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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.
The following switching functions are to be implemented using a Decoder f 1 = ∑ m(1, 2, 4, 8, 10, 14) f 2 = ∑ m(2, 5, 9, 11) f 3 = ∑ m(2, 4, 5, 6, 7) The minimum configur
What is big endian and little endian format? The name big endian is used when lower byte addresses are used for the more important of the word. The name little endian is used f
Q. Describe about Pascaline? Blaise Pascal made very first attempt in the direction of automatic computing. He invented a device that comprised lots of gears and chains that us
How many address bits are required to represent a 32 K memory ? Ans. 32K = 25 x 210 = 215, Hence 15 address bits are needed; Only 16 bits can address this.
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THE NEED OF PARALLEL COMPUTATION With the growth of computer science, computational pace of the processors has also increased many a times. Though, there are definite constr
Convert the following into SOP form 1. (A+B) (B'+C) (A'+ C) 2. (A'+C) (A'+B'+C') (A+B') 3. (A+C) (AB'+AC) (A'C'+B)
Draw the logic diagram of 16-bit ROM Array and explain its principle of operation. Ans: 16-bit ROM Array: A ROM that is read-only memory is an array of selectively closed
Intentional hacking helps in maintaining better security Several companies employ professionals as security specialists whose basic job is to detect and cover loopholes in t
DETERMINE ANALYTICALY IF THE SIGNAL IS PERIODIC OR NOT - X[n] = 4Cos(Pi n)
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