What is OSPF and how does it work?

Описание: Is the CCNA worth it? Yes, the CCNA is definitely worth it — it’s one of the best certifications a network administrator could earn at any point in their career. The CCNA is worth it because Cisco technology provides service provider and enterprise router solutions to nearly 40% of the world. Of course, there are plenty of non-Cisco networks, but there’s basically no other certification that can all at once prepare you for all the devices and jobs that the CCNA does: https://training.cbt.gg/33i

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