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Cisco 300-715 Practice Test 6

Question 50

A wireless controller sends all authorization to a distant PSN even though a healthy local policy node exists. The observed failure is: Redundant PSNs do not improve uptime when the access device never targets the backup. How should the administrator correct and verify this failure?

  1. The supported recovery is to disable RADIUS timeouts instead of configuring an alternate server.
  2. The supported recovery is to assume adding a PSN automatically edits every switch AAA configuration.
  3. The supported recovery is to correct NAD AAA server definitions and verify authentication during controlled PSN loss.
  4. The supported recovery is to set all network devices to use the same failed single destination.

Explanation

Correct Answer

C:

Access-device RADIUS high availability depends on the NAD server list and working policy service endpoints. Recheck nAD server group, timeout and retry values, PSN health, network route and successful failover events.

Incorrect Answers

A:

Disable RADIUS timeouts instead of configuring an alternate server. This action does not repair the identified failure. Redundant PSNs do not improve uptime when the access device never targets the backup. Instead, correct NAD AAA server definitions and verify authentication during controlled PSN loss. For the specific situation, a wireless controller sends all authorization to a distant PSN even though a healthy local policy node exists.

B:

Assume adding a PSN automatically edits every switch AAA configuration. This action does not repair the identified failure. Redundant PSNs do not improve uptime when the access device never targets the backup. Instead, correct NAD AAA server definitions and verify authentication during controlled PSN loss. For the specific situation, a wireless controller sends all authorization to a distant PSN even though a healthy local policy node exists.

D:

Set all network devices to use the same failed single destination. This action does not repair the identified failure. Redundant PSNs do not improve uptime when the access device never targets the backup. Instead, correct NAD AAA server definitions and verify authentication during controlled PSN loss. For the specific situation, a wireless controller sends all authorization to a distant PSN even though a healthy local policy node exists.

Question 51

A secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate. Which configuration decision most directly satisfies the requirement?

  1. Verify supported node identity, DNS resolution, trust chain, synchronization and registration before admitting it to the deployment.
  2. Disable HTTPS certificate validation throughout the deployment.
  3. Rename only the GUI site label and claim node identity is corrected.
  4. Use self-signed certificates without distributing trust to the connecting nodes.

Explanation

Correct Answer

A:

Verify the effect through node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Incorrect Answers

B:

This does not implement the required control for ISE distributed node certificate trust and registration. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration.

C:

Rename only the GUI site label and claim node identity is corrected. This alternative overlooks a required prerequisite or targets the wrong function. Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. The relevant evidence is node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

D:

Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Question 52

A secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate. What observations most directly test this network-access condition?

  1. A device hostname alone without the policy result or authenticated source.
  2. Node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors.
  3. A current login screenshot from a completely unrelated ISE deployment.
  4. A browser theme label without a current authorization trace.

Explanation

Correct Answer

B:

These observations directly establish the result of ISE distributed node certificate trust and registration for the described endpoint or network device. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Incorrect Answers

A:

This observation cannot verify ISE distributed node certificate trust and registration. Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles.

C:

This observation cannot verify ISE distributed node certificate trust and registration. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

D:

This observation cannot verify ISE distributed node certificate trust and registration. Check node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors.

Question 53

A secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate. What principle of ISE authentication and authorization explains this case?

  1. Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles.
  2. A successful switch port link signal always proves the device identity and policy were verified.
  3. All Cisco ISE administration and policy personas perform exactly the same service.
  4. A policy display name alone is the complete source of enforcement state.

Explanation

Correct Answer

A:

The supported implementation is to verify supported node identity, DNS resolution, trust chain, synchronization and registration before admitting it to the deployment. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Incorrect Answers

B:

This generalization is not valid for ISE distributed node certificate trust and registration. Instead secure node registration requires consistent resolvable identities and trusted certificates across ISE roles.

C:

This generalization is not valid for ISE distributed node certificate trust and registration. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

D:

This generalization is not valid for ISE distributed node certificate trust and registration. Verify the actual state using node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors.

Question 54

A secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate. An operator proposes the following incorrect shortcut: Disable HTTPS certificate validation throughout the deployment. 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. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration.

Explanation

Correct Answer

D:

The shortcut is unsuitable because secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Incorrect Answers

A:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. The relevant risk is that bypassing certificate verification to attach a node can undermine deployment security and still fail registration.

B:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

C:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. Check node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors.

Question 55

A secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate. The observed failure is: Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. How should the administrator correct and verify this failure?

  1. Repair identity and trust prerequisites then register the node and check replication and PSN status.
  2. Rename only the GUI site label and claim node identity is corrected.
  3. Use self-signed certificates without distributing trust to the connecting nodes.
  4. Disable HTTPS certificate validation throughout the deployment.

Explanation

Correct Answer

A:

Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Incorrect Answers

B:

Rename only the GUI site label and claim node identity is corrected. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

C:

Use self-signed certificates without distributing trust to the connecting nodes. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

D:

Disable HTTPS certificate validation throughout the deployment. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a secondary ISE node cannot join a deployment because its certificate or hostname identity does not validate.

Question 56

A rebuilt regional PSN fails secure communication with administration nodes after a DNS name change. Which administrator action is appropriate for this ISE access-control problem?

  1. In this case, verify supported node identity, DNS resolution, trust chain, synchronization and registration before admitting it to the deployment.
  2. In this case, rename only the GUI site label and claim node identity is corrected.
  3. In this case, use self-signed certificates without distributing trust to the connecting nodes.
  4. In this case, disable HTTPS certificate validation throughout the deployment.

Explanation

Correct Answer

A:

Verify the effect through node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Incorrect Answers

B:

Rename only the GUI site label and claim node identity is corrected. This alternative overlooks a required prerequisite or targets the wrong function. Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. The relevant evidence is node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

C:

Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

D:

This does not implement the required control for ISE distributed node certificate trust and registration. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Question 57

A rebuilt regional PSN fails secure communication with administration nodes after a DNS name change. 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 node FQDN, certificate SAN, CA chain, time synchronization and deployment registration errors.
  4. The supporting evidence is a current login screenshot from a completely unrelated ISE deployment.

Explanation

Correct Answer

C:

These observations directly establish the result of ISE distributed node certificate trust and registration for the described endpoint or network device. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Incorrect Answers

A:

This observation cannot verify ISE distributed node certificate trust and registration. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

B:

This observation cannot verify ISE distributed node certificate trust and registration. A device hostname alone without the policy result or authenticated source.

D:

This observation cannot verify ISE distributed node certificate trust and registration. A current login screenshot from a completely unrelated ISE deployment.

Question 58

A rebuilt regional PSN fails secure communication with administration nodes after a DNS name change. Which statement about the relevant technology is correct?

  1. The governing principle is that a policy display name alone is the complete source of enforcement state.
  2. The governing principle is that a successful switch port link signal always proves the device identity and policy were verified.
  3. The governing principle is that every RADIUS Access-Accept grants unrestricted access to all applications.
  4. The governing principle is that secure node registration requires consistent resolvable identities and trusted certificates across ISE roles.

Explanation

Correct Answer

D:

The supported implementation is to verify supported node identity, DNS resolution, trust chain, synchronization and registration before admitting it to the deployment. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Incorrect Answers

A:

This generalization is not valid for ISE distributed node certificate trust and registration. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

B:

This generalization is not valid for ISE distributed node certificate trust and registration. A successful switch port link signal always proves the device identity and policy were verified.

C:

This generalization is not valid for ISE distributed node certificate trust and registration. Every RADIUS Access-Accept grants unrestricted access to all applications.

Question 59

A rebuilt regional PSN fails secure communication with administration nodes after a DNS name change. An operator proposes the following incorrect shortcut: Disable HTTPS certificate validation throughout the deployment. 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 bypassing certificate verification to attach a node can undermine deployment security and still fail registration.
  4. The material consequence is that a correctly recorded TACACS command audit caused the preceding security violation.

Explanation

Correct Answer

C:

The shortcut is unsuitable because secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Incorrect Answers

A:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

B:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. The only result is an unrelated portal background color change.

D:

This unrelated assertion does not explain the ISE distributed node certificate trust and registration problem. A correctly recorded TACACS command audit caused the preceding security violation.

Question 60

A rebuilt regional PSN fails secure communication with administration nodes after a DNS name change. The observed failure is: Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Which remediation resolves the underlying fault while maintaining policy?

  1. The supported recovery is to repair identity and trust prerequisites then register the node and check replication and PSN status.
  2. The supported recovery is to use self-signed certificates without distributing trust to the connecting nodes.
  3. The supported recovery is to disable HTTPS certificate validation throughout the deployment.
  4. The supported recovery is to rename only the GUI site label and claim node identity is corrected.

Explanation

Correct Answer

A:

Secure node registration requires consistent resolvable identities and trusted certificates across ISE roles. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

Incorrect Answers

B:

Use self-signed certificates without distributing trust to the connecting nodes. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

C:

Disable HTTPS certificate validation throughout the deployment. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

D:

Rename only the GUI site label and claim node identity is corrected. This action does not repair the identified failure. Bypassing certificate verification to attach a node can undermine deployment security and still fail registration. Instead, repair identity and trust prerequisites then register the node and check replication and PSN status. For the specific situation, a rebuilt regional PSN fails secure communication with administration nodes after a DNS name change.

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