Plz solve with explaination.

Question

. Consider a concurrent program with two processes P & Q, where A, B, C, D & E are arbitrary atomic statements; assume that main program does a Par begin of the two processes:

Void P( )                              Void Q( )

                                         {

                                          D;

                                          E;

                                          }

{ A; 

B;

C;

}

Which of the following statement is True?

(a) It is never possible to generate output ‘C’ before output ‘E’

(b) The order of Execution of statements will be same independent of the process execution

(c) The relative order among the statements of P & Q is always maintained

(d) None

Comments

relative order will be maintained

Answer 1

relative order among statements of p and q is maintained ....because wherever preemption take place,it is guranted that statements in p and q is not altered... like A D E B C or A B D E C but it cannot be like E D A C B or ANYthing like that.