Cisco Certified Network Associate (CCNA) Practice Exam

Which K value metrics are set as default in EIGRP?

1. Bandwidth and Load

2. Delay and Reliability

3. Bandwidth and Delay

4. Load and MTU

The correct answer is: Bandwidth and Delay

The correct answer is Bandwidth and Delay. In Enhanced Interior Gateway Routing Protocol (EIGRP), the default K values that are used in the metric calculation are set for bandwidth and delay. EIGRP uses a composite metric to determine the best route to a destination. This metric is calculated using several components, including bandwidth, delay, load, reliability, and Maximum Transmission Unit (MTU). However, the default settings prioritize bandwidth and delay, reflecting the importance of these factors in determining the quality of a path for routing decisions. By using bandwidth and delay, EIGRP can effectively evaluate the quality of the route based on the speed of the link (bandwidth) and the latency associated with the route (delay). This approach allows EIGRP to efficiently select the most optimal route in a network. Other metrics such as load and reliability can also be included in the metric calculation if configured, but they are not part of the default setting that EIGRP uses to compute its best paths.