Subnets vs VLANs
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TCP vs UDP Comparison
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Subnet Mask - Explained
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Layer 2 vs Layer 3 Switches
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VLAN : comprendre l'essentiel en 5 minutes
8:50
Power over Ethernet (PoE) - Explained
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VPN (Virtual Private Network) Explained
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Cisco Router and Switch Configuration Step by Step | Connect Cisco Router & Switch to Internet
6:35