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Cisco 300-410 Bundle

Exam Code: 300-410

Exam Name Implementing Cisco Enterprise Advanced Routing and Services (ENARSI)

Certification Provider: Cisco

Corresponding Certification: CCNP Enterprise

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Cisco 300-410 Practice Test 79

Question 780

At the Clearwater library district, R-CLW-EDGE1's IOS DHCP server assigns a lease in a range reserved for statically configured printers. Which continuing operational control is most directly relevant to preventing this problem?

  1. Monitor clock synchronization and timestamp settings across infrastructure devices.
  2. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes.
  3. Review syslog severity and collection capacity after troubleshooting requirements change.
  4. Reconcile DHCP exclusions with static inventories whenever subnet assignments change.

Explanation

Correct Answer

D:

At the Clearwater library district, this continuing check directly limits recurrence of the observed failure. Reconcile DHCP exclusions with static inventories whenever subnet assignments change. The underlying problem is: The DHCP pool includes addresses reserved for devices that are configured manually.

Incorrect Answers

A:

This is useful for another concern: Monitor clock synchronization and timestamp settings across infrastructure devices. It does not continuously test dhcp excluded-address pool at the Clearwater library district.

B:

This would manage a different failure pattern. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. It is not the most direct recurring check for dhcp excluded-address pool at the Clearwater library district.

C:

That safeguard protects against syslog severity threshold, not the concrete risk described at the Clearwater library district. The DHCP pool includes addresses reserved for devices that are configured manually.

Question 781

At the Highland government office, new DHCP clients repeatedly fail to receive addresses although the configured pool is not exhausted; the router records many excluded conflict addresses. Which continuing operational control is most directly relevant to preventing this problem?

  1. Use time-bounded, conditionally scoped debug procedures with active CPU monitoring.
  2. Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind.
  3. Audit DHCP relay metadata policies and trusted relay identities across access segments.
  4. Monitor clock synchronization and timestamp settings across infrastructure devices.

Explanation

Correct Answer

B:

At the Highland government office, this continuing check directly limits recurrence of the observed failure. Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind. The underlying problem is: Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

Incorrect Answers

A:

That safeguard protects against conditional debug and router load, not the concrete risk described at the Highland government office. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

C:

This would manage a different failure pattern. Required DHCP relay-agent location information is missing from forwarded requests. It is not the most direct recurring check for dhcp declined conflicts at the Highland government office.

D:

That safeguard protects against syslog timestamp correlation, not the concrete risk described at the Highland government office. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

Question 782

At the Foothill municipal site, new DHCP clients repeatedly fail to receive addresses although the configured pool is not exhausted; the router records many excluded conflict addresses. Which continuing operational control is most directly relevant to preventing this problem?

  1. Define metric sampling and retention separately from event logging policies.
  2. Monitor clock synchronization and timestamp settings across infrastructure devices.
  3. Reconcile DHCP exclusions with static inventories whenever subnet assignments change.
  4. Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind.

Explanation

Correct Answer

D:

This control monitors the relevant configuration or operational behavior at the Foothill municipal site. Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind. It targets the condition described in the stem.

Incorrect Answers

A:

This would manage a different failure pattern. Event-only syslog messages do not provide the periodic operational counter series requested. It is not the most direct recurring check for dhcp declined conflicts at the Foothill municipal site.

B:

That safeguard protects against syslog timestamp correlation, not the concrete risk described at the Foothill municipal site. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

C:

This is useful for another concern: Reconcile DHCP exclusions with static inventories whenever subnet assignments change. It does not continuously test dhcp declined conflicts at the Foothill municipal site.

Question 783

At the Silverstream data center, IPv6 hosts autoconfigure addresses from Router Advertisements but do not request DNS configuration from the intended stateful DHCPv6 information source. Which continuing operational control is most directly relevant to preventing this problem?

  1. Review syslog severity and collection capacity after troubleshooting requirements change.
  2. Review DHCPv6 relay destinations and server routing after network migrations.
  3. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes.
  4. Monitor clock synchronization and timestamp settings across infrastructure devices.

Explanation

Correct Answer

C:

The safeguard follows the failure mechanism at the Silverstream data center. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes.

Incorrect Answers

A:

This is useful for another concern: Review syslog severity and collection capacity after troubleshooting requirements change. It does not continuously test dhcpv6 stateless information request at the Silverstream data center.

B:

This would manage a different failure pattern. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. It is not the most direct recurring check for dhcpv6 stateless information request at the Silverstream data center.

D:

This is useful for another concern: Monitor clock synchronization and timestamp settings across infrastructure devices. It does not continuously test dhcpv6 stateless information request at the Silverstream data center.

Question 784

At the Brookstone distribution branch, IPv6 hosts autoconfigure addresses from Router Advertisements but do not request DNS configuration from the intended stateful DHCPv6 information source. Which continuing operational control is most directly relevant to preventing this problem?

  1. Use time-bounded, conditionally scoped debug procedures with active CPU monitoring.
  2. Review syslog severity and collection capacity after troubleshooting requirements change.
  3. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes.
  4. Define metric sampling and retention separately from event logging policies.

Explanation

Correct Answer

C:

This control monitors the relevant configuration or operational behavior at the Brookstone distribution branch. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes. It targets the condition described in the stem.

Incorrect Answers

A:

That safeguard protects against conditional debug and router load, not the concrete risk described at the Brookstone distribution branch. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

B:

This is useful for another concern: Review syslog severity and collection capacity after troubleshooting requirements change. It does not continuously test dhcpv6 stateless information request at the Brookstone distribution branch.

D:

That safeguard protects against telemetry visibility versus only log events, not the concrete risk described at the Brookstone distribution branch. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

Question 785

At the Southridge banking office, an IPv6 client VLAN has a working default route, but DHCPv6 requests cannot reach the remote central DHCPv6 server. Which continuing operational control is most directly relevant to preventing this problem?

  1. Review syslog severity and collection capacity after troubleshooting requirements change.
  2. Review DHCPv6 relay destinations and server routing after network migrations.
  3. Monitor clock synchronization and timestamp settings across infrastructure devices.
  4. Define metric sampling and retention separately from event logging policies.

Explanation

Correct Answer

B:

The safeguard follows the failure mechanism at the Southridge banking office. Review DHCPv6 relay destinations and server routing after network migrations.

Incorrect Answers

A:

This would manage a different failure pattern. The remote logging level filters less-severe events before they are forwarded. It is not the most direct recurring check for dhcpv6 relay destination at the Southridge banking office.

C:

This is useful for another concern: Monitor clock synchronization and timestamp settings across infrastructure devices. It does not continuously test dhcpv6 relay destination at the Southridge banking office.

D:

This would manage a different failure pattern. Event-only syslog messages do not provide the periodic operational counter series requested. It is not the most direct recurring check for dhcpv6 relay destination at the Southridge banking office.

Question 786

At the Lakeside transit hub, an IPv6 client VLAN has a working default route, but DHCPv6 requests cannot reach the remote central DHCPv6 server. Which continuing operational control is most directly relevant to preventing this problem?

  1. Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind.
  2. Monitor clock synchronization and timestamp settings across infrastructure devices.
  3. Use time-bounded, conditionally scoped debug procedures with active CPU monitoring.
  4. Review DHCPv6 relay destinations and server routing after network migrations.

Explanation

Correct Answer

D:

At the Lakeside transit hub, this continuing check directly limits recurrence of the observed failure. Review DHCPv6 relay destinations and server routing after network migrations. The underlying problem is: The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

Incorrect Answers

A:

This is useful for another concern: Monitor DHCP conflicts and investigate their source instead of routinely clearing them blind. It does not continuously test dhcpv6 relay destination at the Lakeside transit hub.

B:

This would manage a different failure pattern. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation. It is not the most direct recurring check for dhcpv6 relay destination at the Lakeside transit hub.

C:

That safeguard protects against conditional debug and router load, not the concrete risk described at the Lakeside transit hub. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

Question 787

At the Pinecrest freight terminal, a centralized DHCP platform relies on relay-agent location data to choose a subnet policy, but R-PIN-WAN1's relayed requests contain no expected Option 82 information. Which continuing operational control is most directly relevant to preventing this problem?

  1. Reconcile DHCP exclusions with static inventories whenever subnet assignments change.
  2. Define metric sampling and retention separately from event logging policies.
  3. Audit DHCP relay metadata policies and trusted relay identities across access segments.
  4. Review DHCPv6 relay destinations and server routing after network migrations.

Explanation

Correct Answer

C:

This control monitors the relevant configuration or operational behavior at the Pinecrest freight terminal. Audit DHCP relay metadata policies and trusted relay identities across access segments. It targets the condition described in the stem.

Incorrect Answers

A:

That safeguard protects against dhcp excluded-address pool, not the concrete risk described at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests.

B:

This is useful for another concern: Define metric sampling and retention separately from event logging policies. It does not continuously test dhcp option 82 relay metadata at the Pinecrest freight terminal.

D:

That safeguard protects against dhcpv6 relay destination, not the concrete risk described at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests.

Question 788

At the Westlake utility network, a centralized DHCP platform relies on relay-agent location data to choose a subnet policy, but R-WLK-EDGE1's relayed requests contain no expected Option 82 information. Which continuing operational control is most directly relevant to preventing this problem?

  1. Monitor clock synchronization and timestamp settings across infrastructure devices.
  2. Define metric sampling and retention separately from event logging policies.
  3. Audit DHCP relay metadata policies and trusted relay identities across access segments.
  4. Test RA flag behavior and DHCPv6 information delivery after IPv6 VLAN changes.

Explanation

Correct Answer

C:

At the Westlake utility network, this continuing check directly limits recurrence of the observed failure. Audit DHCP relay metadata policies and trusted relay identities across access segments. The underlying problem is: Required DHCP relay-agent location information is missing from forwarded requests.

Incorrect Answers

A:

This would manage a different failure pattern. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation. It is not the most direct recurring check for dhcp option 82 relay metadata at the Westlake utility network.

B:

That safeguard protects against telemetry visibility versus only log events, not the concrete risk described at the Westlake utility network. Required DHCP relay-agent location information is missing from forwarded requests.

D:

This would manage a different failure pattern. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. It is not the most direct recurring check for dhcp option 82 relay metadata at the Westlake utility network.

Question 789

At the Bluewater clinical network, R-BLU-PE1 reports a failed IP SLA probe to a reachable service in a customer VRF because the probe originates from the global table. Which continuing operational control is most directly relevant to preventing this problem?

  1. Test exporter and collector compatibility after record-layout changes.
  2. Review assurance onboarding, telemetry and health baselines when adding network devices.
  3. Verify source context for every monitoring operation tied to a tenant or VRF.
  4. Review monitor attachment and direction whenever WAN interfaces change.

Explanation

Correct Answer

C:

The safeguard follows the failure mechanism at the Bluewater clinical network. Verify source context for every monitoring operation tied to a tenant or VRF.

Incorrect Answers

A:

This is useful for another concern: Test exporter and collector compatibility after record-layout changes. It does not continuously test ip sla source interface in vrf at the Bluewater clinical network.

B:

This would manage a different failure pattern. Isolated interface statistics do not explain the combined endpoint, device and network symptoms. It is not the most direct recurring check for ip sla source interface in vrf at the Bluewater clinical network.

D:

This is useful for another concern: Review monitor attachment and direction whenever WAN interfaces change. It does not continuously test ip sla source interface in vrf at the Bluewater clinical network.

Question 790

At the Cedarfield retail branch, R-CED-BR1 reports a failed IP SLA probe to a reachable service in a customer VRF because the probe originates from the global table. Which continuing operational control is most directly relevant to preventing this problem?

  1. Keep performance thresholds tied to relevant application metrics, not just ping state.
  2. Review assurance onboarding, telemetry and health baselines when adding network devices.
  3. Verify source context for every monitoring operation tied to a tenant or VRF.
  4. Review monitor attachment and direction whenever WAN interfaces change.

Explanation

Correct Answer

C:

This control monitors the relevant configuration or operational behavior at the Cedarfield retail branch. Verify source context for every monitoring operation tied to a tenant or VRF. It targets the condition described in the stem.

Incorrect Answers

A:

That safeguard protects against ip sla jitter versus simple ping, not the concrete risk described at the Cedarfield retail branch. The active probe uses the wrong routing context and cannot take the same path as customer traffic.

B:

This is useful for another concern: Review assurance onboarding, telemetry and health baselines when adding network devices. It does not continuously test ip sla source interface in vrf at the Cedarfield retail branch.

D:

That safeguard protects against flexible netflow monitor attachment, not the concrete risk described at the Cedarfield retail branch. The active probe uses the wrong routing context and cannot take the same path as customer traffic.