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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 64

Question 630

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 continuing operational control is most directly relevant to preventing this problem?

  1. Compare AS identifiers across both ends during adjacency provisioning.
  2. Review key rotation windows and both ends of EIGRP authentication policies together.
  3. Check feasibility and load-sharing results after metric tuning.
  4. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.

Explanation

Correct Answer

A:

At the Silverstream data center, this continuing check directly limits recurrence of the observed failure. Compare AS identifiers across both ends during adjacency provisioning. The underlying problem is: EIGRP peers in different AS configurations will not establish the intended neighbor relationship.

Incorrect Answers

B:

This would manage a different failure pattern. The adjacency rejects peer packets because their authentication settings do not agree. It is not the most direct recurring check for eigrp as mismatch at the Silverstream data center.

C:

That safeguard protects against eigrp variance traffic sharing, not the concrete risk described at the Silverstream data center. EIGRP peers in different AS configurations will not establish the intended neighbor relationship.

D:

This is useful for another concern: Monitor topology-table feasibility after bandwidth or delay changes affect route metrics. It does not continuously test eigrp as mismatch at the Silverstream data center.

Question 631

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 continuing operational control is most directly relevant to preventing this problem?

  1. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.
  2. Audit passive-interface defaults and explicit transit exceptions after deployments.
  3. Check feasibility and load-sharing results after metric tuning.
  4. Review key rotation windows and both ends of EIGRP authentication policies together.

Explanation

Correct Answer

D:

The safeguard follows the failure mechanism at the Lakeside transit hub. Review key rotation windows and both ends of EIGRP authentication policies together.

Incorrect Answers

A:

That safeguard protects against eigrp feasible successor inequality, not the concrete risk described at the Lakeside transit hub. The adjacency rejects peer packets because their authentication settings do not agree.

B:

This is useful for another concern: Audit passive-interface defaults and explicit transit exceptions after deployments. It does not continuously test eigrp authentication mismatch at the Lakeside transit hub.

C:

This would manage a different failure pattern. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. It is not the most direct recurring check for eigrp authentication mismatch at the Lakeside transit hub.

Question 632

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 continuing operational control is most directly relevant to preventing this problem?

  1. Review stub declarations and query boundaries as spoke sites are added.
  2. Control and document EIGRP delay values instead of using them as untracked tuning knobs.
  3. Audit passive-interface defaults and explicit transit exceptions after deployments.
  4. Review key rotation windows and both ends of EIGRP authentication policies together.

Explanation

Correct Answer

D:

This control monitors the relevant configuration or operational behavior at the Southridge banking office. Review key rotation windows and both ends of EIGRP authentication policies together. It targets the condition described in the stem.

Incorrect Answers

A:

This would manage a different failure pattern. The leaf is participating in a query domain larger than its topology role requires. It is not the most direct recurring check for eigrp authentication mismatch at the Southridge banking office.

B:

That safeguard protects against eigrp delay in composite metric, not the concrete risk described at the Southridge banking office. The adjacency rejects peer packets because their authentication settings do not agree.

C:

This is useful for another concern: Audit passive-interface defaults and explicit transit exceptions after deployments. It does not continuously test eigrp authentication mismatch at the Southridge banking office.

Question 633

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 continuing operational control is most directly relevant to preventing this problem?

  1. Audit passive-interface defaults and explicit transit exceptions after deployments.
  2. Compare AS identifiers across both ends during adjacency provisioning.
  3. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.
  4. Check feasibility and load-sharing results after metric tuning.

Explanation

Correct Answer

A:

At the Westlake utility network, this continuing check directly limits recurrence of the observed failure. Audit passive-interface defaults and explicit transit exceptions after deployments. The underlying problem is: Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

Incorrect Answers

B:

This would manage a different failure pattern. EIGRP peers in different AS configurations will not establish the intended neighbor relationship. It is not the most direct recurring check for eigrp passive-interface adjacency at the Westlake utility network.

C:

That safeguard protects against eigrp feasible successor inequality, not the concrete risk described at the Westlake utility network. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

D:

This is useful for another concern: Check feasibility and load-sharing results after metric tuning. It does not continuously test eigrp passive-interface adjacency at the Westlake utility network.

Question 634

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 continuing operational control is most directly relevant to preventing this problem?

  1. Review stub declarations and query boundaries as spoke sites are added.
  2. Audit passive-interface defaults and explicit transit exceptions after deployments.
  3. Control and document EIGRP delay values instead of using them as untracked tuning knobs.
  4. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.

Explanation

Correct Answer

B:

At the Pinecrest freight terminal, this continuing check directly limits recurrence of the observed failure. Audit passive-interface defaults and explicit transit exceptions after deployments. The underlying problem is: Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

Incorrect Answers

A:

That safeguard protects against eigrp query scope using stub, not the concrete risk described at the Pinecrest freight terminal. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

C:

This would manage a different failure pattern. The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. It is not the most direct recurring check for eigrp passive-interface adjacency at the Pinecrest freight terminal.

D:

That safeguard protects against eigrp feasible successor inequality, not the concrete risk described at the Pinecrest freight terminal. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required.

Question 635

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 continuing operational control is most directly relevant to preventing this problem?

  1. Control and document EIGRP delay values instead of using them as untracked tuning knobs.
  2. Review stub declarations and query boundaries as spoke sites are added.
  3. Check feasibility and load-sharing results after metric tuning.
  4. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.

Explanation

Correct Answer

D:

This control monitors the relevant configuration or operational behavior at the Cedarfield retail branch. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics. It targets the condition described in the stem.

Incorrect Answers

A:

This would manage a different failure pattern. The EIGRP route metric reflects interface delay as well as bandwidth under standard metric settings. It is not the most direct recurring check for eigrp feasible successor inequality at the Cedarfield retail branch.

B:

That safeguard protects against eigrp query scope using stub, not the concrete risk described at the Cedarfield retail branch. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100.

C:

This is useful for another concern: Check feasibility and load-sharing results after metric tuning. It does not continuously test eigrp feasible successor inequality at the Cedarfield retail branch.

Question 636

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 continuing operational control is most directly relevant to preventing this problem?

  1. Check feasibility and load-sharing results after metric tuning.
  2. Audit passive-interface defaults and explicit transit exceptions after deployments.
  3. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.
  4. Control and document EIGRP delay values instead of using them as untracked tuning knobs.

Explanation

Correct Answer

C:

The safeguard follows the failure mechanism at the Bluewater clinical network. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.

Incorrect Answers

A:

This is useful for another concern: Check feasibility and load-sharing results after metric tuning. It does not continuously test eigrp feasible successor inequality at the Bluewater clinical network.

B:

This would manage a different failure pattern. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required. It is not the most direct recurring check for eigrp feasible successor inequality at the Bluewater clinical network.

D:

This is useful for another concern: Control and document EIGRP delay values instead of using them as untracked tuning knobs. It does not continuously test eigrp feasible successor inequality at the Bluewater clinical network.

Question 637

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 continuing operational control is most directly relevant to preventing this problem?

  1. Compare AS identifiers across both ends during adjacency provisioning.
  2. Review stub declarations and query boundaries as spoke sites are added.
  3. Check feasibility and load-sharing results after metric tuning.
  4. Review key rotation windows and both ends of EIGRP authentication policies together.

Explanation

Correct Answer

B:

At the Harborview media campus, this continuing check directly limits recurrence of the observed failure. Review stub declarations and query boundaries as spoke sites are added. The underlying problem is: The leaf is participating in a query domain larger than its topology role requires.

Incorrect Answers

A:

That safeguard protects against eigrp as mismatch, not the concrete risk described at the Harborview media campus. The leaf is participating in a query domain larger than its topology role requires.

C:

This would manage a different failure pattern. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance. It is not the most direct recurring check for eigrp query scope using stub at the Harborview media campus.

D:

That safeguard protects against eigrp authentication mismatch, not the concrete risk described at the Harborview media campus. The leaf is participating in a query domain larger than its topology role requires.

Question 638

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 continuing operational control is most directly relevant to preventing this problem?

  1. Review stub declarations and query boundaries as spoke sites are added.
  2. Compare AS identifiers across both ends during adjacency provisioning.
  3. Control and document EIGRP delay values instead of using them as untracked tuning knobs.
  4. Audit passive-interface defaults and explicit transit exceptions after deployments.

Explanation

Correct Answer

A:

This control monitors the relevant configuration or operational behavior at the Ironwood training campus. Review stub declarations and query boundaries as spoke sites are added. It targets the condition described in the stem.

Incorrect Answers

B:

That safeguard protects against eigrp as mismatch, not the concrete risk described at the Ironwood training campus. The leaf is participating in a query domain larger than its topology role requires.

C:

This is useful for another concern: Control and document EIGRP delay values instead of using them as untracked tuning knobs. It does not continuously test eigrp query scope using stub at the Ironwood training campus.

D:

This would manage a different failure pattern. Passive-interface suppresses routing-neighbor discovery where an EIGRP adjacency is required. It is not the most direct recurring check for eigrp query scope using stub at the Ironwood training campus.

Question 639

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 continuing operational control is most directly relevant to preventing this problem?

  1. Check feasibility and load-sharing results after metric tuning.
  2. Monitor topology-table feasibility after bandwidth or delay changes affect route metrics.
  3. Audit passive-interface defaults and explicit transit exceptions after deployments.
  4. Review stub declarations and query boundaries as spoke sites are added.

Explanation

Correct Answer

A:

At the Hillcrest research lab, this continuing check directly limits recurrence of the observed failure. Check feasibility and load-sharing results after metric tuning. The underlying problem is: Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.

Incorrect Answers

B:

This would manage a different failure pattern. The alternate path fails the strict EIGRP feasibility condition because 130 is not below 100. It is not the most direct recurring check for eigrp variance traffic sharing at the Hillcrest research lab.

C:

That safeguard protects against eigrp passive-interface adjacency, not the concrete risk described at the Hillcrest research lab. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.

D:

This is useful for another concern: Review stub declarations and query boundaries as spoke sites are added. It does not continuously test eigrp variance traffic sharing at the Hillcrest research lab.

Question 640

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 continuing operational control is most directly relevant to preventing this problem?

  1. Review stub declarations and query boundaries as spoke sites are added.
  2. Review key rotation windows and both ends of EIGRP authentication policies together.
  3. Check feasibility and load-sharing results after metric tuning.
  4. Control and document EIGRP delay values instead of using them as untracked tuning knobs.

Explanation

Correct Answer

C:

This control monitors the relevant configuration or operational behavior at the Northport logistics site. Check feasibility and load-sharing results after metric tuning. It targets the condition described in the stem.

Incorrect Answers

A:

That safeguard protects against eigrp query scope using stub, not the concrete risk described at the Northport logistics site. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.

B:

This is useful for another concern: Review key rotation windows and both ends of EIGRP authentication policies together. It does not continuously test eigrp variance traffic sharing at the Northport logistics site.

D:

That safeguard protects against eigrp delay in composite metric, not the concrete risk described at the Northport logistics site. Default EIGRP forwarding does not use the desired unequal-cost feasible alternate without appropriate variance.