1
GATE CSE 1999
MCQ (Single Correct Answer)
+1
-0.3
Context free languages are closed under:
A
Union, intersection
B
Union, Kleene closure
C
Intersection, complement
D
Complement, Kleene Closure
2
GATE CSE 1999
MCQ (Single Correct Answer)
+1
-0.3
Let $${L_D}$$ be the set of all languages accepted by a $$PDA$$ by final state and $${L_E}$$ the set of all languages accepted by empty stack. Which of the following is true?
A
$${L_D}\,\, = \,\,{L_E}$$
B
$${L_D}\,\, \supset \,\,{L_E}$$
C
$${L_D}\,\, \subset \,\,{L_E}$$
D
None of the above
3
GATE CSE 1999
MCQ (More than One Correct Answer)
+2
-0.6
If $${L_1}$$ is a context free language and $${L_2}$$ is a regular which of the following is/are false?
A
$${L_1} - {L_2}$$ is not context free
B
$${L_1} \cap {L_2}$$ is context free
C
$$ \sim {L_1}$$ is context free
D
$$ \sim {L_2}$$ is regular
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12