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With the cutting edge technology advance in wireless computers data broadcast has emerged as powerful tool for information dissemination to massive number of clients equipped with portable gadgets. In such computing system server continuously broadcast data over air channel without waiting for client's response and client retrieve only the data pertaining to him. To retrieve such broadcasted data mobile client submit a query to broadcast channel and get responded in sequential manner. Hence query plays central role in wireless communication. The queries evoked in wireless environment are much more complex and varied than that in traditional tethered environment.
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