EIGRP CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 6)

Questions 26–30

1. 26expert · hard

   A network has a hub-and-spoke topology with multiple remote sites. The remote routers are configured as EIGRP stubs. A link between two remote sites fails, causing a route change. What is the impact on the hub router's DUAL computation?

   • AThe hub router will not receive any queries from the remote sites because they are stubs.
   • BThe hub router will receive an update from the remote site and will need to recompute its routing table.
   • CThe hub router will not be affected because the remote sites are not directly connected.
   • DThe hub router will receive queries from the remote sites and must reply, increasing its CPU usage.
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2. 27expert · hard

   An engineer is troubleshooting an EIGRP network where unequal-cost load balancing is not working as expected. The successor route has a metric of 200, and a feasible successor has a metric of 250. The variance is set to 2. The feasible successor is not being installed in the routing table. What is the most likely reason?

   • AThe maximum-paths limit is set to 1.
   • BThe K-values are mismatched between the routers.
   • CThe variance is set too low; it should be 3 to include the 250 metric path.
   • DThe feasible successor's reported distance is greater than the successor's feasible distance.
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4. 28expert · hard

   An EIGRP network is experiencing frequent neighbor resets. The logs show that the hold timer is expiring. The link is a satellite link with high latency and occasional packet loss. The engineer has already increased the hold timer to 30 seconds, but the issue persists. What is the next best step to stabilize the adjacency?

   • AAdjust the EIGRP retransmission timeout and the number of retransmissions for reliable packets.
   • BIncrease the hello timer to 10 seconds and the hold timer to 30 seconds.
   • CDisable EIGRP on the satellite link and use a static route.
   • DUse the 'eigrp log-neighbor-changes' command to get more details.
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5. 29expert · hard

   A network architect is designing a large EIGRP network with thousands of routes. The architect is concerned about the time it takes for DUAL to converge when a route is lost. Which combination of features will most effectively reduce convergence time?

   • AUse multiple EIGRP processes to split the routing table.
   • BIncrease the hello timer and hold timer on all routers.
   • CRoute summarization and stub routers.
   • DEnable EIGRP fast convergence by setting the K-values to include load and reliability.
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6. 30expert · medium

   A router has two paths to a destination. Path 1 has a feasible distance of 100 and a reported distance of 80. Path 2 has a feasible distance of 120 and a reported distance of 90. Which path will be selected as the successor, and why?

   • ABoth paths are equally preferred because they meet the feasibility condition.
   • BPath 2, because it has a lower reported distance.
   • CPath 1, because it has the lower feasible distance.
   • DPath 2, because it has a higher feasible distance, which indicates a more stable route.
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