Internet Protocol - a protocol that defines the layout of an internet address, IP Address - 93 . 184 . 216 . 34, IPv4 - This 32 bit version of the protocol has been around since the 80's, IPv6 - a new 128 bit version of the Internet Protocol, Internet Engineering Task Force - an open community of engineers, designers, vendors_and researchers, concerned with the evolution and smooth functioning of the internet, Problem - ip addresses are great for giving each device a unique address on the internet, DNS - translates names to IP addresses, routing - - the process of sending data between two computers on the internet, cost - How close is the ip address, Is this router trustworthy,Is the connection fast, redundancy - multiple paths exists between two points, What is the function of the Domain Name System (DNS)? - To translate domain names into IP addresses, DNS Step 1 - check cache, DNS step 2 - ask a root server, DNS Step 3 - ask a TLD server, DNS Step 4 - ask a hosting server, DNS Step 5 - save in the cache, DNS Step 6 - send the request,

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