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Exam Code: JN0-650

Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)

Certification Provider: Juniper

Corresponding Certification: JNCIP-ENT

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Juniper JN0-650 Practice Test 60

Question 590

A Junos network engineer takes this step: Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported. Which outcome most directly follows?

  1. A backend outage does not automatically grant sensitive network access.
  2. A non-supplicant can receive limited network service without full corporate access.
  3. Authentication-server outages produce a defined access decision rather than unpredictable open access.
  4. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Explanation

Correct Answer

C:

This is the direct result of the RADIUS server unreachable decision: Authentication-server outages produce a defined access decision rather than unpredictable open access.

Incorrect Answers

A:

This outcome is associated with Server failure deny (Choose an explicit deny action for the supported server-fail fallback behavior.), not the specified action.

B:

This outcome is associated with Guest VLAN nonresponse (Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.), not the specified action.

D:

This outcome is associated with Rejected-user VLAN (Use the supported server-reject VLAN policy for failed responsive authentications.), not the specified action.

Question 591

An otherwise valid access user loses authentication when the only RADIUS server becomes unreachable during an outage. A colleague instead suggests: Use the supported server-reject VLAN policy for failed responsive authentications. Which corrective approach most directly addresses the original issue?

  1. Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.
  2. Use the supported server-reject VLAN policy for failed responsive authentications.
  3. Choose an explicit deny action for the supported server-fail fallback behavior.
  4. Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.

Explanation

Correct Answer

D:

This corrective choice addresses RADIUS server unreachable. Authentication-server outages produce a defined access decision rather than unpredictable open access.

Incorrect Answers

A:

That alternative applies to Guest VLAN nonresponse instead. A non-supplicant can receive limited network service without full corporate access.

B:

That alternative applies to Rejected-user VLAN instead. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

C:

That alternative applies to Server failure deny instead. A backend outage does not automatically grant sensitive network access.

Question 592

An enterprise network designer recommends: Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported. Which situation most clearly calls for this action?

  1. An otherwise valid access user loses authentication when the only RADIUS server becomes unreachable during an outage.
  2. A high-security port must deny all new sessions whenever RADIUS authorization cannot be obtained.
  3. A visitor's device sends no 802.1X EAP responses, no MAC RADIUS path is configured, and policy allows only isolated internet access.
  4. An EAP-capable user responds but supplies incorrect credentials and should be quarantined rather than treated as a guest.

Explanation

Correct Answer

A:

This case requires the RADIUS server unreachable action. Authentication-server outages produce a defined access decision rather than unpredictable open access.

Incorrect Answers

B:

This other case would be better matched to Choose an explicit deny action for the supported server-fail fallback behavior. A backend outage does not automatically grant sensitive network access.

C:

This other case would be better matched to Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy. A non-supplicant can receive limited network service without full corporate access.

D:

This other case would be better matched to Use the supported server-reject VLAN policy for failed responsive authentications. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Question 593

An EAP-capable user responds but supplies incorrect credentials and should be quarantined rather than treated as a guest. Which Junos networking action or protocol decision best addresses this requirement?

  1. Choose an explicit deny action for the supported server-fail fallback behavior.
  2. Use the supported server-reject VLAN policy for failed responsive authentications.
  3. Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.
  4. Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.

Explanation

Correct Answer

B:

This action addresses Rejected-user VLAN. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Incorrect Answers

A:

That action targets Server failure deny: A backend outage does not automatically grant sensitive network access. It does not directly resolve the stated Rejected-user VLAN requirement.

C:

That action targets Guest VLAN nonresponse: A non-supplicant can receive limited network service without full corporate access. It does not directly resolve the stated Rejected-user VLAN requirement.

D:

That action targets RADIUS server unreachable: Authentication-server outages produce a defined access decision rather than unpredictable open access. It does not directly resolve the stated Rejected-user VLAN requirement.

Question 594

A Junos network engineer takes this step: Use the supported server-reject VLAN policy for failed responsive authentications. Which outcome most directly follows?

  1. A non-supplicant can receive limited network service without full corporate access.
  2. A backend outage does not automatically grant sensitive network access.
  3. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.
  4. Authentication-server outages produce a defined access decision rather than unpredictable open access.

Explanation

Correct Answer

C:

This is the direct result of the Rejected-user VLAN decision: Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Incorrect Answers

A:

This outcome is associated with Guest VLAN nonresponse (Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.), not the specified action.

B:

This outcome is associated with Server failure deny (Choose an explicit deny action for the supported server-fail fallback behavior.), not the specified action.

D:

This outcome is associated with RADIUS server unreachable (Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.), not the specified action.

Question 595

An EAP-capable user responds but supplies incorrect credentials and should be quarantined rather than treated as a guest. A colleague instead suggests: Choose an explicit deny action for the supported server-fail fallback behavior. Which corrective approach most directly addresses the original issue?

  1. Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.
  2. Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.
  3. Choose an explicit deny action for the supported server-fail fallback behavior.
  4. Use the supported server-reject VLAN policy for failed responsive authentications.

Explanation

Correct Answer

D:

This corrective choice addresses Rejected-user VLAN. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Incorrect Answers

A:

That alternative applies to RADIUS server unreachable instead. Authentication-server outages produce a defined access decision rather than unpredictable open access.

B:

That alternative applies to Guest VLAN nonresponse instead. A non-supplicant can receive limited network service without full corporate access.

C:

That alternative applies to Server failure deny instead. A backend outage does not automatically grant sensitive network access.

Question 596

An enterprise network designer recommends: Use the supported server-reject VLAN policy for failed responsive authentications. Which situation most clearly calls for this action?

  1. An EAP-capable user responds but supplies incorrect credentials and should be quarantined rather than treated as a guest.
  2. A visitor's device sends no 802.1X EAP responses, no MAC RADIUS path is configured, and policy allows only isolated internet access.
  3. An otherwise valid access user loses authentication when the only RADIUS server becomes unreachable during an outage.
  4. A high-security port must deny all new sessions whenever RADIUS authorization cannot be obtained.

Explanation

Correct Answer

A:

This case requires the Rejected-user VLAN action. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

Incorrect Answers

B:

This other case would be better matched to Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy. A non-supplicant can receive limited network service without full corporate access.

C:

This other case would be better matched to Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported. Authentication-server outages produce a defined access decision rather than unpredictable open access.

D:

This other case would be better matched to Choose an explicit deny action for the supported server-fail fallback behavior. A backend outage does not automatically grant sensitive network access.

Question 597

A high-security port must deny all new sessions whenever RADIUS authorization cannot be obtained. Which Junos networking action or protocol decision best addresses this requirement?

  1. Use the supported server-reject VLAN policy for failed responsive authentications.
  2. Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.
  3. Choose an explicit deny action for the supported server-fail fallback behavior.
  4. Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.

Explanation

Correct Answer

C:

This action addresses Server failure deny. A backend outage does not automatically grant sensitive network access.

Incorrect Answers

A:

That action targets Rejected-user VLAN: Rejected credentials can cause restricted access distinct from silent guest VLAN behavior. It does not directly resolve the stated Server failure deny requirement.

B:

That action targets Guest VLAN nonresponse: A non-supplicant can receive limited network service without full corporate access. It does not directly resolve the stated Server failure deny requirement.

D:

That action targets RADIUS server unreachable: Authentication-server outages produce a defined access decision rather than unpredictable open access. It does not directly resolve the stated Server failure deny requirement.

Question 598

A Junos network engineer takes this step: Choose an explicit deny action for the supported server-fail fallback behavior. Which outcome most directly follows?

  1. Authentication-server outages produce a defined access decision rather than unpredictable open access.
  2. A non-supplicant can receive limited network service without full corporate access.
  3. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.
  4. A backend outage does not automatically grant sensitive network access.

Explanation

Correct Answer

D:

This is the direct result of the Server failure deny decision: A backend outage does not automatically grant sensitive network access.

Incorrect Answers

A:

This outcome is associated with RADIUS server unreachable (Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.), not the specified action.

B:

This outcome is associated with Guest VLAN nonresponse (Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.), not the specified action.

C:

This outcome is associated with Rejected-user VLAN (Use the supported server-reject VLAN policy for failed responsive authentications.), not the specified action.

Question 599

A high-security port must deny all new sessions whenever RADIUS authorization cannot be obtained. A colleague instead suggests: Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy. Which corrective approach most directly addresses the original issue?

  1. Choose an explicit deny action for the supported server-fail fallback behavior.
  2. Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported.
  3. Use the supported server-reject VLAN policy for failed responsive authentications.
  4. Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy.

Explanation

Correct Answer

A:

This corrective choice addresses Server failure deny. A backend outage does not automatically grant sensitive network access.

Incorrect Answers

B:

That alternative applies to RADIUS server unreachable instead. Authentication-server outages produce a defined access decision rather than unpredictable open access.

C:

That alternative applies to Rejected-user VLAN instead. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

D:

That alternative applies to Guest VLAN nonresponse instead. A non-supplicant can receive limited network service without full corporate access.

Question 600

An enterprise network designer recommends: Choose an explicit deny action for the supported server-fail fallback behavior. Which situation most clearly calls for this action?

  1. An EAP-capable user responds but supplies incorrect credentials and should be quarantined rather than treated as a guest.
  2. A high-security port must deny all new sessions whenever RADIUS authorization cannot be obtained.
  3. A visitor's device sends no 802.1X EAP responses, no MAC RADIUS path is configured, and policy allows only isolated internet access.
  4. An otherwise valid access user loses authentication when the only RADIUS server becomes unreachable during an outage.

Explanation

Correct Answer

B:

This case requires the Server failure deny action. A backend outage does not automatically grant sensitive network access.

Incorrect Answers

A:

This other case would be better matched to Use the supported server-reject VLAN policy for failed responsive authentications. Rejected credentials can cause restricted access distinct from silent guest VLAN behavior.

C:

This other case would be better matched to Assign the nonresponsive eligible client to a restricted guest VLAN under the supported access policy. A non-supplicant can receive limited network service without full corporate access.

D:

This other case would be better matched to Set a deliberate server-fail fallback policy such as a restricted server-fail VLAN where supported. Authentication-server outages produce a defined access decision rather than unpredictable open access.

Enterprise Routing and Switching, Professional (JNCIP-ENT) (JN0-650) Practice Tests