An organisation uses a distributed database over two sites, A and B:

$$ Site A holds a relation Passenger$($passenger id$,$ first name, last name$).$ Values for each

of the attributes, i$.$e$.$ passenger id$,$ first name and last name require $30$ byte each.

$$ Site B holds a relation Flights$($flight id$,$ time, seat, passenger id$).$

Each value of attributes flight id and passenger id require $30$ byte, each value of seat

require $15$ byte, and each value for attribute time requires $25$ byte.

Assume the following:

$|\backslash$pi passenger id$($Flights$)|=100000$

$|\backslash$pi passenger id$(\backslash$sigma time$=10/12/2018$ at $10$:$00($Flights$))|=1000$

$|$Passenger n $\backslash$sigma time$=10/12/2018$ at $10$:$00($Flights$)|=1000$

$|\backslash$pi flight id$(\backslash$sigma time$=10/12/2018$ at $10$:$00($Flights$)$ n Passenger$)|=10$

$|$Passenger$|=100000$

To execute the query $\backslash$pi first name,last name,flight id$,$time$($ Passenger $./\backslash$sigma time$=10/12/2018$ at $10$:$00($ Flights$))$ at

site B$,$ how many bytes have to be transferred between A and B at a minimum?