Exam 350-401 topic 1 question 490 discussion

CEF: The forwarding table is created in advance. All packets are switched using hardware. PS: The router processor is involved with every forwarding decision. All forwarding decisions are made in software. ADMIN please fix that. Thank you!

(CEF) Cisco Express Forwarding (also known as topology based switching): Forwarding table created in hardware beforehand. All packets will be switched using hardware. This is the fastest method but there are some limitations. Multilayer switches and routers use CEF. Process switching: All packets are examined by the CPU and all forwarding decisions are made in software…very slow!

given answer is incorrect Cisco Express Forwarding: - The forwarding table is created in advance - All packets are switched using hardware Process Switching: - The router processor is involved with every forwarding decision - All forwarding decisions are made in software -CEF builds a forwarding table (FIB) in advance, which contains precomputed next-hop information for efficient packet forwarding. -CEF leverages hardware-based switching such as ASICs in (Purpose-Made) to forward packets quickly and efficiently. -In process switching, the router’s main CPU (router processor) is directly involved in making forwarding decisions for each packet. -Process s´Switching relies entirely on software-based forwarding decisions

Correct

So many easy questions with wrong answers, people screaming in the comments to change answers, not only you don't do that, but you also have the audacity to ask $200 for 3 months access. Not to mention the "100% free" label.

CEF all packet are switched using Hardware

Interestingly two of the blocks are practically saying the same thing

There are different switching methods to forward IP packets. Here are the different switching options: Process switching: All packets are examined by the CPU and all forwarding decisions are made in software…very slow! Fast switching (also known as route caching): The first packet in a flow is examined by the CPU; the forwarding decision is cached in hardware for the next packets in the same flow. This is a faster method. (CEF) Cisco Express Forwarding (also known as topology based switching): Forwarding table created in hardware beforehand. All packets will be switched using hardware. This is the fastest method but there are some limitations. Multilayer switches and routers use CEF. https://safe.menlosecurity.com/https://networklessons.com/switching/cef-cisco-express-forwarding

cef support both software and hardware.

CEF - software PS - hardware

Men i wish Moderator updates the correct answers, this one almost got me but i knew the correct answer

CEF makes en hardware : https://networklessons.com/switching/cef-cisco-express-forwarding

I think CEF makes the forwarding decisions in hardware.