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A nondeterministic finite automaton with ?-moves is an extension of nondeterministic finite automaton

True

False

May be

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Which of the following are regular sets?
I. { a^n b^2m | n>=0, m>=0}

II. {a^n b^m |n=2m}

III. {a^n b^m | n!= m}

IV {xcy |x,y



            
                                                            
                            
                            A
                            
                                I and IV                            
                        
                                            
                            
                            B
                            
                                I and III                            
                        
                                            
                            
                            C
                            
                                I and only                            
                        
                                            
                            
                            D
                            
                                IV                            
                        
                                                

            
                Correct Answer: A



        
            
            
                            
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                MCQ            
            
        

        
            
                2.
                The set of all strings over ? = {a,b} in which strings consisting a
            

            
                                                            
                            
                            A
                            
                                ab                            
                        
                                            
                            
                            B
                            
                                a*bbb                            
                        
                                            
                            
                            C
                            
                                (a+b)* bb                            
                        
                                            
                            
                            D
                            
                                All of the mentioned                            
                        
                                                

            
                Correct Answer: C
                
            
        

        
            
            
                            
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                3.
                The grammar G: S ? SS | a | b is ambiguous. Check all and only the strings that have exactly two leftmost derivations in G
            

            
                                                            
                            
                            A
                            
                                bbb                            
                        
                                            
                            
                            B
                            
                                ab                            
                        
                                            
                            
                            C
                            
                                All of the mentioned                            
                        
                                            
                            
                            D
                            
                                None of the mentioned                            
                        
                                                

            
                Correct Answer: C
                
            
        

        
            
            
                            
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                4.
                Regular expression (x/y)(x/y) denotes which of the following set?
            

            
                                                            
                            
                            A
                            
                                {xy,xy}                            
                        
                                            
                            
                            B
                            
                                {xx,xy,yx,yy}                            
                        
                                            
                            
                            C
                            
                                {x,y}                            
                        
                                            
                            
                            D
                            
                                {x,y,xy}                            
                        
                                                

            
                Correct Answer: B
                
            
        

        
            
            
                            
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                5.
                RE can be used only for values of type string and number.
            

            
                                                            
                            
                            A
                            
                                True                            
                        
                                            
                            
                            B
                            
                                False                            
                        
                                            
                            
                            C
                            
                                n>   
 Explanation :                             
                        
                                            
                            
                            D
                            
                                div class="v-slide-group__next v-slide-group__next--disabled">
 Explanation :                             
                        
                                                

            
                Correct Answer: B



        
            
            
                            
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