Fundamentals of computer networking is one of the most important courses an IT student can take. In this course, you will learn the basics of how computer networks work and how to design and implement networks.
A computer network is a collection of two or more computers that are connected together to share resources. In order to share resources, the computers must be able to communicate with each other. This is done by using a network protocol.
A network protocol is a set of rules that govern how the computers on the network communicate with each other. There are many different network protocols, but the most common ones are TCP/IP and Ethernet.
TCP/IP is a suite of protocols that is used to connect computers to the internet. Ethernet is a network protocol that is used to connect computers to each other in a local area network (LAN).
In order to design and implement a computer network, you must understand the basics of networking concepts such as:
– Network topologies
– Network media
– Network protocols
– Network devices
Network topologies are the physical or logical layout of a computer network. There are three common network topologies:
– Bus
– Star
– Ring
Network media is the physical wiring that is used to connect the devices on a computer network. There are two common types of network media:
– Wired
– Wireless
Network protocols are the rules that govern how the computers on the network communicate with each other. There are many different network protocols, but the most common ones are TCP/IP and Ethernet.
Network devices are the devices that are used to connect the computers on a computer network. The most common network devices are:
– Network switches
– Network routers
– Network adapters
– Network hubs
If you want to learn more about computer networking, there are many resources available online. The best way to learn is to find a networking course and start learning!
Contents
What is fundamentals of computer networks?
A computer network is a collection of two or more connected computers. Networked computers can share resources, such as files, printers, and Internet connections. Networks can also allow users to communicate with each other.
Networks are built with a variety of hardware and software technologies. The most common type of network is the local area network (LAN). A LAN connects computers in a single office or building. Wide area networks (WANs) connect LANs over large distances, such as between different cities or countries.
The most important factor in a network is the network topology. The topology is the physical layout of the network. There are many different topologies, but the most common are the bus, star, and mesh topologies.
The bus topology is a network in which all of the computers are connected to a single cable. The star topology is a network in which all of the computers are connected to a central hub. The mesh topology is a network in which the computers are connected to each other in a mesh pattern.
Networks are also classified by their level of security. The most common security levels are open, shared, and private. An open network is a network in which all users are allowed to access all resources. A shared network is a network in which users are granted access to specific resources. A private network is a network in which users are granted access to all resources.
Networks are also classified by their speed. The most common speeds are 10 Mbps, 100 Mbps, 1 Gbps, and 10 Gbps. Networks can also be classified by their distance. The most common distances are local, metro, and wide area.
A computer network is a collection of two or more connected computers. Networked computers can share resources, such as files, printers, and Internet connections. Networks can also allow users to communicate with each other.
Networks are built with a variety of hardware and software technologies. The most common type of network is the local area network (LAN). A LAN connects computers in a single office or building. Wide area networks (WANs) connect LANs over large distances, such as between different cities or countries.
The most important factor in a network is the network topology. The topology is the physical layout of the network. There are many different topologies, but the most common are the bus, star, and mesh topologies.
The bus topology is a network in which all of the computers are connected to a single cable. The star topology is a network in which all of the computers are connected to a central hub. The mesh topology is a network in which the computers are connected to each other in a mesh pattern.
Networks are also classified by their level of security. The most common security levels are open, shared, and private. An open network is a network in which all users are allowed to access all resources. A shared network is a network in which users are granted access to specific resources. A private network is a network in which users are granted access to all resources.
Networks are also classified by their speed. The most common speeds are 10 Mbps, 100 Mbps, 1 Gbps, and 10 Gbps. Networks can also be classified by their distance. The most common distances are local, metro, and wide area.
What are the 5 basic components of computer network?
Computer networks come in all shapes and sizes. You can find small networks in homes and large networks in businesses. However, no matter the size or shape of the network, there are five basic components that are always present.
The five components are:
1. Network Interface Cards
2. Network Cables
3. Network Switches
4. Routers
5. Servers
Let’s take a closer look at each of these components.
1. Network Interface Cards
Network Interface Cards, or NICs, are the devices that allow your computer to connect to a network. They come in a variety of shapes and sizes, but all NICs have one thing in common – they allow your computer to communicate with other devices on the network.
2. Network Cables
Network cables are the cables that connect the devices on a network. There are a variety of different types of network cables, but the most common are Ethernet cables. Ethernet cables are the cables that are typically used to connect computers to a network switch.
3. Network Switches
Network switches are the devices that allow multiple devices to connect to a network. A network switch is a box that has several Ethernet ports on it. When you connect a device to a network switch, the switch forwards the traffic from that device to all of the other devices on the network.
4. Routers
Routers are the devices that allow different networks to connect to each other. A router is a box that has several Ethernet ports on it, and it also has a wireless antenna. When two networks are connected to a router, the router forwards the traffic between the two networks.
5. Servers
Servers are the devices that store and run the applications and data that are used on a network. Servers can be physical devices, or they can be virtual devices that run on a computer.
What are the 4 types of networking?
Networking is the process of connecting two or more computers together in order to share data. There are four types of networking:
1. LAN (Local Area Network): A LAN is a network that spans a relatively small area, such as a home, office, or small group of buildings. LANs are usually connected to the internet, allowing computers on the LAN to access the internet.
2. WAN (Wide Area Network): A WAN is a network that spans a large area, such as a city, state, or country. WANs are usually connected to the internet, allowing computers on the WAN to access the internet.
3. MAN (Metropolitan Area Network): A MAN is a network that spans a large area, such as a city. MANs are usually connected to the internet, allowing computers on the MAN to access the internet.
4. Cloud Networking: Cloud networking is a type of networking that allows users to access their data and applications from any device, anywhere in the world, as long as they have an internet connection. Cloud networking is made possible by cloud computing, which is the ability to access data and applications over the internet.
What is IP address in networking?
An IP address is a unique identifier for a device on a network. It is a 32-bit number that is assigned to a computer, router, or other device. The IP address is used to route traffic to the correct device on the network.
There are two types of IP addresses: public and private. A public IP address is assigned by an Internet service provider (ISP) and is used to connect to the Internet. A private IP address is used on a local network and is not accessible from the Internet.
The IPv4 address system is being replaced by the IPv6 address system. IPv6 addresses are 128-bit numbers and can provide a much larger address space. IPv6 addresses are not yet widely used, but they will eventually replace IPv4 addresses.
What is a TCP IP model?
TCP/IP Model
The TCP/IP model is a network model that is used to help explain how data travels between computers on a network. It is made up of four layers: the Application layer, the Transport layer, the Internet layer, and the Network Access layer.
The Application layer is the top layer of the TCP/IP model and is responsible for providing applications with the ability to communicate with each other. The Transport layer is responsible for ensuring that data is delivered reliably and in the correct order. The Internet layer is responsible for routing data packets between networks. The Network Access layer is responsible for providing the connection between a computer and the network.
The TCP/IP model is the most common network model used today. It is used in a variety of networking technologies, including the Internet and Ethernet.
What are the 4 main components of a network?
A network is a system of interconnected computers and devices. Networks can be small, such as in a home or office, or large, such as the Internet. The four main components of a network are nodes, links, media, and protocols.
Nodes are the devices that make up the network. They can be computers, printers, routers, or any other type of device. Links are the physical or logical connections between nodes. Media is the physical or logical transmission medium that links nodes together. Protocols are the rules that govern how nodes interact with each other.
Networks use a variety of media to transmit data. The most common media are twisted-pair copper wire, coaxial cable, and optical fiber. Copper wire is the oldest and most common type of media. It is cheap and easy to install, but it has a limited range. Coaxial cable is a type of copper wire that has a thicker insulation than regular copper wire. This makes it less susceptible to interference and gives it a longer range than regular copper wire. Optical fiber is a newer type of media that uses light to transmit data. It is more expensive than copper wire, but it has a longer range and is less susceptible to interference.
Networks use a variety of protocols to communicate. The most common protocols are Ethernet, Wi-Fi, and Bluetooth. Ethernet is a common wired protocol that is used in most networks. Wi-Fi is a common wireless protocol that is used in most networks. Bluetooth is a wireless protocol that is used for short-range communications.
What does LAN stand for?
LAN stands for Local Area Network. It is a computer network that connects devices within a limited area, such as a home, office, or a small group of buildings. LANs are usually used to connect computers, printers, and other devices.
