CS402- Current final term subjective papersm July 2011

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52 total Q the,120 mnts,40 mcq's ,4Q k 2 marks,or 4Q k 3marks or 4Q k 5marks.total marks 80.RE k 1 2 mcqs the polish notation thi(o-o-o),

CNF ki definition,PDA in conversion form ki charactrestics thi

ambiguous grammer,

meally more me se 3 4 mcqs the,prefix ka 1 Q tha,

itna e yad...

Total Question 45

40(1) + 3(2 marks) + 3(3 marks) + 3(5 marks)

Difference between semi-word and word with example?
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?
How can you say that two FAs are equivalent?

Note: There were three questions related to equivalent of FAs and/ or Languages?

A graph was given and infix and prefix calculation of that graph was required like

Note: Here only 5 was replaced by 7.

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

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