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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.
What is Locking? When two users at the same time attempt to access the similar data record, this is synchronized by a lock mechanism
Is it possible to pass data to and from include programs explicitly? No. If it is needed to pass data to and from modules it is needed to use subroutines or function modules.
Creating Files for Writing Only Creating Files for Writing Only : To create a text file for writing only, pass "w" into fopen as the second argument. This example follows along
Canvas is a component. ScrollPanel is a container. Canvas is a rectangular area where the application can draw or trap input events. ScrollPane executes horizontal and vertical scr
What are instruction hazards? The pipeline might also be stalled because of a delay in the availability of an instruction. For instance, this may be a result of a miss in the c
#what is decoders? explain with diagram
What is co-operative process? A process is co-operating if it can affect or be affected by the other processes implementing in the system. Any process that share data with othe
Perl is an interpreted language (not compiled, like Java) which is ideally suited for CGI programming. It has its roots in UNIX system administration and offers various features li
Explain the Structure of Virtual Enterprise. The virtual enterprise can be a suitable structure to explore the emerging opportunities for forming value in the information socie
write a java program to board coloring
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