End of Chapter Questions

Question 1

Explain the Object Web model based on a java client and CORBA ORB’s.

Question 2

Explain the end to end working of the client sever model.

Answer 2

Clients send request in one of 5 methods POST, PATCH, PUT, GET and delete request, the web sever then knows how to process the request from the method used the request is passed to a CGI script which passes it the database and the result is sent back to the client

Question 3

Explain CORBA using a block diagram l.

Answer 3

CORBA has 5 main components the client that sends request, the ORB that ensures that request reach the server and responses reach the client, the Interface definition language, that defines how the client and server communicate with each other and the Stubs and Skeletons. The Stub ensure client request are formated appropriately and the skeleton ensures server responses are processed appropriately. This entire process is bi directional

Question 4

What is the role of traditional databases vs web based databases in client server environments?

Answer 4

Traditional databases are mostly used in small closed and private client sever environments.
While web based databases are mostly used in large scalable public/open client server environments

Question 5

What is the role of the web browser for providing web services in client server environments.

Answer 5

• Sending requests
• Displaying/providing responses to the users
• Acting a middle man between user and web services interaction
• Providing a secure connection to the web server