evidence to a cloud audit engineer: A temporary executable reappears every five minutes via a newly installed cron entry despite removal of the original process. Retain endpoint process, user and timestamp context while limiting access to sensitive records. The analyst must identify what the evidence does not prove and avoid inferring a new compromise from a generic alert. 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.
- Use auditd or equivalent authorized privileged operation records to link file write, effective user and executable.
- Document the intended failure behavior, bypass path and availability-versus-security tradeoff before production cutover.
- Add verified dependency pinning, signed artifact provenance and enforced security tests as approval gates in the CI/CD workflow.
Explanation
Correct Answer
A:This action addresses the linux scheduled task persistence issue in the public-sector records application, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The process stays absent over the expected scheduling interval and logs document the original trigger. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different linux audit process escalation issue, such as: A privileged configuration file was altered and a shell session was active, but ownership is guessed from the machine's logged-in users list. It does not address the specific failure reported by the public-sector records application. The decisive acceptance condition for this case is: The process stays absent over the expected scheduling interval and logs document the original trigger.
C:That action belongs to a different inline device failure mode issue, such as: An IPS is placed inline on the only production path without an approved fail-open or fail-closed business policy. It does not address the specific failure reported by the public-sector records application. The decisive acceptance condition for this case is: The process stays absent over the expected scheduling interval and logs document the original trigger.
D: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 public-sector records application. The decisive acceptance condition for this case is: The process stays absent over the expected scheduling interval and logs document the original trigger.
Question 127
An incident at the on-call cloud identity operations is escalated to a incident commander after forensic evidence quality assessment reveals: A firewall log shows a public NAT source that represents many internal clients, but the analyst blocks all users as one compromised host. 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. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Correlate the flow tuple and timestamp with NAT translation tables to identify the originating private host.
- Enforce mandatory access controls using central sensitivity labels and clearance rules that owners cannot override.
- Assign a vulnerability owner, track approved risk decisions and require rescanning after corrective changes.
- Interpret IPv6 next-header chaining and extension fields before identifying the transport protocol.
Explanation
Correct Answer
A:This action addresses the nat translation context issue in the on-call cloud identity operations, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different mandatory classification issue, such as: A highly classified document remains accessible because its owner added an external user despite a compulsory information label. It does not address the specific failure reported by the on-call cloud identity operations. The decisive acceptance condition for this case is: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
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: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
D:That action belongs to a different ipv6 next-header handling issue, such as: A capture shows IPv6 packets with a next-header value for TCP after permitted extension headers, but the parser labels them all as UDP. It does not address the specific failure reported by the on-call cloud identity operations. The decisive acceptance condition for this case is: Only the implicated internal client is identified and other clients sharing the translated address remain unaffected.
Question 128
An incident at the regional payments SOC is escalated to a cloud audit engineer after incident-response triage reveals: A forensic investigator decides to reconnect a restored payment server without application-owner acceptance or network security verification. Do not expand containment or investigative access to unrelated tenants or systems. The analyst can capture a synthetic event in a segregated lab but cannot access unrelated customer payloads. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Conduct a postincident review and assign specific corrective actions with owners and due dates.
- Interpret HTTP method, path and 401 status independently of network reachability.
- Require the designated service owner and security authority to approve restoration after objective validation.
- 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 recovery approval responsibility issue in the regional payments SOC, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The change record contains both business-function acceptance and security clearance. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different lessons learned improvement issue, such as: After an incident closes, the same alert-triage delay repeats because no one records gaps or updates the runbook. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The change record contains both business-function acceptance and security clearance.
B:That action belongs to a different http method and status issue, such as: An application log records POST /login returning 401, but the team treats it as evidence the user was authenticated because the server answered. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The change record contains both business-function acceptance and security clearance.
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 regional payments SOC. The decisive acceptance condition for this case is: The change record contains both business-function acceptance and security clearance.
Question 129
The regional payments SOC detects an exception during monitoring baseline revision; its threat intelligence analyst confirms: A client repeatedly receives NXDOMAIN for a newly registered service and a report calls it a successful resolution. Separate collector limitations from a real application or network failure before deciding. 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?
- Read DNS response codes and answer records with the query ID and authoritative context.
- Report that encrypted payload reconstruction is unavailable without lawful decryption context; use approved endpoint artifact instead.
- Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry.
- Enforce mandatory access controls using central sensitivity labels and clearance rules that owners cannot override.
Explanation
Correct Answer
A:This action addresses the dns response significance issue in the regional payments SOC, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The analyst distinguishes successful A/AAAA responses from NXDOMAIN errors with timestamped evidence. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different https extraction limit issue, such as: A PCAP contains TLS-encrypted file transfer, but no permitted session keys or endpoint artifact are available and analysts claim plaintext export. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The analyst distinguishes successful A/AAAA responses from NXDOMAIN errors with timestamped evidence.
C: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 distinguishes successful A/AAAA responses from NXDOMAIN errors with timestamped evidence.
D:That action belongs to a different mandatory classification issue, such as: A highly classified document remains accessible because its owner added an external user despite a compulsory information label. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The analyst distinguishes successful A/AAAA responses from NXDOMAIN errors with timestamped evidence.
Question 130
During scheduled SOC detection audit, the telecom customer identity platform reports this evidence to a forensic evidence custodian: A production firewall's effective policy differs from the approved configuration repository after a manual emergency edit. Protect regulated information and retain a tested service recovery path. Two log sources use different time representations; the reviewer must preserve provenance when correlating them. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Review task registration, executable path, owner and run history against approved task inventory.
- Detect and document configuration drift and apply the authorized baseline correction with tested rollback.
- Evaluate the required resource, subject, device and environmental attributes within the authorization policy.
- Use permitted web-category and URL filtering event data to identify blocked malicious destinations.
Explanation
Correct Answer
B:This action addresses the configuration baseline drift issue in the telecom customer identity platform, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: Postchange comparison matches the approved rules and an unauthorized deviation produces an alert. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different scheduled task profile issue, such as: An endpoint runs an unknown scheduled task nightly and the team attributes its network uploads to ordinary user browser activity. It does not address the specific failure reported by the telecom customer identity platform. The decisive acceptance condition for this case is: Postchange comparison matches the approved rules and an unauthorized deviation produces an alert.
C:That action belongs to a different attribute-based access issue, such as: A contractor may access a case only if device compliance, employment status and case sensitivity meet policy, but static roles ignore these factors. It does not address the specific failure reported by the telecom customer identity platform. The decisive acceptance condition for this case is: Postchange comparison matches the approved rules and an unauthorized deviation produces an alert.
D:That action belongs to a different web content filter context issue, such as: A browser reaches known phishing pages over HTTPS yet analysts monitor only endpoint infection alerts after the fact. It does not address the specific failure reported by the telecom customer identity platform. The decisive acceptance condition for this case is: Postchange comparison matches the approved rules and an unauthorized deviation produces an alert.