MCQ1 mark
In C runtime environment, which one of the following is stored in heap?
Single correct
MCQ2 marks
Consider the following program:
int main() int f1() int f2(int X) int f3()
{ { { {
f1(); return(1); f3(); return(5);
f2(2); } if (X==1) }
f3(); return f1();
return(0); else
} return (X*f2(X-1));
}
Single correct
Answer key coming soon
MCQ1 mark
Consider the following statements.
: The sequence of procedure calls corresponds to a preorder traversal of the activation tree.
: The sequence of procedure returns corresponds to a postorder traversal of the activation tree.
Which one of the following options is correct?
Single correct
Answer key coming soon
MCQ1 mark
Consider the following statements.
I. Symbol table is accessed only during lexical analysis and syntax analysis.
II. Compilers for programming languages that support recursion necessarily need heap storage for memory allocation in the run-time environment.
III. Errors violating the condition '*any variable must be declared before its use*' are detected during syntax analysis.
Which of the above statements is/are TRUE?
Single correct
Answer key coming soon
MCQ2 marks
What will be the output of the following pseudo-code when parameters are passed by reference and dynamic scoping is assumed?
a=3;
void n(x) {x = x * a; print(x);}
void m(y) {a = 1; a = y - a; n(a); print(a);}
void main() {m(a);}Single correct
Answer key coming soon
MCQ1 mark
Which one of the following is NOT performed during compilation?
Single correct
MCQ1 mark
Which of the following statements are CORRECT?
1) Static allocation of all data areas by a compiler makes it impossible to implement recursion.
2) Automatic garbage collection is essential to implement recursion.
3) Dynamic allocation of activation records is essential to implement recursion.
4) Both heap and stack are essential to implement recursion.
Single correct
MCQ2 marks
Consider the program given below, in a block-structured pseudo-language with lexical scoping and nesting of procedures permitted.
Program main;
Var ...
Procedure A1;
Var ...
Call A2;
End A1
Procedure A2;
Var ...
Procedure A21;
Var ...
Call A1;
End A21
Call A21;
End A2
Call A1;
End main.
Single correct
Answer key coming soon
Use ← → to move