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Cisco 300-715 Practice Test 85

Question 840

A personal laptop receives a certificate with no suitable client authentication purpose and subsequent EAP-TLS fails. The observed failure is: An unusable or untrusted enrollment certificate can block the final strong-authentication connection. Which controlled recovery BEST restores the intended state?

  1. The supported recovery is to skip issuer trust because the employee successfully logged into the portal.
  2. The supported recovery is to publish the CA private key to employees to simplify issuance.
  3. The supported recovery is to issue generic web-server-only certificates as every device client credential.
  4. The supported recovery is to repair issuing prerequisites and reissue a suitable certificate then test EAP-TLS login.

Explanation

Correct Answer

D:

BYOD client certificates require a working trusted issuing service and suitable identity attributes for EAP-TLS. Recheck internal CA service status, issued certificate profile, EKU, subject identity and enrollment error.

Incorrect Answers

A:

Skip issuer trust because the employee successfully logged into the portal. This action does not repair the identified failure. An unusable or untrusted enrollment certificate can block the final strong-authentication connection. Instead, repair issuing prerequisites and reissue a suitable certificate then test EAP-TLS login. For the specific situation, a personal laptop receives a certificate with no suitable client authentication purpose and subsequent EAP-TLS fails.

B:

Publish the CA private key to employees to simplify issuance. This action does not repair the identified failure. An unusable or untrusted enrollment certificate can block the final strong-authentication connection. Instead, repair issuing prerequisites and reissue a suitable certificate then test EAP-TLS login. For the specific situation, a personal laptop receives a certificate with no suitable client authentication purpose and subsequent EAP-TLS fails.

C:

Issue generic web-server-only certificates as every device client credential. This action does not repair the identified failure. An unusable or untrusted enrollment certificate can block the final strong-authentication connection. Instead, repair issuing prerequisites and reissue a suitable certificate then test EAP-TLS login. For the specific situation, a personal laptop receives a certificate with no suitable client authentication purpose and subsequent EAP-TLS fails.

Question 841

A personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal. What is the BEST supported ISE implementation or corrective action?

  1. Configure supported switch authentication and BYOD redirection followed by certificate-based authorization and CoA.
  2. Assume a switch port label alone launches the BYOD onboarding workflow.
  3. Block all portal DNS and HTTPS before authentication.
  4. Permit any unauthenticated wired client into the corporate database VLAN.

Explanation

Correct Answer

A:

Verify the effect through switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Incorrect Answers

B:

A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. This does not implement the required control for Wired switch BYOD redirect and certificate transition.

C:

Block all portal DNS and HTTPS before authentication. This alternative overlooks a required prerequisite or targets the wrong function. Wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning. The relevant evidence is switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

D:

A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Question 842

A personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal. Which evidence BEST verifies the intended operational outcome?

  1. A switch interface description without any live AAA request or response.
  2. An old diagram with no RADIUS, TACACS+ or endpoint-session evidence.
  3. A current login screenshot from a completely unrelated ISE deployment.
  4. Switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL.

Explanation

Correct Answer

D:

These observations directly establish the result of Wired switch BYOD redirect and certificate transition for the described endpoint or network device. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Incorrect Answers

A:

This observation cannot verify Wired switch BYOD redirect and certificate transition. Wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning.

B:

This observation cannot verify Wired switch BYOD redirect and certificate transition. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

C:

This observation cannot verify Wired switch BYOD redirect and certificate transition. Check switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL.

Question 843

A personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal. Which technical principle BEST explains the required decision?

  1. A captive portal page automatically changes network authorization on every active NAD session without signaling.
  2. A successful switch port link signal always proves the device identity and policy were verified.
  3. Every RADIUS Access-Accept grants unrestricted access to all applications.
  4. Wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning.

Explanation

Correct Answer

D:

The supported implementation is to configure supported switch authentication and BYOD redirection followed by certificate-based authorization and CoA. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Incorrect Answers

A:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. Instead wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning.

B:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

C:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. Verify the actual state using switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL.

Question 844

A personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal. An operator proposes the following incorrect shortcut: Assume a switch port label alone launches the BYOD onboarding workflow. What material risk or failure follows from that shortcut?

  1. Reading the authentication event report caused the original network access outage.
  2. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy.
  3. The only result is an unrelated portal background color change.
  4. Accurate device accounting automatically created every earlier failed EAP exchange.

Explanation

Correct Answer

B:

The shortcut is unsuitable because wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Incorrect Answers

A:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. The relevant risk is that a missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy.

C:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

D:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. Check switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL.

Question 845

A personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal. The observed failure is: A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Which controlled recovery BEST restores the intended state?

  1. Block all portal DNS and HTTPS before authentication.
  2. Permit any unauthenticated wired client into the corporate database VLAN.
  3. Repair switch redirection or reauthorization and validate final access with an approved device.
  4. Assume a switch port label alone launches the BYOD onboarding workflow.

Explanation

Correct Answer

C:

Recheck switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Incorrect Answers

A:

Block all portal DNS and HTTPS before authentication. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

B:

Permit any unauthenticated wired client into the corporate database VLAN. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

D:

Assume a switch port label alone launches the BYOD onboarding workflow. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a personal laptop connects to a wired onboarding port but never reaches the supplicant setup portal.

Question 846

A campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL. Which configuration decision most directly satisfies the requirement?

  1. In this case, block all portal DNS and HTTPS before authentication.
  2. In this case, configure supported switch authentication and BYOD redirection followed by certificate-based authorization and CoA.
  3. In this case, permit any unauthenticated wired client into the corporate database VLAN.
  4. In this case, assume a switch port label alone launches the BYOD onboarding workflow.

Explanation

Correct Answer

B:

Verify the effect through switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

Incorrect Answers

A:

Block all portal DNS and HTTPS before authentication. This alternative overlooks a required prerequisite or targets the wrong function. Wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning. The relevant evidence is switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

C:

A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

D:

A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Use the supported approach: configure supported switch authentication and BYOD redirection followed by certificate-based authorization and CoA.

Question 847

A campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL. What observations most directly test this network-access condition?

  1. The supporting evidence is a successful ICMP echo that does not test the required identity-service workflow.
  2. The supporting evidence is a switch interface description without any live AAA request or response.
  3. The supporting evidence is switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL.
  4. The supporting evidence is an old diagram with no RADIUS, TACACS+ or endpoint-session evidence.

Explanation

Correct Answer

C:

These observations directly establish the result of Wired switch BYOD redirect and certificate transition for the described endpoint or network device. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

Incorrect Answers

A:

This observation cannot verify Wired switch BYOD redirect and certificate transition. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

B:

This observation cannot verify Wired switch BYOD redirect and certificate transition. A switch interface description without any live AAA request or response.

D:

This observation cannot verify Wired switch BYOD redirect and certificate transition. An old diagram with no RADIUS, TACACS+ or endpoint-session evidence.

Question 848

A campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL. What principle of ISE authentication and authorization explains this case?

  1. The governing principle is that every RADIUS Access-Accept grants unrestricted access to all applications.
  2. The governing principle is that a captive portal page automatically changes network authorization on every active NAD session without signaling.
  3. The governing principle is that wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning.
  4. The governing principle is that a MAC address is a cryptographic proof of endpoint device ownership.

Explanation

Correct Answer

C:

The supported implementation is to configure supported switch authentication and BYOD redirection followed by certificate-based authorization and CoA. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

Incorrect Answers

A:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

B:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. A captive portal page automatically changes network authorization on every active NAD session without signaling.

D:

This generalization is not valid for Wired switch BYOD redirect and certificate transition. A MAC address is a cryptographic proof of endpoint device ownership.

Question 849

A campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL. An operator proposes the following incorrect shortcut: Assume a switch port label alone launches the BYOD onboarding workflow. Which negative consequence BEST explains the shortcut’s flaw?

  1. The material consequence is that accurate device accounting automatically created every earlier failed EAP exchange.
  2. The material consequence is that inspecting a correct endpoint certificate generated the original directory outage.
  3. The material consequence is that a missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy.
  4. The material consequence is that the only result is an unrelated portal background color change.

Explanation

Correct Answer

C:

The shortcut is unsuitable because wired BYOD requires cooperating switch access control, ISE portal and supplicant provisioning. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

Incorrect Answers

A:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

B:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. Inspecting a correct endpoint certificate generated the original directory outage.

D:

This unrelated assertion does not explain the Wired switch BYOD redirect and certificate transition problem. The only result is an unrelated portal background color change.

Question 850

A campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL. The observed failure is: A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. How should the administrator correct and verify this failure?

  1. The supported recovery is to permit any unauthenticated wired client into the corporate database VLAN.
  2. The supported recovery is to assume a switch port label alone launches the BYOD onboarding workflow.
  3. The supported recovery is to repair switch redirection or reauthorization and validate final access with an approved device.
  4. The supported recovery is to block all portal DNS and HTTPS before authentication.

Explanation

Correct Answer

C:

Recheck switch session, redirect ACL and URL, onboarding portal completion, EAP type and final dACL. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

Incorrect Answers

A:

Permit any unauthenticated wired client into the corporate database VLAN. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

B:

Assume a switch port label alone launches the BYOD onboarding workflow. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

D:

Block all portal DNS and HTTPS before authentication. This action does not repair the identified failure. A missing preauthentication route or authorization refresh can prevent the endpoint reaching its final policy. Instead, repair switch redirection or reauthorization and validate final access with an approved device. For the specific situation, a campus desktop receives a BYOD certificate but remains under a restricted pre-enrollment dACL.

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