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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.
Explain Gray Code Ans. Gray Code 1. Extremely useful code. Also termed as reflected code. 2. All gray code is different from the preceding and succeeding codes thr
What is Operational Research?
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design modulo 12 up synchronous counter using t flip flop
Define locality of reference? What are its types? During the course of implementation of a program memory references by the processor for both the instruction and the data ten
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