Managing Web Traffic
What is the difference between a byte and a bit?
A byte is made up of 8 bits.
Step 1 when wanting to the connect to the internet (after opening your computer)
Your device needs to be connected to the internet through 1 of the 3 ways (wifi, fiber optic or ethernet)
The fastest way to connect to the internet
Fiber Optic cables
What is WWW?
This piece of hardware acts as a "traffic manager" to get information where it needs to go
What is a router
How are bits and packets different?
A bit is the smallest unit of data while a packet is made up of many bits.
Step 2?
Open a web browser (Safari, Chrome etc)
Which connection uses radio waves?
Wi-Fi
What are two devices that could be on a home network?
laptop, phone, tablet, console, TV
What is a packet?
A small unit of data that is part of a larger file or request that is sent over the internet - helps to increase efficiency.
What is the difference between WAN and LAN?
Wide Area Network is used for large areas with thousands of devices and must be connect through wires vs. Local Area which is a very small area like a home or a school and it can use wifi to connect to the devices.
Step 3?
What does fiber optic cables use to send messages?
light
This hardware has a large amount of storage, fast internet connection and runs specific software.
A server
This is currently replacing IPv4 in the near future due to a lack of IP addresses world wide.
What is IPv6?
What is the difference between HTTP and HTTPS?
HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure. HTTPS encrypts data for secure communication over a computer network.
Step 4?
Now you can upload files or make requests on this website. Your computer breaks data down into packets and sends it to the destination.
What are the benefits and drawbacks of ethernet?
Benefits: cheap, no signal loss
Drawbacks: short range
The computer where a website is stored
How is the internet fault tolerant?
It means that the network can keep sending packets even if something goes horribly wrong because there are so many pathways that packets can take.
TCP (Transmission Control Protocol) provides reliable, ordered, and error-checked delivery of data, while UDP (User Datagram Protocol) provides faster but unreliable data transmission.
Step 5?
TCP checks to make sure all packets have arrived and reassembles them and then a response is made back to your computer with the cycle repeating again.
Benefits and drawbacks of wifi?
Benefits: cheap, mobile
Drawbacks: signal loss, short range
When was the modern internet created?
1990s