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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.
What is Redundant Array of Independent Disks? Researchers are constantly trying to improve secondary storage media by raising their, performance, capacity as well as reliabilit
ARQ is transmitted in the event of: (A) Loss of signal (B) Error in received data (C) Improve reliability (D) During time out
Why a linked list is called a dynamic data structure? What are the advantages of using linked list over arrays? A linked list is known as a dynamic data structure because it
Computer to computer communication is: (A) Simplex (B) Duplex (C) Half Duplex (D) Both Duplex and Half D
Q. What is a breeder reactor? 92 U 238 and 90 Th 232 aren't fissile materials but are abundant in nature. In the reactor these are able to be converted into a fissile mater
Backward Chaining: In generally given that we are only interested in constructing the path whether we can set our initial state to be the theorem statement and search backward
A set of techniques that allow executing a program which is not entirely in memory is called ? Ans. virtual memory which allows executing a program that is not entirely in me
Define the Architectural framework for electronic commerce. An application independent framework to categorize service interaction relies onto four fundamental dimensions a.
Distributed System 1. What is a message passing system? Discuss the desirable features of a message passing system. 2. Discuss the implementation of RPC Mechanism in detail.
state function and path function
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