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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.
Q. Copy file from a floppy disk to the hard disk? While using a PC, often you need to copy file from a floppy disk to the hard disk or vice-versa. For instance, you buy some s
What are Assemblies? Assemblies are same to dll files. Both have the reusable pieces of code in the shape of classes/ functions. Dll needs to be registered but assemblies have
Explain in details the various standard I/O interfaces. The various standard I/O interfaces are: 1. The Peripheral component interconnect(PCI) bus is a standard that suppor
Yes we can modify the color of sheet tabs. By right clicking on sheet tabs and you will get option change color but you didn't find any option to modify the font of sheet tabs.
What is the difference between a subscript and an index in a table definition? Ans) A subscript is a working storage data definition item, typically a PIC (999) where a value mu
#questi on.. How it works Explain explain
What are the two approaches used for generating the control signals in proper sequence? Hardwired control Micro programmed control
Yes, single thread module
Set Value is ready to ActiveX Object from the form. Let Value is retried to ActiveX Object from the form. Get- Assigns the value of an expression to a variable or property.
Explain DOS function call with one illustration DOS function call In order to use DOS function calls, always place function number into register AH and load all other re
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