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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.
Define about classes of object oriented modelling A class is a collection of things, or concepts that have the same properties. Each of these concepts or things is known an obj
What is link destruction? Link destruction is inverse of link creation. When a link is destroyed makes sure the associated objects accessible by other handles or intentionally
Add -20 to +26 by using 2's complement ? Ans. Firstly convert the both numbers 20 and 26 in its 8-bit binary equivalent and determine the 2's complement of 20, after that add -
Q. Illustrate about First Generation Computers? It is certainly ironic that scientific inventions of great impact have frequently been linked with supporting a very sad as well
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Describe some general uses for Visual basic applications in general context? Ans) Visual basic can be used within almost all Microsoft products such as Map point, Visio, Auto ca
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To work with Internet as well as to utilize its facilities we use certain tools. For illustration, Telnet is a tool, which is utilized for logging on remote computers on the Intern
To how many tables can an append structure be assigned. One table can be assigned to append structure.
Create a new project, LastNameFirst 05, for this assignment. You will need to define the classes depicted in the class diagram below. All of the classes should contain complete ja
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