Cisco Certified Network Associate (CCNA) Practice Exam

How do you manually configure a summary route on an EIGRP router?

1. (config)#ip summary-address eigrp AS NUMBER AND NETWORK AND SUBNETMASK

2. (config)#router eigrp AS NUMBER

3. (config)#ip route NETWORK SUBNETMASK NEXT_HOP

4. (config)#router eigrp NETWORK

The correct answer is: (config)#ip summary-address eigrp AS NUMBER AND NETWORK AND SUBNETMASK

Manually configuring a summary route on an EIGRP (Enhanced Interior Gateway Routing Protocol) router involves using the command that specifies the summary address along with the Autonomous System (AS) number and the appropriate network and subnet mask. The syntax provided in the correct option captures this requirement accurately. Using the command "ip summary-address eigrp AS NUMBER AND NETWORK AND SUBNETMASK" allows you to define a summarized route for multiple specific routes that fall under a common network segment. This consolidation helps improve routing efficiency and reduces the size of the routing table, which is especially beneficial in large networks. The importance of this summarization is that it allows for better resource management and less overhead in EIGRP by summarizing multiple routes into a single route advertisement instead of sending individual entries for each network. In contrast to the other options: - The command to enter the EIGRP router configuration mode is indicated but does not achieve the goal of summarization itself. - The command for configuring a static route simply creates a route to a specific next hop, rather than summarizing multiple networks. - Another configuration command also indicates entering the router EIGRP mode but misses the specific task of configuring a summary address. Thus, the correct answer effectively outlines the