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looking for.Must-haveStrong networking competence, held in your hands rather than on paper. CCNA and well beyond it. You understand TCP/IP, routing and switching, IP addressing and subnetting, DNS, DHCP, NAT, and how they behave when they go wrong.Real troubleshooting instinct. Given a degraded link...

looking for.Must-haveStrong networking competence, held in your hands rather than on paper. CCNA and well beyond it. You understand TCP/IP, routing and switching, IP addressing and subnetting, DNS, DHCP, NAT, and how they behave when they go wrong.Real troubleshooting instinct. Given a degraded link or a dropped session, you know where to look and what to rule out.