QB - Jayaram College of Engineering and Technology
QB - Jayaram College of Engineering and Technology
QB - Jayaram College of Engineering and Technology
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5. What is meant by 2 tier architecture<br />
In 2 tier client server systems, the application logic is either buried inside<br />
the user interface on the client or within the database on the server.<br />
Example : file servers <strong>and</strong> database servers with stored procedures.<br />
6. What is meant by Middleware<br />
Middleware is distributed s<strong>of</strong>tware needed to support interaction between<br />
clients <strong>and</strong> server. In short, it is the s<strong>of</strong>tware that is in the middle <strong>of</strong> the<br />
client/server systems <strong>and</strong> It acts as a bridge between the clients <strong>and</strong><br />
server. It starts with the API set on the client side that is used to invoke a<br />
service <strong>and</strong> it covers the transmission <strong>of</strong> the request over the network<br />
<strong>and</strong> the resulting response. It neither includes the s<strong>of</strong>tware that provides<br />
the actual service that is in the servers domain not the user interface or<br />
the application login that’s in clients domain.<br />
7. What are the two board classes <strong>of</strong> middleware<br />
General middleware<br />
Service specific middleware<br />
8. What is group ware Server<br />
Group server addresses the management <strong>of</strong> semi-structured information<br />
such as text, image, tesmail, bulletin boards <strong>and</strong> the flow <strong>of</strong> work. These<br />
client/server systems have people in direct contact with other people.<br />
9. What are the characteristics <strong>of</strong> client /Server<br />
Service<br />
Shared resources<br />
Asymmentrical protocols<br />
Transparency <strong>of</strong> location<br />
Mix <strong>and</strong> match<br />
Message based exchanges<br />
Encapsulation <strong>of</strong> services<br />
Scalability<br />
Integrity<br />
Department <strong>of</strong> IT, JCET, Trichy. Page 2
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