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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.
Can someone provide me a scehmatic diagram of RS232C with explanation?
Q. Registers used in IA-64 architecture ? Registers: The IA-64 architecture comprises a very generous set of registers. It has an 82-bit floating point as well as 64-bit inte
What is an interrupt? An interrupt is an event that causes the implementation of one program to be suspended and another program to be implemented.
Q. Explain Usenet and Newsgroups? In Internet there exists another way to meet people and share information. One such way is through Usenet newsgroups. These are special groups
Explain the differences between Logical and physical address space Logical Vs physical address space (1) An address produced by the CPU is commonly referred to like a logica
Explain micro programmed control. Ans: A micro programmed control unit is made around storage till is called a control store where all the control signals are stored in a prog
Explain the advantages of computer Computer is one of the main components of an Information Technology network and getting increasing popularity. Nowadays, computer technology
Multiple Instruction and Multiple Data stream (MIMD) In this association, multiple control units and multiple processing elements are prepared as in MISD. But the discrepancy i
Explain adaptive routing. Adaptive routing defines the ability of a system, by which routes are characterised through their destination, to change the path that the route takes
What is Race condition? Race condition: The circumstances where several processes access - and manipulate shared data-concurrently. The last value of the shared data depends
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