CS402 Midterm Online Quiz

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CS402-Midterm

1 / 50

“Every finite language can be expressed by FA”. This statement is __________.

2 / 50

Length of strings, generated by infinite language is_______

3 / 50

In TG there may exist no paths for certain string.

4 / 50

In FA final state represent by _________sign

5 / 50

One FA has n states and m letters in the alphabet. Then FA will have _____ number of transitions in the diagram.

6 / 50

If FA1 accepts no string and FA2 accepts many strings, then FA1 + FA2 will be equal to

7 / 50

PALINDROME can be defined by more than one regular language

8 / 50

In TG, there may be a transition for null string.

9 / 50

GTG can have _______________ final state.

10 / 50

If a language is expressed through TG, then that language will have its RE.

11 / 50

RE for the language defined over Σ={a,b} having words starting with a is____

12 / 50

In TG there may exist no paths for certain string.

13 / 50

S={a,bb,bab,baabb} set of strings then S* will not have

14 / 50

In drawing FA3 (which is equal to FA1 + FA2), a state will be declared final if

15 / 50

In FA, if one enters in a specific state but there is no way to leave it, then that specific state is called

16 / 50

Then initial state of FA3 will consist of

17 / 50

S= {a,bc,cc} has the latters

18 / 50

Alphabet S = {a,bc,cc} has _______ number of letters.

19 / 50

Two machines are said to be equivalent if they print the same output string when the different input string is run on them

20 / 50

In FA final state represent by _________sign

21 / 50

a (a + b)* is the RE of language defined over S = {a, b} having at least one a

22 / 50

If an alphabet has n number of letter, then number of strings of length m will be

23 / 50

FA1 and FA2 are two FA’s representing two languages. Then FA3, which is sum of FA1 and FA2, will accept the strings which are

24 / 50

In TG there may exist more than one path for certain string.

25 / 50

If L1 and L2 are expressed by regular expressions r1 and r2, respectively then the language expressed by r1 + r2 will be _________

26 / 50

In TG there may exist no paths for certain string.

27 / 50

“One language can be expressed by more than one NFA”. This statement is ______________.

28 / 50

One FA has 3 states and 2 letters in the alphabet. Then FA will have ___________ number of transitions in the diagram

29 / 50

Languages generated by kleene star are always ______________.

30 / 50

The clouser FA*(star on an FA ) always accept ______string

31 / 50

In GTG’s there may exist no path for a certain string.

32 / 50

Using tree structure final state represent by

33 / 50

If S = {ab, bb}, then S* will not contain

34 / 50

One language can be represented by more than one RE” this statement is____

35 / 50

Which statement is true?

36 / 50

Alphabet S = {a,bc,cc} has _______ number of letters.

37 / 50

One language can be represented by more than one RE” this statement is____

38 / 50

If an alphabet has n number of letter, then number of strings of length m will be

39 / 50

GTG can have _______________ final state.

40 / 50

If a language can be expressed through FA, then it can also be expressed through TG.

41 / 50

TG can have more than one initial state.

42 / 50

If in an NFA, ^ is allowed to be a label of an edge then that NFA is called _________.

43 / 50

If r1 and r2 are regular expressions then which of the following is not regular expression.

44 / 50

If a language has RE, then that language can be expressed through TG.

45 / 50

In which of the following language Rev(s)=s

46 / 50

“Every Infinite language is regular” this statement is

47 / 50

In FA one enter in specific stat but there is no way to leave it then state is called

48 / 50

Let S = {aa, bb} be a set of strings then s* will have

49 / 50

Languages generated by kleene star are always ______________.

50 / 50

RE for the language defined over Σ={a,b} having words starting with a is____

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