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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.
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Name some register output control signals. Pc out , MDR out , Z out , Offset out , R1 out , R2 out , R3 out and TEMP out .
Q. Starting parallel virtual machine? To initialize PVM on any host on that PVM has been installed we can type % pvm The PVM console known as pvm is a standalone PVM t
What are the process states in Unix? As a process implements it changes state according to its circumstances. Unix processes have the following states: Running : The process
Determine the begin - end keywords Group several statements together. Cause the statements to be evaluated sequentially (one at a time) -> Any timing within sequential group
What are the advantages of threads over processes? Some of the useful threads offer over processes includes: i) It does not take more time to create and finished a new thr
Write the values of the C output for the following gates: For a(n) ________ gate, the output is zero if any of the inputs are equal to one. For a(n) ________ gate ,the
Ring This is a easy linear array where the end nodes are connected. It is equivalent to a engage with wrap around connections. The data transmit in a ring is normally one dire
What is multiprogramming or multitasking? The operating system manages the concurrent implementation of several application programs to make the best possible uses of computer
Requirements You are required to program (in a high level language such as C, C++, Java) and implement a cache simulator which will have the following inputs and outputs:-
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