1
GATE CSE 1990
MCQ (Single Correct Answer)
+2
-0.6
Match the pairs in the following:

List - I

(A) Small talk
(B) LISP
(C) Prolog
(D) VAL

List - II

(p) Logic programming
(q) Data flow programming
(r) Functional programming
(s) Object-Oriented programming
A
A - s; B - r; C - p; D - q
B
A - r; B - s; C - p; D - q
C
A - s; B - r; C - q; D - p
D
A - s; B - p; C - r; D - q
2
GATE CSE 1990
MCQ (More than One Correct Answer)
+2
-0
It is decidable whether:
A
An arbitrary Turing machine halts after 10 steps.
B
A Turing machine prints a specific letter.
C
A Turing machine computes the product of two numbers.
D
None of the above.
3
GATE CSE 1990
MCQ (Single Correct Answer)
+2
-0.6
Recursive languages are:
A
A proper superset of context free languages.
B
Always recognizable by pushdown automata.
C
Also called Type $$(0)$$ languages.
D
Recognizable by Turing machines.
4
GATE CSE 1990
MCQ (Single Correct Answer)
+2
-0.6
Let $${R_1}$$ and $${R_2}$$ be regular sets defined over the alphabet $$\sum \, $$ then:
A
$${R_1} \cap R{}_2$$ is not regular.
B
$${R_1} \cup R{}_2$$ is regular.
C
$$\sum {^{^ * }} $$ $$-$$ $${R_1}$$ is regular.
D
$${R_1}{}^ * $$ is not regular.
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