BASIC’S OF NETWORKING: (NEWBIE EDITION 3)

aj-loves-tech
5 min readMar 23, 2024

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Hello There !!! Newbie here /

I just started about to learn networking , that was very facinated and interesting when i try to know how things are work , I just put my endeavours all along this medium blog series ,If you like my work gives 👏 to my blog , OK let’s go .

AI generated networking image

Well, when i think about the term networking ,these things came to my minds were lot of servers ;full of arranged ethernet cables are cabling around the switch , that one network engineer guy was standing in frond of the server machines with holding one black color laptop 😅. That was my mind works . But actually Connecting Computers through internet ,to Access all over the world that was not only a real networking .

THE REAL NETWORKING IS CONNECTING DIGITAL DEVICES ONE TO OTHER DEVICES TO COMMUNICATE ALL OVER THE WORLD :)

Nowadays !we are used one thing mostly in day to day basis .Maybe ,you also read this blog on that device …yes smart phone 😃 Today topic is to how two smart phones are communicate between them , how things on work on that ,let’s jump 😻.

Mobile phones use radio waves to transmit voice signals to antennas mounted on towers located in specific geographic areas.

When a telephone call is made, the voice signal is relayed from one tower to another tower until it is delivered to its destinationThis type of network is used when you make a phone call to another mobile phone or to a wired telephone.It is also used to send text messages directly from the phone.

Two of the most popular operating systems for mobile devices are Android and Apple iOS. Mobile devices are preprogrammed to use a Wi-Fi network for the internet if one is available, and the device can connect to the access point and receive an IP address. If no Wi-Fi network is available, the device uses the cellular data capability if it is configured.

The most common type of cellular telephone network is called a GSM network. [GSM — Global Standards of Mobile Communication].

The abbreviations 3G, 4G, 4G-LTE, and 5G are used to describe enhanced cell phone networks that are optimized for the fast transmission of data.
Currently, 4G still dominates as the current mobile network used by most phones.

In addition to the GSM and 4G/5G transmitters and receivers, smartphones make connections in a variety of ways.

Wi-Fi transmitters and receivers located within the smartphone enable the phone to connect to local networks and the internet. Wi-Fi networks are usually privately owned by your smart phones ,but after sometimes your friend wants the wifi to access the internet,to turn -on the hospot to provide guest devices or you are one who want’s the wifi , when you are in different area the public access hospot is hee to help :)

A hotspot is an area where Wi-Fi signals are available.This accessibility defaultly exists in your smart phone , when manufacturer already build it to you.

Bluetooth is wireless technology that allows devices to communicate over short distances. 🌟 by the way in my childhood days i was think like bluetooth was an magical things that were share one picture to another phone with the help of air 😜 ,but bluetooth was an amazing technology in the digital era.

if you know about more things about bluetooth here’s the link :https://www.youtube.com/watch?v=1I1vxu5qIUM

Bluetooth technology provides a simple way for mobile devices to connect to each other and to wireless accessories. Bluetooth is wireless, automatic, and uses very little power, which helps conserve battery life. Some examples of devices that use Bluetooth include hands-free headsets, keyboards, a mouse, stereo controls, car speakerphones, and mobile speakers.

Bluetooth pairing occurs when two Bluetooth devices establish a connection to share resources. In order for the devices to pair, the Bluetooth radios are turned on, and one device begins searching for other devices. Other devices must be set to discoverable mode, also called visible, so that they can be detected.

When a Bluetooth device is in discoverable mode, it transmits the following information when another Bluetooth device requests it:

  • Name
  • Bluetooth class
  • Services that the device can use, Technical information, such as the features or the Bluetooth specification that it supports.
  • During the pairing process, a PIN may be requested to authenticate the pairing process.meters.

Multiple devices can be connected at the same time with Bluetooth.

NFC [NFC — Near Field Communication] is a wireless communication technology that enables data to be exchanged by devices that are in very close proximity to each other, usually less than a few centimeters. Almost all mobile devices are capable of connecting to Wi-Fi networks.

These precautions should be taken to protect Wi-Fi communications on mobile devices , yes nowadays lot’s of peoples were using smart phones , laptops , desktop, tablet like that .. most of the people transaction were fully mode of online transaction , in the way cyber world was civilized at this side, on the other side cyber criminal’s also developing their own threats and vulnerabilities . Accessing smart devices and use the smart phones were not a big thing, the big thing was access and control your data in your sites and media’s , your data will justify who you are, every data matters …. 💻 😷

I give some general security advice to ensure you devices safe and secure

Never send login or password information using unencrypted text (plaintext).

Use a VPN connection when possible if you are sending sensitive data.
Enable security on home networks.

Use WPA2 or higher encryption for security.

ALRIGHT, i hope you are something learn about new to this blog , if yes! gives a 👏

if no! comment down below , i will try to improve my writing 😃, and if you want to continue this blog playlist , follow me on medium and linkedin as well :)

Follow me on linkedin : ajrun afsana

ajrun afsana

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aj-loves-tech

Introducing myself tech enthusiastic, great spectator of youtube,love to read tech related articles ,self improvement,tech and science and more ...