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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.
how CSMA protocol is improved through persistence methods & collition detection
What is FIFO? FIFO is used as buffering element or queuing element into the system that is by common sense, is needed only while you slow at reading than the write operation.
Q. Collective Communications - Broadcast? Broadcast: Broadcasting can be done in two ways one of them is one to all and another one is all to all. In the matter of one to all b
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Explain the importance of Search Engines The most effective way of finding information on the internet is to use a search engine. Though, it's just as easy to use these ineffic
what are the feasibility study of online result management system?
Differentiate between pre-emptive and non-pre-emptive scheduling. Pre-emptive scheduling : in its approach, center processing unit can be taken away from a process if there is a
What is the main problem with segmentation? Problem with segmentation (i) Is with paging, such mapping needs two memory references per logical address that slows down the
In 1960: The purpose of e-commerce was to exchange the electronic data. In 1970s: Electronic Fund Transfers or EFT was developed which considered as huge impact in the emerging
Q. How to export a dreamweaver document as xml file? Step 1: Choose File -> Open, Step 2: Select document which uses a template (and has editable regions) Step 3: Click O
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