Network Basics: Network Reliability [Animated Presentation]

A Short Series of Networking Lessons Part1

Created with Abobe Character Animator and After Effects

Verbiage:

Now network reliability pertains to physical structures that are properly implemented to reduce network interferences and as well as maintaining good performance

Cables and devices are what makes up a network's physical infrastructure. it is built to support rules, protocols and moving data across network.
Network architects which is anyone who can designs a network, must ensure that their networks meets certain expectations
these are fault tolerance, scalability, quality of service and security:

are you still with me? ok that great lets get into the nitty gritty of things

- Fault Tolerance is the ability of a network to Quickly recover a device's connection when a failure occurs as well as redirects broken links to ensure the message gets to it's destination.
* when a message is being share over a network, the Router may break up that message into single blocks called packets
* these packets may take different paths before they get to a certain destination, however when they do ,the end user will be unaffected and may not know! so that's a good ability to tolerate faults in a network in order to prevent YOU the user from having a bad experience.

- Scalability!
* A network can be added to another network if the designer follows the protocols and rules of the existing network. This allows software and hardware vendors to focus on improving products and services without having to set up new rules for operating within the network. This also does not degrade the performance of existing users.
* which is good because if you can add something to something without impacting the state of the original thing, then that a good way of expanding a network

- Quality of Service (QoS):
* now When a devices exceeds the amount of bandwidth the network can supply, is becomes congested and you will notice breaks and pauses while on the network.
* so if you have ever been watching a youtube video in 4k and you notice the constant buffering and you can barely watch the thing in peace , this is because the network has a lot of traffic and it takes a longer time for the data to get across the network
* In this case devices hold packets of data in memory until the resources are freed up and traffic starts moving faster again
* so you will notice that if you start disconnecting devices from the netwrok, or closing other programs that are using the internet connection, your network will have a better time prioritizes data flow to your current activity

- Security is a very important for a reliable network
* devices should be are physically secured while connected to network and any unauthorized access are prevented.
* software such as antivius, antimalware and antispyware help to maximize this. so that Packet data that the devices hold must be protected by network administrator, which will be you!

YOU HAVGE TO BE A CIA to keep your network strong and protected:
*Confidentiality ensures that only intended device can access and read data
*Integrity assures users that the data being transferred has not been altered before it gets to it destination
*Availability is when you can access data services in a timely fashion, so no matter what device you are using, if you want to send pictures on that shared folder you made, you shouldn't have to use a specific device and it shouldn't take extremely long for any of them to accomplish this .
Remember all the devices are on the same network, so if someone is moving to slow, you need to investigate them