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Cisco 300-715 Practice Test 34

Question 330

A legacy scanner should use MAB only when its EAP method is genuinely unsupported. The observed failure is: A permissive MAB success before strong authentication can downgrade a capable endpoint's network access classification. How should the administrator correct and verify this failure?

  1. The supported recovery is to use switch port description text as authentication order control.
  2. The supported recovery is to assume first MAC success always proves an EAP certificate exists.
  3. The supported recovery is to configure every endpoint to skip EAP indefinitely for faster link-up.
  4. The supported recovery is to reorder methods and verify managed laptop EAP-TLS plus restricted headless-device MAB.

Explanation

Correct Answer

D:

This restores the intended operational behavior for MAB versus 802.1X order and fallback policy. 802.1X and MAB are different methods whose ordering and priorities can affect effective access. For the specific situation, a legacy scanner should use MAB only when its EAP method is genuinely unsupported.

Incorrect Answers

A:

Use switch port description text as authentication order control. This action does not repair the identified failure. A permissive MAB success before strong authentication can downgrade a capable endpoint's network access classification. Instead, reorder methods and verify managed laptop EAP-TLS plus restricted headless-device MAB. For the specific situation, a legacy scanner should use MAB only when its EAP method is genuinely unsupported.

B:

Assume first MAC success always proves an EAP certificate exists. This action does not repair the identified failure. A permissive MAB success before strong authentication can downgrade a capable endpoint's network access classification. Instead, reorder methods and verify managed laptop EAP-TLS plus restricted headless-device MAB. For the specific situation, a legacy scanner should use MAB only when its EAP method is genuinely unsupported.

C:

Configure every endpoint to skip EAP indefinitely for faster link-up. This action does not repair the identified failure. A permissive MAB success before strong authentication can downgrade a capable endpoint's network access classification. Instead, reorder methods and verify managed laptop EAP-TLS plus restricted headless-device MAB. For the specific situation, a legacy scanner should use MAB only when its EAP method is genuinely unsupported.

Question 331

A printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator. Which configuration decision most directly satisfies the requirement?

  1. Treat any syntactically valid MAC as a managed asset.
  2. Put all unknown MACs into the privileged printer group automatically.
  3. Normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result.
  4. Disable all network access logs to hide MAC mismatches.

Explanation

Correct Answer

C:

Verify the effect through endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.

Incorrect Answers

A:

This does not implement the required control for MAB identity normalization and unknown endpoint policy. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services.

B:

Put all unknown MACs into the privileged printer group automatically. This alternative overlooks a required prerequisite or targets the wrong function. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. The relevant evidence is endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL. For the specific situation, a printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator.

D:

A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead the intended policy action is normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result.

Question 332

A printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator. What observations most directly test this network-access condition?

  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. Endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL.
  4. A current login screenshot from a completely unrelated ISE deployment.

Explanation

Correct Answer

C:

These observations directly establish the result of MAB identity normalization and unknown endpoint policy for the described endpoint or network device. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.

Incorrect Answers

A:

This observation cannot verify MAB identity normalization and unknown endpoint policy. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.

B:

This observation cannot verify MAB identity normalization and unknown endpoint policy. Check endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL.

D:

This observation cannot verify MAB identity normalization and unknown endpoint policy. A current login screenshot from a completely unrelated ISE deployment.

Question 333

A printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator. What principle of ISE authentication and authorization explains this case?

  1. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.
  2. A captive portal page automatically changes network authorization on every active NAD session without signaling.
  3. A successful switch port link signal always proves the device identity and policy were verified.
  4. Every RADIUS Access-Accept grants unrestricted access to all applications.

Explanation

Correct Answer

A:

The supported implementation is to normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result. This is the governing technical behavior for MAB identity normalization and unknown endpoint policy.

Incorrect Answers

B:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. Instead mAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.

C:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. Verify the actual state using endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL.

D:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. Every RADIUS Access-Accept grants unrestricted access to all applications.

Question 334

A printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator. An operator proposes the following incorrect shortcut: Treat any syntactically valid MAC as a managed asset. Which negative consequence BEST explains the shortcut’s flaw?

  1. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services.
  2. Reading the authentication event report caused the original network access outage.
  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

A:

The shortcut is unsuitable because mAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. The supported preventive action is to normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result.

Incorrect Answers

B:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. The relevant risk is that a broad catch-all MAB permit can let arbitrary spoofed MACs reach production services.

C:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. Check endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL.

D:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. Accurate device accounting automatically created every earlier failed EAP exchange.

Question 335

A printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator. The observed failure is: A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. How should the administrator correct and verify this failure?

  1. Put all unknown MACs into the privileged printer group automatically.
  2. Correct endpoint identity or identity-group rules and test registered and unregistered devices.
  3. Disable all network access logs to hide MAC mismatches.
  4. Treat any syntactically valid MAC as a managed asset.

Explanation

Correct Answer

B:

MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. This restores the intended operational behavior for MAB identity normalization and unknown endpoint policy.

Incorrect Answers

A:

Put all unknown MACs into the privileged printer group automatically. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, a printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator.

C:

Disable all network access logs to hide MAC mismatches. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, a printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator.

D:

Treat any syntactically valid MAC as a managed asset. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, a printer was registered with hyphenated MAC notation but the RADIUS request carries a different case and separator.

Question 336

An unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices. Which administrator action is appropriate for this ISE access-control problem?

  1. In this case, put all unknown MACs into the privileged printer group automatically.
  2. In this case, normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result.
  3. In this case, disable all network access logs to hide MAC mismatches.
  4. In this case, treat any syntactically valid MAC as a managed asset.

Explanation

Correct Answer

B:

Verify the effect through endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Incorrect Answers

A:

Put all unknown MACs into the privileged printer group automatically. This alternative overlooks a required prerequisite or targets the wrong function. MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. The relevant evidence is endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective dACL. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

C:

A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

D:

This does not implement the required control for MAB identity normalization and unknown endpoint policy. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Question 337

An unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices. Which collected records establish that the ISE decision actually took effect?

  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 endpoint identifier, ISE identity group, RADIUS Calling-Station-ID, unknown rule and effective 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 MAB identity normalization and unknown endpoint policy for the described endpoint or network device. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Incorrect Answers

A:

This observation cannot verify MAB identity normalization and unknown endpoint policy. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

B:

This observation cannot verify MAB identity normalization and unknown endpoint policy. A switch interface description without any live AAA request or response.

D:

This observation cannot verify MAB identity normalization and unknown endpoint policy. An old diagram with no RADIUS, TACACS+ or endpoint-session evidence.

Question 338

An unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices. Which statement about the relevant technology is correct?

  1. The governing principle is that mAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints.
  2. The governing principle is that every RADIUS Access-Accept grants unrestricted access to all applications.
  3. The governing principle is that a captive portal page automatically changes network authorization on every active NAD session without signaling.
  4. The governing principle is that a MAC address is a cryptographic proof of endpoint device ownership.

Explanation

Correct Answer

A:

The supported implementation is to normalize supported MAC identity presentation and define an explicit low-trust unknown-endpoint authorization result. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Incorrect Answers

B:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

C:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. A captive portal page automatically changes network authorization on every active NAD session without signaling.

D:

This generalization is not valid for MAB identity normalization and unknown endpoint policy. A MAC address is a cryptographic proof of endpoint device ownership.

Question 339

An unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices. An operator proposes the following incorrect shortcut: Treat any syntactically valid MAC as a managed asset. What specific security or operational failure should be anticipated?

  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 broad catch-all MAB permit can let arbitrary spoofed MACs reach production services.
  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 mAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Incorrect Answers

A:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

B:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. Inspecting a correct endpoint certificate generated the original directory outage.

D:

This unrelated assertion does not explain the MAB identity normalization and unknown endpoint policy problem. The only result is an unrelated portal background color change.

Question 340

An unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices. The observed failure is: A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Which remediation resolves the underlying fault while maintaining policy?

  1. The supported recovery is to correct endpoint identity or identity-group rules and test registered and unregistered devices.
  2. The supported recovery is to disable all network access logs to hide MAC mismatches.
  3. The supported recovery is to treat any syntactically valid MAC as a managed asset.
  4. The supported recovery is to put all unknown MACs into the privileged printer group automatically.

Explanation

Correct Answer

A:

MAB matching requires consistent device identifiers and deliberate treatment of previously unknown endpoints. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

Incorrect Answers

B:

Disable all network access logs to hide MAC mismatches. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

C:

Treat any syntactically valid MAC as a managed asset. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

D:

Put all unknown MACs into the privileged printer group automatically. This action does not repair the identified failure. A broad catch-all MAB permit can let arbitrary spoofed MACs reach production services. Instead, correct endpoint identity or identity-group rules and test registered and unregistered devices. For the specific situation, an unknown MAC authenticates against a permissive endpoint group that was meant only for trusted lab devices.

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