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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.
Speicified the following piece of code: int i = 1; int j = 4; while (i { if (i%3 == 0) i+=3; else i+=4; if (j%2 == 0) j*=4; els
FTP does not use ? FTP doesn't use User Datagram Protocol.
Conventionally software has been written for serial computation in that programs are written for computers which have a single Central Processing Unit (CPU). Here the problems are
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Define Mercantile Process Model from the Merchant’s perspective along with a suitable diagram. This model consists of three activities into the purchase consummation phase: Aut
State the Use parameters and parameter definition modules. Parameters aren't preprocessor definitions and they have scope (for example parameters are associated with specific
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