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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.
A device, usually linked to a serial port of a computer, that transfer data over regular phone lines. Modem stands modulator demodulator; it changes a digital stream of data into s
Question : a) E-mail is a common feature nowadays in IT. What does it stands for and what is it used for? b) Briefly describe four advantages of using the electronic mail s
Q. Show the Features added in message passing interface-2 Input/output Single-sided operations for remote memory access Binding for C++ Dynamic process managem
Q. How to Changing the Directory in DOS? You can change the directory. After changing the directory, the new directory becomes the default directory. For example, you change th
Q. What do you mean by Prototype? A prototyping approach lay emphasis on the construction model of a system. Designing and building a scaled-down though functional version of a
A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t
want to know about latest work and research papers on internet data synchronization
Why the temporary registers W and Z are named so I mean we start from A,B,C,D,E then H and L coz H stands for higher bit nd L for lower bit of the address pointed by memory pointer
Q. Illustrate processor arrangements? HPF$ PROCESSORS P2 (4, 3) !HPF$ TEMPLATE T2 (17, 20) !HPF$ DISTRIBUTE T2 (BLOCK, *) ONTO P1 Means that first dimension of T2 woul
What is digital decoders
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