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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.
In a virtual memory system, the addresses used by the programmer refers to (A) Memory space. (B) Physical addresses. (C) Address space. (D) M
The goal of computer architects is to design computers that are cheaper and more powerful than their predecessors. A cheaper computer has: Low hardware manufacturing cost.
Q. What do you mean by True Complement Method? Explain in detail. Q. Show IEEE format for (12.75)10. Q. What are the various ways to represent Negative Numbers in computer sy
Communications between the user and the server A significant enhancement was achieved when communications between the user and the server was sent in encrypted form and later
What are the types of Smart cards used in e-commerce? Generally there are 2 types of smart cards. Memory smart cards, which can be sighted as minuscule removable read/ write
What is clause form and resolution?
State the advantages of Bespoke Software - specifically designed for application and hence more efficient and will only contain the features wanted; as it will be devoid of
Explain the action of an interrupt processing routine? Action of an interrupt processing routine is as follows : 1. Save contents of registers of CPU. This action is not e
For a non blocking crossbar configuration, taking N as the number of subscribers, there will be number of cross points and _ number of switches for est
A stationary random displacement signal was digitised at 64 samples a second and analysed to obtain an auto-spectral density. The signal was calibrated in mm units. The frame siz
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