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Cisco 300-715 Bundle

Exam Code: 300-715

Exam Name Implementing and Configuring Cisco Identity Services Engine (300-715 SISE)

Certification Provider: Cisco

Corresponding Certification: CCNP Security

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Cisco 300-715 Practice Test 10

Question 90

An access-security change request states: Two ISE PSNs authenticate to different AD domains after an acquisition, but one PSN has not joined the trusted domain and users at that site fail randomly. Which durable safeguard best prevents a recurrence?

  1. Run cross-domain sign-in regression tests when adding or replacing PSNs.
  2. Review ISE AD group mappings whenever directory groups are renamed or reorganized.
  3. Validate directory organizational-unit moves against ISE LDAP search filters before cutover.
  4. Measure actual method fallback time when onboarding new non-supplicant device types.

Explanation

Correct Answer

A:

Run cross-domain sign-in regression tests when adding or replacing PSNs. This control addresses recurrence of the observed failure. The governing behavior is: A distributed policy configuration does not guarantee that every PSN has functioning connectivity and identity-source state for all target domains. The ongoing acceptance check remains: The same authorized acquired-company account authenticates through each intended PSN and maps to its correct authorization group.

Incorrect Answers

B:

Run cross-domain sign-in regression tests when adding or replacing PSNs. The offered choice instead concerns a different principle: Review ISE AD group mappings whenever directory groups are renamed or reorganized. Those technical conditions are not interchangeable.

C:

Run cross-domain sign-in regression tests when adding or replacing PSNs. The offered choice instead concerns a different principle: Validate directory organizational-unit moves against ISE LDAP search filters before cutover. Those technical conditions are not interchangeable.

D:

Run cross-domain sign-in regression tests when adding or replacing PSNs. The offered choice instead concerns a different principle: Register the printer's endpoint MAC as an authorized internal endpoint and configure a tightly scoped MAB authorization profile. Those technical conditions are not interchangeable.

Question 91

An enterprise access-control incident describes: ISE logs show intermittent AD authentication rejects that correlate with a large clock offset on one policy node despite stable RADIUS connectivity. Which implementation decision directly satisfies the stated requirement?

  1. Update the ISE LDAP identity source search base and matching user object attributes to reflect the directory hierarchy.
  2. Restore AD-aware DNS resolution and reachable domain-controller discovery from the PSN, then retry the supported domain join.
  3. Set an appropriate certificate authentication profile identity extraction rule and map it to the required authorized identity source or policy.
  4. Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials.

Explanation

Correct Answer

D:

Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials. This is appropriate because kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures. It should be verified by this evidence: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

Incorrect Answers

A:

Review ISE AD group mappings whenever directory groups are renamed or reorganized. In the case being tested, Run cross-domain sign-in regression tests when adding or replacing PSNs. The necessary acceptance evidence is: Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials.

B:

Separate initial-node bootstrap rights from production policy-administration privileges. In the case being tested, Run cross-domain sign-in regression tests when adding or replacing PSNs. The necessary acceptance evidence is: Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials.

C:

Maintain per-directory schema mapping tests before identity store migrations. In the case being tested, Run cross-domain sign-in regression tests when adding or replacing PSNs. The necessary acceptance evidence is: Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials.

Question 92

In a staged Cisco ISE network access rollout, the team observes: ISE logs show intermittent AD authentication rejects that correlate with a large clock offset on one policy node despite stable RADIUS connectivity. Which technical behavior is MOST relevant to this design?

  1. LDAP authentication can expose credentials when confidentiality is absent; a protected bind path requires TLS trust as well as directory access.
  2. LDAP search scope and attribute mappings determine whether an otherwise reachable directory returns eligible user records.
  3. Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures.
  4. Static IP-to-SGT assignment supplies classification for eligible assets that cannot dynamically obtain an SGT via network access authentication.

Explanation

Correct Answer

C:

Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures. This behavior directly governs the stated requirement. The recommended action is: Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials. The acceptance result is: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

Incorrect Answers

A:

Validate directory organizational-unit moves against ISE LDAP search filters before cutover. The repeat risk here is different: Run cross-domain sign-in regression tests when adding or replacing PSNs. A directly relevant preventive control is: Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures.

B:

Review ISE AD group mappings whenever directory groups are renamed or reorganized. The repeat risk here is different: Run cross-domain sign-in regression tests when adding or replacing PSNs. A directly relevant preventive control is: Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures.

D:

Create a controlled static IP-to-SGT mapping for the approved server and distribute it through the supported method. The repeat risk here is different: Run cross-domain sign-in regression tests when adding or replacing PSNs. A directly relevant preventive control is: Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures.

Question 93

An identity and device-administration engineer evaluates: ISE logs show intermittent AD authentication rejects that correlate with a large clock offset on one policy node despite stable RADIUS connectivity. Which readback demonstrates that the actual problem was solved?

  1. The same authorized acquired-company account authenticates through each intended PSN and maps to its correct authorization group.
  2. A known user is found under the new search base and an invalid identity is rejected.
  3. The affected PSN's clock offset falls within policy and the same test user authenticates reliably.
  4. A pilot access attempt requires and validates the approved second factor, with failed challenges denied.

Explanation

Correct Answer

C:

The affected PSN's clock offset falls within policy and the same test user authenticates reliably. The required remediation is: Correct the PSN's NTP configuration and verify time synchronization with identity infrastructure before resetting user credentials. It works because kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures.

Incorrect Answers

A:

Run cross-domain sign-in regression tests when adding or replacing PSNs. The actual fault is governed by a different mechanism: Alert on ISE node time drift and authoritative NTP reachability. The needed response is: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

B:

Validate directory organizational-unit moves against ISE LDAP search filters before cutover. The actual fault is governed by a different mechanism: Alert on ISE node time drift and authoritative NTP reachability. The needed response is: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

D:

Test external MFA service failures and document secure fail-closed or permitted exception behavior. The actual fault is governed by a different mechanism: Alert on ISE node time drift and authoritative NTP reachability. The needed response is: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

Question 94

A campus and branch network operator reports: ISE logs show intermittent AD authentication rejects that correlate with a large clock offset on one policy node despite stable RADIUS connectivity. What validation should be repeated before subsequent rollouts?

  1. Include DNS locator and domain connectivity checks in ISE node renumbering.
  2. Monitor LDAP certificate renewal and prohibit cleartext bind exceptions.
  3. Test policy-set selection on each NAD and access medium before enabling broad changes.
  4. Alert on ISE node time drift and authoritative NTP reachability.

Explanation

Correct Answer

D:

Alert on ISE node time drift and authoritative NTP reachability. This control addresses recurrence of the observed failure. The governing behavior is: Kerberos and certificate-related authentication paths depend on appropriate time consistency; network reachability alone does not eliminate clock-related failures. The ongoing acceptance check remains: The affected PSN's clock offset falls within policy and the same test user authenticates reliably.

Incorrect Answers

A:

Alert on ISE node time drift and authoritative NTP reachability. The offered choice instead concerns a different principle: Include DNS locator and domain connectivity checks in ISE node renumbering. Those technical conditions are not interchangeable.

B:

Alert on ISE node time drift and authoritative NTP reachability. The offered choice instead concerns a different principle: Monitor LDAP certificate renewal and prohibit cleartext bind exceptions. Those technical conditions are not interchangeable.

C:

Alert on ISE node time drift and authoritative NTP reachability. The offered choice instead concerns a different principle: Change the authentication and authorization exception actions to controlled denial or strictly limited approved critical access. Those technical conditions are not interchangeable.

Question 95

An access-security change request states: A corporation has matching usernames in its internal ISE users and AD database and puts both in an identity-source sequence without documenting precedence. What should the team change before declaring this work complete?

  1. Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy.
  2. Replace the catch-all fallback with an explicit supported identity-store and failure policy that denies unauthorized identities.
  3. Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions.
  4. Register the actual controller RADIUS source address in ISE, configure matching shared secrets, and associate the correct allowed protocols.

Explanation

Correct Answer

C:

Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions. This is appropriate because identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases. It should be verified by this evidence: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

Incorrect Answers

A:

Audit overlapping account namespaces before modifying identity-source sequences. In the case being tested, Alert on ISE node time drift and authoritative NTP reachability. The necessary acceptance evidence is: Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions.

B:

Document and test certificate naming conventions during enrollment-template changes. In the case being tested, Alert on ISE node time drift and authoritative NTP reachability. The necessary acceptance evidence is: Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions.

D:

Test negative authentication cases during directory-failover policy reviews. In the case being tested, Alert on ISE node time drift and authoritative NTP reachability. The necessary acceptance evidence is: Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions.

Question 96

During a Cisco ISE postchange review, the following is observed: A corporation has matching usernames in its internal ISE users and AD database and puts both in an identity-source sequence without documenting precedence. What underlying Cisco ISE dependency explains this result?

  1. The ISE internal identity store can validate accounts without relying on an external AD or LDAP directory for the intended test.
  2. Multifactor authentication adds proof beyond a single password; placing a password-only AD store in a sequence does not create a second factor.
  3. 802.1X supplicant timeout and method sequencing determine when MAB can be attempted on a silent endpoint.
  4. Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.

Explanation

Correct Answer

D:

Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases. This behavior directly governs the stated requirement. The recommended action is: Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions. The acceptance result is: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

Incorrect Answers

A:

Track EAP certificate chain, identity mapping, and renewal as distinct controls. The repeat risk here is different: Alert on ISE node time drift and authoritative NTP reachability. A directly relevant preventive control is: Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.

B:

Expire temporary local users and prevent test identity stores from matching production requests. The repeat risk here is different: Alert on ISE node time drift and authoritative NTP reachability. A directly relevant preventive control is: Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.

C:

Tune supported authentication method order and timer behavior so the permitted MAB fallback starts within the required interval. The repeat risk here is different: Alert on ISE node time drift and authoritative NTP reachability. A directly relevant preventive control is: Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.

Question 97

A security policy owner must resolve this specific case: A corporation has matching usernames in its internal ISE users and AD database and puts both in an identity-source sequence without documenting precedence. Which measurable outcome proves the intended behavior?

  1. The named lab user authenticates in the lab policy while production policy does not accept that account.
  2. A pilot access attempt requires and validates the approved second factor, with failed challenges denied.
  3. A pilot identity is resolved by the intended external or internal source with a traceable authentication result.
  4. The first authorized client cannot grant access to an unregistered second client, and both have distinct session records.

Explanation

Correct Answer

C:

A pilot identity is resolved by the intended external or internal source with a traceable authentication result. The required remediation is: Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions. It works because identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.

Incorrect Answers

A:

Expire temporary local users and prevent test identity stores from matching production requests. The actual fault is governed by a different mechanism: Audit overlapping account namespaces before modifying identity-source sequences. The needed response is: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

B:

Test external MFA service failures and document secure fail-closed or permitted exception behavior. The actual fault is governed by a different mechanism: Audit overlapping account namespaces before modifying identity-source sequences. The needed response is: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

D:

Use multi-auth host mode where supported and require each downstream client to authenticate individually. The actual fault is governed by a different mechanism: Audit overlapping account namespaces before modifying identity-source sequences. The needed response is: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

Question 98

A network identity engineer receives the following requirement: A corporation has matching usernames in its internal ISE users and AD database and puts both in an identity-source sequence without documenting precedence. Which ongoing practice is most appropriate for this failure mode?

  1. Track EAP certificate chain, identity mapping, and renewal as distinct controls.
  2. Maintain per-directory schema mapping tests before identity store migrations.
  3. Audit overlapping account namespaces before modifying identity-source sequences.
  4. Alert on ISE node time drift and authoritative NTP reachability.

Explanation

Correct Answer

C:

Audit overlapping account namespaces before modifying identity-source sequences. This control addresses recurrence of the observed failure. The governing behavior is: Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases. The ongoing acceptance check remains: A pilot identity is resolved by the intended external or internal source with a traceable authentication result.

Incorrect Answers

A:

Audit overlapping account namespaces before modifying identity-source sequences. The offered choice instead concerns a different principle: Track EAP certificate chain, identity mapping, and renewal as distinct controls. Those technical conditions are not interchangeable.

B:

Audit overlapping account namespaces before modifying identity-source sequences. The offered choice instead concerns a different principle: Maintain per-directory schema mapping tests before identity store migrations. Those technical conditions are not interchangeable.

D:

Audit overlapping account namespaces before modifying identity-source sequences. The offered choice instead concerns a different principle: Alert on ISE node time drift and authoritative NTP reachability. Those technical conditions are not interchangeable.

Question 99

A campus and branch network operator reports: A wired EAP-TLS client presents a certificate from an untrusted private CA, and an engineer edits the AD password policy instead of the certificate trust path. Which response most directly corrects the described failure?

  1. Integrate a supported MFA identity provider or method for the specific authentication flow and validate factor challenge and fallback behavior.
  2. Define a deterministic identity-source sequence or an unambiguous policy to select the intended source, and check for duplicate principal collisions.
  3. Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy.
  4. Apply an appropriate closed-mode wired 802.1X configuration with necessary tightly controlled exceptions.

Explanation

Correct Answer

C:

Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy. This is appropriate because certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone. It should be verified by this evidence: The approved client certificate passes validation while a certificate from an unknown CA fails.

Incorrect Answers

A:

Expire temporary local users and prevent test identity stores from matching production requests. In the case being tested, Audit overlapping account namespaces before modifying identity-source sequences. The necessary acceptance evidence is: Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy.

B:

Alert on ISE node time drift and authoritative NTP reachability. In the case being tested, Audit overlapping account namespaces before modifying identity-source sequences. The necessary acceptance evidence is: Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy.

D:

Apply an appropriate closed-mode wired 802.1X configuration with necessary tightly controlled exceptions. In the case being tested, Audit overlapping account namespaces before modifying identity-source sequences. The necessary acceptance evidence is: Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy.

Question 100

A Cisco ISE operations team investigates this site issue: A wired EAP-TLS client presents a certificate from an untrusted private CA, and an engineer edits the AD password policy instead of the certificate trust path. Which statement best explains why the correct response works?

  1. Identity-store ordering and duplicate account representations can change or block authentication when a username exists in multiple databases.
  2. The ISE internal identity store can validate accounts without relying on an external AD or LDAP directory for the intended test.
  3. MAB identity lookup depends on consistent endpoint MAC representation and correct RADIUS attributes, not an ordinary employee password.
  4. Certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone.

Explanation

Correct Answer

D:

Certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone. This behavior directly governs the stated requirement. The recommended action is: Install and trust the approved issuing CA chain in ISE and configure an appropriate certificate authentication profile and EAP-TLS policy. The acceptance result is: The approved client certificate passes validation while a certificate from an unknown CA fails.

Incorrect Answers

A:

Alert on ISE node time drift and authoritative NTP reachability. The repeat risk here is different: Audit overlapping account namespaces before modifying identity-source sequences. A directly relevant preventive control is: Certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone.

B:

Track EAP certificate chain, identity mapping, and renewal as distinct controls. The repeat risk here is different: Audit overlapping account namespaces before modifying identity-source sequences. A directly relevant preventive control is: Certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone.

C:

Normalize and validate the NAD's MAC calling-station identifier format against ISE's accepted endpoint identity handling. The repeat risk here is different: Audit overlapping account namespaces before modifying identity-source sequences. A directly relevant preventive control is: Certificate-based authentication validates X.509 trust, identity extraction, and permitted EAP methods rather than a password lookup alone.