Tech Exam Prep

CCNA Exam Prep 14, Forwarding Methods — Process, Fast, CEF


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This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- Process switching is the slowest forwarding method because the router's main CPU must handle every packet individually.
- Fast switching improves performance by creating a route cache after the first packet of a flow is process-switched.
- Cisco Express Forwarding (CEF) is the default and fastest method on modern Cisco devices, using specialized hardware for lookups.
- CEF relies on two pre-populated data structures: the Forwarding Information Base (FIB), derived from the routing table, and the Adjacency Table, derived from the ARP cache.
- The CCNA exam tests your knowledge of the performance differences and the specific components of CEF, like the FIB and Adjacency Table.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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Tech Exam PrepBy Ran Chen, EA, CFP®