scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 777
Network software generally needs a 32-bit Internet address in order to open a connection or send a datagram However users prefer to deal with computer names rather than numbers Thus there is a database that allows the software to look up a name and find thecorresponding number When the Internet was small this was easy Each system would have a filethat listed all of the other systems giving both their name and number There are now too manycomputers for this approach to be practical Thus these files have been replaced by a set of nameservers that keep track of host names and the corresponding Internet addresses In fact theseservers are somewhat more general than that This is just one kind of information stored in thedomain system Note that a set of interlocking servers are used rather than a single central oneThere are now so many different institutions connected to the Internet that it would be impractical forthem to notify a central authority whenever they installed or moved a computer Thus namingauthority is delegated to individual institutions The name servers form a tree corresponding toinstitutional structure The names themselves follow a similar structure A typical example is the nameBORAXLCSMITEDU This is a computer at the Laboratory for Computer Science LCS atMIT In order to find its Internet address you might potentially have to consult 4 different serversFirst you would ask a central server called the root where the EDU server is EDU is a server thatkeeps track of educational institutions The root server would give you the names and Internetaddresses of several servers for EDU There are several servers at each level to allow for thepossibly that one might be down You would then ask EDU where the server for MIT is Again itwould give you names and Internet addresses of several servers for MIT Generally not all of thoseservers would be at MIT to allow for the possibility of a general power failure at MIT
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA