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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.
Q. When an object travels with constant velocity does its average velocity during any time interval differ from its instantaneous velocity at any instant? Answer:- No It i
Conversion of the decimal number 82.67 into Hexadecimal ? Ans. (1010010.10101011) 2 is the binary equivalent of decimal number 82.67. Now convert each 4-bit binary into an equ
Drawbacks to having call centres overseas - Culture and language problems - Animosity to overseas call centres (resulting in loss of customers) - need for extensive r
zmax=7.5x1-3x2 subject to constraints 3x1-x2-x3>=3 x1-x2+x3>=2 x1,x2,x3>=0
what is area subdivision and working
Rational Test Factory is a component-based testing tool that automatically produces TestFactory scripts according to the application's navigational structure. TestFactory is integr
what are the types of isoquants
Standard typewriter : You must have seen this manually operated machine. Standard typewriters of various makes such as Remington, Fact, Godrej, etc., are available in the market.
What are the entities that are swapped out of the main memory while swapping the process out of the main memory? All memory space occupied by the process, process's u-area, and
It takes away two constraints which were holding back Web developments: 1. Dependence on a one, inflexible document type (HTML) which was being much abused for tasks it was neve
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