CS402 Current Paper

Total Question 45
40(1) + 3(2 marks) + 3(3 marks) + 3(5 marks)

1. Difference between semi-word and word with example?
2. If there are more than one edges between two states then we can replace them by one edge in a TG. Explain it with examples?
3. How can you say that two FAs are equivalent?
Note: There were three questions related to equivalent of FAs and/ or Languages?
4. A graph was given and infix and prefix calculation of that graph was required like


Note: Here only 5 was replaced by 7.

5. What is a production?
6. This example was same in the Paper. Is it ambiguous? How can we eliminate Ambiguity?

CS402 Current Paper

Assalamoalaikum.........
today's automata paper was really confusing........false n true statement bohat hi chicher qisam ki theen.....
moor n mealy machine say thay mcq.....TM say related thay.......mid say related stuff say bhi kafi aaya tha.......
40 mcq thay
2marks k i think 3 n
3 k bhi 3 and
5 k bhi 3 thay.......

even n odd palendrome k CFG thay ....even language ka CFG without multiple of 3 aaya tha.....5 marks


pop n push .......both n separately ...2 and 3 marks..
differentiate Live Production, Dead Production 5 marks .....
ak important q meray pass tha last papers ka yeah bhi aaya tha......


If L1,L2 and L3 be any three finite languages over Sigma = {a,b}, then how will be



(L1 INTERSECTION L2) Union (L2 INTERSECTION L3) ≠ Ø