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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 19

Question 180

At the Clearwater library district, R-CLW-EDGE1's IOS DHCP server assigns a lease in a range reserved for statically configured printers. Which operational change most directly addresses the fault described?

  1. Exclude the statically assigned address range from the IOS DHCP allocation pool.
  2. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.
  3. Synchronize network device clocks using approved time sources and include usable syslog timestamps.
  4. Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.

Explanation

Correct Answer

A:

The fault at the Clearwater library district has a specific cause. The DHCP pool includes addresses reserved for devices that are configured manually. Exclude the statically assigned address range from the IOS DHCP allocation pool. Confirm success against this result: New leases avoid excluded printer addresses while available dynamic addresses remain allocable.

Incorrect Answers

B:

This could help where dhcpv6 stateless information request is the issue, but not for the evidence reported at the Clearwater library district. The DHCP pool includes addresses reserved for devices that are configured manually.

C:

That change targets syslog timestamp correlation, not the reported dhcp excluded-address pool fault at the Clearwater library district. The DHCP pool includes addresses reserved for devices that are configured manually.

D:

This is appropriate for a different routing or network-control issue: Required DHCP relay-agent location information is missing from forwarded requests. The stated evidence at the Clearwater library district instead concerns dhcp excluded-address pool.

Question 181

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 operational change most directly addresses the fault described?

  1. Set the remote logging severity threshold to include the events needed by operations without overloading the collector.
  2. Configure supported model-driven telemetry or scheduled counter collection for the required performance paths.
  3. Use targeted conditional debugging, capture only needed events and disable debug promptly.
  4. Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources.

Explanation

Correct Answer

D:

At the Highland government office, the evidence points to a concrete mechanism rather than a generic outage. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources. Confirm it by checking that conflict counts stabilize and clients lease unique, reachable addresses without collisions.

Incorrect Answers

A:

That change targets syslog severity threshold, not the reported dhcp declined conflicts fault at the Highland government office. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

B:

This is appropriate for a different routing or network-control issue: Event-only syslog messages do not provide the periodic operational counter series requested. The stated evidence at the Highland government office instead concerns dhcp declined conflicts.

C:

This could help where conditional debug and router load is the issue, but not for the evidence reported at the Highland government office. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

Question 182

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 operational change most directly addresses the fault described?

  1. Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources.
  2. Configure the DHCP relay helper on the client-facing Layer 3 interface toward the authorized server.
  3. Configure supported model-driven telemetry or scheduled counter collection for the required performance paths.
  4. Set the remote logging severity threshold to include the events needed by operations without overloading the collector.

Explanation

Correct Answer

A:

Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources. That directly addresses the documented condition at the Foothill municipal site: Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. Confirmation should show that conflict counts stabilize and clients lease unique, reachable addresses without collisions.

Incorrect Answers

B:

That change targets ipv4 dhcp relay for remote server, not the reported dhcp declined conflicts fault at the Foothill municipal site. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

C:

This is appropriate for a different routing or network-control issue: Event-only syslog messages do not provide the periodic operational counter series requested. The stated evidence at the Foothill municipal site instead concerns dhcp declined conflicts.

D:

This could help where syslog severity threshold is the issue, but not for the evidence reported at the Foothill municipal site. Duplicate-address conflicts are withholding otherwise available pool addresses from assignment.

Question 183

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 operational change most directly addresses the fault described?

  1. Configure the DHCP relay helper on the client-facing Layer 3 interface toward the authorized server.
  2. Use targeted conditional debugging, capture only needed events and disable debug promptly.
  3. Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.
  4. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.

Explanation

Correct Answer

D:

The fault at the Silverstream data center has a specific cause. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate. Confirm success against this result: Hosts keep SLAAC addresses and receive the intended DHCPv6-provided DNS settings.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: Client DHCP broadcasts are not forwarded across the router to the remote DHCP service. The stated evidence at the Silverstream data center instead concerns dhcpv6 stateless information request.

B:

This could help where conditional debug and router load is the issue, but not for the evidence reported at the Silverstream data center. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

C:

That change targets dhcp option 82 relay metadata, not the reported dhcpv6 stateless information request fault at the Silverstream data center. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

Question 184

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 operational change most directly addresses the fault described?

  1. Synchronize network device clocks using approved time sources and include usable syslog timestamps.
  2. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.
  3. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.
  4. Exclude the statically assigned address range from the IOS DHCP allocation pool.

Explanation

Correct Answer

B:

The fault at the Brookstone distribution branch has a specific cause. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate. Confirm success against this result: Hosts keep SLAAC addresses and receive the intended DHCPv6-provided DNS settings.

Incorrect Answers

A:

That change targets syslog timestamp correlation, not the reported dhcpv6 stateless information request fault at the Brookstone distribution branch. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

C:

This could help where dhcpv6 relay destination is the issue, but not for the evidence reported at the Brookstone distribution branch. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

D:

That change targets dhcp excluded-address pool, not the reported dhcpv6 stateless information request fault at the Brookstone distribution branch. Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses.

Question 185

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 operational change most directly addresses the fault described?

  1. Configure the DHCP relay helper on the client-facing Layer 3 interface toward the authorized server.
  2. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.
  3. Investigate and clear resolved DHCP address conflicts only after correcting duplicate-address sources.
  4. Use targeted conditional debugging, capture only needed events and disable debug promptly.

Explanation

Correct Answer

B:

At the Southridge banking office, the evidence points to a concrete mechanism rather than a generic outage. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination. Confirm it by checking that clients obtain the expected DHCPv6 information or assignment through the correct relay endpoint.

Incorrect Answers

A:

This could help where ipv4 dhcp relay for remote server is the issue, but not for the evidence reported at the Southridge banking office. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

C:

This is appropriate for a different routing or network-control issue: Duplicate-address conflicts are withholding otherwise available pool addresses from assignment. The stated evidence at the Southridge banking office instead concerns dhcpv6 relay destination.

D:

This could help where conditional debug and router load is the issue, but not for the evidence reported at the Southridge banking office. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

Question 186

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 operational change most directly addresses the fault described?

  1. Configure the correct RA other-configuration flag and reachable stateless DHCPv6 service where appropriate.
  2. Configure the DHCP relay helper on the client-facing Layer 3 interface toward the authorized server.
  3. Use targeted conditional debugging, capture only needed events and disable debug promptly.
  4. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.

Explanation

Correct Answer

D:

The fault at the Lakeside transit hub has a specific cause. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination. Confirm success against this result: Clients obtain the expected DHCPv6 information or assignment through the correct relay endpoint.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: Hosts are not signaled to use DHCPv6 for auxiliary information despite having SLAAC addresses. The stated evidence at the Lakeside transit hub instead concerns dhcpv6 relay destination.

B:

This could help where ipv4 dhcp relay for remote server is the issue, but not for the evidence reported at the Lakeside transit hub. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

C:

That change targets conditional debug and router load, not the reported dhcpv6 relay destination fault at the Lakeside transit hub. The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected.

Question 187

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 operational change most directly addresses the fault described?

  1. Synchronize network device clocks using approved time sources and include usable syslog timestamps.
  2. Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.
  3. Exclude the statically assigned address range from the IOS DHCP allocation pool.
  4. Set the remote logging severity threshold to include the events needed by operations without overloading the collector.

Explanation

Correct Answer

B:

The fault at the Pinecrest freight terminal has a specific cause. Required DHCP relay-agent location information is missing from forwarded requests. Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata. Confirm success against this result: Server logs show validated relay-agent information and return the correct scope for the client segment.

Incorrect Answers

A:

That change targets syslog timestamp correlation, not the reported dhcp option 82 relay metadata fault at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests.

C:

This could help where dhcp excluded-address pool is the issue, but not for the evidence reported at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests.

D:

That change targets syslog severity threshold, not the reported dhcp option 82 relay metadata fault at the Pinecrest freight terminal. Required DHCP relay-agent location information is missing from forwarded requests.

Question 188

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 operational change most directly addresses the fault described?

  1. Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata.
  2. Exclude the statically assigned address range from the IOS DHCP allocation pool.
  3. Configure DHCPv6 relay on the client-facing interface toward the authorized server destination.
  4. Synchronize network device clocks using approved time sources and include usable syslog timestamps.

Explanation

Correct Answer

A:

Enable the approved relay-agent information handling and ensure the server trusts the intended relay metadata. That directly addresses the documented condition at the Westlake utility network: Required DHCP relay-agent location information is missing from forwarded requests. Confirmation should show that server logs show validated relay-agent information and return the correct scope for the client segment.

Incorrect Answers

B:

That change targets dhcp excluded-address pool, not the reported dhcp option 82 relay metadata fault at the Westlake utility network. Required DHCP relay-agent location information is missing from forwarded requests.

C:

This is appropriate for a different routing or network-control issue: The relay function required to forward DHCPv6 messages to a remote server is absent or misdirected. The stated evidence at the Westlake utility network instead concerns dhcp option 82 relay metadata.

D:

This could help where syslog timestamp correlation is the issue, but not for the evidence reported at the Westlake utility network. Required DHCP relay-agent location information is missing from forwarded requests.

Question 189

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 operational change most directly addresses the fault described?

  1. Use an IP SLA jitter operation appropriate to the traffic class rather than only binary reachability.
  2. Attach the intended Flexible NetFlow flow monitor in the appropriate direction on the actual traffic interface.
  3. Use Cisco Catalyst Center Assurance to correlate client or device health with path and connectivity observations.
  4. Set the IP SLA operation's source interface or VRF context to the intended customer routing table.

Explanation

Correct Answer

D:

The fault at the Bluewater clinical network has a specific cause. The active probe uses the wrong routing context and cannot take the same path as customer traffic. Set the IP SLA operation's source interface or VRF context to the intended customer routing table. Confirm success against this result: The VRF-scoped probe reaches the target and its measurements reflect the customer path.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: A successful echo test confirms reachability but does not capture the application's jitter requirements. The stated evidence at the Bluewater clinical network instead concerns ip sla source interface in vrf.

B:

This could help where flexible netflow monitor attachment is the issue, but not for the evidence reported at the Bluewater clinical network. The active probe uses the wrong routing context and cannot take the same path as customer traffic.

C:

That change targets catalyst center assurance path health, not the reported ip sla source interface in vrf fault at the Bluewater clinical network. The active probe uses the wrong routing context and cannot take the same path as customer traffic.

Question 190

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 operational change most directly addresses the fault described?

  1. Configure a mutually supported export protocol and record templates for the collector's parser.
  2. Use an IP SLA jitter operation appropriate to the traffic class rather than only binary reachability.
  3. Use Cisco Catalyst Center Assurance to correlate client or device health with path and connectivity observations.
  4. Set the IP SLA operation's source interface or VRF context to the intended customer routing table.

Explanation

Correct Answer

D:

At the Cedarfield retail branch, the evidence points to a concrete mechanism rather than a generic outage. The active probe uses the wrong routing context and cannot take the same path as customer traffic. Set the IP SLA operation's source interface or VRF context to the intended customer routing table. Confirm it by checking that the VRF-scoped probe reaches the target and its measurements reflect the customer path.

Incorrect Answers

A:

That change targets netflow v9 versus ipfix format, not the reported ip sla source interface in vrf fault 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 appropriate for a different routing or network-control issue: A successful echo test confirms reachability but does not capture the application's jitter requirements. The stated evidence at the Cedarfield retail branch instead concerns ip sla source interface in vrf.

C:

This could help where catalyst center assurance path health is the issue, but not for the evidence reported at the Cedarfield retail branch. The active probe uses the wrong routing context and cannot take the same path as customer traffic.