15 CCNA 200-301 Exam Traps That Trip Up Candidates in 2026

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A guide outlines 15 common misconceptions that Cisco's CCNA 200-301 exam uses to catch unprepared candidates across all six domains. It covers Layer 2 topics such as spanning tree root bridge election, where the lowest Bridge ID wins rather than the highest priority. It also explains the difference between CDP and LLDP, port roles versus port states, and why EtherChannel fails when member interface settings do not match. Routing traps include OSPF's default reference bandwidth making Gigabit and Fast Ethernet links appear equal, and DR/BDR election favoring the highest priority. The guide stresses that understanding why wrong answers are wrong matters as much as knowing the correct ones.

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