Which two solutions reduce EIGRP DUAL computations? (Choose two.)
- Reducing hello intervals
- Enabling EIGRP authentication
- Configuring equal-cost load balancing
- Implementing route summarization
- Configuring EIGRP stub routing
Explanation: According to the sources, route summarization and EIGRP stub routing are the two primary solutions used to optimize the DUAL process by limiting the propagation of query messages .
By implementing route summarization, an administrator reduces the number of specific prefixes in the routing table, which reduces the number of potential queries that neighbors must process when a route goes active .
Similarly, configuring EIGRP stub routing prevents non-stub routers from sending query messages to those stub routers, effectively limiting the query range, saving CPU cycles, and reducing resource utilization during DUAL computations .
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