Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 6
Question 50
After the network detection engineer at the online enrollment service applies this approved action — Revoke device tokens and perform authorized selective wipe or device retirement under the mobile management policy. — the original issue is revisited: A lost managed phone retains corporate mail tokens after a contractor's account is disabled, and the MDM record still shows active enrollment. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The new process is flagged for review and a permitted signed service remains in the expected inventory.
- The lost device no longer reaches protected email and authorized devices remain enrolled.
- An unauthorized cross-account read fails and approved cloud-provider infrastructure availability remains unchanged.
- A verified client completes TLS without trust warnings while a fake self-signed endpoint remains untrusted.
Explanation
Correct Answer
B:This outcome is the direct verification of the approved action: Revoke device tokens and perform authorized selective wipe or device retirement under the mobile management policy. 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 running process baseline issue and the corrective action Compare process lineage, binary signature and service ownership to an approved server baseline. It cannot confirm the online enrollment service control. Required evidence for the current investigation is: The lost device no longer reaches protected email and authorized devices remain enrolled.
C:This observation validates another cloud shared responsibility issue and the corrective action Assign tenant IAM and storage policies to the organization while validating which infrastructure controls are provider-managed. It cannot confirm the online enrollment service control. Required evidence for the current investigation is: The lost device no longer reaches protected email and authorized devices remain enrolled.
D:This observation validates another tls trust-chain validation issue and the corrective action Deploy the correct identity-matching leaf and intermediate CA chain and validate trust path and hostname. It cannot confirm the online enrollment service control. Required evidence for the current investigation is: The lost device no longer reaches protected email and authorized devices remain enrolled.
Question 51
After the SOC automation specialist at the third-party partner exchange applies this approved action — Combine endpoint audit logs and identity behavior analytics with existing network enforcement and central correlation. — the original issue is revisited: A firewall denies unauthorized traffic, but analysts cannot detect attacks originating from already authenticated internal endpoints. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A safe lateral-traffic test generates a network event while endpoint security controls remain enabled.
- The new process is flagged for review and a permitted signed service remains in the expected inventory.
- The analyst distinguishes successful A/AAAA responses from NXDOMAIN errors with timestamped evidence.
- An internal malicious test yields an actionable endpoint or identity alert even with permitted network access.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Combine endpoint audit logs and identity behavior analytics with existing network enforcement and central correlation. 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 SOC automation specialist at the third-party partner exchange applies this approved action — Combine endpoint audit logs and identity behavior analytics with existing network enforcement and central correlation. — the original issue is revisited: A firewall….
Incorrect Answers
A:This observation validates another network ids coverage issue and the corrective action Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: An internal malicious test yields an actionable endpoint or identity alert even with permitted network access.
B:This observation validates another running process baseline issue and the corrective action Compare process lineage, binary signature and service ownership to an approved server baseline. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: An internal malicious test yields an actionable endpoint or identity alert even with permitted network access.
C:This observation validates another dns response significance issue and the corrective action Read DNS response codes and answer records with the query ID and authoritative context. It cannot confirm the third-party partner exchange control. Required evidence for the current investigation is: An internal malicious test yields an actionable endpoint or identity alert even with permitted network access.
Question 52
After the tier-1 security analyst at the customer support ticket service applies this approved action — Restrict negotiated TLS cipher suites to the current approved authenticated encryption and key-exchange profile. — the original issue is revisited: A server's advertised TLS suites include obsolete weak key-exchange modes that remain negotiable with legacy clients. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A controlled unauthorized application session is identified and blocked without preventing approved TLS business traffic.
- The classification pairs a fired alert with confirmed positive test evidence.
- The test client negotiates an approved suite and a weak-suite-only client cannot complete negotiation.
- The altered sample is distinguished from the original without relying on filename or file extension.
Explanation
Correct Answer
C:This outcome is the direct verification of the approved action: Restrict negotiated TLS cipher suites to the current approved authenticated encryption and key-exchange profile. 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 application visibility control issue and the corrective action Use sanctioned application classification and control policy events for the prohibited application. It cannot confirm the customer support ticket service control. Required evidence for the current investigation is: The test client negotiates an approved suite and a weak-suite-only client cannot complete negotiation.
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 customer support ticket service control. Required evidence for the current investigation is: The test client negotiates an approved suite and a weak-suite-only client cannot complete negotiation.
D:This observation validates another cryptographic hash comparison issue and the corrective action Compare the computed file hash to the trusted approved digest and preserve the suspect copy for investigation. It cannot confirm the customer support ticket service control. Required evidence for the current investigation is: The test client negotiates an approved suite and a weak-suite-only client cannot complete negotiation.
Question 53
The remote industrial maintenance site detects an exception during postincident evidence review; its network protocol analyst confirms: Two vulnerabilities have similar technical severity but only one affects an exposed payment workflow that processes regulated data. Keep least privilege and approval boundaries intact while testing the security decision. The acceptance test includes a permitted operation and an explicitly disallowed operation, with both verdicts recorded. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Correlate authorized endpoint and server telemetry with TLS metadata rather than claiming encrypted payload visibility.
- Map identity provider event outcomes and failure reasons into consistent SIEM logon categories.
- Publish a response plan defining roles, escalation paths, decision authority, contact methods and evidence responsibilities.
- Score remediation priority using asset value, exposure, likelihood and business impact instead of technical severity alone.
Explanation
Correct Answer
D:This action addresses the risk prioritization issue in the remote industrial maintenance site, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The exposed regulated service receives documented earlier remediation without misclassifying the lower-impact asset. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different encrypted payload blind spot issue, such as: A passive network sensor receives TLS traffic but claims to identify the exact file contents transferred from packet headers alone. It does not address the specific failure reported by the remote industrial maintenance site. The decisive acceptance condition for this case is: The exposed regulated service receives documented earlier remediation without misclassifying the lower-impact asset.
B:That action belongs to a different authentication status codes issue, such as: A sign-in dashboard counts successful and failed logins as identical because its normalized event mapping omits outcome fields. It does not address the specific failure reported by the remote industrial maintenance site. The decisive acceptance condition for this case is: The exposed regulated service receives documented earlier remediation without misclassifying the lower-impact asset.
C:That action belongs to a different incident response authority issue, such as: A ransomware alert arrives outside office hours and analysts cannot identify who may authorize network isolation or customer notifications. It does not address the specific failure reported by the remote industrial maintenance site. The decisive acceptance condition for this case is: The exposed regulated service receives documented earlier remediation without misclassifying the lower-impact asset.
Question 54
After the tier-1 security analyst at the insurance claims ingestion queue applies this approved action — Escape the literal period in the hostname regex and verify word or field boundaries. — the original issue is revisited: A URL filter pattern uses an unescaped dot between hostname labels and accidentally matches unrelated characters. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The safe injection probe triggers application inspection and normal HTTPS requests remain allowed.
- The evidence manifest records approved cryptographic hashes and validates the same content after transfer.
- The test drop appears in upstream enforcement logs and its absence downstream is explained.
- The intended domain matches while a lookalike string lacking the literal dot does not.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Escape the literal period in the hostname regex and verify word or field boundaries. 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 packet-filter limitations issue and the corrective action Use an eligible application-layer inspection control for permitted decrypted HTTP content while retaining network ACL enforcement. It cannot confirm the insurance claims ingestion queue control. Required evidence for the current investigation is: The intended domain matches while a lookalike string lacking the literal dot does not.
B:This observation validates another endpoint hash collision assumption issue and the corrective action Use a collision-resistant digest appropriate to the integrity requirement and document the algorithm and handling procedures. It cannot confirm the insurance claims ingestion queue control. Required evidence for the current investigation is: The intended domain matches while a lookalike string lacking the literal dot does not.
C:This observation validates another acl traffic suppression issue and the corrective action Correlate upstream ACL counters or logs with downstream sensor visibility and document where traffic was denied. It cannot confirm the insurance claims ingestion queue control. Required evidence for the current investigation is: The intended domain matches while a lookalike string lacking the literal dot does not.
Question 55
An incident at the customer care web portal is escalated to a cloud audit engineer after endpoint isolation rehearsal reveals: The network reports a sudden rise in transferred bytes but an analyst samples one packet and assumes the sample proves aggregate volume. Do not reclassify a detection as malicious solely from a signature identifier. 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?
- Evaluate actual asset criticality, confirmed impact and exposure instead of using signature severity as the incident priority alone.
- Aggregate flow-byte counters over a normalized observation interval to calculate throughput trends.
- Analyze the sample's permitted static strings and controlled behavioral evidence before inferring its functions.
- Retrieve permitted full command-line and parent-process telemetry with executing identity for that event.
Explanation
Correct Answer
B:This action addresses the throughput over time issue in the customer care web portal, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The resulting time series reports traffic volume for the affected endpoint across the full interval. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A: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 customer care web portal. The decisive acceptance condition for this case is: The resulting time series reports traffic volume for the affected endpoint across the full interval.
C:That action belongs to a different reverse engineering assessment issue, such as: A packaged executable contacts an unexpected domain, but the team claims to know its full capability from the filename alone. It does not address the specific failure reported by the customer care web portal. The decisive acceptance condition for this case is: The resulting time series reports traffic volume for the affected endpoint across the full interval.
D:That action belongs to a different process command line evidence issue, such as: An endpoint alert shows powershell.exe but not the argument string, and the SOC cannot tell whether the command was inventory or suspicious. It does not address the specific failure reported by the customer care web portal. The decisive acceptance condition for this case is: The resulting time series reports traffic volume for the affected endpoint across the full interval.
Question 56
The enterprise mail filtering gateway detects an exception during monitoring baseline revision; its network protocol analyst confirms: One host made a connection to a suspicious domain, and the analyst calls it definitive evidence of stolen credentials with no login record. Do not infer compromise solely from a filename, service port or an absence of antivirus alerts. The acceptance test includes a permitted operation and an explicitly disallowed operation, with both verdicts recorded. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Inspect authorized registry run locations and startup artifacts, preserving evidence before removing unauthorized entries.
- Label the network indicator as circumstantial until direct authentication or credential-access evidence is collected.
- Separate observable infrastructure indicators from actor-attribution confidence and require corroborating tactics and independent evidence.
- Mark the defensive interruption at the observed stage and avoid assuming later unauthorized actions occurred.
Explanation
Correct Answer
B:This action addresses the indirect behavioral inference issue in the enterprise mail filtering gateway, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The written conclusion distinguishes suspected credential theft from proven access and cites corroboration gaps. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A: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 enterprise mail filtering gateway. The decisive acceptance condition for this case is: The written conclusion distinguishes suspected credential theft from proven access and cites corroboration gaps.
C:That action belongs to a different threat actor attribution caution issue, such as: A suspicious source IP belongs to a hosting provider, yet a report attributes the campaign to a named group solely by that address. It does not address the specific failure reported by the enterprise mail filtering gateway. The decisive acceptance condition for this case is: The written conclusion distinguishes suspected credential theft from proven access and cites corroboration gaps.
D:That action belongs to a different kill chain defensive interruption issue, such as: A safe simulated phishing attempt is blocked at mail delivery, but an analyst reports successful attacker objectives solely from initial reconnaissance. It does not address the specific failure reported by the enterprise mail filtering gateway. The decisive acceptance condition for this case is: The written conclusion distinguishes suspected credential theft from proven access and cites corroboration gaps.
Question 57
A threat intelligence analyst at the cloud service security team investigates during business continuity tabletop: An analyst expects a pattern for exactly four numeric characters but uses a wildcard that also matches arbitrary text. Interpret the actual protocol evidence and avoid claiming absent payload or session state. The response must be scoped to the relevant identity, host and application, not a shared public address alone. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Inspect authorized application payload and correlate its relevant byte offset with the matching network session.
- Use a digit class and explicit repetition count for the intended four-character numeric identifier.
- Conduct a postincident review and assign specific corrective actions with owners and due dates.
- Publish a response plan defining roles, escalation paths, decision authority, contact methods and evidence responsibilities.
Explanation
Correct Answer
B:This action addresses the regex digit quantifier issue in the cloud service security team, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The test matches four-digit values but rejects alphabetic or differently sized identifiers. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different payload inspection boundaries issue, such as: An IDS flags HTTP injection inside a plaintext body, while an analyst attributes it to packet sequence numbers alone. It does not address the specific failure reported by the cloud service security team. The decisive acceptance condition for this case is: The test matches four-digit values but rejects alphabetic or differently sized identifiers.
C: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 cloud service security team. The decisive acceptance condition for this case is: The test matches four-digit values but rejects alphabetic or differently sized identifiers.
D:That action belongs to a different incident response authority issue, such as: A ransomware alert arrives outside office hours and analysts cannot identify who may authorize network isolation or customer notifications. It does not address the specific failure reported by the cloud service security team. The decisive acceptance condition for this case is: The test matches four-digit values but rejects alphabetic or differently sized identifiers.
Question 58
After the SOC automation specialist at the remote industrial maintenance site applies this approved action — Remove unhealthy endpoints using real application health probes and restore a redundant authentication service path. — the original issue is revisited: The sign-in cluster denies all legitimate clients after a single failed node remains in rotation, while account secrecy and stored records are intact. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The scoring record identifies network reachability without falsely requiring local or physical presence.
- The packet record includes the DNS query and response while collection excludes unrelated tenants.
- The investigation identifies the unapproved distributed transfer pattern despite changing destinations.
- Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Remove unhealthy endpoints using real application health probes and restore a redundant authentication service path. 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 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 remote industrial maintenance site control. Required evidence for the current investigation is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
B: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 remote industrial maintenance site control. Required evidence for the current investigation is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
C:This observation validates another peer-to-peer transfer patterns issue and the corrective action Aggregate permitted peer-to-peer connection metadata and correlate it with authorized application inventory. It cannot confirm the remote industrial maintenance site control. Required evidence for the current investigation is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
Question 59
The medical claims application detects an exception during business continuity tabletop; its security monitoring architect confirms: A postincident improvement list includes many actions but no owner, due date or control effectiveness metric. 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. An independent data owner and the recovery coordinator will review the negative containment test as separate approvers, while the forensic custodian records transfer timestamps and integrity hashes without editing the original evidence. 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.
- Track behavioral IoA sequences with process lineage and account context, not only static file signatures.
- Assign named stakeholders and measurable follow-up evidence to lessons-learned improvements.
- Correlate UDP application transaction identifiers, ports and addresses rather than expecting TCP handshake state.
Explanation
Correct Answer
C:This action addresses the lessons learned accountability issue in the medical claims application, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: Each action has a responsible owner, deadline and verifiable acceptance result. 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 medical claims application. The decisive acceptance condition for this case is: Each action has a responsible owner, deadline and verifiable acceptance result.
B:That action belongs to a different indicators of attack issue, such as: A script executes an unusual credential-access sequence before any known malicious binary is written to disk. It does not address the specific failure reported by the medical claims application. The decisive acceptance condition for this case is: Each action has a responsible owner, deadline and verifiable acceptance result.
D: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 medical claims application. The decisive acceptance condition for this case is: Each action has a responsible owner, deadline and verifiable acceptance result.
Question 60
During preproduction security acceptance, the third-party partner exchange reports this evidence to a forensic evidence custodian: An incident alert refers to an address shared by development and production over time, and triage assumes all addresses have equal business impact. Protect regulated information and retain a tested service recovery path. 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?
- Measure the response interval using the documented alert and first meaningful response action timestamps.
- Map time-aware critical subnet inventory and hostname ownership into network profile and risk prioritization.
- Correlate the flow tuple and timestamp with NAT translation tables to identify the originating private host.
- Map bidirectional path coverage and correlate sessions using both tap positions or equivalent reliable flow exporters.
Explanation
Correct Answer
B:This action addresses the critical asset address ranges issue in the third-party partner exchange, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The alert is associated with the correct critical asset during the observed incident window. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different mean time to respond issue, such as: An incident dashboard reports a one-minute response based on alert creation, although the first analyst action occurred forty minutes later. It does not address the specific failure reported by the third-party partner exchange. The decisive acceptance condition for this case is: The alert is associated with the correct critical asset during the observed incident window.
C:That action belongs to a different nat translation context issue, such as: A firewall log shows a public NAT source that represents many internal clients, but the analyst blocks all users as one compromised host. It does not address the specific failure reported by the third-party partner exchange. The decisive acceptance condition for this case is: The alert is associated with the correct critical asset during the observed incident window.
D:That action belongs to a different asymmetric collection issue, such as: A monitor sees outbound requests but never records replies due to return-path routing through another switch. It does not address the specific failure reported by the third-party partner exchange. The decisive acceptance condition for this case is: The alert is associated with the correct critical asset during the observed incident window.