Compilers Test Online Exam Quiz
Compilers Test GK Quiz. Question and Answers related to Compilers Test. MCQ (Multiple Choice Questions with answers about Compilers Test
The set of all strings over ? = {a,b} in which all strings having bbbb as substring is?
Options
A : (a+b)* bbbb (a+b)*
B : (a+b)* bb (a+b)*bb
C : bbb(a+b)*
D : bb (a+b)*
Which of the following regular expression denotes zero or more instances of an a or b?
Options
A : a/b
B : (a/b)*
C : (ab)*
D : a*Ib
The set of all strings over ? = {a,b} in which strings consisting a’s and b’s and ending with in bb is?
Options
A : ab
B : a*bbb
C : (a+b)* bb
D : All of the mentioned
The set of all strings over ? ={a,b} in which a single a is followed by any number of b’s a single b followed by any number of a’s is?
Options
A : ab* + ba*
B : ab*ba*
C : a*b + b*a
D : None of the mentioned
The string (a)|((b)*(c)) is equivalent to ______________
Options
A : Empty
B : abcabc
C : b*c|a
D : None of the mentioned
Which of the following identity is true?
Options
A : ? + RR* = R* = ? + R*R
B : (R1R2)*R1 = R1 (R2R1)*
C : R*R* = R*
D : All of the mentioned
If L1 and L2 are regular languages is/are also regular language(s).
Options
A : L1 + L2
B : L1L2
C : L1
D : All of the mentioned
If P, Q, R are three regular expressions and if P does not contain a then the equation R = R + RP has a unique solution given by?
Options
A : R = QP*
B : R = P*Q
C : R = RP
D : None of the mentioned
Regular expressions are used to represent which language?
Options
A : Recursive language
B : Context free language
C : Regular language
D : All of the mentioned
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