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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.
FAILURES Since reliability engineering is focused on the survivability or absence of failures, it is more concerned about failures, understanding their causes and defining re
Raises when accessing an unassigned memory location accessing a null pointer
Q. Process of An e-mail transfer across the Internet? When you open your mail client to read your e-mail, this is what normally happens: 1. Mail client (Netscape Mail, Micro
Paging Unit Paging mechanism functions with 4K - byte memory pages or with a new extension available to Pentium with 4M byte-memory pages. In the Pentium, with the new 4M-byt
what are the questionnaries and observation of work site for banking system?
Example: CMP AX,BX ; compare instruction: sets flags JE THERE ; if equal then skip the ADD instruction ADD AX, 02 ; add 02
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Perceptrons in artificial neural network- Artificial intelligence: The weights in any ANN are always only real numbers and the learning problem boils down to selecting the best
Common channel signalling ? Common channel signalling requires no additional transmission help or facilities.
How to increase simulation speed First figure out what is eating away your CPU cycles. Is it 1. Compile time - Use a Make file to compile only files with changes and not
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