Jawaharlal Nehru Technological University Hyderabad 2002 B.Tech Computer Science and Engineering gate - Question Paper

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1.14 The decimal value 0.25
(a) is equivalent to the binary value 0.1
(b) is equivalent to the binary value 0.01
(c) is equivalent to the binary value 0.00111…
(d) cannot be represented precisely in binary
1.15 The 2‘s complement representation of the decimal value œ15 is
(a) 1111 (b) 11111 (c) 111111 (d) 10001
1.16 Sign extension is a step in
(a) floating point multiplication
(b) signed 16 bit integer addition
(c) arithmetic left shift
(d) converting a signed integer from 1 size to a different
1.17 In the C language
(a) At most 1 activation record exists ranging from the current activation record
and the activation record for the main
(b) The number of activation records ranging from the current activation record and
the activation record fro the main depends on the true function calling
sequence.
(c) The visibility of global variables depends on the true function calling
sequence.
(d) Recursion requires the activation record for the recursive function to be
saved on a various stack before the recursive fraction can be called.
1.18 The outcomes returned by function under value-result and reference parameter
passing conventions
(a) Do not differ
(b) Differ in the presence of loops
(c) Differ in all cases
(d) May differ in the presence of exception
1.19 Relation R with an associated set of functional dependencies, F, is decomposed
into BCNF. The redundancy (arising out of functional dependencies) in the
resulting set of relations is
(a) Zero
(b) More than zero but less than that of an equivalent 3NF decomposition
+
(c) Proportional to the size of F
(d) Indetermine
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