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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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Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) (300-410) Practice Tests

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Cisco 300-410 Practice Test 39

Question 380

At the Clearwater library district, R-CLW-EDGE1's IOS DHCP server assigns a lease in a range reserved for statically configured printers. Which underlying technical condition best accounts for this evidence?

  1. The DHCP pool includes addresses reserved for devices that are configured manually.
  2. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.
  3. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.
  4. Event-only syslog messages do not provide the periodic operational counter series requested.

Explanation

Correct Answer

A:

This diagnosis fits the symptoms at the Clearwater library district. The DHCP pool includes addresses reserved for devices that are configured manually. The remedial action is: Exclude the statically assigned address range from the IOS DHCP allocation pool.

Incorrect Answers

B:

The observation at the Clearwater library district does not point to dhcpv6 stateless information request; it points to a different condition. The DHCP pool includes addresses reserved for devices that are configured manually.

C:

This diagnoses a different mechanism: Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. The reported symptom at the Clearwater library district instead concerns dhcp excluded-address pool.

D:

That diagnosis belongs to telemetry visibility versus only log events, while the observation at the Clearwater library district points to dhcp excluded-address pool.

Question 381

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 underlying technical condition best accounts for this evidence?

  1. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.
  2. The remote logging level filters less-severe events before they are forwarded.
  3. Required DHCP relay-agent location information is missing from forwarded requests.
  4. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation.

Explanation

Correct Answer

A:

Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. That explains the specific symptom at the Highland government office. A direct corrective action is: Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources.

Incorrect Answers

B:

That diagnosis belongs to syslog severity threshold, while the observation at the Highland government office points to dhcp declined conflicts.

C:

The observation at the Highland government office does not point to dhcp option 82 relay metadata; it points to a different condition. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

D:

This diagnoses a different mechanism: Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation. The reported symptom at the Highland government office instead concerns dhcp declined conflicts.

Question 382

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 underlying technical condition best accounts for this evidence?

  1. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.
  2. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.
  3. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.
  4. Client DHCP broadcasts are not forwarded across the router to the remote DHCP service.

Explanation

Correct Answer

B:

Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. That explains the specific symptom at the Foothill municipal site. A direct corrective action is: Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources.

Incorrect Answers

A:

The observation at the Foothill municipal site does not point to dhcpv6 stateless information request; it points to a different condition. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

C:

That diagnosis belongs to dhcpv6 relay destination, while the observation at the Foothill municipal site points to dhcp declined conflicts.

D:

The observation at the Foothill municipal site does not point to ipv4 dhcp relay for remote server; it points to a different condition. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

Question 383

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 underlying technical condition best accounts for this evidence?

  1. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation.
  2. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.
  3. Event-only syslog messages do not provide the periodic operational counter series requested.
  4. Client DHCP broadcasts are not forwarded across the router to the remote DHCP service.

Explanation

Correct Answer

B:

The evidence at the Silverstream data center supports this condition: Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. The associated fix is: Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.

Incorrect Answers

A:

That diagnosis belongs to syslog timestamp correlation, while the observation at the Silverstream data center points to dhcpv6 stateless information request.

C:

This diagnoses a different mechanism: Event-only syslog messages do not provide the periodic operational counter series requested. The reported symptom at the Silverstream data center instead concerns dhcpv6 stateless information request.

D:

That diagnosis belongs to ipv4 dhcp relay for remote server, while the observation at the Silverstream data center points to dhcpv6 stateless information request.

Question 384

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 underlying technical condition best accounts for this evidence?

  1. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.
  2. The DHCP pool includes addresses reserved for devices that are configured manually.
  3. Unrestricted debug processing is consuming resources that the routing device needs for production forwarding and control.
  4. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation.

Explanation

Correct Answer

A:

Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. That explains the specific symptom at the Brookstone distribution branch. A direct corrective action is: Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.

Incorrect Answers

B:

That diagnosis belongs to dhcp excluded-address pool, while the observation at the Brookstone distribution branch points to dhcpv6 stateless information request.

C:

The observation at the Brookstone distribution branch does not point to conditional debug and router load; it points to a different condition. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

D:

This diagnoses a different mechanism: Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation. The reported symptom at the Brookstone distribution branch instead concerns dhcpv6 stateless information request.

Question 385

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 underlying technical condition best accounts for this evidence?

  1. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.
  2. Client DHCP broadcasts are not forwarded across the router to the remote DHCP service.
  3. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation.
  4. Unrestricted debug processing is consuming resources that the routing device needs for production forwarding and control.

Explanation

Correct Answer

A:

The evidence at the Southridge banking office supports this condition: The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. The associated fix is: Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.

Incorrect Answers

B:

This diagnoses a different mechanism: Client DHCP broadcasts are not forwarded across the router to the remote DHCP service. The reported symptom at the Southridge banking office instead concerns dhcpv6 relay destination.

C:

That diagnosis belongs to syslog timestamp correlation, while the observation at the Southridge banking office points to dhcpv6 relay destination.

D:

The observation at the Southridge banking office does not point to conditional debug and router load; it points to a different condition. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

Question 386

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 underlying technical condition best accounts for this evidence?

  1. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.
  2. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.
  3. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.
  4. The remote logging level filters less-severe events before they are forwarded.

Explanation

Correct Answer

A:

This diagnosis fits the symptoms at the Lakeside transit hub. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. The remedial action is: Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.

Incorrect Answers

B:

The observation at the Lakeside transit hub does not point to dhcp declined conflicts; it points to a different condition. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

C:

This diagnoses a different mechanism: Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. The reported symptom at the Lakeside transit hub instead concerns dhcpv6 relay destination.

D:

That diagnosis belongs to syslog severity threshold, while the observation at the Lakeside transit hub points to dhcpv6 relay destination.

Question 387

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 underlying technical condition best accounts for this evidence?

  1. Event-only syslog messages do not provide the periodic operational counter series requested.
  2. Required DHCP relay-agent location information is missing from forwarded requests.
  3. Unrestricted debug processing is consuming resources that the routing device needs for production forwarding and control.
  4. The remote logging level filters less-severe events before they are forwarded.

Explanation

Correct Answer

B:

This diagnosis fits the symptoms at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests. The remedial action is: Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.

Incorrect Answers

A:

This diagnoses a different mechanism: Event-only syslog messages do not provide the periodic operational counter series requested. The reported symptom at the Pinecrest freight terminal instead concerns dhcp option 82 relay metadata.

C:

The observation at the Pinecrest freight terminal does not point to conditional debug and router load; it points to a different condition. Required DHCP relay-agent location information is missing from forwarded requests.

D:

This diagnoses a different mechanism: The remote logging level filters less-severe events before they are forwarded. The reported symptom at the Pinecrest freight terminal instead concerns dhcp option 82 relay metadata.

Question 388

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 underlying technical condition best accounts for this evidence?

  1. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.
  2. Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation.
  3. Unrestricted debug processing is consuming resources that the routing device needs for production forwarding and control.
  4. Required DHCP relay-agent location information is missing from forwarded requests.

Explanation

Correct Answer

D:

The evidence at the Westlake utility network supports this condition: Required DHCP relay-agent location information is missing from forwarded requests. The associated fix is: Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.

Incorrect Answers

A:

The observation at the Westlake utility network does not point to dhcpv6 relay destination; it points to a different condition. Required DHCP relay-agent location information is missing from forwarded requests.

B:

This diagnoses a different mechanism: Unsynchronized device time makes otherwise collected logs unreliable for cross-device event correlation. The reported symptom at the Westlake utility network instead concerns dhcp option 82 relay metadata.

C:

That diagnosis belongs to conditional debug and router load, while the observation at the Westlake utility network points to dhcp option 82 relay metadata.

Question 389

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 underlying technical condition best accounts for this evidence?

  1. The flow record and exporter are configured but no active monitor captures the desired interface traffic.
  2. Isolated interface statistics do not explain the combined endpoint, device and network symptoms.
  3. The active probe uses the wrong routing context and cannot take the same path as customer traffic.
  4. A successful echo test confirms reachability but does not capture the application's jitter requirements.

Explanation

Correct Answer

C:

The active probe uses the wrong routing context and cannot take the same path as customer traffic. That explains the specific symptom at the Bluewater clinical network. A direct corrective action is: Set the IP SLA operation's source interface or VRF context to the intended customer routing table.

Incorrect Answers

A:

That diagnosis belongs to flexible netflow monitor attachment, while the observation at the Bluewater clinical network points to ip sla source interface in vrf.

B:

The observation at the Bluewater clinical network does not point to catalyst center assurance path health; it points to a different condition. The active probe uses the wrong routing context and cannot take the same path as customer traffic.

D:

That diagnosis belongs to ip sla jitter versus simple ping, while the observation at the Bluewater clinical network points to ip sla source interface in vrf.

Question 390

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 underlying technical condition best accounts for this evidence?

  1. Isolated interface statistics do not explain the combined endpoint, device and network symptoms.
  2. The router considers the directly reachable gateway healthy even though the desired remote path is unavailable.
  3. The active probe uses the wrong routing context and cannot take the same path as customer traffic.
  4. The flow record and exporter are configured but no active monitor captures the desired interface traffic.

Explanation

Correct Answer

C:

The evidence at the Cedarfield retail branch supports this condition: The active probe uses the wrong routing context and cannot take the same path as customer traffic. The associated fix is: Set the IP SLA operation's source interface or VRF context to the intended customer routing table.

Incorrect Answers

A:

This diagnoses a different mechanism: Isolated interface statistics do not explain the combined endpoint, device and network symptoms. The reported symptom at the Cedarfield retail branch instead concerns ip sla source interface in vrf.

B:

That diagnosis belongs to ip sla object tracking backup routing, while the observation at the Cedarfield retail branch points to ip sla source interface in vrf.

D:

This diagnoses a different mechanism: The flow record and exporter are configured but no active monitor captures the desired interface traffic. The reported symptom at the Cedarfield retail branch instead concerns ip sla source interface in vrf.