Network communication

Design 204 Introduction To Ip Address And Subnetting, Unicast, Multicast And Broadcast Communication Quiz Test
CCNA

Introduction to IP address and Subnetting, Unicast, Multicast and Broadcast Communication Quiz Test

🚀 Ready to Test Your Networking Knowledge? 🚀 📢 Take the “Introduction to IP Addresses, Subnetting, and Communication Types” Quiz Now! Are you confident in your understanding of IP addressing, subnetting, and the differences between unicast, multicast, and broadcast communication? Prove your skills and challenge yourself with this quick, interactive quiz! ✅ What’s in it for you? 🔥 Why Wait?Whether you’re prepping...

Mujtaba Khattak 14 min read
Quiz Test: Transmission Control Protocol
CCNA

Quiz Test: Transmission Control Protocol (TCP) and TCP Protocl Suit

Test your knowledge with our comprehensive Quiz Test: Transmission Control Protocol. Learn the essentials of TCP and enhance your networking skills with detailed explanations. TCP/IP Model Certification Exam Submit Answers Reset Test

Asad Ijaz 5 min read
Ppp Frame Structure With Six Labeled Fields
CCNA

PPP Components: Layered Architecture and Frame Structure Explained

A layered architecture is a logical model that helps different parts of a communication system work together. PPP’s layered model maps reasonably well onto the OSI model: both share the same physical layer, though PPP distributes the work of its Link Control Protocol (LCP) and Network Control Protocol (NCP) differently than OSI’s strict layer boundaries....

Muhammad Khattak 8 min read
Two-Panel Diagram Contrasting A Dhcp Broadcast That Dies At A Router With No Relay Configured Against One Successfully Relayed As A Unicast To The Dhcp Server
CCNA

What Is DHCPv4 Relay?

Routers don’t forward broadcast traffic between subnets — that’s the whole point of a router, keeping broadcast domains contained. Most of the time that’s exactly what you want. But DHCP’s initial DISCOVER message is a broadcast, sent by a client that has no IP address yet and therefore no way to address anything directly. If...

Muhammad Khattak 8 min read
Two-Panel Diagram Showing Tcp Three-Way Handshake With Syn, Syn-Ack, Ack Flags Including Isn Synchronization On The Left, And Four-Way Termination With Fin, Ack, Fin, Ack Flags Plus A Time_Wait Clock Icon On The Right, With An Rst Abrupt Termination Callout Below
CCNA

TCP Connection Establishment and Termination

All application processes on a server use unique port numbers. A network administrator can use default ports (e.g., 80 for HTTP, 21 for FTP) or configure custom ports manually, ensuring no conflicts. An active server application listening on an open port means the transport layer accepts and processes segments addressed to that port number. Every...

Muhammad Khattak 14 min read