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Internet without Sec

Scales 1, 2, and 3

QuestionAnswer
IP Delivers packets (Using a routing function) to the destination using IP addresses and packet headers. Defines the addressing method used to encapsulate data.
TCP Provides reliable, ordered, and error-checked stream of packets.
DNS The service that translates URLs to IP addresses.
IETF (Internet Engineering Task Force) Develops and promotes voluntary Internet standards and protocols, in particular the standards that comprise the Internet protocol suite (TCP/IP).
Internet A group of computers and servers that are connected to each other.
IP Address A number assigned to any item that is connected to the Internet.
Packets Small chunks of information that have been carefully formed from larger chunks of information.
Protocol A set of rules governing the exchange or transmission of data between devices.
Router A type of computer that forwards data across a network
Network Redundancy Having multiple backups to ensure reliability during cases of high usage or failure. Allows for fault-tolerance.
HTTP The protocol used for transmitting web pages over the Internet
URL An easy-to-remember address for calling a web page (like www.code.org)
Hierarchical Nature There are different levels of classification and adding new subcategories can add more possibilities which allows a system to scale.
SSL/TLS Helps communicate across a network in a way designed to prevent eavesdropping and tampering. Checks a digital certificate from a CA to help ensure the legitimacy of a site.
Fault-Tolerant There is a possibility for things to go wrong. This characteristic means that we are trying to counter that.
Open Standards By giving the protocols out, companies can build their devices to access the internet. This is a form of scaling, since more devices can easily connect so long as they follow protocol.
End-to-End Architecture This is a decentralized structure where much of the processes occur at the ends, rather than between nodes. This makes it difficult to stop the internet since there is not one localized headquarters.
Distributed denial-of-service attacks (DDoS) They compromise a target by flooding it with requests from multiple systems
DNS Spoofing When someone hacks into the DNS and changes a site's IP address so people are taken to a non-intended site.
Bandwidth A measure of bit rate (The amount of data sent in a given amount of time).
Latency The amount of time spent between sending a transmission and receiving the request
Scalability The ability of a system to work just as well for 1000000 things as it did for 10 things
Created by: Dhiller
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