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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. Illustrate what is a Centrifugal Force? Answer:- Centrifugal force is the force that is equivalent in magnitude but opposite in direction to the centripetal force which
I/O devices need to be matched up to computer application. - Computer-aided design (graph plotters, large screens, etc.) - Virtual reality (data gloves, data goggles, etc.)
Explain Stored Program Control. Stored Program Control: Modern digital computers utilize the stored programmed idea. Now, a program or a set of instructions to the computer i
compare 2g , 3g , and 4g also with advantage of 3g and 4g.
Q. Why we need parallel programming languages? The parallel programming languages are created for parallel computer environments. These are developed either by creating new la
Traffic Handling Capacity is given by (A) Switching capacity × Theoretical maximum load (B) Switching capacity / Theoretical maximum load (C) Theoretical maximu
Define locality of reference? What are its types? During the course of implementation of a program memory references by the processor for both the instruction and the data ten
Why a task can n ot return a value? If tasks can return values then Let's take a look at the below example. A=f1(B)+f2(C); and f1 and f2 had delays of say 5 and 10? Whe
E xplain the working of thousand line exchanges by u sing a combination of uniselectors and two motion selectors. The schematic diagram for such an exchange is demonstrated i
Describe the micro programmed control unit in detail. A micro programmed control unit is built around a storage unit is known as a control store where all the control signals a
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