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109.

Which languages necessarily need heap allocation in the runtime environment?
[1 mark]
(A) Those that support recursion
(B) Those that use dynamic scoping
(C) Those that allow dynamic data structures
(D) Those that use global variables

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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110.

Which data structure in a compiler is used for managing information about variables and their attributes? [1 mark]
(A) Abstract syntax tree
(B) Symbol table
(C) Semantic stack
(D) Parse table

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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111.

Two alternative packages A and B are available for processing a database having 10^k records. Package A requires 0.0001n² time units and package B requires 10nlog₁₀n time units to process n records. What is the smallest value of k for which package B will be preferred over A? [1 mark]
(A) 12
(B) 10
(C) 6
(D) 5

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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112.

What does the following program print?
# include <stdio . h>
void f ( int *p, int *q)
{
p = q;
*p = 2;
}
int i = 0, j = 1 ;
int main ( )
{
f( &i, &j);
printf (“%d %d\n”, i, j) ;
return 0;
}
[1 mark]
(A) 2 2
(B) 2 1
(C) 0 1
(D) 0 2

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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113.

In a binary tree with n nodes, very node has an odd number of descendants. Every node is considered to be its own descendant. What is the number of nodes in the tree that have exactly one child? [1 mark]
(A) 0
(B) 1
(C) (n-1)/2
(D) n-1

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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114.

The Boolean expression for the output f of the multiplexer shown below is [1 mark]

(A) P ⊕ Q ⊕ R
(B) P ⊕ Q ⊕ R
(C) P + Q + R
(D) P + Q + R

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2010

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