Networks + Addressing
What is a network?
a group of connected devices capable of sending and receiving messages
What is a router?
A router is a networking device that forwards data packets between computer networks.
What is a protocol?
An agreed-upon set of rules that specify the behavior of some system
When is it appropriate for information to be broadcast using UDP?
Live broadcasting, gaming, streaming, instagram live
What does “the internet” mean literally??
Between networks
Explain how the redundancies you added make your network fault tolerant
Redundancies create additional connections between devices. These additional connections make the network fault tolerant because if one connection goes down, the network will still function.
How is UDP different from TCP?
UDP = Quick TCP = Careful. Takes time to check and ensure each packet is delivered and in order
When is it appropriate for information to be broadcast using TCP?
Most internet browsing, sending emails, sending pictures, videos, etc.
What does the term IP refer to?
Internet protocol
What is better, a centralized or decentralized network? Explain.
In general, decentralized networks are superior because they are more fault tolerant.
What is a packet?
In networking, a packet is a small part of a larger message.
What is bandwidth?
The maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second.
What is an IP address?
a protocol for sending data across the Internet that assigns unique numbers (IP addresses) to each connected device
Is the internet a centralized or decentralized network? Why?
The internet is a decentralized network because it is made up of multiple routers, computing devices, and computing systems with many redundancies
What is metadata?
Data added to packets to help route them through the network and help the receiver reassemble the original message.
Why do we need IP addresses to use the internet?
IP addresses are used to identify and locate the sender and receiver of data on the internet
Steve sends Carl an email. Explain how the information is passed between computing devices using a network. Be sure to include the terms packets, metadata, and datastream.
Steve’s email is broken down into packets. These packets contain metadata, which helps the message be reconstructed in Carl’s email inbox. These packets travel between devices in a datastream.