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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.
Conversion of fractional number 0.6875 into its equivalent binary number ? Ans. Multiply the fractional number 0.6875 with 2 until the remainder becomes 0 that is, Ther
Make at least 6 web pages with good formatting, color balance and presentation on any one of the following topics:- 1. Recycling from E-waste to resources 2. Light and So
Why is TCP called end-to-end protocol? TCP is termed as an end-to-end protocol as this provides a connection directly by an application in one computer to an application on a r
What are the 2 IEEE standards for floating point numbers? 1.single 2.double
Question: (a) Comment on the general structure of the IAS Computer, illustrate your answer using a diagram. (b) (i) Define CPU time. (a) (ii) A program runs in 10
Implement the following function using a 3 line to 8 line decoder. S (A,B,C) = ∑ m(1,2,4,7) C (A,B,C) = ∑ m ( 3,5,6,7) Ans. Given function S (A,B,C) = m (1,2,4,7)
Q. What do you mean by Software Poll? In this scheme on occurrence of an interrupt, processor jumps to an interrupt service program or routine whose job is to poll (roll call
illustration of Z80 instruction set Computer
Program testing and debugging: Program testing is the method of checking program, to verify that it satisfies its needs and to detect errors. These errors can be of any type-
Summarize the distinction between an external variable definition and an external variable declaration. When we have ''declared'' a variable, we have meant that we have told th
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