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Cisco 300-715 Practice Test 66

Question 650

A security team believes endpoint tags prove a hardware identity without observing a protocol fingerprint. The observed failure is: Trusting self-reported friendly labels may lead to inappropriate device classification. How should the administrator correct and verify this failure?

  1. The supported recovery is to assign all labeled devices to administrator network access automatically.
  2. The supported recovery is to assume every human-entered endpoint name is a reliable vendor and device-type fingerprint.
  3. The supported recovery is to disable protocol probes because asset inventory includes a model field.
  4. The supported recovery is to restore protocol data collection and corroborate endpoint identity with multiple attributes.

Explanation

Correct Answer

D:

This restores the intended operational behavior for Profiling source evidence versus inventory labels. For the specific situation, a security team believes endpoint tags prove a hardware identity without observing a protocol fingerprint.

Incorrect Answers

A:

Assign all labeled devices to administrator network access automatically. This action does not repair the identified failure. Trusting self-reported friendly labels may lead to inappropriate device classification. Instead, restore protocol data collection and corroborate endpoint identity with multiple attributes. For the specific situation, a security team believes endpoint tags prove a hardware identity without observing a protocol fingerprint.

B:

Assume every human-entered endpoint name is a reliable vendor and device-type fingerprint. This action does not repair the identified failure. Trusting self-reported friendly labels may lead to inappropriate device classification. Instead, restore protocol data collection and corroborate endpoint identity with multiple attributes. For the specific situation, a security team believes endpoint tags prove a hardware identity without observing a protocol fingerprint.

C:

Disable protocol probes because asset inventory includes a model field. This action does not repair the identified failure. Trusting self-reported friendly labels may lead to inappropriate device classification. Instead, restore protocol data collection and corroborate endpoint identity with multiple attributes. For the specific situation, a security team believes endpoint tags prove a hardware identity without observing a protocol fingerprint.

Question 651

An IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor. Which configuration decision most directly satisfies the requirement?

  1. Assume the DHCP server name alone identifies a phone device.
  2. Enable and route supported DHCP profiling probe data including useful DHCP request options to ISE.
  3. Disable IP helper and expect ISE to receive every remote DHCP broadcast.
  4. Treat a MAC address as proof of an unchangeable endpoint platform.

Explanation

Correct Answer

B:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Incorrect Answers

A:

This does not implement the required control for DHCP probe endpoint fingerprinting.

C:

That option would disable IP helper and expect ISE to receive every remote DHCP broadcast, but it addresses a different concern. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe.

D:

A normal DHCP lease proves address assignment but not that ISE observed the profiling request. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Question 652

An IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor. What observations most directly test this network-access condition?

  1. A device hostname alone without the policy result or authenticated source.
  2. A current login screenshot from a completely unrelated ISE deployment.
  3. DHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.
  4. A browser theme label without a current authorization trace.

Explanation

Correct Answer

C:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. These observations directly establish the result of DHCP probe endpoint fingerprinting for the described endpoint or network device.

Incorrect Answers

A:

A device hostname alone without the policy result or authenticated source. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

B:

A current login screenshot from a completely unrelated ISE deployment. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

D:

A browser theme label without a current authorization trace. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Question 653

An IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor. What principle of ISE authentication and authorization explains this case?

  1. A successful switch port link signal always proves the device identity and policy were verified.
  2. All Cisco ISE administration and policy personas perform exactly the same service.
  3. A policy display name alone is the complete source of enforcement state.
  4. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe.

Explanation

Correct Answer

D:

The supported implementation is to enable and route supported DHCP profiling probe data including useful DHCP request options to ISE. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Incorrect Answers

A:

This generalization is not valid for DHCP probe endpoint fingerprinting. Instead dHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe.

B:

This generalization is not valid for DHCP probe endpoint fingerprinting. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

C:

This generalization is not valid for DHCP probe endpoint fingerprinting. Verify the actual state using dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.

Question 654

An IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor. An operator proposes the following incorrect shortcut: Assume the DHCP server name alone identifies a phone device. Which negative consequence BEST explains the shortcut’s flaw?

  1. A justified least-privilege ACL caused every unrelated network authentication fault.
  2. A correctly recorded TACACS command audit caused the preceding security violation.
  3. Reading the authentication event report caused the original network access outage.
  4. A normal DHCP lease proves address assignment but not that ISE observed the profiling request.

Explanation

Correct Answer

D:

The shortcut is unsuitable because dHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Incorrect Answers

A:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. The relevant risk is that a normal DHCP lease proves address assignment but not that ISE observed the profiling request.

B:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

C:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.

Question 655

An IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor. The observed failure is: A normal DHCP lease proves address assignment but not that ISE observed the profiling request. How should the administrator correct and verify this failure?

  1. Disable IP helper and expect ISE to receive every remote DHCP broadcast.
  2. Treat a MAC address as proof of an unchangeable endpoint platform.
  3. Assume the DHCP server name alone identifies a phone device.
  4. Repair DHCP probe reachability and verify captured option attributes and profile classification.

Explanation

Correct Answer

D:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. This restores the intended operational behavior for DHCP probe endpoint fingerprinting.

Incorrect Answers

A:

Disable IP helper and expect ISE to receive every remote DHCP broadcast. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

B:

Treat a MAC address as proof of an unchangeable endpoint platform. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

C:

Assume the DHCP server name alone identifies a phone device. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, an IP phone receives a DHCP lease but ISE has no DHCP option fingerprints because the request never reaches its profiling sensor.

Question 656

A remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes. Which administrator action is appropriate for this ISE access-control problem?

  1. In this case, disable IP helper and expect ISE to receive every remote DHCP broadcast.
  2. In this case, treat a MAC address as proof of an unchangeable endpoint platform.
  3. In this case, enable and route supported DHCP profiling probe data including useful DHCP request options to ISE.
  4. In this case, assume the DHCP server name alone identifies a phone device.

Explanation

Correct Answer

C:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

Incorrect Answers

A:

Disable IP helper and expect ISE to receive every remote DHCP broadcast. This alternative overlooks a required prerequisite or targets the wrong function. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. The relevant evidence is dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

B:

A normal DHCP lease proves address assignment but not that ISE observed the profiling request. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

D:

A normal DHCP lease proves address assignment but not that ISE observed the profiling request. This does not implement the required control for DHCP probe endpoint fingerprinting.

Question 657

A remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes. Which collected records establish that the ISE decision actually took effect?

  1. The supporting evidence is a switch interface description without any live AAA request or response.
  2. The supporting evidence is a device hostname alone without the policy result or authenticated source.
  3. The supporting evidence is dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.
  4. The supporting evidence is a current login screenshot from a completely unrelated ISE deployment.

Explanation

Correct Answer

C:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. DHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.

Incorrect Answers

A:

A switch interface description without any live AAA request or response. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

B:

A device hostname alone without the policy result or authenticated source. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

D:

A current login screenshot from a completely unrelated ISE deployment. This observation cannot verify DHCP probe endpoint fingerprinting. Check dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile. DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

Question 658

A remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes. Which statement about the relevant technology is correct?

  1. The governing principle is that dHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe.
  2. The governing principle is that a policy display name alone is the complete source of enforcement state.
  3. The governing principle is that a successful switch port link signal always proves the device identity and policy were verified.
  4. The governing principle is that every RADIUS Access-Accept grants unrestricted access to all applications.

Explanation

Correct Answer

A:

The supported implementation is to enable and route supported DHCP profiling probe data including useful DHCP request options to ISE. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

Incorrect Answers

B:

This generalization is not valid for DHCP probe endpoint fingerprinting. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

C:

This generalization is not valid for DHCP probe endpoint fingerprinting. A successful switch port link signal always proves the device identity and policy were verified.

D:

This generalization is not valid for DHCP probe endpoint fingerprinting. Every RADIUS Access-Accept grants unrestricted access to all applications.

Question 659

A remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes. An operator proposes the following incorrect shortcut: Assume the DHCP server name alone identifies a phone device. What specific security or operational failure should be anticipated?

  1. The material consequence is that reading the authentication event report caused the original network access outage.
  2. The material consequence is that the only result is an unrelated portal background color change.
  3. The material consequence is that a correctly recorded TACACS command audit caused the preceding security violation.
  4. The material consequence is that a normal DHCP lease proves address assignment but not that ISE observed the profiling request.

Explanation

Correct Answer

D:

The shortcut is unsuitable because dHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

Incorrect Answers

A:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

B:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. The only result is an unrelated portal background color change.

C:

This unrelated assertion does not explain the DHCP probe endpoint fingerprinting problem. A correctly recorded TACACS command audit caused the preceding security violation.

Question 660

A remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes. The observed failure is: A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Which remediation resolves the underlying fault while maintaining policy?

  1. The supported recovery is to treat a MAC address as proof of an unchangeable endpoint platform.
  2. The supported recovery is to repair DHCP probe reachability and verify captured option attributes and profile classification.
  3. The supported recovery is to assume the DHCP server name alone identifies a phone device.
  4. The supported recovery is to disable IP helper and expect ISE to receive every remote DHCP broadcast.

Explanation

Correct Answer

B:

DHCP option and vendor-class evidence can help profile endpoints when sensor traffic reaches the ISE probe. Recheck dHCP helper path, request option fields, ISE probe status, attribute timeline and endpoint profile.

Incorrect Answers

A:

Treat a MAC address as proof of an unchangeable endpoint platform. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

C:

Assume the DHCP server name alone identifies a phone device. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

D:

Disable IP helper and expect ISE to receive every remote DHCP broadcast. This action does not repair the identified failure. A normal DHCP lease proves address assignment but not that ISE observed the profiling request. Instead, repair DHCP probe reachability and verify captured option attributes and profile classification. For the specific situation, a remote VLAN relay uses an unexpected forwarding path and ISE cannot distinguish phone and desktop attributes.

Implementing and Configuring Cisco Identity Services Engine (300-715 SISE) (300-715) Practice Tests