Cisco Certified Network Associate (CCNA) Practice Exam

How do you configure the hello interval for an EIGRP interface?

1. ipv6 hello-interval eigrp MINUTE SECOND

2. set hello-interval eigrp MINUTE SECOND

3. eigrp hello-interval MINUTE SECOND

4. ipv6 eigrp hello-interval MINUTE SECOND

The correct answer is: ipv6 hello-interval eigrp MINUTE SECOND

To configure the hello interval for an EIGRP interface, the correct command necessitates specifying the desired time interval, and this is done in the context of IPv6 routing. The command that utilizes the correct syntax and context is designed to define how often hello packets are sent on an EIGRP-enabled interface, which is crucial for maintaining neighbor relationships and ensuring efficient routing adjustments. In this scenario, the command must start with "ipv6" to indicate that the configuration is for an IPv6 network. Following that, the command specifies "hello-interval," which directly relates to adjusting the frequency of hello messages, and then the interval is defined in minutes and seconds. This level of granularity allows network administrators to fine-tune the timing based on their specific network requirements. Adjusting the hello interval can help optimize bandwidth utilization and enhance convergence times in a network, especially in dynamic environments where routing changes frequently. The need for the command to include "ipv6" indicates the specificity of this configuration to IPv6, and understanding this context is essential for successful EIGRP deployment in modern networks.