Pbr, Routing, Dns, Http Protocol, Tcp/ip, SSL/TLS protocols, Reading and analysing log files, Active Directory, 3-way handshake, Layer 2 and 3, Diagnosing network latency and intermittent issues, Red Hat Linux fundamentals, Information Security Concepts, PAC files, Packet Analysis with tcpdump and Wireshark, WCCP, Endpoint application stack diagnostics and analysis for Windows Mac and Linux, MSSQL fundamentals, Networking fundamentals, Load Balancer Fundamentals, Windows and Linux memory dump capture and analysis