CS402 Midterm Online Quiz

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CS402-Midterm

1 / 50

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

2 / 50

The _______ machine helps in building a machine that can perform the addition of binary numbers.

3 / 50

TG is always deterministic.

4 / 50

In FA final state represent by _________sign

5 / 50

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

6 / 50

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

7 / 50

Languages generated by kleene star are always ______________.

8 / 50

a(a+b)*a+b(a+b)*b is RE for the language defined over S={a,b} having words beginning and ending with same letters

9 / 50

One language can represents more than one RE.

10 / 50

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

11 / 50

Then initial state of FA3 will consist of

12 / 50

Length of strings, generated by infinite language is_______

13 / 50

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

14 / 50

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

15 / 50

The length of output string in case of _________ is one more than the length of corresponding input string.

16 / 50

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17 / 50

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

18 / 50

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

19 / 50

FA1 corresponds to r*, then FA1 must accept _______________ string.

20 / 50

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

21 / 50

Using tree structure final state represent by

22 / 50

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

23 / 50

Languages generated by kleene star are always ______________.

24 / 50

In TG there may exist no paths for certain string.

25 / 50

In FA final state represent by _________sign

26 / 50

TG can more then one initial state

27 / 50

a*b* = (ab)* this expression is __________

28 / 50

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

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

Every FA should be __________

34 / 50

GTG can have _______________ final state.

35 / 50

Languages generated by kleene star are always ______________.

36 / 50

Σ={a,Aa,Abb}, then string aAaAbbAa has ________ length.

37 / 50

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

38 / 50

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

39 / 50

In NFA, there may be more than one transition for certain letters and there may not be any transition for certain letters. This statement is ______________.

40 / 50

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

41 / 50

In GTG, if a state has more than one incoming transitions from a state. Then all those incoming transitions can be reduced to one transition using _____________ sign

42 / 50

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

43 / 50

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

44 / 50

“Every Infinite language is regular” this statement is

45 / 50

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

46 / 50

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

47 / 50

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

48 / 50

In TG there may exist no paths for certain string.

49 / 50

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

50 / 50

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

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