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Q.

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

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MCQ

1.

A regular expression enables a quick test to determine objects and text strings with undependable values.

A

True

B

False

C

n>

Discussion

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

Discussion

MCQ

3.

The RE gives none or many instances of an x or y is?

A

(x+y)

B

(x+y)*

C

(x+y)*

D

(xy)*

Discussion

MCQ

4.

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

Discussion

MCQ

5.

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

Discussion

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