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Cisco 350-701 Practice Test 17

Question 160

A third-party laptop passes a Duo push challenge yet lacks the mandatory trusted device status for confidential files. Which observed result BEST confirms that the security requirement is met?

  1. Users with acceptable identities and devices reach protected apps while stolen passwords or untrusted device states fail authorization.
  2. A riskier session receives a stronger verification or denial decision without blocking routine authorized access unnecessarily.
  3. Authorized managed endpoints join the intended network while expired, revoked, or untrusted device credentials receive restricted treatment.
  4. A supported supplicant joins the assigned network only after successful authentication and policy assignment.

Explanation

Correct Answer

A:

Users with acceptable identities and devices reach protected apps while stolen passwords or untrusted device states fail authorization. This is an observable acceptance condition, rather than an assumption that enabling a feature alone proves security. Multifactor authentication strengthens login assurance, while device trust and adaptive controls independently evaluate session risk. Situation: A third-party laptop passes a Duo push challenge yet lacks the mandatory trusted device status for confidential files.

Incorrect Answers

B:

A riskier session receives a stronger verification or denial decision without blocking routine authorized access unnecessarily. This outcome tests Duo Adaptive Access and SSO context and is not sufficient proof of the stated requirement. Here the relevant validation is: Users with acceptable identities and devices reach protected apps while stolen passwords or untrusted device states fail authorization. Situation: A third-party laptop passes a Duo push challenge yet lacks the mandatory trusted device status for confidential files.

C:

Authorized managed endpoints join the intended network while expired, revoked, or untrusted device credentials receive restricted treatment. This outcome tests Certificate identity and noncompliant access segregation and is not sufficient proof of the stated requirement. Here the relevant validation is: Users with acceptable identities and devices reach protected apps while stolen passwords or untrusted device states fail authorization. Situation: A third-party laptop passes a Duo push challenge yet lacks the mandatory trusted device status for confidential files.

D:

A supported supplicant joins the assigned network only after successful authentication and policy assignment. This outcome tests 802.1X port-based access with Cisco ISE and is not sufficient proof of the stated requirement. Here the relevant validation is: Users with acceptable identities and devices reach protected apps while stolen passwords or untrusted device states fail authorization. Situation: A third-party laptop passes a Duo push challenge yet lacks the mandatory trusted device status for confidential files.

Question 161

A remote security appliance sends detailed authentication logs over an unprotected management network. Which TWO complementary steps provide the most defensible remediation and its supporting assessment? Select TWO.

  1. Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction.
  2. Intended users receive the correct policy and connection failures can be attributed to a specific AAA stage.
  3. Collect and analyze flow-level metadata to identify communication patterns and suspicious volume while acknowledging payload visibility limits.
  4. Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters.
  5. Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions.

Explanation

Correct Answers

A:

Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. This control addresses the failure mechanism and narrows the enforcement boundary. Central logging loses forensic value when clocks disagree or records are dropped; authenticated time and secure logging improve evidence quality. Confirm pre-change conditions using: Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions. This is the implementation portion of the complementary pair. Situation: A remote security appliance sends detailed authentication logs over an unprotected management network.

E:

Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions. This checks the relevant condition before an engineer modifies production access or detection behavior. Central logging loses forensic value when clocks disagree or records are dropped; authenticated time and secure logging improve evidence quality. The controlled response would be: Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. This supplies the diagnostic evidence needed for the complementary action. Situation: A remote security appliance sends detailed authentication logs over an unprotected management network.

Incorrect Answers

B:

Intended users receive the correct policy and connection failures can be attributed to a specific AAA stage. This step could matter for RADIUS network access troubleshooting but is not part of the required complementary pair for this case. The paired steps are: Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. and Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions. Situation: A remote security appliance sends detailed authentication logs over an unprotected management network.

C:

Collect and analyze flow-level metadata to identify communication patterns and suspicious volume while acknowledging payload visibility limits. This step could matter for NetFlow and telemetry flow analysis but is not part of the required complementary pair for this case. The paired steps are: Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. and Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions. Situation: A remote security appliance sends detailed authentication logs over an unprotected management network.

D:

Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. This step could matter for Inline IPS availability and bypass behavior but is not part of the required complementary pair for this case. The paired steps are: Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. and Review syslog destinations, transport security, facility and severity filters, log loss, NTP synchronization, and collector permissions. Situation: A remote security appliance sends detailed authentication logs over an unprotected management network.

Question 162

An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy. Which TWO complementary steps provide the most defensible remediation and its supporting assessment? Select TWO.

  1. Correlate unusual encrypted uploads and sanctioned cloud-service use with identity, DLP, destination, and endpoint telemetry.
  2. Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment.
  3. Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process.
  4. A supported supplicant joins the assigned network only after successful authentication and policy assignment.
  5. Inspect DHCP and RADIUS attributes, device profile confidence, endpoint groups, 802.1X support, and allowed fallback policies.

Explanation

Correct Answers

B:

Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment. This control addresses the failure mechanism and narrows the enforcement boundary. DNS is a name-resolution protocol but can carry encoded data in labels or answers; unusual queries require contextual analysis to avoid false positives. Confirm pre-change conditions using: Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process. This is the implementation portion of the complementary pair. Situation: An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy.

C:

Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process. This checks the relevant condition before an engineer modifies production access or detection behavior. DNS is a name-resolution protocol but can carry encoded data in labels or answers; unusual queries require contextual analysis to avoid false positives. The controlled response would be: Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment. This supplies the diagnostic evidence needed for the complementary action. Situation: An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy.

Incorrect Answers

A:

Correlate unusual encrypted uploads and sanctioned cloud-service use with identity, DLP, destination, and endpoint telemetry. This step could matter for HTTPS and cloud-storage exfiltration containment but is not part of the required complementary pair for this case. The paired steps are: Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment. and Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process. Situation: An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy.

D:

A supported supplicant joins the assigned network only after successful authentication and policy assignment. This step could matter for 802.1X port-based access with Cisco ISE but is not part of the required complementary pair for this case. The paired steps are: Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment. and Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process. Situation: An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy.

E:

Inspect DHCP and RADIUS attributes, device profile confidence, endpoint groups, 802.1X support, and allowed fallback policies. This step could matter for Cisco ISE profiling and endpoint identity certainty but is not part of the required complementary pair for this case. The paired steps are: Identify suspicious DNS-based data movement using query entropy, length, volume, domain ownership, and endpoint context before containment. and Inspect queried subdomain patterns, TXT requests, query response rates, domain age, and originating host process. Situation: An internal host transmits repeated DNS TXT requests to an unauthorized resolver outside corporate DNS policy.

Question 163

A contractor's VPN group policy still grants privileged internal segments after her project role is reduced. Before changing security policy, what evidence should the engineer examine FIRST?

  1. Inspect group policy selection, identity provider/RADIUS logs, VPN address pool, route list, certificate profile, and access-control logs.
  2. Inspect peer public addresses, IKE/IPsec proposals, NAT treatment, interesting traffic, and security association counters.
  3. Inspect endpoint identity assignments, VLAN membership, SGT propagation, trustsec matrix rules, and routed reachability.
  4. Inspect source and destination zone matching, network objects, application identification, default action, policy order, and hit counts.

Explanation

Correct Answer

A:

Inspect group policy selection, identity provider/RADIUS logs, VPN address pool, route list, certificate profile, and access-control logs. This checks the relevant condition before an engineer modifies production access or detection behavior. Remote client tunnel success, user authentication, and authorized application reachability are distinct troubleshooting checkpoints. The controlled response would be: Configure Cisco Secure Client remote access to FTD with supported authentication, client profile, access restrictions, and split tunnel settings. Situation: A contractor's VPN group policy still grants privileged internal segments after her project role is reduced.

Incorrect Answers

B:

Inspect peer public addresses, IKE/IPsec proposals, NAT treatment, interesting traffic, and security association counters. This evidence addresses FTD site-to-site VPN crypto policy; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect group policy selection, identity provider/RADIUS logs, VPN address pool, route list, certificate profile, and access-control logs. Situation: A contractor's VPN group policy still grants privileged internal segments after her project role is reduced.

C:

Inspect endpoint identity assignments, VLAN membership, SGT propagation, trustsec matrix rules, and routed reachability. This evidence addresses VLAN segmentation and SGT policy; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect group policy selection, identity provider/RADIUS logs, VPN address pool, route list, certificate profile, and access-control logs. Situation: A contractor's VPN group policy still grants privileged internal segments after her project role is reduced.

D:

Inspect source and destination zone matching, network objects, application identification, default action, policy order, and hit counts. This evidence addresses FTD access control rule ordering; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect group policy selection, identity provider/RADIUS logs, VPN address pool, route list, certificate profile, and access-control logs. Situation: A contractor's VPN group policy still grants privileged internal segments after her project role is reduced.

Question 164

A user connects two wall sockets through a cheap unmanaged switch and a broadcast storm spreads across the floor. Which observed result BEST confirms that the security requirement is met?

  1. A finance user reaches approved systems while guest traffic cannot cross the group policy boundary despite sharing switching infrastructure.
  2. An unauthorized small switch cannot flood excessive MAC identities or form an unintended Layer 2 loop without detection.
  3. Approved branch traffic traverses the encrypted tunnel and response packets return through the selected protected path.
  4. Unapproved categories or applications are denied while required business services match the intended allow criteria.

Explanation

Correct Answer

B:

An unauthorized small switch cannot flood excessive MAC identities or form an unintended Layer 2 loop without detection. This is an observable acceptance condition, rather than an assumption that enabling a feature alone proves security. Port security limits learned MAC identities and BPDU guard helps protect intended edge ports; storm control limits damaging broadcast or multicast spikes. Situation: A user connects two wall sockets through a cheap unmanaged switch and a broadcast storm spreads across the floor.

Incorrect Answers

A:

A finance user reaches approved systems while guest traffic cannot cross the group policy boundary despite sharing switching infrastructure. This outcome tests VLAN segmentation and SGT policy and is not sufficient proof of the stated requirement. Here the relevant validation is: An unauthorized small switch cannot flood excessive MAC identities or form an unintended Layer 2 loop without detection. Situation: A user connects two wall sockets through a cheap unmanaged switch and a broadcast storm spreads across the floor.

C:

Approved branch traffic traverses the encrypted tunnel and response packets return through the selected protected path. This outcome tests FTD site-to-site VPN crypto policy and is not sufficient proof of the stated requirement. Here the relevant validation is: An unauthorized small switch cannot flood excessive MAC identities or form an unintended Layer 2 loop without detection. Situation: A user connects two wall sockets through a cheap unmanaged switch and a broadcast storm spreads across the floor.

D:

Unapproved categories or applications are denied while required business services match the intended allow criteria. This outcome tests Application visibility control and URL filtering and is not sufficient proof of the stated requirement. Here the relevant validation is: An unauthorized small switch cannot flood excessive MAC identities or form an unintended Layer 2 loop without detection. Situation: A user connects two wall sockets through a cheap unmanaged switch and a broadcast storm spreads across the floor.

Question 165

A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours. Which TWO complementary steps provide the most defensible remediation and its supporting assessment? Select TWO.

  1. Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement.
  2. Review device count, policy commonality, deployment permissions, management channel resilience, and drift records.
  3. Place appropriate firewall or distributed policy enforcement around both internet-facing flows and lateral workload communications.
  4. Supported appliances receive tracked approved policies through the chosen management plane without granting excessive console privilege.
  5. Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters.

Explanation

Correct Answers

A:

Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement. This control addresses the failure mechanism and narrows the enforcement boundary. Inline IPS can interrupt malicious traffic but insertion into a critical path requires planned high availability and transparent failure decisions. Confirm pre-change conditions using: Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. This is the implementation portion of the complementary pair. Situation: A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours.

E:

Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. This checks the relevant condition before an engineer modifies production access or detection behavior. Inline IPS can interrupt malicious traffic but insertion into a critical path requires planned high availability and transparent failure decisions. The controlled response would be: Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement. This supplies the diagnostic evidence needed for the complementary action. Situation: A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours.

Incorrect Answers

B:

Review device count, policy commonality, deployment permissions, management channel resilience, and drift records. This step could matter for Centralized firewall manager versus local control but is not part of the required complementary pair for this case. The paired steps are: Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement. and Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. Situation: A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours.

C:

Place appropriate firewall or distributed policy enforcement around both internet-facing flows and lateral workload communications. This step could matter for North south versus east west segmentation but is not part of the required complementary pair for this case. The paired steps are: Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement. and Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. Situation: A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours.

D:

Supported appliances receive tracked approved policies through the chosen management plane without granting excessive console privilege. This step could matter for Cisco Security Cloud Control management boundary but is not part of the required complementary pair for this case. The paired steps are: Choose a supported inline security deployment that matches failure-mode and uptime requirements while retaining explicit intrusion policy enforcement. and Review fail-open or fail-closed expectations, high-availability topology, interface mode, IPS rule state, and packet counters. Situation: A payment network needs an inline prevention device but cannot tolerate an unexpected single-point failure during business hours.

Question 166

A distributed security team wants one cloud management view for supported FTD devices across several small branches. Which Cisco security control or operational response BEST addresses the stated need?

  1. Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction.
  2. Configure FTD site-to-site VPN using compatible peer parameters, network selectors, identities, and routing/access rules, then verify both tunnel phases.
  3. Choose centralized multi-device policy management for fleets while preserving appropriate emergency access and approval workflows.
  4. Assess Cisco Security Cloud Control against on-prem management requirements, identity controls, connectivity, and approved cloud operations.

Explanation

Correct Answer

D:

Assess Cisco Security Cloud Control against on-prem management requirements, identity controls, connectivity, and approved cloud operations. This control addresses the failure mechanism and narrows the enforcement boundary. Cloud-managed network policy still requires per-device compatibility, secure enrollment, change governance, and management connectivity. Confirm pre-change conditions using: Inspect supported device inventory, tenant enrollment, API roles, internet management path, change evidence, and local fallback. Situation: A distributed security team wants one cloud management view for supported FTD devices across several small branches.

Incorrect Answers

A:

Forward security event logs over approved protected transport and synchronize clocks for reliable multi-device incident reconstruction. This response applies to Secure syslog and timestamp correlation, not the controlling requirement in this case. Central logging loses forensic value when clocks disagree or records are dropped; authenticated time and secure logging improve evidence quality. For this scenario, the targeted action is: Assess Cisco Security Cloud Control against on-prem management requirements, identity controls, connectivity, and approved cloud operations. Situation: A distributed security team wants one cloud management view for supported FTD devices across several small branches.

B:

Configure FTD site-to-site VPN using compatible peer parameters, network selectors, identities, and routing/access rules, then verify both tunnel phases. This response applies to FTD site-to-site VPN crypto policy, not the controlling requirement in this case. Successful VPN peer authentication does not prove application forwarding; selectors, route tables, NAT, and access policies also govern data traffic. For this scenario, the targeted action is: Assess Cisco Security Cloud Control against on-prem management requirements, identity controls, connectivity, and approved cloud operations. Situation: A distributed security team wants one cloud management view for supported FTD devices across several small branches.

C:

Choose centralized multi-device policy management for fleets while preserving appropriate emergency access and approval workflows. This response applies to Centralized firewall manager versus local control, not the controlling requirement in this case. Centralized managers help standardize multi-device policy, but management-plane availability and change authorization remain essential. For this scenario, the targeted action is: Assess Cisco Security Cloud Control against on-prem management requirements, identity controls, connectivity, and approved cloud operations. Situation: A distributed security team wants one cloud management view for supported FTD devices across several small branches.

Question 167

An Investigate lookup returns a suspicious domain on shared CDN IP addresses also used by approved services. Before changing security policy, what evidence should the engineer examine FIRST?

  1. Inspect domain risk score, lexical and behavior indicators, known security categorization, age, related infrastructure, and current business use.
  2. Inspect client connector state, network tunnel health, identity source, route exclusions, and effective access policy.
  3. Inspect observed resolver clients, domain pivots, domain categorization, timestamps, threat indicators, and access logs.
  4. Inspect AI application usage records, policy category, sensitive text classification, prompt upload paths, and employee roles.

Explanation

Correct Answer

C:

Inspect observed resolver clients, domain pivots, domain categorization, timestamps, threat indicators, and access logs. This checks the relevant condition before an engineer modifies production access or detection behavior. Domain attribution may involve shared infrastructure and dynamic resolution; a risky domain does not imply every neighbor on the IP is malicious. The controlled response would be: Correlate Investigate domain information with DNS activity, source endpoint, time range, and threat intelligence before escalating. Situation: An Investigate lookup returns a suspicious domain on shared CDN IP addresses also used by approved services.

Incorrect Answers

A:

Inspect domain risk score, lexical and behavior indicators, known security categorization, age, related infrastructure, and current business use. This evidence addresses Investigate domain risk score interpretation; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect observed resolver clients, domain pivots, domain categorization, timestamps, threat indicators, and access logs. Situation: An Investigate lookup returns a suspicious domain on shared CDN IP addresses also used by approved services.

B:

Inspect client connector state, network tunnel health, identity source, route exclusions, and effective access policy. This evidence addresses Remote identity and traffic steering in SSE; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect observed resolver clients, domain pivots, domain categorization, timestamps, threat indicators, and access logs. Situation: An Investigate lookup returns a suspicious domain on shared CDN IP addresses also used by approved services.

D:

Inspect AI application usage records, policy category, sensitive text classification, prompt upload paths, and employee roles. This evidence addresses AI application guardrails and shadow AI; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect observed resolver clients, domain pivots, domain categorization, timestamps, threat indicators, and access logs. Situation: An Investigate lookup returns a suspicious domain on shared CDN IP addresses also used by approved services.

Question 168

A logged-in user is lured to a page that silently submits a change-email form to an internal portal. Which Cisco security control or operational response BEST addresses the stated need?

  1. Prevent SQL injection by separating untrusted field values from query structure using parameter binding and constrained database privileges.
  2. Validate peer identity with a trusted certificate chain, correct hostname, certificate validity, and appropriate TLS policy before exchanging sensitive data.
  3. Apply context-aware output encoding, anti-CSRF protections, and correct cookie controls at the relevant trust boundary.
  4. Constrain compromised API credentials through scoped permissions, rotation, behavior alerts, and incident review rather than assuming encrypted transport prevents misuse.

Explanation

Correct Answer

C:

Apply context-aware output encoding, anti-CSRF protections, and correct cookie controls at the relevant trust boundary. This control addresses the failure mechanism and narrows the enforcement boundary. XSS executes attacker-controlled browser code, while CSRF tricks an authenticated browser into submitting unintended operations; their mitigations differ. Confirm pre-change conditions using: Inspect browser rendering contexts, state-changing HTTP endpoints, session cookie attributes, and request verification tokens. Situation: A logged-in user is lured to a page that silently submits a change-email form to an internal portal.

Incorrect Answers

A:

Prevent SQL injection by separating untrusted field values from query structure using parameter binding and constrained database privileges. This response applies to SQL injection and parameterized queries, not the controlling requirement in this case. SQL injection exploits code/data confusion; input sanitization alone is weaker than parameterization plus least privilege. For this scenario, the targeted action is: Apply context-aware output encoding, anti-CSRF protections, and correct cookie controls at the relevant trust boundary. Situation: A logged-in user is lured to a page that silently submits a change-email form to an internal portal.

B:

Validate peer identity with a trusted certificate chain, correct hostname, certificate validity, and appropriate TLS policy before exchanging sensitive data. This response applies to TLS certificate authentication and PKI, not the controlling requirement in this case. Encryption without authenticated identity does not rule out interception; certificates bind a public key to a verified name under a trust chain. For this scenario, the targeted action is: Apply context-aware output encoding, anti-CSRF protections, and correct cookie controls at the relevant trust boundary. Situation: A logged-in user is lured to a page that silently submits a change-email form to an internal portal.

D:

Constrain compromised API credentials through scoped permissions, rotation, behavior alerts, and incident review rather than assuming encrypted transport prevents misuse. This response applies to Cloud API breach and lateral movement, not the controlling requirement in this case. Encryption in transit protects a channel but does not limit an authorized-looking API request carrying a stolen bearer token. For this scenario, the targeted action is: Apply context-aware output encoding, anti-CSRF protections, and correct cookie controls at the relevant trust boundary. Situation: A logged-in user is lured to a page that silently submits a change-email form to an internal portal.

Question 169

Several staff receive a fake device-enrollment portal link hosted on a recently created domain. Which Cisco security control or operational response BEST addresses the stated need?

  1. Combine suspicious message reporting, web destination inspection, reputation controls, and user training with enforceable authentication policies.
  2. Verify payment or access-change requests through an independently established channel and enforce dual approval for high-impact changes.
  3. Use negotiated IKE/IPsec proposals with matching identities and selectors, and enable appropriate UDP encapsulation when NAT disrupts ESP carriage.
  4. Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures.

Explanation

Correct Answer

A:

Combine suspicious message reporting, web destination inspection, reputation controls, and user training with enforceable authentication policies. This control addresses the failure mechanism and narrows the enforcement boundary. A secure email channel and DNS/web controls reduce exposure but cannot certify that every newly registered domain is benign. Confirm pre-change conditions using: Inspect phishing URL redirects, domain registration context, email authentication outcomes, clicked-user telemetry, and current block rules. Situation: Several staff receive a fake device-enrollment portal link hosted on a recently created domain.

Incorrect Answers

B:

Verify payment or access-change requests through an independently established channel and enforce dual approval for high-impact changes. This response applies to Business email compromise verification, not the controlling requirement in this case. A convincing display name or reply chain does not prove a sender can authorize sensitive financial and access changes. For this scenario, the targeted action is: Combine suspicious message reporting, web destination inspection, reputation controls, and user training with enforceable authentication policies. Situation: Several staff receive a fake device-enrollment portal link hosted on a recently created domain.

C:

Use negotiated IKE/IPsec proposals with matching identities and selectors, and enable appropriate UDP encapsulation when NAT disrupts ESP carriage. This response applies to IPsec IKE and NAT traversal, not the controlling requirement in this case. NAT traversal commonly encapsulates ESP over UDP 4500; a successful IKE handshake alone does not prove data-plane IPsec traffic passes. For this scenario, the targeted action is: Combine suspicious message reporting, web destination inspection, reputation controls, and user training with enforceable authentication policies. Situation: Several staff receive a fake device-enrollment portal link hosted on a recently created domain.

D:

Call security appliance APIs with scoped tokens, supported methods, validated payloads, and explicit handling of HTTP failures. This response applies to Authenticated security API requests, not the controlling requirement in this case. A script's HTTP 200 response must be interpreted with its API contract; exceptions, authentication, and payload semantics need explicit checking. For this scenario, the targeted action is: Combine suspicious message reporting, web destination inspection, reputation controls, and user training with enforceable authentication policies. Situation: Several staff receive a fake device-enrollment portal link hosted on a recently created domain.

Question 170

A medical device uses MAB but receives an unrestricted production VLAN because a default authorization rule is too broad. Which Cisco security control or operational response BEST addresses the stated need?

  1. Use Cisco Duo SSO and Adaptive Access to apply policy based on user group, application sensitivity, location or risk, and device health where supported.
  2. Use MAC Authentication Bypass only for supported non-802.1X devices with restricted roles and inventory-backed policy.
  3. Separate employee, guest, and personally owned device onboarding through Cisco ISE identity and authorization policies matched to legitimate use.
  4. Configure network access device 802.1X to use Cisco ISE RADIUS decisions and verify supplicant, authenticator, and server roles.

Explanation

Correct Answer

B:

Use MAC Authentication Bypass only for supported non-802.1X devices with restricted roles and inventory-backed policy. This control addresses the failure mechanism and narrows the enforcement boundary. MAB relies on spoofable MAC identity and should be treated as lower-assurance admission, not an equivalent replacement for EAP-TLS. Confirm pre-change conditions using: Inspect known endpoint MAC registrations, profiling data, switch authentication order, RADIUS policy, and allowed destination flows. Situation: A medical device uses MAB but receives an unrestricted production VLAN because a default authorization rule is too broad.

Incorrect Answers

A:

Use Cisco Duo SSO and Adaptive Access to apply policy based on user group, application sensitivity, location or risk, and device health where supported. This response applies to Duo Adaptive Access and SSO context, not the controlling requirement in this case. Single sign-on simplifies authentication flow but does not mean every connected application should share identical authorization and risk policy. For this scenario, the targeted action is: Use MAC Authentication Bypass only for supported non-802.1X devices with restricted roles and inventory-backed policy. Situation: A medical device uses MAB but receives an unrestricted production VLAN because a default authorization rule is too broad.

C:

Separate employee, guest, and personally owned device onboarding through Cisco ISE identity and authorization policies matched to legitimate use. This response applies to Cisco ISE guest and BYOD identity policies, not the controlling requirement in this case. Guest access and BYOD onboarding are authorization workflows, not a grant of permanent trusted access merely because a device connects to Wi-Fi. For this scenario, the targeted action is: Use MAC Authentication Bypass only for supported non-802.1X devices with restricted roles and inventory-backed policy. Situation: A medical device uses MAB but receives an unrestricted production VLAN because a default authorization rule is too broad.

D:

Configure network access device 802.1X to use Cisco ISE RADIUS decisions and verify supplicant, authenticator, and server roles. This response applies to 802.1X port-based access with Cisco ISE, not the controlling requirement in this case. In 802.1X the endpoint supplicant communicates through an authenticator to a back-end authentication server; access policy follows AAA results. For this scenario, the targeted action is: Use MAC Authentication Bypass only for supported non-802.1X devices with restricted roles and inventory-backed policy. Situation: A medical device uses MAB but receives an unrestricted production VLAN because a default authorization rule is too broad.

Implementing and Operating Cisco Security Core Technologies (350-701) Practice Tests