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     EduGorilla 
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    Direction: The data flow diagram below gives information about reservation of railway tickets. There are certain steps which a passenger has to follow for booking his tickets. 


    In the above data flow diagram, if the data related to passenger and train details are not correct, then the reservation clerk will:

    Options :-

    1. Not book the passenger ticket
    2. Ask the passenger to wait and clears the next passenger
    3. Ask the passenger to change relative details
    4. Do the changes of its own and book the ticket
    5. Ask the passenger to meet the reservation manager
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