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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.
The preorder traversal sequence of a binary search tree is 30, 20, 10, 15, 25, 23, 39, 35, 42. Which one of the following is the postorder traversal sequence of the same tree?
Name the 7400 series TTL chip which is a priority encoder. Write its truth table. Ans. Available IC in 74 series is 74147 that is a priority encoder. Such I
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A scope resolution operator (::), can be used to describe the member functions of a class outside the class.
Can both client and server use the same protocol port on the same computer at the same time? Explain. Client and server can't use similar port number on similar computer at ide
A 2-digit BCD D/A converter is a weighted resistor type with E R = 1 Volt, with R = 1M? , R f = 10K? . Find resolution in Percent and Volts. Ans. Resolution = 1/2 2 = 0.25 vo
what is the usuage of Real time Os
Search in Problem Solving: If Artificial Intelligence can inform that the other science about anything, it is about problem solving and, in particular, how to research after s
A dialog box such as a File menu that have one command until it is clicked when a number of dissimilar commands "drop-down."
How will you form an 8 bit adder using 2 four bit adder IC's 7483? Ans: 4 bit adder IC is IC 7483. This has two four bit data inputs and output carry, 4 bit data output carr
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