Free Cisco SPRI 300-510 Actual Exam Questions - Question 11 Discussion

I ruled out anything about areas or LSAs for EIGRP since those are classic OSPF traits. Also, things like the use of DUAL definitely point to EIGRP, so that helped me match the right features quickly.

One quick way to separate these is by focusing on protocol type: EIGRP is a hybrid/proprietary protocol with features like DUAL and fast convergence, while OSPF is a pure link-state protocol that uses LSAs and areas for routing info. Also, OSPF (both v2 and v3) relies on cost as its metric based on bandwidth, whereas EIGRP uses a composite metric including bandwidth and delay. So anything mentioning LSAs or areas belongs to OSPF, and anything pointing to rapid topology changes with DUAL is definitely EIGRP. That should help confirm which characteristics go where.

I think one way to differentiate is by looking at how each protocol handles metrics and convergence. EIGRP uses composite metrics based on bandwidth and delay, which helps it calculate the best path quickly, while OSPF relies on cost based on interface bandwidth. So, any characteristic mentioning fast convergence or DUAL algorithm should go with EIGRP. Also, OSPF is link-state, so anything about LSAs or areas points to it. This way, you can rule out features that don’t match the core behavior of each protocol without memorizing every detail.

This drag and drop is confusing without the images. Anyone got a clear way to remember OSPF vs EIGRP features? My brain’s mixing them up.