Modern networks rely on a complex set of protocols, rules, and infrastructure to operate, but understanding the basics will help you design networks that function securely and efficiently.    


In computer networking, a packet is a unit of data that is transmitted over a network. The size of a packet varies depending on the type of network, but it is typically between 1 and 1,000 bytes.


This is the property that ensures that all devices on the networks can communicate with each other. In order for this to happen, there must be a physical connection between all devices on the networks.

Twisted pair cables

Twisted pair cables are one of the most common types of cable used in computer networking. They are made up of two insulated copper wires that are twisted together. The twisting helps to cancel out any interference that may be picked up by the wires.


Is the ability of a network to protect its users’ data from unauthorized access. A secure network includes features such as encryption and authentication that prevent unauthorized users from accessing data.


Is the ability of a system to grow and support additional users and devices without compromising performance or security. A scalable network can be easily expanded to support more users and devices without sacrificing speed or security.


Ethernet is a popular standard for Local Area Networks (LANs). It is standardized by IEEE 802.3 and uses a bus or star topology. Ethernet supports data rates of 10 Mbps, 100 Mbps, and 1 Gbps.

Wiring closet

The fourth fundamental property of computer network is the wiring closet. The wiring closet is the room where all of the computer network equipment is stored. This includes the routers, switches, and other equipment that is necessary for the fretwork to function. The wiring closet is also where the cables that connect the different parts of the web are located.


Computer networks are a vital part of our lives, and we rely on them for everything from communication to entertainment. Understanding the four fundamental properties of computer networks is essential for anyone who wants to work in this network field.

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