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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 4

Question 30

At the Silverstream data center, EIGRP hellos pass across the transit link, yet R-SIL-PE1 never forms a neighbor with R-RIV-PE2; the peers use different EIGRP AS numbers. Which operational change most directly addresses the fault described?

  1. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  2. Make the EIGRP authentication mode and key configuration consistent on both ends.
  3. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  4. Configure matching EIGRP autonomous-system values for the participating adjacency.

Explanation

Correct Answer

D:

The fault at the Silverstream data center has a specific cause. EIGRP peers in different AS configurations will not establish the intended neighbor relationship. Configure matching EIGRP autonomous-system values for the participating adjacency. Confirm success against this result: The correct EIGRP neighbor appears and the expected routes are learned.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100. The stated evidence at the Silverstream data center instead concerns eigrp as mismatch.

B:

This could help where eigrp authentication mismatch is the issue, but not for the evidence reported at the Silverstream data center. EIGRP peers in different AS configurations will not establish the intended neighbor relationship.

C:

That change targets eigrp passive-interface adjacency, not the reported eigrp as mismatch fault at the Silverstream data center. EIGRP peers in different AS configurations will not establish the intended neighbor relationship.

Question 31

At the Lakeside transit hub, R-LAK-CORE1 and R-EAST-EDGE2 exchange EIGRP hello packets but authentication failures prevent the neighbor from coming up. Which operational change most directly addresses the fault described?

  1. Make the EIGRP authentication mode and key configuration consistent on both ends.
  2. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.
  3. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  4. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.

Explanation

Correct Answer

A:

At the Lakeside transit hub, the evidence points to a concrete mechanism rather than a generic outage. The adjacency rejects peer packets because their authentication settings do not agree. Make the EIGRP authentication mode and key configuration consistent on both ends. Confirm it by checking that the EIGRP neighbor forms without authentication errors and intended prefixes arrive.

Incorrect Answers

B:

This is appropriate for a different routing or network-control issue: The leaf is participating in a query domain larger than its topology role requires. The stated evidence at the Lakeside transit hub instead concerns eigrp authentication mismatch.

C:

This could help where eigrp delay in composite metric is the issue, but not for the evidence reported at the Lakeside transit hub. The adjacency rejects peer packets because their authentication settings do not agree.

D:

That change targets eigrp passive-interface adjacency, not the reported eigrp authentication mismatch fault at the Lakeside transit hub. The adjacency rejects peer packets because their authentication settings do not agree.

Question 32

At the Southridge banking office, R-SRG-EDGE1 and R-MPC-EDGE2 exchange EIGRP hello packets but authentication failures prevent the neighbor from coming up. Which operational change most directly addresses the fault described?

  1. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  2. Configure matching EIGRP autonomous-system values for the participating adjacency.
  3. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  4. Make the EIGRP authentication mode and key configuration consistent on both ends.

Explanation

Correct Answer

D:

Make the EIGRP authentication mode and key configuration consistent on both ends. That directly addresses the documented condition at the Southridge banking office: The adjacency rejects peer packets because their authentication settings do not agree. Confirmation should show that the EIGRP neighbor forms without authentication errors and intended prefixes arrive.

Incorrect Answers

A:

This could help where eigrp feasible successor inequality is the issue, but not for the evidence reported at the Southridge banking office. The adjacency rejects peer packets because their authentication settings do not agree.

B:

That change targets eigrp as mismatch, not the reported eigrp authentication mismatch fault at the Southridge banking office. The adjacency rejects peer packets because their authentication settings do not agree.

C:

This is appropriate for a different routing or network-control issue: The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. The stated evidence at the Southridge banking office instead concerns eigrp authentication mismatch.

Question 33

At the Westlake utility network, R-WLK-EDGE1 advertises connected networks locally but will not discover R-GRID-EDGE2 across the transit interface because that interface is passive. Which operational change most directly addresses the fault described?

  1. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  2. Configure matching EIGRP autonomous-system values for the participating adjacency.
  3. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.
  4. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing.

Explanation

Correct Answer

A:

The fault at the Westlake utility network has a specific cause. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive. Confirm success against this result: The transit EIGRP neighbor forms while user-facing access interfaces remain passive.

Incorrect Answers

B:

This could help where eigrp as mismatch is the issue, but not for the evidence reported at the Westlake utility network. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

C:

That change targets eigrp query scope using stub, not the reported eigrp passive-interface adjacency fault at the Westlake utility network. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

D:

This is appropriate for a different routing or network-control issue: Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. The stated evidence at the Westlake utility network instead concerns eigrp passive-interface adjacency.

Question 34

At the Pinecrest freight terminal, R-PIN-WAN1 advertises connected networks locally but will not discover R-PRT-WAN2 across the transit interface because that interface is passive. Which operational change most directly addresses the fault described?

  1. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  2. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  3. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.
  4. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.

Explanation

Correct Answer

A:

At the Pinecrest freight terminal, the evidence points to a concrete mechanism rather than a generic outage. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive. Confirm it by checking that the transit EIGRP neighbor forms while user-facing access interfaces remain passive.

Incorrect Answers

B:

This is appropriate for a different routing or network-control issue: The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. The stated evidence at the Pinecrest freight terminal instead concerns eigrp passive-interface adjacency.

C:

This could help where eigrp query scope using stub is the issue, but not for the evidence reported at the Pinecrest freight terminal. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

D:

That change targets eigrp feasible successor inequality, not the reported eigrp passive-interface adjacency fault at the Pinecrest freight terminal. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

Question 35

At the Cedarfield retail branch, a backup EIGRP path to 10.94.0.0/16 has reported distance 130 and the current feasible distance is 100; a technician labels it an immediately usable feasible successor. Which operational change most directly addresses the fault described?

  1. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  2. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  3. Configure matching EIGRP autonomous-system values for the participating adjacency.
  4. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.

Explanation

Correct Answer

B:

At the Cedarfield retail branch, the evidence points to a concrete mechanism rather than a generic outage. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible. Confirm it by checking that the topology table identifies only loop-free feasible successors meeting the inequality.

Incorrect Answers

A:

This could help where eigrp delay in composite metric is the issue, but not for the evidence reported at the Cedarfield retail branch. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100.

C:

This is appropriate for a different routing or network-control issue: EIGRP peers in different AS configurations will not establish the intended neighbor relationship. The stated evidence at the Cedarfield retail branch instead concerns eigrp feasible successor inequality.

D:

This could help where eigrp passive-interface adjacency is the issue, but not for the evidence reported at the Cedarfield retail branch. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100.

Question 36

At the Bluewater clinical network, a backup EIGRP path to 10.215.0.0/16 has reported distance 130 and the current feasible distance is 100; a technician labels it an immediately usable feasible successor. Which operational change most directly addresses the fault described?

  1. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing.
  2. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  3. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  4. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.

Explanation

Correct Answer

C:

At the Bluewater clinical network, the evidence points to a concrete mechanism rather than a generic outage. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible. Confirm it by checking that the topology table identifies only loop-free feasible successors meeting the inequality.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. The stated evidence at the Bluewater clinical network instead concerns eigrp feasible successor inequality.

B:

This could help where eigrp passive-interface adjacency is the issue, but not for the evidence reported at the Bluewater clinical network. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100.

D:

This is appropriate for a different routing or network-control issue: The leaf is participating in a query domain larger than its topology role requires. The stated evidence at the Bluewater clinical network instead concerns eigrp feasible successor inequality.

Question 37

At the Harborview media campus, a remote spoke R-INL-DIST2 receives broad EIGRP queries when a hub loses 10.127.0.0/16, leaving the route active for too long. Which operational change most directly addresses the fault described?

  1. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.
  2. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  3. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  4. Configure matching EIGRP autonomous-system values for the participating adjacency.

Explanation

Correct Answer

A:

At the Harborview media campus, the evidence points to a concrete mechanism rather than a generic outage. The leaf is participating in a query domain larger than its topology role requires. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements. Confirm it by checking that queries no longer unnecessarily propagate into the leaf while approved routes remain reachable.

Incorrect Answers

B:

This is appropriate for a different routing or network-control issue: The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. The stated evidence at the Harborview media campus instead concerns eigrp query scope using stub.

C:

This could help where eigrp passive-interface adjacency is the issue, but not for the evidence reported at the Harborview media campus. The leaf is participating in a query domain larger than its topology role requires.

D:

That change targets eigrp as mismatch, not the reported eigrp query scope using stub fault at the Harborview media campus. The leaf is participating in a query domain larger than its topology role requires.

Question 38

At the Ironwood training campus, a remote spoke R-CLR-RT2 receives broad EIGRP queries when a hub loses 10.248.0.0/16, leaving the route active for too long. Which operational change most directly addresses the fault described?

  1. Make the EIGRP authentication mode and key configuration consistent on both ends.
  2. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  3. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements.
  4. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.

Explanation

Correct Answer

C:

The fault at the Ironwood training campus has a specific cause. The leaf is participating in a query domain larger than its topology role requires. Configure appropriate EIGRP stub behavior on the leaf spoke and verify permitted route advertisements. Confirm success against this result: Queries no longer unnecessarily propagate into the leaf while approved routes remain reachable.

Incorrect Answers

A:

This could help where eigrp authentication mismatch is the issue, but not for the evidence reported at the Ironwood training campus. The leaf is participating in a query domain larger than its topology role requires.

B:

That change targets eigrp delay in composite metric, not the reported eigrp query scope using stub fault at the Ironwood training campus. The leaf is participating in a query domain larger than its topology role requires.

D:

This could help where eigrp feasible successor inequality is the issue, but not for the evidence reported at the Ironwood training campus. The leaf is participating in a query domain larger than its topology role requires.

Question 39

At the Hillcrest research lab, an alternate EIGRP route is feasible but has a higher metric and is not installed alongside the primary path as desired. Which operational change most directly addresses the fault described?

  1. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  2. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  3. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing.
  4. Make the EIGRP authentication mode and key configuration consistent on both ends.

Explanation

Correct Answer

C:

At the Hillcrest research lab, the evidence points to a concrete mechanism rather than a generic outage. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing. Confirm it by checking that the routing table installs the permitted unequal-cost feasible paths with expected ratios.

Incorrect Answers

A:

This is appropriate for a different routing or network-control issue: The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. The stated evidence at the Hillcrest research lab instead concerns eigrp variance traffic sharing.

B:

This could help where eigrp feasible successor inequality is the issue, but not for the evidence reported at the Hillcrest research lab. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.

D:

This is appropriate for a different routing or network-control issue: The adjacency rejects peer packets because their authentication settings do not agree. The stated evidence at the Hillcrest research lab instead concerns eigrp variance traffic sharing.

Question 40

At the Northport logistics site, an alternate EIGRP route is feasible but has a higher metric and is not installed alongside the primary path as desired. Which operational change most directly addresses the fault described?

  1. Evaluate the reported-distance-less-than-feasible-distance condition before treating a backup as feasible.
  2. Remove passive-interface status from the legitimate EIGRP transit port, keeping host-only interfaces passive.
  3. Assess the interface delay contribution to the EIGRP composite metric and set it deliberately.
  4. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing.

Explanation

Correct Answer

D:

At the Northport logistics site, the evidence points to a concrete mechanism rather than a generic outage. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. Configure EIGRP variance within the feasible-path and feasible-distance limitations for unequal-cost load balancing. Confirm it by checking that the routing table installs the permitted unequal-cost feasible paths with expected ratios.

Incorrect Answers

A:

That change targets eigrp feasible successor inequality, not the reported eigrp variance traffic sharing fault at the Northport logistics site. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.

B:

This is appropriate for a different routing or network-control issue: Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required. The stated evidence at the Northport logistics site instead concerns eigrp variance traffic sharing.

C:

This could help where eigrp delay in composite metric is the issue, but not for the evidence reported at the Northport logistics site. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.