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How optimization is achieved in DNS?
Two primary optimizations used in DNS and they are: replication and caching. All root servers is replicated; various copies of the server exist around the world. While a new site joins the internet, the site configures its local DNS server along with a list of root server. The site server uses any root server is most responsive at a provided point of time. Into DNS caching each server maintains a cache of names. When this looks up a new name, the server puts a copy of the binding in its cache. Before contacting other server to request a binding, the server checks its cache; when the cache have the answer the server uses the cached answer to produce a reply.
Write a CGI program that keeps a list of computers that have contacted the server. If comp1 is contacting first time it will display the message: "This is the first contact fr
Q. What is Flash Memory? This memory is other form of semiconductor memory that was first introduced in mid-1980. These memories can be reprogrammed at high speed and therefo
what is the anatomy of digital computer
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For the purposes of this assignment, you are the accountant for an industrial property development company, Devprop Leasing Co., that typically develops warehouse and industrial co
First we must go to bios and should check boot sequence,local add statusOr we should check RAM & check h.d.d cable. check cd writer for cd or dvd
General purpose register - assembly language: Basic ISA Classes: Accumulator: 1 address add Aacc ←acc + mem [A] Stack: 0 address add to s ←to s+ next G
What are the two ways of producing a list within a transaction? By submitting a separate report. By using leave to list-processing.
Redefines clause is used to permit the similar storage allocation to be referenced by dissimilar data names.
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