Cisco 300-715 Practice Test 38
Question 370
A role-based policy fails because the enforcement switch has no mapping for a source IP and SGT. The observed failure is: An absent source classification at enforcement can make a correct SGACL ineffective. How should the administrator correct and verify this failure?
- The supported recovery is to repair SXP mappings or inline propagation and verify source classification at the enforcing device.
- The supported recovery is to disable encryption everywhere because SXP peer is disconnected.
- The supported recovery is to assume unsupported switches transport inline SGT without configuration.
- The supported recovery is to use DNS TXT records as a replacement for SXP exchange.
Explanation
Correct Answer
A:SGT metadata can propagate inline where supported or through SXP mappings for compatible network segments. Recheck sXP peer state, IP-to-SGT mappings, inline tag counters and policy match at the destination.
Incorrect Answers
B:Disable encryption everywhere because SXP peer is disconnected. This action does not repair the identified failure. An absent source classification at enforcement can make a correct SGACL ineffective. Instead, repair SXP mappings or inline propagation and verify source classification at the enforcing device. For the specific situation, a role-based policy fails because the enforcement switch has no mapping for a source IP and SGT.
C:Assume unsupported switches transport inline SGT without configuration. This action does not repair the identified failure. An absent source classification at enforcement can make a correct SGACL ineffective. Instead, repair SXP mappings or inline propagation and verify source classification at the enforcing device. For the specific situation, a role-based policy fails because the enforcement switch has no mapping for a source IP and SGT.
D:Use DNS TXT records as a replacement for SXP exchange. This action does not repair the identified failure. An absent source classification at enforcement can make a correct SGACL ineffective. Instead, repair SXP mappings or inline propagation and verify source classification at the enforcing device. For the specific situation, a role-based policy fails because the enforcement switch has no mapping for a source IP and SGT.
Question 371
A security group membership changes but active wired sessions retain the old SGT or dACL. Which configuration decision most directly satisfies the requirement?
- Assume the network updates every active session without RADIUS or policy notification.
- Validate ISE policy distribution, SGT bindings and supported CoA or session refresh before declaring enforcement updated.
- Use a VLAN name change instead of inspecting the SGT mapping.
- Claim a successful ISE GUI save proves all downstream SGACLs were installed.
Explanation
Correct Answer
B:Verify the effect through updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Incorrect Answers
A:This does not implement the required control for TrustSec policy change and live session refresh. An updated ISE rule alone does not prove active network sessions changed authorization instantly.
C:Use a VLAN name change instead of inspecting the SGT mapping. This alternative overlooks a required prerequisite or targets the wrong function. Policy authoring, distribution and live session state are distinct parts of network access enforcement. The relevant evidence is updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
D:An updated ISE rule alone does not prove active network sessions changed authorization instantly. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Question 372
A security group membership changes but active wired sessions retain the old SGT or dACL. What observations most directly test this network-access condition?
- A successful ICMP echo that does not test the required identity-service workflow.
- Updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest.
- A browser theme label without a current authorization trace.
- An old diagram with no RADIUS, TACACS+ or endpoint-session evidence.
Explanation
Correct Answer
B:These observations directly establish the result of TrustSec policy change and live session refresh for the described endpoint or network device. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Incorrect Answers
A:A successful ICMP echo that does not test the required identity-service workflow. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
C:A browser theme label without a current authorization trace. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
D:An old diagram with no RADIUS, TACACS+ or endpoint-session evidence. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Question 373
A security group membership changes but active wired sessions retain the old SGT or dACL. What principle of ISE authentication and authorization explains this case?
- All Cisco ISE administration and policy personas perform exactly the same service.
- A captive portal page automatically changes network authorization on every active NAD session without signaling.
- Policy authoring, distribution and live session state are distinct parts of network access enforcement.
- A MAC address is a cryptographic proof of endpoint device ownership.
Explanation
Correct Answer
C:The supported implementation is to validate ISE policy distribution, SGT bindings and supported CoA or session refresh before declaring enforcement updated. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Incorrect Answers
A:This generalization is not valid for TrustSec policy change and live session refresh. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
B:This generalization is not valid for TrustSec policy change and live session refresh. Instead policy authoring, distribution and live session state are distinct parts of network access enforcement.
D:This generalization is not valid for TrustSec policy change and live session refresh. Verify the actual state using updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest.
Question 374
A security group membership changes but active wired sessions retain the old SGT or dACL. An operator proposes the following incorrect shortcut: Assume the network updates every active session without RADIUS or policy notification. Which negative consequence BEST explains the shortcut’s flaw?
- An updated ISE rule alone does not prove active network sessions changed authorization instantly.
- Accurate device accounting automatically created every earlier failed EAP exchange.
- Inspecting a correct endpoint certificate generated the original directory outage.
- A justified least-privilege ACL caused every unrelated network authentication fault.
Explanation
Correct Answer
A:The shortcut is unsuitable because policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Incorrect Answers
B:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. The relevant risk is that an updated ISE rule alone does not prove active network sessions changed authorization instantly.
C:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
D:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest.
Question 375
A security group membership changes but active wired sessions retain the old SGT or dACL. The observed failure is: An updated ISE rule alone does not prove active network sessions changed authorization instantly. How should the administrator correct and verify this failure?
- Use a VLAN name change instead of inspecting the SGT mapping.
- Claim a successful ISE GUI save proves all downstream SGACLs were installed.
- Assume the network updates every active session without RADIUS or policy notification.
- Repair distribution or session reauthorization and verify actual tag and SGACL behavior.
Explanation
Correct Answer
D:Recheck updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Incorrect Answers
A:Use a VLAN name change instead of inspecting the SGT mapping. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
B:Claim a successful ISE GUI save proves all downstream SGACLs were installed. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
C:Assume the network updates every active session without RADIUS or policy notification. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a security group membership changes but active wired sessions retain the old SGT or dACL.
Question 376
A newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy. Which administrator action is appropriate for this ISE access-control problem?
- In this case, use a VLAN name change instead of inspecting the SGT mapping.
- In this case, claim a successful ISE GUI save proves all downstream SGACLs were installed.
- In this case, validate ISE policy distribution, SGT bindings and supported CoA or session refresh before declaring enforcement updated.
- In this case, assume the network updates every active session without RADIUS or policy notification.
Explanation
Correct Answer
C:Verify the effect through updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Incorrect Answers
A:Use a VLAN name change instead of inspecting the SGT mapping. This alternative overlooks a required prerequisite or targets the wrong function. Policy authoring, distribution and live session state are distinct parts of network access enforcement. The relevant evidence is updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
B:An updated ISE rule alone does not prove active network sessions changed authorization instantly. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
D:This does not implement the required control for TrustSec policy change and live session refresh. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Question 377
A newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy. Which collected records establish that the ISE decision actually took effect?
- The supporting evidence is a device hostname alone without the policy result or authenticated source.
- The supporting evidence is a successful ICMP echo that does not test the required identity-service workflow.
- The supporting evidence is updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest.
- The supporting evidence is a browser theme label without a current authorization trace.
Explanation
Correct Answer
C:These observations directly establish the result of TrustSec policy change and live session refresh for the described endpoint or network device. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Incorrect Answers
A:A device hostname alone without the policy result or authenticated source. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
B:A successful ICMP echo that does not test the required identity-service workflow. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
D:A browser theme label without a current authorization trace. This observation cannot verify TrustSec policy change and live session refresh. Check updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. Policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Question 378
A newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy. Which statement about the relevant technology is correct?
- The governing principle is that policy authoring, distribution and live session state are distinct parts of network access enforcement.
- The governing principle is that a MAC address is a cryptographic proof of endpoint device ownership.
- The governing principle is that all Cisco ISE administration and policy personas perform exactly the same service.
- The governing principle is that a policy display name alone is the complete source of enforcement state.
Explanation
Correct Answer
A:The supported implementation is to validate ISE policy distribution, SGT bindings and supported CoA or session refresh before declaring enforcement updated. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Incorrect Answers
B:This generalization is not valid for TrustSec policy change and live session refresh. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
C:This generalization is not valid for TrustSec policy change and live session refresh. All Cisco ISE administration and policy personas perform exactly the same service.
D:This generalization is not valid for TrustSec policy change and live session refresh. A policy display name alone is the complete source of enforcement state.
Question 379
A newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy. An operator proposes the following incorrect shortcut: Assume the network updates every active session without RADIUS or policy notification. What specific security or operational failure should be anticipated?
- The material consequence is that a justified least-privilege ACL caused every unrelated network authentication fault.
- The material consequence is that an updated ISE rule alone does not prove active network sessions changed authorization instantly.
- The material consequence is that a correctly recorded TACACS command audit caused the preceding security violation.
- The material consequence is that inspecting a correct endpoint certificate generated the original directory outage.
Explanation
Correct Answer
B:The shortcut is unsuitable because policy authoring, distribution and live session state are distinct parts of network access enforcement. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Incorrect Answers
A:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
C:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. A correctly recorded TACACS command audit caused the preceding security violation.
D:This unrelated assertion does not explain the TrustSec policy change and live session refresh problem. Inspecting a correct endpoint certificate generated the original directory outage.
Question 380
A newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy. The observed failure is: An updated ISE rule alone does not prove active network sessions changed authorization instantly. Which remediation resolves the underlying fault while maintaining policy?
- The supported recovery is to claim a successful ISE GUI save proves all downstream SGACLs were installed.
- The supported recovery is to assume the network updates every active session without RADIUS or policy notification.
- The supported recovery is to repair distribution or session reauthorization and verify actual tag and SGACL behavior.
- The supported recovery is to use a VLAN name change instead of inspecting the SGT mapping.
Explanation
Correct Answer
C:Recheck updated ISE policy, switch SGT table, enforcement matrix version, CoA result and traffic retest. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
Incorrect Answers
A:Claim a successful ISE GUI save proves all downstream SGACLs were installed. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
B:Assume the network updates every active session without RADIUS or policy notification. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.
D:Use a VLAN name change instead of inspecting the SGT mapping. This action does not repair the identified failure. An updated ISE rule alone does not prove active network sessions changed authorization instantly. Instead, repair distribution or session reauthorization and verify actual tag and SGACL behavior. For the specific situation, a newly restrictive SGACL matrix entry is not observed on downstream switches that have not refreshed policy.