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Certified Information Systems Security Professional CISSP Practice Test 52

Question 510

Management implemented a response after this event: A critical network sensor must observe suspected attacks without risking packet drops from immature signatures. The response was: Deploy detection-only monitoring until rules are validated for safe inline prevention. Which observed outcome BEST verifies that the intended security protection operates, rather than merely appearing in a plan?

  1. A harmless business packet is dropped by a new signature during a test.
  2. Malicious traffic triggers IDS alerts but analysts mistakenly report that the packets were blocked inline.
  3. No packet loss occurs because the detection system is turned off, and malicious probes generate no alerts.
  4. Attack traffic triggers alerts and valid business packets remain uninterrupted during tuning.

Explanation

Correct Answer

D:

Attack traffic triggers alerts and valid business packets remain uninterrupted during tuning. An IDS alerts; an IPS inline can block traffic and create availability risks when mistaken.

Incorrect Answers

A:

The unvalidated prevention rule is not safe for the critical network.

B:

Alerting evidence cannot establish a preventive outcome.

C:

Availability alone does not demonstrate monitored protection.

Question 511

A research honeypot designed to attract attackers has full access to the production domain controller. As the accountable security practitioner, which response BEST addresses the specific weakness without introducing a different untested control?

  1. Connect an intentionally vulnerable honeypot to the production domain controller so attackers can see real data.
  2. Isolate deception systems with controlled egress and monitoring before deployment.
  3. Give the honeypot unrestricted outbound internet and internal access with no containment policy.
  4. Assume a decoy’s research purpose exempts it from network segmentation and monitoring.

Explanation

Correct Answer

B:

Deception assets can become pivot points if compromised and interconnected with real systems. Attribution data collected by honeypots may still be unreliable without corroboration.

Incorrect Answers

A:

Compromised decoys can become privileged pivot routes into actual business systems.

C:

An attacker-controlled lure may be used for lateral movement or third-party harm.

D:

Deception assets require tighter, not looser, environmental controls.

Question 512

The organization implemented the response to this scenario: A research honeypot designed to attract attackers has full access to the production domain controller. The approved response was: Isolate deception systems with controlled egress and monitoring before deployment. Which statement MOST accurately identifies a remaining risk or constraint?

  1. A honeypot’s logs provide certain attribution to the real human attacker without corroboration.
  2. Attribution data collected by honeypots may still be unreliable without corroboration.
  3. A decoy cannot threaten production because it contains fictional data despite real trusted network access.
  4. A valid research authorization automatically allows a compromised decoy to attack unrelated external targets.

Explanation

Correct Answer

B:

Deception assets can become pivot points if compromised and interconnected with real systems. An attacker-controlled decoy cannot route or authenticate into production services.

Incorrect Answers

A:

Network intermediaries and deception may mislead source attribution.

C:

Its routing and credentials can expose genuine systems even if its content is fake.

D:

Experiment safety and egress containment remain necessary.

Question 513

Management implemented a response after this event: A research honeypot designed to attract attackers has full access to the production domain controller. The response was: Isolate deception systems with controlled egress and monitoring before deployment. Which observed outcome BEST verifies that the intended security protection operates, rather than merely appearing in a plan?

  1. A compromised test honeypot reaches the production domain controller over unrestricted routes.
  2. Decoy logs show attackers but their outbound sessions can scan third-party internet networks freely.
  3. An attacker-controlled decoy cannot route or authenticate into production services.
  4. The honeypot hosts fake files yet possesses production administrator credentials.

Explanation

Correct Answer

C:

An attacker-controlled decoy cannot route or authenticate into production services. Deception assets can become pivot points if compromised and interconnected with real systems.

Incorrect Answers

A:

The decoy is not isolated from critical assets.

B:

Unbounded egress is an operational risk, not controlled research.

D:

Synthetic content does not establish isolation of effective privileges.

Question 514

Critical vulnerabilities on exposed payment endpoints remain unpatched while lower-risk workstations get first attention. As the accountable security practitioner, which response BEST addresses the specific weakness without introducing a different untested control?

  1. Prioritize remediation using exploitation, exposure and business impact with measured remediation deadlines.
  2. Patch low-severity office workstations first because they are easiest to restart, leaving the exposed payment system exploitable.
  3. Rank patch requests only by vendor severity numbers without considering internet reachability or payment impact.
  4. Defer all mitigation of actively exploited payment endpoints until the ordinary annual maintenance window.

Explanation

Correct Answer

A:

Patch order must reflect real enterprise risk, not only numeric severity or asset counts. Emergency patching can create reliability regressions and needs controlled testing.

Incorrect Answers

B:

Remediation sequencing should reflect exploitation and business risk, not convenience.

C:

Context can materially change actual enterprise exposure.

D:

Active material exposure requires proportionate expedited treatment.

Question 515

The organization implemented the response to this scenario: Critical vulnerabilities on exposed payment endpoints remain unpatched while lower-risk workstations get first attention. The approved response was: Prioritize remediation using exploitation, exposure and business impact with measured remediation deadlines. Which statement MOST accurately identifies a remaining risk or constraint?

  1. An emergency patch can always be installed without availability or rollback considerations because the CVE is critical.
  2. Numerically low scanner findings are always less important even when a payment authorization bypass has been demonstrated.
  3. Emergency patching can create reliability regressions and needs controlled testing.
  4. Patching a vulnerable package immediately guarantees no alternative exploitation route remains.

Explanation

Correct Answer

C:

Patch order must reflect real enterprise risk, not only numeric severity or asset counts. The exposed exploited endpoint is mitigated within the approved risk window.

Incorrect Answers

A:

Urgent changes still need safety and reliability controls.

B:

Verified business exploitability can outweigh generic severity rankings.

D:

Remediation needs contextual validation and appropriate follow-up testing.

Question 516

Management implemented a response after this event: Critical vulnerabilities on exposed payment endpoints remain unpatched while lower-risk workstations get first attention. The response was: Prioritize remediation using exploitation, exposure and business impact with measured remediation deadlines. Which observed outcome BEST verifies that the intended security protection operates, rather than merely appearing in a plan?

  1. The patch completion percentage rises while the known exploited public payment endpoint remains vulnerable.
  2. The exposed exploited endpoint is mitigated within the approved risk window.
  3. An emergency deployment is recorded but no test confirms the payment exploit fails afterward.
  4. All internal low-impact machines are current while attackers still exploit the exposed critical asset.

Explanation

Correct Answer

B:

The exposed exploited endpoint is mitigated within the approved risk window. Patch order must reflect real enterprise risk, not only numeric severity or asset counts.

Incorrect Answers

A:

Activity metrics cannot show risk-prioritized remediation success.

C:

A patch record is not evidence of effective risk reduction.

D:

Fleet-wide averages can conceal the greatest business risk.

Question 517

A legacy server cannot be patched until a vendor maintenance event, but remote exploit traffic is actively observed. As the accountable security practitioner, which response BEST addresses the specific weakness without introducing a different untested control?

  1. Leave the legacy server openly reachable while waiting indefinitely for vendor firmware availability.
  2. Rely only on alerting dashboards that record exploit attempts without limiting the vulnerable server’s reachability.
  3. Declare a virtual patch permanent and cancel all underlying vendor remediation plans.
  4. Apply tested restrictive compensating network controls and schedule definitive remediation.

Explanation

Correct Answer

D:

Temporary virtual patching reduces reachable attack paths but does not remove the underlying flaw. Signature-based blocking can be bypassed and requires additional monitoring.

Incorrect Answers

A:

A known exploited path needs interim restrictive compensating controls.

B:

Detection without containment may leave active exposure unmitigated.

C:

A network block does not remove the software flaw.

Question 518

The organization implemented the response to this scenario: A legacy server cannot be patched until a vendor maintenance event, but remote exploit traffic is actively observed. The approved response was: Apply tested restrictive compensating network controls and schedule definitive remediation. Which statement MOST accurately identifies a remaining risk or constraint?

  1. Signature-based virtual patching cannot be bypassed or need tuning once deployed.
  2. An effective compensating firewall rule means the underlying vulnerability has been fixed in the application binary.
  3. A temporary virtual patch no longer requires a responsible owner or formal exception expiry.
  4. Signature-based blocking can be bypassed and requires additional monitoring.

Explanation

Correct Answer

D:

Temporary virtual patching reduces reachable attack paths but does not remove the underlying flaw. Known exploit probes are denied while business traffic remains available until patching.

Incorrect Answers

A:

Variants can evade signatures and controls need monitoring and eventual code repair.

B:

Network filtering reduces access paths, not defect existence.

C:

Compensating treatment should remain bounded and reviewed.

Question 519

Management implemented a response after this event: A legacy server cannot be patched until a vendor maintenance event, but remote exploit traffic is actively observed. The response was: Apply tested restrictive compensating network controls and schedule definitive remediation. Which observed outcome BEST verifies that the intended security protection operates, rather than merely appearing in a plan?

  1. A known exploit probe still reaches and compromises the server after a virtual-patch rule is enabled.
  2. Known exploit probes are denied while business traffic remains available until patching.
  3. Security logs show blocked packets but allowed business traffic has not been tested and now fails.
  4. The temporary rule blocks a single test while no patch milestone or ongoing bypass monitoring exists.

Explanation

Correct Answer

B:

Known exploit probes are denied while business traffic remains available until patching. Temporary virtual patching reduces reachable attack paths but does not remove the underlying flaw.

Incorrect Answers

A:

The immediate compensating path is ineffective.

C:

A mitigation that destroys essential availability does not meet the risk decision.

D:

One successful deny cannot establish a sustainable treatment plan.

Question 520

An emergency firewall fix is deployed without recorded approver, rollback or verification because the incident is urgent. As the accountable security practitioner, which response BEST addresses the specific weakness without introducing a different untested control?

  1. Apply urgent firewall changes directly with no accountable approver, rollback or postchange verification.
  2. Wait for the next normal monthly change board while an active exploit bypasses critical boundaries.
  3. Delete the emergency change record after service restoration to save administrative effort.
  4. Use an expedited authorized change path with impact, rollback and retrospective review.

Explanation

Correct Answer

D:

Emergency changes may accelerate approval but still require traceable governance. Retrospective approval must not become a loophole for routine unreviewed modifications.

Incorrect Answers

A:

An emergency allows expedited governance, not uncontrolled modification.

B:

Ordinary cadence may be too slow; a risk-approved emergency path is needed.

C:

Loss of the decision trail undermines accountability and lessons learned.

Certified Information Systems Security Professional (CISSP) Practice Tests

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