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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 meant by inter process communication? Inter process Communication: The OS give the means for cooperating processes to communicate with each other through an inter pro
Q. Illustrate Internal Organisation of RAM? The construction displayed in Figure below is made up of one JK flip-flop and 3 AND gates. The two inputs to system are one input bi
Q. MICRO-PROGRAMMED CONTROL? A substitute to a hardwired control unit is a micro-programmed control unit in which logic of the control unit is specified by a micro-program. A m
pc register contains?
Calculate the number of trunks that can be supported on a time multiplexed space switch given that, 32 channels are multiplexed in each stream, while the control memory access time
Data movement instructions shift data from one location to another. The source and destination locations are verified by the addressing modes, and can be registers or memory. Many
Explain topology method used in LAN technology in detail. LAN Topologies: Network topology is a physical schematic that shows interconnection of the various users. There are
Q. What is Serial Mouse? Mice that use standard serial port are known as 'serial'. Because Serial ports 1 and 4 (COM1, COM4 under DOS, /dev/ttyS0 and /dev/ttyS3 under Unix/GNU-
Problem: (i) What are the main threats that an organisation holding sensitive data, such as Public Data, on computer storage must guard against? (ii) To protect such data,
Q. How are control signals achieve the particular operation? The control signals are applied directly as binary inputs to the logic gates of the logic circuits. All these input
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