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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.
design a ciruit which can work as a 4-bit binary adder as well as subtractor
Q. Write a Menu driven program to convert the given Decimal number into Binary, Octal and Hexadecimal number. (Fractional numbers are allowed)
How does a computer know whether an arriving frame contains an ARP message? Explain. The type field into the frame header gives that the frame contains an ARP message. A sender
Some of the uses of append query are as follows ? You will save time by appending data to an existing table rather than manual update. ? Appending files based on particular
INSERT OPERATION The insert operation inserts a new value into a set of bits. This is done by first masking bits and then O ring them with required value. For illustration, sup
Determine the term Queries-DBMS Queries most commonly allow information to be retrieved from tables. As the information is often spread across numerous tables, queries allow it
The idea behind inline functions is to insert the code of a known function at the point where the function is called. If done carefully, this can improve the application's performa
How will you prepare problem statement? Problem statement should state what is to be completed and not how it is to be executed. It should be a statement of requirements not a
The illustration of the mouse on-screen. Depending on your settings, the cursor can be many dissimilar things.
Determine reduced Boolean equation and the Karnaugh Map? Illustration : Determine reduced Boolean equation and the Karnaugh Map for the truth table shown below:
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