Cisco 300-715 Practice Test 74
Question 730
A network operator sends a reauthorization request when the device needs a new authentication exchange. The observed failure is: Applying a wrong CoA action can leave a disallowed client online or repeatedly flap an authorized port. How should the administrator correct and verify this failure?
- The supported recovery is to disable the switch authentication session feature to avoid CoA troubleshooting.
- The supported recovery is to assume a CoA notification always disconnects a client irrespective of message type.
- The supported recovery is to send the appropriate supported dynamic authorization event and verify resulting session and traffic state.
- The supported recovery is to use only a profiler rule name as a live session termination signal.
Explanation
Correct Answer
C:This restores the intended operational behavior for CoA disconnect versus reauthentication outcome. For the specific situation, a network operator sends a reauthorization request when the device needs a new authentication exchange.
Incorrect Answers
A:Disable the switch authentication session feature to avoid CoA troubleshooting. This action does not repair the identified failure. Applying a wrong CoA action can leave a disallowed client online or repeatedly flap an authorized port. Instead, send the appropriate supported dynamic authorization event and verify resulting session and traffic state. For the specific situation, a network operator sends a reauthorization request when the device needs a new authentication exchange.
B:Assume a CoA notification always disconnects a client irrespective of message type. This action does not repair the identified failure. Applying a wrong CoA action can leave a disallowed client online or repeatedly flap an authorized port. Instead, send the appropriate supported dynamic authorization event and verify resulting session and traffic state. For the specific situation, a network operator sends a reauthorization request when the device needs a new authentication exchange.
D:Use only a profiler rule name as a live session termination signal. This action does not repair the identified failure. Applying a wrong CoA action can leave a disallowed client online or repeatedly flap an authorized port. Instead, send the appropriate supported dynamic authorization event and verify resulting session and traffic state. For the specific situation, a network operator sends a reauthorization request when the device needs a new authentication exchange.
Question 731
A profiler rule oscillates between two categories and triggers repeated switch reauthentication. Which configuration decision most directly satisfies the requirement?
- Trigger CoA for every trivial endpoint metadata update regardless of policy significance.
- Disable all RADIUS accounting to hide repeated reauthentication.
- Stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes.
- Assume repeated link-down events prove stronger endpoint identity.
Explanation
Correct Answer
C:Verify the effect through endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Incorrect Answers
A:This does not implement the required control for CoA rate and session flapping controls. Unbounded classification changes can interrupt legitimate clients and overload policy service.
B:Disable all RADIUS accounting to hide repeated reauthentication. This alternative overlooks a required prerequisite or targets the wrong function. Profile instability can translate into disruptive authorization cycles when every change triggers CoA. The relevant evidence is endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
D:Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead the intended policy action is stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes.
Question 732
A profiler rule oscillates between two categories and triggers repeated switch reauthentication. What observations most directly test this network-access condition?
- A successful ICMP echo that does not test the required identity-service workflow.
- Endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence.
- 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 CoA rate and session flapping controls for the described endpoint or network device. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Incorrect Answers
A:This observation cannot verify CoA rate and session flapping controls. Profile instability can translate into disruptive authorization cycles when every change triggers CoA.
C:This observation cannot verify CoA rate and session flapping controls. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
D:This observation cannot verify CoA rate and session flapping controls. Check endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence.
Question 733
A profiler rule oscillates between two categories and triggers repeated switch reauthentication. 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.
- A MAC address is a cryptographic proof of endpoint device ownership.
- Profile instability can translate into disruptive authorization cycles when every change triggers CoA.
Explanation
Correct Answer
D:The supported implementation is to stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Incorrect Answers
A:This generalization is not valid for CoA rate and session flapping controls. Instead profile instability can translate into disruptive authorization cycles when every change triggers CoA.
B:This generalization is not valid for CoA rate and session flapping controls. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
C:This generalization is not valid for CoA rate and session flapping controls. Verify the actual state using endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence.
Question 734
A profiler rule oscillates between two categories and triggers repeated switch reauthentication. An operator proposes the following incorrect shortcut: Trigger CoA for every trivial endpoint metadata update regardless of policy significance. Which negative consequence BEST explains the shortcut’s flaw?
- 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.
- Unbounded classification changes can interrupt legitimate clients and overload policy service.
Explanation
Correct Answer
D:The shortcut is unsuitable because profile instability can translate into disruptive authorization cycles when every change triggers CoA. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Incorrect Answers
A:This unrelated assertion does not explain the CoA rate and session flapping controls problem. The relevant risk is that unbounded classification changes can interrupt legitimate clients and overload policy service.
B:This unrelated assertion does not explain the CoA rate and session flapping controls problem. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
C:This unrelated assertion does not explain the CoA rate and session flapping controls problem. Check endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence.
Question 735
A profiler rule oscillates between two categories and triggers repeated switch reauthentication. The observed failure is: Unbounded classification changes can interrupt legitimate clients and overload policy service. How should the administrator correct and verify this failure?
- Tune classification and monitor stable state and valid reauthorization after changes.
- Disable all RADIUS accounting to hide repeated reauthentication.
- Assume repeated link-down events prove stronger endpoint identity.
- Trigger CoA for every trivial endpoint metadata update regardless of policy significance.
Explanation
Correct Answer
A:Profile instability can translate into disruptive authorization cycles when every change triggers CoA. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Incorrect Answers
B:Disable all RADIUS accounting to hide repeated reauthentication. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
C:Assume repeated link-down events prove stronger endpoint identity. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
D:Trigger CoA for every trivial endpoint metadata update regardless of policy significance. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a profiler rule oscillates between two categories and triggers repeated switch reauthentication.
Question 736
A burst of device-profile changes floods a controller with dynamic authorization requests. Which administrator action is appropriate for this ISE access-control problem?
- In this case, disable all RADIUS accounting to hide repeated reauthentication.
- In this case, assume repeated link-down events prove stronger endpoint identity.
- In this case, trigger CoA for every trivial endpoint metadata update regardless of policy significance.
- In this case, stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes.
Explanation
Correct Answer
D:Verify the effect through endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
Incorrect Answers
A:Disable all RADIUS accounting to hide repeated reauthentication. This alternative overlooks a required prerequisite or targets the wrong function. Profile instability can translate into disruptive authorization cycles when every change triggers CoA. The relevant evidence is endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
B:Unbounded classification changes can interrupt legitimate clients and overload policy service. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
C:This does not implement the required control for CoA rate and session flapping controls. Use the supported approach: stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes.
Question 737
A burst of device-profile changes floods a controller with dynamic authorization requests. 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 endpoint classification history, repeated CoA timestamps, NAD session logs and probe evidence.
- The supporting evidence is a successful ICMP echo that does not test the required identity-service workflow.
- The supporting evidence is a browser theme label without a current authorization trace.
Explanation
Correct Answer
B:These observations directly establish the result of CoA rate and session flapping controls for the described endpoint or network device. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
Incorrect Answers
A:This observation cannot verify CoA rate and session flapping controls. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
C:This observation cannot verify CoA rate and session flapping controls. A successful ICMP echo that does not test the required identity-service workflow.
D:This observation cannot verify CoA rate and session flapping controls. A browser theme label without a current authorization trace.
Question 738
A burst of device-profile changes floods a controller with dynamic authorization requests. Which statement about the relevant technology is correct?
- 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.
- The governing principle is that profile instability can translate into disruptive authorization cycles when every change triggers CoA.
Explanation
Correct Answer
D:The supported implementation is to stabilize profiling decision criteria and limit unnecessary CoA actions while preserving required security changes. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
Incorrect Answers
A:This generalization is not valid for CoA rate and session flapping controls. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
B:This generalization is not valid for CoA rate and session flapping controls. All Cisco ISE administration and policy personas perform exactly the same service.
C:This generalization is not valid for CoA rate and session flapping controls. A policy display name alone is the complete source of enforcement state.
Question 739
A burst of device-profile changes floods a controller with dynamic authorization requests. An operator proposes the following incorrect shortcut: Trigger CoA for every trivial endpoint metadata update regardless of policy significance. What specific security or operational failure should be anticipated?
- The material consequence is that unbounded classification changes can interrupt legitimate clients and overload policy service.
- The material consequence is that a justified least-privilege ACL caused every unrelated network authentication fault.
- 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
A:The shortcut is unsuitable because profile instability can translate into disruptive authorization cycles when every change triggers CoA. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
Incorrect Answers
B:This unrelated assertion does not explain the CoA rate and session flapping controls problem. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
C:This unrelated assertion does not explain the CoA rate and session flapping controls problem. A correctly recorded TACACS command audit caused the preceding security violation.
D:This unrelated assertion does not explain the CoA rate and session flapping controls problem. Inspecting a correct endpoint certificate generated the original directory outage.
Question 740
A burst of device-profile changes floods a controller with dynamic authorization requests. The observed failure is: Unbounded classification changes can interrupt legitimate clients and overload policy service. Which remediation resolves the underlying fault while maintaining policy?
- The supported recovery is to assume repeated link-down events prove stronger endpoint identity.
- The supported recovery is to trigger CoA for every trivial endpoint metadata update regardless of policy significance.
- The supported recovery is to tune classification and monitor stable state and valid reauthorization after changes.
- The supported recovery is to disable all RADIUS accounting to hide repeated reauthentication.
Explanation
Correct Answer
C:Profile instability can translate into disruptive authorization cycles when every change triggers CoA. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
Incorrect Answers
A:Assume repeated link-down events prove stronger endpoint identity. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
B:Trigger CoA for every trivial endpoint metadata update regardless of policy significance. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
D:Disable all RADIUS accounting to hide repeated reauthentication. This action does not repair the identified failure. Unbounded classification changes can interrupt legitimate clients and overload policy service. Instead, tune classification and monitor stable state and valid reauthorization after changes. For the specific situation, a burst of device-profile changes floods a controller with dynamic authorization requests.
