Abstract:
Mobile agents are autonomous programs that can
migrate i n a heterogeneous network to perform tasks
on behalf of their owners. Mobile agents also raise
several security issues related to the data carried by
an agent itself. In mobile agent based application,
both code and data can be transferred together from
on e machine to another in the form of class . T his
paper is intended to retrieve data from many
distributed computers in which data is stored in
several sites that are formed as distributed database .
This system will implement as these steps: first, it will
i mplement distributed query frame that will process
the user queries and retrieve the necessary
information, t hen, it will use the query rule to
enhance this system . This paper implements mobile
agent that includes master agent and worker agent.
In master a gent, the user can retrieve national
registry information in which data is stored in master
agent’s database. Worker agents can only distribute
their database to master agent. After distributing,
master agent can retrieve national registry
information in w hich data is not only stored in master
agent’s database but also worker agent’s database.
