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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.
Write a CGI program that keeps a list of computers that have contacted the server. If comp1 is contacting first time it will display the message: "This is the first contact fr
Q. Describe the instruction set architecture? The significant role of the Central Processing Unit (CPU) is to perform calculations, to coordinate all other hardware components,
The reason is, LINQ is used with C# or other programming languages, which needs all the variables to be declared first. From clause of LINQ query just describes the range or condit
composition of two shm in right angles to each other to havingg time period in the ratio 1:2
Q. What is Command Prompt Interface? Operating System gives a text based interface called command prompt. With the help of command prompt commands can be issued to perform fil
1) Short both I/Ps of NAND gate & use the gate as an inverter. 2) Connect any one of the two I/Ps to VCC & use the remaining I/P & use the gate as an inverter.
The success of a system relies on the approach of building it. If development approach is right then system will work successfully. Figure below portrays a System Development Life
What are pages? All programs and date are composed of fixed length units known as pages. Each page consists of blocks of words that occupy contiguous locations in main memory
Q. What is the working of domain expert? ANSWER: The domain expert is the person who gives the domain expertise in the form of problem-solving strategies.
The difference among the height of the left sub tree and height of the right tree, for each node, is almost one. AVL - tree
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