Choose a Topic

Network types, OSI and TCP/IP models, layer functions, encapsulation, and protocol basics.

MAC addresses, framing, error detection, ARP, CSMA/CD, Ethernet, VLANs, and switching.

IPv4, IPv6, classful addressing, CIDR, subnetting, NAT, DHCP, and address types.

Static vs dynamic routing, RIP, OSPF, BGP, routing tables, algorithms, and inter-AS communication.

TCP 3-way handshake, connection teardown, flow control, congestion control, UDP, ports, and socket programming concepts.

DNS, HTTP/HTTPS, FTP, SMTP, POP3, IMAP, SSH, SNMP, and other key application layer protocols.

Firewalls, VPNs, TLS/SSL, IPSec, common attacks (DoS, MITM, sniffing), IDS/IPS, and security protocols.

Wi-Fi standards (802.11), frequency bands, CSMA/CA, WPA2/WPA3, Bluetooth, and cellular networks.

Routers, switches, hubs, bridges, firewalls, load balancers, proxy servers, and network topologies.

Parity, CRC, checksums, Hamming code, stop-and-wait, sliding window, Go-Back-N, and Selective Repeat.