What are the types of cable

The types of cable

 A. Twisted Pair.

a cable consisting of two wires twisted around each other, used especially for telephone or computer applications.

a. STP ( Shielded Twisted Pair ) -  Shielded twisted pair (STP) cable was originally designed by IBM for token ring networks that include two individual wires covered with a foil shielding, which prevents electromagnetic interference, thereby transporting data faster. 

b. UTP ( Unshielded Twisted Pair ) Unshielded twisted pair (UTP) cables are widely used in the computer and telecommunications industry as Ethernet cables and telephone wires. In an UTP cable, conductors which form a single circuit are twisted around each other in order to cancel out electromagnetic interference (EMI) from external sources.

B. Coaxial

 Coaxial cable is a type of copper cable specially built with a metal shield and other components engineered to block signal interference. It is primarily used by cable TV companies to connect their satellite antenna facilities to customer homes and businesses. It is also sometimes used by telephone companies to connect central offices to telephone poles near customers. Some homes and offices use coaxial cable, too, but its widespread use as an Ethernet connectivity medium in enterprises and data centers has been supplanted by the deployment of twisted pair cabling.

C. Fiber Optic

 Fiber optic cable is a high-speed data transmission medium. It contains tiny glass or plastic filaments that carry light beams. Digital data is transmitted through the cable via rapid pulses of light.

 Straight Through Cable

A straight through cable is a type of twisted pair cable that is used in local area networks to connect a computer to a network hub such as a router. This type of cable is also sometimes called a patch cable and is an alternative to wireless connections where one or more computers access a router through a wireless signal. On a straight through cable, the wired pins match. Straight through cable use one wiring standard: both ends use T568A wiring standard or both ends use T568B wiring standard. The following figure shows a straight through cable of which both ends are wired as the T568B standard.

Crossover Cable

An  Ethernet crossover cable is a type of Ethernet cable used to connect computing devices together directly. Unlike straight through cable, crossover cables use two different wiring standards: one end uses the T568A wiring standard, and the other end uses the T568B wiring standard. The internal wiring of Ethernet crossover cables reverses the transmit and receive signals. It is most often used to connect two devices of the same type: e.g. two computers (via network interface controller) or two switches to each other.

 

Source: /https://www.systemswire.com/electrical-cable-types/https://www.systemswire.com/electrical-cable-types/

lhttps://www.webopedia.com/TERM/S/shielded_twisted_pair.html

https://www.techopedia.com/definition/13454/unshielded-twisted-pair-cable-utp

What are the Types of Network Topology?

The Different Types Of Network Topology

Point to Point Topology- This network is the simplest layout for any network, and it is pretty easy to visualize.

Linear Bus Topology- A type of network topology in which each device is connected one after the other in a sequential chain.

Star Topology- Is one of the most common network setups. In this configuration, every node connects to central network devices, like a hub, switch, or computer.

Ring Topology- A network configuration  in which device connection create a circular data path. Each networked device is connected two others, like points on a circle.

Mesh Topology-  A network set up where each computer and Network device is interconnected with one another, allowing for most transmissions to be distributed, even if one of the connectors go town.

Hybrid Topology- A type of network topology that uses two or more different network topologies. This topologies include a mix of bus topology, mesh topology, ring topology, star topologyand tree topology.

Source: /https://www.cybrary.it/study-guides/cissp/types-of-network-topologies/

What are the types of Computer Network?

Different types of Computer Network

PAN(Personal Area Networks)Is a computer network used to interconnect devices centered on an individual workplace.

LAN ( Local Area Network) is a type of computers and associated devices that share o common communications linear wireless link to server.

MAN ( Metropolitan Area Network) Is a large network than LAN. It involves connecting several networks together that reside within a city, town or metropolis.

WAN (Wide Area Network) Is a simply a network consisting of Interconnected LAN's. It is usually dispersed over a very wide area, and it is not uncommon to link office networks with one another in several International branch of pieces.

Source: https://www.belden.com/blog/digital.../11-types-of-networks-explained-vpn-lan-more

How to be a responsible netizen?

Nowadays too young even too old know how to use the Internet,  because it's very useful to everyone. Usually, everyone use it to many purpose. Just like enjoying playing games, online businesses and so on. To be a responsible netizen respect others people time and band with. Don't use language to offend someone, don't trust anyone, don't make a trouble. Beware of what you post online, Facebook, twitter or instagram are just some of social networking sites people can join and use, Before posting online ask yourself if what is the tone your post like.

Avoid sharing fake news. 
It is now easier for fake news to spread swiftly, especially in today’s generation wherein social networking sites becomes a trend and you can immediately share posts in just one click. Fake news can cause people to make bad decisions or can make them panic. So before sharing it, make sure you read it first and you do fact check from reliable sources.