| Topic | Post | Video |
|---|---|---|
| Computer network | Computer Network Tutorials - GeeksforGeeks | Computer Networks - Crash Course (Full Series) |
| Network topology | Types of Network Topology - GeeksforGeeks | Network Topologies Explained |
| Packet switching vs. Circuit switching | Difference Between Circuit Switching and Packet Switching | Circuit Switching vs Packet Switching |
| OSI model and TCP/IP model | OSI Model Explained - GeeksforGeeks | OSI Model Explained (Best Video) |
| Latency and Throughput | Latency vs Throughput | Latency vs Throughput vs Bandwidth |
| Topic | Post | Video |
|---|---|---|
| Client–server model and Peer-to-peer | Client-Server and Peer-to-Peer Networking | Client Server vs Peer-to-Peer |
| Domain Name System (DNS) | How DNS Works - beautifully illustrated | DNS Explained in 10 Minutes |
| Hypertext Transfer Protocol (HTTP) / HTTPS | HTTP vs HTTPS - GeeksforGeeks | HTTP Crash Course & Exploration |
| Email protocols – SMTP, IMAP, POP3 | SMTP, POP3, IMAP Explained | SMTP vs POP3 vs IMAP |
| File Transfer Protocol (FTP) and SFTP | FTP vs SFTP | FTP and SFTP Explained |
| Topic | Post | Video |
|---|---|---|
| Transmission Control Protocol (TCP) | TCP Explained - GeeksforGeeks | TCP Explained Visually |
| User Datagram Protocol (UDP) | UDP Explained | TCP vs UDP Comparison |
| Port (computer networking) | Well-Known Port Numbers | Ports Explained |
| Multiplexing, Flow control, Congestion control | TCP Flow & Congestion Control | TCP Congestion Control Explained |
| TCP congestion-avoidance algorithm | TCP Congestion Control - Wikipedia | TCP Congestion Control (Tahoe, Reno, NewReno, Cubic) |
| Topic | Post | Video |
|---|---|---|
| Internet Protocol (IP) (IPv4, IPv6) | IPv4 vs IPv6 - GeeksforGeeks | IPv4 vs IPv6 Explained |
| IP address and Subnetting | IP Subnetting Tutorial | Subnetting Mastery (Full Series) |
| Routing and Routing table | Routing Tables Explained | How Routing Tables Work |
| Routing protocols – RIP, OSPF, BGP | RIP vs OSPF vs BGP | RIP, OSPF, BGP Explained |
| ICMP (ping, traceroute) | ICMP Explained | Ping and Traceroute Explained |
| NAT (Network address translation) | How NAT Works | NAT Explained Visually |
| Topic | Post | Video |
|---|---|---|
| Data link layer | Data Link Layer - GeeksforGeeks | Data Link Layer Explained |
| Ethernet | Ethernet Tutorial | Ethernet Explained |
| MAC address | MAC Address Explained | What is a MAC Address? |
| Switching | Network Switches Explained | How a Switch Works |
| ARP (Address Resolution Protocol) | ARP Explained | ARP Explained Visually |
| Error detection and correction – Parity, Checksums, CRC | Error Detection and Correction | CRC, Checksum, Parity Explained |
| Topic | Post | Video |
|---|---|---|
| Physical layer | Physical Layer Introduction | Physical Layer Explained |
| Transmission medium (Twisted pair, Coaxial, Fiber optics) | Transmission Media | Guided vs Unguided Media |
| Wireless communication (Wi-Fi, Bluetooth, Cellular basics) | Wireless Communication Overview | Wi-Fi, Bluetooth, Cellular Basics |
| Bandwidth and Signal-to-noise ratio | Bandwidth vs SNR | Bandwidth and SNR Explained |
| Topic | Post | Video |
|---|---|---|
| LAN, WAN, MAN | Types of Computer Networks | LAN vs WAN vs MAN |
| Wi-Fi and IEEE 802.11 | IEEE 802.11 Standards Explained | Wi-Fi Standards Explained (802.11a/b/g/n/ac/ax) |
| Cellular network (intro level only) | Cellular Network Basics | How Cellular Networks Work |
| Topic | Post | Video |
|---|---|---|
| Computer security (overview) | Introduction to Network Security | Network Security Crash Course |
| Cryptography (basic concepts only) | Cryptography Basics | Cryptography Basics |
| TLS/SSL | How TLS Works | SSL/TLS Handshake Explained |
| Firewall (computing) | What is a Firewall? | How Firewalls Work |
| Virtual private network (VPN) | VPN Explained | VPNs Explained in 5 Minutes |