ECCouncil 712-50 (EC-Council Certified CISO) Practice Test 42

Question 410

A defined malicious traffic pattern must be blocked at a controlled network choke point. What should the decision-maker choose?

  1. Network IDS
  2. Host-based intrusion detection
  3. Behavioral anomaly detection
  4. Inline IPS

Explanation

Correct Answer

D:

An IPS actively denies matching traffic but requires careful false-positive and availability tuning. By contrast, Behavioral anomaly detection is relevant when attackers use unusual lateral traffic that lacks a known malicious signature, not as a substitute for Inline IPS in this case.

Incorrect Answers

A:

An IDS observes traffic and alerts on recognized behaviors while remaining nonblocking; the alternative concern is that operations require visibility into suspicious network traffic without automatically interrupting it, but the tested need stems from the fact that a defined malicious traffic pattern must be blocked at a controlled network choke point.

B:

Host monitoring observes local execution and integrity changes unavailable to network-only sensors; such an effect addresses a situation where a critical server's file and process activity must be monitored even when traffic is encrypted rather than the situation where a defined malicious traffic pattern must be blocked at a controlled network choke point.

C:

Anomaly analysis compares activity with expected behavior and can surface unknown patterns; the condition under which it applies is that attackers use unusual lateral traffic that lacks a known malicious signature, unlike the condition in the question, where a defined malicious traffic pattern must be blocked at a controlled network choke point.

Question 411

A critical server's file and process activity must be monitored even when traffic is encrypted. What action would satisfy this constraint most directly?

  1. Network IDS
  2. Host-based intrusion detection
  3. Detection coverage mapping
  4. Behavioral anomaly detection

Explanation

Correct Answer

B:

Host monitoring observes local execution and integrity changes unavailable to network-only sensors. By contrast, Detection coverage mapping is relevant when teams have many signatures but cannot link detections to important adversary techniques, not as a substitute for Host-based intrusion detection in this case.

Incorrect Answers

A:

An IDS observes traffic and alerts on recognized behaviors while remaining nonblocking; such an effect addresses a situation where operations require visibility into suspicious network traffic without automatically interrupting it rather than the situation where a critical server's file and process activity must be monitored even when traffic is encrypted.

C:

Coverage mapping relates rules, telemetry, and validation tests to plausible threat behavior; deploying it would matter if teams have many signatures but cannot link detections to important adversary techniques, but the deciding issue here is that a critical server's file and process activity must be monitored even when traffic is encrypted.

D:

Anomaly analysis compares activity with expected behavior and can surface unknown patterns; deploying it would matter if attackers use unusual lateral traffic that lacks a known malicious signature, but the deciding issue here is that a critical server's file and process activity must be monitored even when traffic is encrypted.

Question 412

The team needs efficient recognition of a previously characterized attack pattern. What approach should the accountable team prioritize?

  1. Detection coverage mapping
  2. Network IDS
  3. Inline IPS
  4. Signature detection

Explanation

Correct Answer

D:

Signatures match known indicators or rules but may miss new variants. By contrast, Network IDS is relevant when operations require visibility into suspicious network traffic without automatically interrupting it, not as a substitute for Signature detection in this case.

Incorrect Answers

A:

Coverage mapping relates rules, telemetry, and validation tests to plausible threat behavior; such an effect addresses a situation where teams have many signatures but cannot link detections to important adversary techniques rather than the situation where the team needs efficient recognition of a previously characterized attack pattern.

B:

An IDS observes traffic and alerts on recognized behaviors while remaining nonblocking; this provides its benefit when operations require visibility into suspicious network traffic without automatically interrupting it; the matter at hand is instead that the team needs efficient recognition of a previously characterized attack pattern.

C:

An IPS actively denies matching traffic but requires careful false-positive and availability tuning; such an effect addresses a situation where a defined malicious traffic pattern must be blocked at a controlled network choke point rather than the situation where the team needs efficient recognition of a previously characterized attack pattern.

Question 413

Attackers use unusual lateral traffic that lacks a known malicious signature. What is the best-targeted intervention?

  1. Sensor placement review
  2. Detection tuning
  3. Behavioral anomaly detection
  4. Signature detection

Explanation

Correct Answer

C:

Anomaly analysis compares activity with expected behavior and can surface unknown patterns. By contrast, Detection tuning is relevant when a new signature repeatedly blocks legitimate production sessions, not as a substitute for Behavioral anomaly detection in this case.

Incorrect Answers

A:

Placement analysis positions sensors at relevant visibility points and considers encryption or routing; this is pertinent when the SOC sees internet ingress but not lateral movement inside sensitive segments, in contrast with the actual gap where attackers use unusual lateral traffic that lacks a known malicious signature.

B:

Tuning adjusts thresholds and logic using verified cases without abandoning required detection outcomes; it would be a fit if a new signature repeatedly blocks legitimate production sessions, whereas the required response must deal with the fact that attackers use unusual lateral traffic that lacks a known malicious signature.

D:

Signatures match known indicators or rules but may miss new variants; that is relevant if the team needs efficient recognition of a previously characterized attack pattern, but it does not directly resolve the need arising when attackers use unusual lateral traffic that lacks a known malicious signature.

Question 414

A new signature repeatedly blocks legitimate production sessions. What should the decision-maker choose?

  1. Detection tuning
  2. Signature detection
  3. Host-based intrusion detection
  4. Behavioral anomaly detection
  5. Inline IPS

Explanation

Correct Answer

A:

Tuning adjusts thresholds and logic using verified cases without abandoning required detection outcomes. By contrast, Behavioral anomaly detection is relevant when attackers use unusual lateral traffic that lacks a known malicious signature, not as a substitute for Detection tuning in this case.

Incorrect Answers

B:

Signatures match known indicators or rules but may miss new variants; it helps when the team needs efficient recognition of a previously characterized attack pattern, whereas the present requirement arises because a new signature repeatedly blocks legitimate production sessions.

C:

Host monitoring observes local execution and integrity changes unavailable to network-only sensors; its proper use case is one in which a critical server's file and process activity must be monitored even when traffic is encrypted, not one in which a new signature repeatedly blocks legitimate production sessions.

D:

Anomaly analysis compares activity with expected behavior and can surface unknown patterns; this is pertinent when attackers use unusual lateral traffic that lacks a known malicious signature, in contrast with the actual gap where a new signature repeatedly blocks legitimate production sessions.

E:

An IPS actively denies matching traffic but requires careful false-positive and availability tuning; this is pertinent when a defined malicious traffic pattern must be blocked at a controlled network choke point, in contrast with the actual gap where a new signature repeatedly blocks legitimate production sessions.

Question 415

The SOC sees internet ingress but not lateral movement inside sensitive segments. What action would satisfy this constraint most directly?

  1. Sensor placement review
  2. Detection tuning
  3. Network IDS
  4. Inline IPS

Explanation

Correct Answer

A:

Placement analysis positions sensors at relevant visibility points and considers encryption or routing. By contrast, Network IDS is relevant when operations require visibility into suspicious network traffic without automatically interrupting it, not as a substitute for Sensor placement review in this case.

Incorrect Answers

B:

Tuning adjusts thresholds and logic using verified cases without abandoning required detection outcomes; this is pertinent when a new signature repeatedly blocks legitimate production sessions, in contrast with the actual gap where the SOC sees internet ingress but not lateral movement inside sensitive segments.

C:

An IDS observes traffic and alerts on recognized behaviors while remaining nonblocking; the condition for this measure is that operations require visibility into suspicious network traffic without automatically interrupting it, whereas the current question concerns a case where the SOC sees internet ingress but not lateral movement inside sensitive segments.

D:

An IPS actively denies matching traffic but requires careful false-positive and availability tuning; it would be a fit if a defined malicious traffic pattern must be blocked at a controlled network choke point, whereas the required response must deal with the fact that the SOC sees internet ingress but not lateral movement inside sensitive segments.

Question 416

Teams have many signatures but cannot link detections to important adversary techniques. What approach should the accountable team prioritize?

  1. Detection coverage mapping
  2. Signature detection
  3. Network IDS
  4. Host-based intrusion detection

Explanation

Correct Answer

A:

Coverage mapping relates rules, telemetry, and validation tests to plausible threat behavior. By contrast, Host-based intrusion detection is relevant when a critical server's file and process activity must be monitored even when traffic is encrypted, not as a substitute for Detection coverage mapping in this case.

Incorrect Answers

B:

Signatures match known indicators or rules but may miss new variants; the alternative concern is that the team needs efficient recognition of a previously characterized attack pattern, but the tested need stems from the fact that teams have many signatures but cannot link detections to important adversary techniques.

C:

An IDS observes traffic and alerts on recognized behaviors while remaining nonblocking; the alternative concern is that operations require visibility into suspicious network traffic without automatically interrupting it, but the tested need stems from the fact that teams have many signatures but cannot link detections to important adversary techniques.

D:

Host monitoring observes local execution and integrity changes unavailable to network-only sensors; such an effect addresses a situation where a critical server's file and process activity must be monitored even when traffic is encrypted rather than the situation where teams have many signatures but cannot link detections to important adversary techniques.

Question 417

An e-commerce operator is investigating protocol and infrastructure attack exposure. Users regularly resolve domains associated with known phishing and malware infrastructure. What action would satisfy this constraint most directly?

  1. Routing-protocol message authentication
  2. DDoS protection service
  3. Route filtering
  4. DNS filtering

Explanation

Correct Answer

D:

DNS controls block or warn on disallowed resolution requests while allowing reviewed exceptions. By contrast, Routing-protocol message authentication is relevant when an attacker on an adjacent network can inject forged dynamic-routing updates into an unprotected routing session, not as a substitute for DNS filtering in this case.

Incorrect Answers

A:

Authenticated routing updates restrict accepted protocol messages to peers holding the required session credentials, reducing unauthorized route injection; such an effect addresses a situation where an attacker on an adjacent network can inject forged dynamic-routing updates into an unprotected routing session rather than the situation where users regularly resolve domains associated with known phishing and malware infrastructure.

B:

Upstream mitigation absorbs or filters traffic before it saturates the organization's connection; its proper use case is one in which a public site experiences volumetric floods beyond its local internet capacity, not one in which users regularly resolve domains associated with known phishing and malware infrastructure.

C:

Route policy rejects unexpected prefixes and peers at controlled routing boundaries; that helps with the separate case where unauthorized network announcements might redirect or blackhole critical connectivity, not with the issue that users regularly resolve domains associated with known phishing and malware infrastructure.

Question 418

Users could receive forged DNS records despite using legitimate recursive resolvers. What approach should the accountable team prioritize?

  1. DNSSEC validation
  2. Route filtering
  3. DHCP snooping
  4. ARP inspection
  5. DDoS protection service
  6. Secure network device administration

Explanation

Correct Answer

A:

DNSSEC validates signed DNS data authenticity where deployed and correctly configured. By contrast, DDoS protection service is relevant when a public site experiences volumetric floods beyond its local internet capacity, not as a substitute for DNSSEC validation in this case.

Incorrect Answers

B:

Route policy rejects unexpected prefixes and peers at controlled routing boundaries; the condition under which it applies is that unauthorized network announcements might redirect or blackhole critical connectivity, unlike the condition in the question, where users could receive forged DNS records despite using legitimate recursive resolvers.

C:

DHCP snooping restricts server responses to trusted switch interfaces and builds binding information; that is relevant if a rogue device advertises malicious default gateways to office computers, but it does not directly resolve the need arising when users could receive forged DNS records despite using legitimate recursive resolvers.

D:

Dynamic ARP inspection validates local address mappings against trusted bindings on supported switches; such an effect addresses a situation where an attacker on the local network sends forged ARP mappings to intercept nearby traffic rather than the situation where users could receive forged DNS records despite using legitimate recursive resolvers.

E:

Upstream mitigation absorbs or filters traffic before it saturates the organization's connection; deploying it would matter if a public site experiences volumetric floods beyond its local internet capacity, but the deciding issue here is that users could receive forged DNS records despite using legitimate recursive resolvers.

F:

Encrypted authenticated management with restricted sources protects configuration access; it helps when routers are administered over plaintext management protocols from arbitrary hosts, whereas the present requirement arises because users could receive forged DNS records despite using legitimate recursive resolvers.

Question 419

A public site experiences volumetric floods beyond its local internet capacity. What is the best-targeted intervention?

  1. DDoS protection service
  2. Secure network device administration
  3. ARP inspection
  4. DNSSEC validation

Explanation

Correct Answer

A:

Upstream mitigation absorbs or filters traffic before it saturates the organization's connection. By contrast, DNSSEC validation is relevant when users could receive forged DNS records despite using legitimate recursive resolvers, not as a substitute for DDoS protection service in this case.

Incorrect Answers

B:

Encrypted authenticated management with restricted sources protects configuration access; the condition for this measure is that routers are administered over plaintext management protocols from arbitrary hosts, whereas the current question concerns a case where a public site experiences volumetric floods beyond its local internet capacity.

C:

Dynamic ARP inspection validates local address mappings against trusted bindings on supported switches; the condition for this measure is that an attacker on the local network sends forged ARP mappings to intercept nearby traffic, whereas the current question concerns a case where a public site experiences volumetric floods beyond its local internet capacity.

D:

DNSSEC validates signed DNS data authenticity where deployed and correctly configured; the condition for this measure is that users could receive forged DNS records despite using legitimate recursive resolvers, whereas the current question concerns a case where a public site experiences volumetric floods beyond its local internet capacity.

Question 420

A review identifies these two distinct gaps: (1) a public site experiences volumetric floods beyond its local internet capacity; (2) unauthorized network announcements might redirect or blackhole critical connectivity. Which TWO options directly satisfy these requirements? Choose TWO.

  1. DDoS protection service
  2. Route filtering
  3. Routing-protocol message authentication
  4. DNS filtering
  5. Secure network device administration
  6. DNSSEC validation

Explanation

Correct Answers

A:

For the requirement that a public site experiences volumetric floods beyond its local internet capacity, upstream mitigation absorbs or filters traffic before it saturates the organization's connection; Route filtering separately addresses the need that unauthorized network announcements might redirect or blackhole critical connectivity.

B:

For the requirement that unauthorized network announcements might redirect or blackhole critical connectivity, route policy rejects unexpected prefixes and peers at controlled routing boundaries; DDoS protection service separately addresses the need that a public site experiences volumetric floods beyond its local internet capacity.

Incorrect Answers

C:

Authenticated routing updates restrict accepted protocol messages to peers holding the required session credentials, reducing unauthorized route injection; it helps when an attacker on an adjacent network can inject forged dynamic-routing updates into an unprotected routing session, whereas the present requirement arises because a public site experiences volumetric floods beyond its local internet capacity; the other need in this item is that unauthorized network announcements might redirect or blackhole critical connectivity.

D:

DNS controls block or warn on disallowed resolution requests while allowing reviewed exceptions; it would be a fit if users regularly resolve domains associated with known phishing and malware infrastructure, whereas the required response must deal with the fact that a public site experiences volumetric floods beyond its local internet capacity; the other need in this item is that unauthorized network announcements might redirect or blackhole critical connectivity.

E:

Encrypted authenticated management with restricted sources protects configuration access; this is pertinent when routers are administered over plaintext management protocols from arbitrary hosts, in contrast with the actual gap where unauthorized network announcements might redirect or blackhole critical connectivity.

F:

DNSSEC validates signed DNS data authenticity where deployed and correctly configured; deploying it would matter if users could receive forged DNS records despite using legitimate recursive resolvers, but the deciding issue here is that unauthorized network announcements might redirect or blackhole critical connectivity.

EC-Council Certified CISO (712-50) Practice Tests