DRDO Placement Paper Whole Testpaper -2 Sep 2007
hi Friends ..... There were two sections in the DRDO paper(CS)
Technical and aptitude
1.APTITUDE:- There were 50 questions in this section,questions were from simple reasoning.or I can say that reasoning was very easy,there were verbal and non-verbal type questions.but there were also questions from English and G.K.Although it was not mention in prospect that English and G.K questions will come,Some G.K.questions were easy like--Tank Developed by DRDO(Arjun).PRITHVI is what kind of missile(surface to surface).mahatma Gandhi during breaking ognsalt rule move up to(Dandi)...etc..
Questions of this section were average,not easy not tough.questions were as I remember Mostly from Automata so prepare well Automata.String generating ques. were there.
(A)The class of context-free language is not closed under1.Concatenation2.Union3.Intersection(ans)4.None
(b)Which of the following sentence is generated by the production Grammer.s->aSbAA->dccA1.abbbd2.aabccd(ans)3.aabd4.ababcd
(C) Hard disk has a rotation speed of 7200RPM. then the latency time isa) .4b) .6c) .7d) .9
some questions were from C output they were easy.
2 questions were related to Time-Complexity.
study from following books.
Computer Organization---William Stallings,Morris Mano
Theory of Computation---Aho and Ullman
computer Networks----William Stallings
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