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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.
Layout view is helpful for laying out Web pages. However you can adjust most of your design elements in Layout view, certain changes should be completed in Standard view. When you
define conceptual schema
1. How can you divide the screen into quadrants? Is the process called as ‘viewing transformations’?
a) Prototype a macro known AP which takes 4 integer parameters n (number of terms), a (first term), l (last term) and Sum (sum of n terms), provided that: Sum = (a+l)*n/2 b)
Define miss rate? It is the number of misses' states as a fraction of attempted accesses.
The free subroutine frees a block of memory lastly allocated by the malloc subroutine. Undefined results happen if the Pointer parameter is not a valid pointer. If the Pointer para
Performance and Issues in Pipelining Throughput: Throughput of a pipeline can be defined as the number of results that have been getting per unit time. It can be denoted as:
Describe the VON NEUMANN ARCHITECTURE Most of present computer designs are based on idea developed by John vonNeumann referred to as the VON NEUMANN ARCHITECTURE. V
What is dynamic random access memory Computer memory today comprises mainly of dynamic random access memory (DRAM) chips which have been built into multi-chip modules that are
List the factors that determine the storage device performance. i.Access time ii.Cycle time iii.Transfer Rate.
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