Management Information Systems
In transportation model of O R once an initial solution has been found, the next step is to test that solution for optimality. The methods widely used for testing the solution are:

Slack variable method
Both of the above
Modified Distribution Method
Stepping Stone Method
None of these

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Management Information Systems
Which of the following is not a basic configuration used in a data communication network?

communication through a data switch
None of these
computer to front-end processor communication
computer-to-computer commu¬nication
computer/peripheral-device configuration

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