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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