1
GATE CSE 1999
MCQ (Single Correct Answer)
+2
-0.6
Consider the following program in a language that has dynamic scooping:
var x: real;
procedure show;
         begin print(x); end;
procedure small;
         var x: real;
             begin x: = 0.125; show; end;
begin x:=0.25;
         show; small
         end;
Then the output of the program is:
A
0.125 0.125
B
0.25 0.25
C
0.25 0.125
D
0.125 0.25
2
GATE CSE 1999
MCQ (Single Correct Answer)
+2
-0.6
A certain processor supports only the immediate and the direct addressing modes. Which of the following programming language features cannot be implemented on this processor?
A
Pointers
B
Arrays
C
Records
D
Recursive procedures with local variable
3
GATE CSE 1998
MCQ (Single Correct Answer)
+2
-0.6
Faster access to non-local variables is achieved using an array of pointers to activation records called a
A
stack
B
heap
C
display
D
activation tree
4
GATE CSE 1997
MCQ (Single Correct Answer)
+2
-0.6

Given the following Pascal like program segment:

Procedure A;

     x,y:intger;
     Procedure B;
            x,z:real;
            S1
     end B;
     Procedure C;
            i:integer;
            S2;
     end C;
end A;

The variables accessible in S1 and S2 are

A
x or A, y, x of B and z in S1 and x of B, y and i in S2
B
x or B, y and z in S1 and x of B, i and z in S2
C
x or B, z and y in S1 and x of A, i and y in S2
D
None of the above
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