Top 20 TCP/IP Protocols You Must Know for Networking Jobs

Networking has evolved beyond cables and routers; it's now the backbone of cloud computing, remote work, IoT, 5G, and zero-trust architectures. According to a 2025 report by Cisco, network traffic is expected to surpass 600 exabytes per month, driven by AI workloads, hybrid infrastructures, and edge computing.  Amidst this growth, TCP/IP protocols remain the foundation, …

What is a Three-Way Handshake?

Introduction of Three-Way Handshake The three-way handshake, also known as the TCP handshake, is a method used in network communication protocols, particularly in the TCP (Transmission Control Protocol). It involves the exchange of three distinct messages between the client and server to guarantee a secure and synchronized connection before data transmission begins. The TCP handshake …

What is Transport Layer in OSI Model?

The Transport Layer is the fourth layer within the OSI (Open Systems Interconnection) model. It serves as a conceptual framework that establishes standardized functionalities for a communication system on a network. This layer is responsible for secure and efficient data transmission between hosts or devices on a network. It ensures that data is transferred error-free, in the …