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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 58

Question 570

A Junos network engineer takes this step: Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods. Which outcome most directly follows?

  1. The preferred authentication method is attempted according to the intended policy sequence.
  2. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.
  3. The successful authentication can apply the intended dynamic VLAN authorization.
  4. Browser users can complete the web-based admission process before receiving wider access.

Explanation

Correct Answer

A:

This is the direct result of the Authentication method order decision: The preferred authentication method is attempted according to the intended policy sequence.

Incorrect Answers

B:

This outcome is associated with Printer MAC RADIUS (Use MAC RADIUS authentication for the approved printer MAC on its switch interface.), not the specified action.

C:

This outcome is associated with RADIUS attributes (Correct the approved RADIUS VLAN authorization attributes and switch support for them.), not the specified action.

D:

This outcome is associated with Captive portal interactive login (Use a supported captive portal authentication workflow for the guest access design.), not the specified action.

Question 571

An endpoint supports 802.1X but the access switch processes only MAC RADIUS, contrary to the planned primary method. A colleague instead suggests: Correct the approved RADIUS VLAN authorization attributes and switch support for them. Which corrective approach most directly addresses the original issue?

  1. Use a supported captive portal authentication workflow for the guest access design.
  2. Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods.
  3. Use MAC RADIUS authentication for the approved printer MAC on its switch interface.
  4. Correct the approved RADIUS VLAN authorization attributes and switch support for them.

Explanation

Correct Answer

B:

This corrective choice addresses Authentication method order. The preferred authentication method is attempted according to the intended policy sequence.

Incorrect Answers

A:

That alternative applies to Captive portal interactive login instead. Browser users can complete the web-based admission process before receiving wider access.

C:

That alternative applies to Printer MAC RADIUS instead. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.

D:

That alternative applies to RADIUS attributes instead. The successful authentication can apply the intended dynamic VLAN authorization.

Question 572

An enterprise network designer recommends: Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods. Which situation most clearly calls for this action?

  1. Visitors use a web browser on the guest network and must accept terms or authenticate through a login page before unrestricted use.
  2. A RADIUS-authenticated switch user is authorized but lands in the wrong VLAN because the returned assignment attributes are misconfigured.
  3. An endpoint supports 802.1X but the access switch processes only MAC RADIUS, contrary to the planned primary method.
  4. A headless network printer cannot run an 802.1X supplicant but the access policy still requires server-mediated admission.

Explanation

Correct Answer

C:

This case requires the Authentication method order action. The preferred authentication method is attempted according to the intended policy sequence.

Incorrect Answers

A:

This other case would be better matched to Use a supported captive portal authentication workflow for the guest access design. Browser users can complete the web-based admission process before receiving wider access.

B:

This other case would be better matched to Correct the approved RADIUS VLAN authorization attributes and switch support for them. The successful authentication can apply the intended dynamic VLAN authorization.

D:

This other case would be better matched to Use MAC RADIUS authentication for the approved printer MAC on its switch interface. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.

Question 573

An Ethernet port serves a mix of domain computers and legacy devices that cannot respond to EAPOL. Which Junos networking action or protocol decision best addresses this requirement?

  1. Use a supported authentication-order design that tries 802.1X and then permitted MAC authentication where appropriate.
  2. Correct the authorized MAC RADIUS identity record after verifying the endpoint's true address.
  3. Inspect captive portal redirection, DNS reachability and HTTP/HTTPS interception policy.
  4. Recognize the spoofing limitations of MAC identity and use stronger 802.1X when possible.

Explanation

Correct Answer

A:

This action addresses 802.1X to MAC fallback. Legacy devices can follow a controlled alternative rather than bypassing all network admission checks.

Incorrect Answers

B:

That action targets MAC RADIUS entry mismatch: The switch's MAC-based request can match the expected authorized device record. It does not directly resolve the stated 802.1X to MAC fallback requirement.

C:

That action targets Captive portal redirect failure: The portal can become reachable for an unauthenticated browser session. It does not directly resolve the stated 802.1X to MAC fallback requirement.

D:

That action targets MAC spoofing limitation: The security design does not mistake a changeable hardware address for a cryptographic credential. It does not directly resolve the stated 802.1X to MAC fallback requirement.

Question 574

A Junos network engineer takes this step: Use a supported authentication-order design that tries 802.1X and then permitted MAC authentication where appropriate. Which outcome most directly follows?

  1. The portal can become reachable for an unauthenticated browser session.
  2. Legacy devices can follow a controlled alternative rather than bypassing all network admission checks.
  3. The security design does not mistake a changeable hardware address for a cryptographic credential.
  4. The switch's MAC-based request can match the expected authorized device record.

Explanation

Correct Answer

B:

This is the direct result of the 802.1X to MAC fallback decision: Legacy devices can follow a controlled alternative rather than bypassing all network admission checks.

Incorrect Answers

A:

This outcome is associated with Captive portal redirect failure (Inspect captive portal redirection, DNS reachability and HTTP/HTTPS interception policy.), not the specified action.

C:

This outcome is associated with MAC spoofing limitation (Recognize the spoofing limitations of MAC identity and use stronger 802.1X when possible.), not the specified action.

D:

This outcome is associated with MAC RADIUS entry mismatch (Correct the authorized MAC RADIUS identity record after verifying the endpoint's true address.), not the specified action.

Question 575

An Ethernet port serves a mix of domain computers and legacy devices that cannot respond to EAPOL. A colleague instead suggests: Recognize the spoofing limitations of MAC identity and use stronger 802.1X when possible. Which corrective approach most directly addresses the original issue?

  1. Correct the authorized MAC RADIUS identity record after verifying the endpoint's true address.
  2. Inspect captive portal redirection, DNS reachability and HTTP/HTTPS interception policy.
  3. Use a supported authentication-order design that tries 802.1X and then permitted MAC authentication where appropriate.
  4. Recognize the spoofing limitations of MAC identity and use stronger 802.1X when possible.

Explanation

Correct Answer

C:

This corrective choice addresses 802.1X to MAC fallback. Legacy devices can follow a controlled alternative rather than bypassing all network admission checks.

Incorrect Answers

A:

That alternative applies to MAC RADIUS entry mismatch instead. The switch's MAC-based request can match the expected authorized device record.

B:

That alternative applies to Captive portal redirect failure instead. The portal can become reachable for an unauthenticated browser session.

D:

That alternative applies to MAC spoofing limitation instead. The security design does not mistake a changeable hardware address for a cryptographic credential.

Question 576

An enterprise network designer recommends: Use a supported authentication-order design that tries 802.1X and then permitted MAC authentication where appropriate. Which situation most clearly calls for this action?

  1. A guest client has limited DHCP access but never sees the required authentication web page.
  2. An operator proposes treating MAC-only admission as equivalent to strong certificate-based user authentication.
  3. A non-802.1X endpoint is denied access because the registered MAC identifier differs from the address presented to RADIUS.
  4. An Ethernet port serves a mix of domain computers and legacy devices that cannot respond to EAPOL.

Explanation

Correct Answer

D:

This case requires the 802.1X to MAC fallback action. Legacy devices can follow a controlled alternative rather than bypassing all network admission checks.

Incorrect Answers

A:

This other case would be better matched to Inspect captive portal redirection, DNS reachability and HTTP/HTTPS interception policy. The portal can become reachable for an unauthenticated browser session.

B:

This other case would be better matched to Recognize the spoofing limitations of MAC identity and use stronger 802.1X when possible. The security design does not mistake a changeable hardware address for a cryptographic credential.

C:

This other case would be better matched to Correct the authorized MAC RADIUS identity record after verifying the endpoint's true address. The switch's MAC-based request can match the expected authorized device record.

Question 577

A RADIUS-authenticated switch user is authorized but lands in the wrong VLAN because the returned assignment attributes are misconfigured. Which Junos networking action or protocol decision best addresses this requirement?

  1. Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods.
  2. Use MAC RADIUS authentication for the approved printer MAC on its switch interface.
  3. Correct the approved RADIUS VLAN authorization attributes and switch support for them.
  4. Use a supported captive portal authentication workflow for the guest access design.

Explanation

Correct Answer

C:

This action addresses RADIUS attributes. The successful authentication can apply the intended dynamic VLAN authorization.

Incorrect Answers

A:

That action targets Authentication method order: The preferred authentication method is attempted according to the intended policy sequence. It does not directly resolve the stated RADIUS attributes requirement.

B:

That action targets Printer MAC RADIUS: The server can evaluate the device identity using MAC-based authentication rather than EAP credentials. It does not directly resolve the stated RADIUS attributes requirement.

D:

That action targets Captive portal interactive login: Browser users can complete the web-based admission process before receiving wider access. It does not directly resolve the stated RADIUS attributes requirement.

Question 578

A Junos network engineer takes this step: Correct the approved RADIUS VLAN authorization attributes and switch support for them. Which outcome most directly follows?

  1. The preferred authentication method is attempted according to the intended policy sequence.
  2. Browser users can complete the web-based admission process before receiving wider access.
  3. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.
  4. The successful authentication can apply the intended dynamic VLAN authorization.

Explanation

Correct Answer

D:

This is the direct result of the RADIUS attributes decision: The successful authentication can apply the intended dynamic VLAN authorization.

Incorrect Answers

A:

This outcome is associated with Authentication method order (Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods.), not the specified action.

B:

This outcome is associated with Captive portal interactive login (Use a supported captive portal authentication workflow for the guest access design.), not the specified action.

C:

This outcome is associated with Printer MAC RADIUS (Use MAC RADIUS authentication for the approved printer MAC on its switch interface.), not the specified action.

Question 579

A RADIUS-authenticated switch user is authorized but lands in the wrong VLAN because the returned assignment attributes are misconfigured. A colleague instead suggests: Use MAC RADIUS authentication for the approved printer MAC on its switch interface. Which corrective approach most directly addresses the original issue?

  1. Correct the approved RADIUS VLAN authorization attributes and switch support for them.
  2. Use MAC RADIUS authentication for the approved printer MAC on its switch interface.
  3. Use a supported captive portal authentication workflow for the guest access design.
  4. Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods.

Explanation

Correct Answer

A:

This corrective choice addresses RADIUS attributes. The successful authentication can apply the intended dynamic VLAN authorization.

Incorrect Answers

B:

That alternative applies to Printer MAC RADIUS instead. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.

C:

That alternative applies to Captive portal interactive login instead. Browser users can complete the web-based admission process before receiving wider access.

D:

That alternative applies to Authentication method order instead. The preferred authentication method is attempted according to the intended policy sequence.

Question 580

An enterprise network designer recommends: Correct the approved RADIUS VLAN authorization attributes and switch support for them. Which situation most clearly calls for this action?

  1. Visitors use a web browser on the guest network and must accept terms or authenticate through a login page before unrestricted use.
  2. A RADIUS-authenticated switch user is authorized but lands in the wrong VLAN because the returned assignment attributes are misconfigured.
  3. An endpoint supports 802.1X but the access switch processes only MAC RADIUS, contrary to the planned primary method.
  4. A headless network printer cannot run an 802.1X supplicant but the access policy still requires server-mediated admission.

Explanation

Correct Answer

B:

This case requires the RADIUS attributes action. The successful authentication can apply the intended dynamic VLAN authorization.

Incorrect Answers

A:

This other case would be better matched to Use a supported captive portal authentication workflow for the guest access design. Browser users can complete the web-based admission process before receiving wider access.

C:

This other case would be better matched to Configure an appropriate order among dot1x, MAC RADIUS and captive-portal methods. The preferred authentication method is attempted according to the intended policy sequence.

D:

This other case would be better matched to Use MAC RADIUS authentication for the approved printer MAC on its switch interface. The server can evaluate the device identity using MAC-based authentication rather than EAP credentials.

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