350-401 · Question #275
350-401 Question #275: Real Exam Question with Answer & Explanation
The correct answer is C: The EIGRP metric Is calculated based on bandwidth and delay. The OSPF metric is calculated on. EIGRP vs. OSPF Metric Comparison Option C is correct because EIGRP's composite metric is calculated using bandwidth and delay by default (though it can also factor in load, reliability, and MTU), while OSPF uses cost, which is derived from bandwidth alone (specifically, 100 Mbps
Question
How does the EIGRP metric differ from the OSPF metric?
Options
- AThe EIGRP metric is calculated based on bandwidth only. The OSPF metric is calculated on
- BThe EIGRP metric is calculated based on delay only. The OSPF metric is calculated on
- CThe EIGRP metric Is calculated based on bandwidth and delay. The OSPF metric is calculated on
- DThe EIGRP metric Is calculated based on hop count and bandwidth. The OSPF metric is
Explanation
EIGRP vs. OSPF Metric Comparison
Option C is correct because EIGRP's composite metric is calculated using bandwidth and delay by default (though it can also factor in load, reliability, and MTU), while OSPF uses cost, which is derived from bandwidth alone (specifically, 100 Mbps divided by the interface bandwidth).
- Option A is wrong because EIGRP does not use bandwidth alone - delay is always part of the default calculation.
- Option B is wrong because EIGRP does not use delay alone - bandwidth is equally important in the formula.
- Option D is wrong because EIGRP does not use hop count; that is the metric for RIP, a distance-vector protocol.
🧠 Memory Tip: Think "EIGRP = B+D (Bandwidth + Delay)" and "OSPF = Cost (100/BW)". A helpful phrase: "EIGRP is Big on Detail" (Bandwidth + Delay), while OSPF keeps it simple with just cost based on bandwidth. Also remember: hop count = RIP, not EIGRP - don't let the distractors trick you!
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