Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) 200-201 Practice Test 50
Question 490
After the SOC investigation lead at the energy-sector security monitoring center applies this approved action — Correlate independent process and authentication evidence to strengthen the incident reconstruction. — the original issue is revisited: A host EDR record reports process execution while a centralized identity event shows the same account sign-in at that timestamp. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The simulation produces an endpoint behavior alert linked to the process tree and changed key.
- Both independent sources agree on identity, host and time without being mistaken for the same raw event.
- The classification pairs a fired alert with confirmed positive test evidence.
- The connection metadata shows the expected supported ephemeral key exchange and certificate authentication.
Explanation
Correct Answer
B:This outcome is the direct verification of the approved action: Correlate independent process and authentication evidence to strengthen the incident reconstruction. 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 investigation lead at the energy-sector security monitoring center applies this approved action — Correlate independent process and authentication evidence to strengthen the incident reconstruction. — the original issue is revisited: A host EDR record….
Incorrect Answers
A:This observation validates another behavioral edr alert issue and the corrective action Correlate endpoint behavior rules for unusual parent-child execution and persistence changes independent of file hash reputation. It cannot confirm the energy-sector security monitoring center control. Required evidence for the current investigation is: Both independent sources agree on identity, host and time without being mistaken for the same raw event.
C: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 energy-sector security monitoring center control. Required evidence for the current investigation is: Both independent sources agree on identity, host and time without being mistaken for the same raw event.
D: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 energy-sector security monitoring center control. Required evidence for the current investigation is: Both independent sources agree on identity, host and time without being mistaken for the same raw event.
Question 491
After the endpoint security engineer at the merchant checkout web service applies this approved action — Map external frontend, ephemeral client and internal backend ports in the application request chain. — the original issue is revisited: A reverse proxy accepts on TCP 8443 and forwards to TCP 8080, and the analyst claims both ports indicate identical client roles. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The diagram shows each listener and client role consistent with observed proxy logs.
- Reconstructed session analysis counts the payload once and retains the retransmission as transport evidence.
- The worksheet reflects preexisting administrator authority and cites the verified prerequisite.
- The inventory includes the reachable staging service and its owner without inventing a confirmed vulnerability.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Map external frontend, ephemeral client and internal backend ports in the application request chain. 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 tcp retransmission artifact issue and the corrective action Correlate TCP sequence and acknowledgment information to distinguish retransmission from a new application action. It cannot confirm the merchant checkout web service control. Required evidence for the current investigation is: The diagram shows each listener and client role consistent with observed proxy logs.
C:This observation validates another cvss privileges required issue and the corrective action Set privileges required based on the authority the attacker needs before exploitation rather than after compromise. It cannot confirm the merchant checkout web service control. Required evidence for the current investigation is: The diagram shows each listener and client role consistent with observed proxy logs.
D: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 merchant checkout web service control. Required evidence for the current investigation is: The diagram shows each listener and client role consistent with observed proxy logs.
Question 492
An incident at the remote industrial maintenance site is escalated to a SOC automation specialist after endpoint isolation rehearsal reveals: The sign-in cluster denies all legitimate clients after a single failed node remains in rotation, while account secrecy and stored records are intact. Do not treat a healthy dashboard status as proof of the required security property. A limited change window is approved, with a prechange reference, a tested rollback and a negative control action. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Mark user interaction according to the necessary victim action and document the observed click or open trigger.
- Remove unhealthy endpoints using real application health probes and restore a redundant authentication service path.
- Retrieve permitted full command-line and parent-process telemetry with executing identity for that event.
- Read DNS response codes and answer records with the query ID and authoritative context.
Explanation
Correct Answer
B:This action addresses the availability of authentication issue in the remote industrial maintenance site, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different cvss user interaction issue, such as: A malicious document requires a user to open it, but the incident team treats it as a zero-click network flaw. It does not address the specific failure reported by the remote industrial maintenance site. The decisive acceptance condition for this case is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
C: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 remote industrial maintenance site. The decisive acceptance condition for this case is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
D:That action belongs to a different dns response significance issue, such as: A client repeatedly receives NXDOMAIN for a newly registered service and a report calls it a successful resolution. It does not address the specific failure reported by the remote industrial maintenance site. The decisive acceptance condition for this case is: Authorized login succeeds after the failing node is isolated, without changing accounts or releasing confidential logs.
Question 493
A security monitoring architect at the regional payments SOC investigates during change-controlled validation: An analyst attributes a kernel driver crash to a browser tab only because the browser was foreground when the host failed. Preserve volatile artifacts and provenance without interrupting unrelated hosts. A second reviewer will compare the original rule, effective enforcement result and affected asset inventory. The comparison host belongs to a separate managed endpoint policy group with different users and process ancestry; preserve the suspect host execution trail and avoid interpreting the second machine as proof of activity on the first. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Review kernel crash or driver evidence separately from user-mode application events before assigning root cause.
- Correlate timestamped DHCP leases, endpoint asset identity and switch or wireless association logs.
- Apply encryption for confidentiality and a verifiable signature for origin and integrity according to separate requirements.
- Apply the approved owner-managed discretionary access control model for the nonclassified collaboration folder.
Explanation
Correct Answer
A:This action addresses the os kernel and user mode issue in the regional payments SOC, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The incident report links the failure to the diagnosed kernel component with corroborating crash artifacts. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B: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 regional payments SOC. The decisive acceptance condition for this case is: The incident report links the failure to the diagnosed kernel component with corroborating crash artifacts.
C:That action belongs to a different asymmetric signatures versus secrecy issue, such as: A file is digitally signed but still readable by everyone, while the team claims that signatures alone encrypt its contents. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The incident report links the failure to the diagnosed kernel component with corroborating crash artifacts.
D:That action belongs to a different discretionary ownership issue, such as: A file owner is permitted to share their research folder and a central admin assumes this is a mandatory classification label. It does not address the specific failure reported by the regional payments SOC. The decisive acceptance condition for this case is: The incident report links the failure to the diagnosed kernel component with corroborating crash artifacts.
Question 494
A tier-1 security analyst at the enterprise mail filtering gateway investigates during business continuity tabletop: An IMAP server logs tagged NO authentication failures while packet capture shows a completed TCP connection, and the case reports successful mail access. Interpret the actual protocol evidence and avoid claiming absent payload or session state. The measurement must distinguish the specifically affected network or process from a separate unaffected control group. Which targeted defensive analysis or remediation action most directly addresses the stated failure while honoring the constraints?
- Map the event to the secure web proxy logs and correlate it with user authentication and request ID.
- Prioritize by exploit evidence, criticality, internet exposure and tested deployment/rollback dependencies.
- Assign tenant IAM and storage policies to the organization while validating which infrastructure controls are provider-managed.
- Distinguish IMAP tagged command response from transport handshake success when assessing authentication.
Explanation
Correct Answer
D:This action addresses the imap authentication response issue in the enterprise mail filtering gateway, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The case correctly records an unsuccessful login despite a valid TCP session. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different proxy request origin issue, such as: The evidence includes URL category, authenticated user, requested host and explicit proxy policy disposition rather than a packet payload. It does not address the specific failure reported by the enterprise mail filtering gateway. The decisive acceptance condition for this case is: The case correctly records an unsuccessful login despite a valid TCP session.
B:That action belongs to a different patch management priorities issue, such as: A critical internet-facing service has an available security patch, but a maintenance spreadsheet lists updates by oldest ticket date only. It does not address the specific failure reported by the enterprise mail filtering gateway. The decisive acceptance condition for this case is: The case correctly records an unsuccessful login despite a valid TCP session.
C:That action belongs to a different cloud shared responsibility issue, such as: The SOC assumes the cloud provider manages all tenant account permissions and therefore leaves a storage service publicly accessible. It does not address the specific failure reported by the enterprise mail filtering gateway. The decisive acceptance condition for this case is: The case correctly records an unsuccessful login despite a valid TCP session.
Question 495
After the security monitoring architect at the telemedicine portal applies this approved action — Enable monitored host file-integrity rules and alert on unauthorized security configuration changes. — the original issue is revisited: A production workstation changes its protected login configuration but antivirus scans report no known malware signature. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- A safe file change produces an attributable host integrity event without disabling antivirus controls.
- The incident report links the failure to the diagnosed kernel component with corroborating crash artifacts.
- The score captures the requirement for a user action rather than an unattended exploit.
- The profile differentiates the anomalous session from the expected short-lived service calls.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Enable monitored host file-integrity rules and alert on unauthorized security configuration changes. 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 security monitoring architect at the telemedicine portal applies this approved action — Enable monitored host file-integrity rules and alert on unauthorized security configuration changes. — the original issue is revisited: A production workstation changes….
Incorrect Answers
B:This observation validates another os kernel and user mode issue and the corrective action Review kernel crash or driver evidence separately from user-mode application events before assigning root cause. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: A safe file change produces an attributable host integrity event without disabling antivirus controls.
C:This observation validates another cvss user interaction issue and the corrective action Mark user interaction according to the necessary victim action and document the observed click or open trigger. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: A safe file change produces an attributable host integrity event without disabling antivirus controls.
D:This observation validates another session duration outlier issue and the corrective action Profile connection duration and timing by application identity and investigate long-lived deviations. It cannot confirm the telemedicine portal control. Required evidence for the current investigation is: A safe file change produces an attributable host integrity event without disabling antivirus controls.
Question 496
After the SOC investigation lead at the industrial safety monitoring enclave applies this approved action — Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry. — the original issue is revisited: The SOC installs only endpoint malware scanners and misses lateral movement between unmonitored network appliances. 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.
- Routine queries no longer flood alerts and a controlled suspicious domain pattern is still reported.
- The event sequence aligns correctly across both logs and preserves original timestamps for audit.
- The copied image hash matches its original reference digest after transfer.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry. 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 investigation lead at the industrial safety monitoring enclave applies this approved action — Deploy an approved network sensor at the relevant routed segment and correlate its alerts with existing endpoint telemetry. — the original issue is revisited:….
Incorrect Answers
B:This observation validates another rule tuning false positives issue and the corrective action Scope the detection rule to observed anomalous query behavior rather than all DNS usage, retaining targeted alerts. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: A safe lateral-traffic test generates a network event while endpoint security controls remain enabled.
C:This observation validates another log timestamp normalization issue and the corrective action Normalize source timestamps to a common reference while retaining original timezone and clock-skew context. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: A safe lateral-traffic test generates a network event while endpoint security controls remain enabled.
D:This observation validates another evidence integrity hashing issue and the corrective action Compute and record approved cryptographic digests for the source and each evidence copy with handling metadata. It cannot confirm the industrial safety monitoring enclave control. Required evidence for the current investigation is: A safe lateral-traffic test generates a network event while endpoint security controls remain enabled.
Question 497
An incident at the retail fraud response desk is escalated to a incident commander after forensic evidence quality assessment reveals: A lab server needs to contact an approved package mirror but a blanket outbound allow also permits unknown remote-management destinations. Keep endpoint security enforcement active while collecting a reversible test observation. 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?
- Create scoped host egress rules for the needed package endpoint and reject unapproved destinations.
- Correlate authentication failures over source, account set and rolling time window with authorized traffic exclusions.
- Assign a read-only SOC analyst role and keep incident-response configuration changes under separately approved administrative roles.
- Attribute the record to application visibility and control processing rather than a simple port-only firewall.
Explanation
Correct Answer
A:This action addresses the host firewall outbound scope issue in the retail fraud response desk, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The package transfer works and a controlled attempt to the unapproved host is blocked. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
B:That action belongs to a different correlation-rule quality issue, such as: A SIEM alert fires on each individual failed login from a tester but misses a distributed password-spray pattern across users. It does not address the specific failure reported by the retail fraud response desk. The decisive acceptance condition for this case is: The package transfer works and a controlled attempt to the unapproved host is blocked.
C:That action belongs to a different role-based soc privileges issue, such as: A junior SOC analyst receives tenant-wide administrative access to view dashboards required for their job. It does not address the specific failure reported by the retail fraud response desk. The decisive acceptance condition for this case is: The package transfer works and a controlled attempt to the unapproved host is blocked.
D:That action belongs to a different application control policy issue, such as: A log reports a prohibited application signature with allow/block action despite using an ordinary HTTPS port. It does not address the specific failure reported by the retail fraud response desk. The decisive acceptance condition for this case is: The package transfer works and a controlled attempt to the unapproved host is blocked.
Question 498
An incident at the energy-sector security monitoring center is escalated to a host incident responder after incident-response triage reveals: An outbound mail server responds with an SMTP 550 recipient rejection, and the SOC labels it as a TLS connection failure. 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?
- Group alternatives within the intended event-field constraints and test with negative examples.
- Interpret SMTP response codes at the application layer separately from socket and TLS connection status.
- Aggregate approved flow records by endpoint, time, protocol, byte count and direction.
- Separate identity verification from privilege evaluation and retain tamper-resistant user action audit events.
Explanation
Correct Answer
B:This action addresses the smtp sequence reading issue in the energy-sector security monitoring center, matching the observed mechanism rather than a different threat or tool. The acceptance test must demonstrate: The log interpretation identifies recipient policy rejection rather than transport establishment failure. The relevant least-privilege and evidence-custody boundaries remain enforced.
Incorrect Answers
A:That action belongs to a different regex grouping alternation issue, such as: A detection rule intended to match either admin or root login errors allows root in unrelated log fields due to ungrouped alternation. It does not address the specific failure reported by the energy-sector security monitoring center. The decisive acceptance condition for this case is: The log interpretation identifies recipient policy rejection rather than transport establishment failure.
C:That action belongs to a different netflow session summary issue, such as: An analyst must establish which host transferred the largest volume to an unusual external address, but examining full packets violates capture scope. It does not address the specific failure reported by the energy-sector security monitoring center. The decisive acceptance condition for this case is: The log interpretation identifies recipient policy rejection rather than transport establishment failure.
D:That action belongs to a different authentication authorization accounting issue, such as: An internal gateway accepts an authenticated login and assumes it need not check authorization or retain a user action audit. It does not address the specific failure reported by the energy-sector security monitoring center. The decisive acceptance condition for this case is: The log interpretation identifies recipient policy rejection rather than transport establishment failure.
Question 499
After the SOC automation specialist at the travel reservation application applies this approved action — Scope the detection rule to observed anomalous query behavior rather than all DNS usage, retaining targeted alerts. — the original issue is revisited: An IDS rule alerts on every outbound DNS query from a sanctioned resolver and overwhelms investigation with expected traffic. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- Routine queries no longer flood alerts and a controlled suspicious domain pattern is still reported.
- Bidirectional test sessions can be reconstructed or the missing direction is explicitly identified.
- The event sequence aligns correctly across both logs and preserves original timestamps for audit.
- The incident record identifies the network IDS source without inventing endpoint execution telemetry.
Explanation
Correct Answer
A:This outcome is the direct verification of the approved action: Scope the detection rule to observed anomalous query behavior rather than all DNS usage, retaining targeted alerts. 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 asymmetric sensor placement issue and the corrective action Map both directional paths and adjust approved monitoring locations or correlate complementary sensors. It cannot confirm the travel reservation application control. Required evidence for the current investigation is: Routine queries no longer flood alerts and a controlled suspicious domain pattern is still reported.
C:This observation validates another log timestamp normalization issue and the corrective action Normalize source timestamps to a common reference while retaining original timezone and clock-skew context. It cannot confirm the travel reservation application control. Required evidence for the current investigation is: Routine queries no longer flood alerts and a controlled suspicious domain pattern is still reported.
D:This observation validates another ids signature source issue and the corrective action Attribute the event to the network IDS sensor and validate the signature with supporting packet or flow context. It cannot confirm the travel reservation application control. Required evidence for the current investigation is: Routine queries no longer flood alerts and a controlled suspicious domain pattern is still reported.
Question 500
After the network detection engineer at the hospital network incident team applies this approved action — Review SPAN capacity and packet-drop counters and use qualified capture hardware or alternate visibility when completeness is required. — the original issue is revisited: A switch monitor port is oversubscribed during a burst, and the SOC assumes that the mirror necessarily contains every transmitted packet. Which measured result is the strongest evidence that this specific control or investigation objective has been met?
- The triage queue reflects observed business impact and documents confidence in each verdict.
- A harmless approved test marker receives the expected alert with current definition timestamps.
- A signed-in read-only identity cannot perform the administrative action and its attempt is recorded.
- The analysis identifies capture loss under load and does not falsely certify a complete wire record.
Explanation
Correct Answer
D:This outcome is the direct verification of the approved action: Review SPAN capacity and packet-drop counters and use qualified capture hardware or alternate visibility when completeness is required. 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 network detection engineer at the hospital network incident team applies this approved action — Review SPAN capacity and packet-drop counters and use qualified capture hardware or alternate visibility when completeness is required. — the original issue is….
Incorrect Answers
A:This observation validates another impact versus severity issue and the corrective action Evaluate actual asset criticality, confirmed impact and exposure instead of using signature severity as the incident priority alone. It cannot confirm the hospital network incident team control. Required evidence for the current investigation is: The analysis identifies capture loss under load and does not falsely certify a complete wire record.
B:This observation validates another antivirus signature limitations issue and the corrective action Restore trusted signature update connectivity and verify the endpoint malware engine and protection status. It cannot confirm the hospital network incident team control. Required evidence for the current investigation is: The analysis identifies capture loss under load and does not falsely certify a complete wire record.
C:This observation validates another authentication authorization accounting issue and the corrective action Separate identity verification from privilege evaluation and retain tamper-resistant user action audit events. It cannot confirm the hospital network incident team control. Required evidence for the current investigation is: The analysis identifies capture loss under load and does not falsely certify a complete wire record.