Which of the following is a hybrid routing protocol?
Which of the following is a hybrid routing protocol?
Community Votes
100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
This question tests protocol classification, and the trap is that BGP is often described as a path-vector protocol rather than a hybrid distance-vector/link-state protocol in standard CompTIA materials.
Network+ candidates most commonly identify EIGRP as the hybrid routing protocol listed, noting that it combines distance-vector and link-state features. Although some community comments mention BGP as a possible hybrid, the exam consensus and Professor Messer reference point to EIGRP (Option D).
The most common wrong answer is A (BGP), because some third-party textbooks such as Exam Cram and some Mike Myers notes label BGP as hybrid. In the CompTIA Network+ context, however, BGP is an exterior gateway path-vector protocol, while EIGRP is the expected hybrid protocol.
Community Discussion (5 comments)
Comments & Corrections
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Expert Analysis
Why the Answer Is Correct
EIGRP is the only option that classically blends characteristics of both distance-vector and link-state routing protocols. It uses the Diffusing Update Algorithm (DUAL) and maintains both a topology table and neighbor information, which is why CompTIA and many community answerers list EIGRP as the hybrid protocol.
The highest-voted community answers, including comment [4], state that "EIGRP is the only hybrid protocol listed here," and comment [3] reinforces that EIGRP combines features of both distance-vector and link-state protocols. This matches the suggested answer and the typical Network+ curriculum.
Why the Other Options Are Wrong
BGP is usually classified as an exterior gateway path-vector protocol, not as a hybrid protocol in the strict CompTIA sense. Comments [1] and [2] point out that some third-party authors call BGP hybrid, but this is not the convention used on the Network+ exam when EIGRP is present.
RIPv2 is a pure distance-vector protocol, and OSPF is a pure link-state protocol, so neither is hybrid. The option set is designed to test whether you can separate common classifications from fringe or vendor-specific descriptions.
Community Comment Notes
The top-liked answers consistently select D (EIGRP), and comment [4] directly states that EIGRP is the only hybrid protocol in the list. Comments [1] and [2] introduce confusion by quoting Mike Myers and Exam Cram as saying BGP is hybrid, but the reference in comment [5] to Professor Messer keeps EIGRP in the hybrid category.
A useful takeaway from the community discussion is that you must follow CompTIA’s official classification rather than memorizing one-off phrases from prep books. When the exam offers both BGP and EIGRP, EIGRP is the hybrid-protocol answer.
Official Reference
Exam Strategy
Use memorization anchors: RIPv2 equals distance-vector, OSPF equals link-state, EIGRP equals hybrid, and BGP equals path-vector/exterior gateway. If a third-party source calls BGP hybrid, ignore it for this type of question — on the CompTIA Network+ exam, EIGRP is the safe and intended hybrid choice.