Concept of layering. LAN technologies (Ethernet).Flow and error control techniques,
Routers and routing algorithms (distance vector, link state).
TCP/UDP and Sockets, Congestion control.
Application layer protocols (DNS, SMTP, POP, FTP, HTTP).
Basics of Wi-Fi.
Network security: authentication, basics of public key and private key cryptography, digital signatures and certificates, Firewalls.
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