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TCS Digital Variables and Registers Quiz- 1

Question 1

Time: 00:00:00

What is the output of this C code?



#include <stdio.h>

void main()

{

static int i;

printf(“i is %d”, i);

}

Garbage Value

Runtime Error

Zero

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Question 2

Time: 00:00:00

What is the output of this C code?



#include <stdio.h>

int *i;

int main()

{

if (i == NULL)

printf(“true\n”);

return 0;

}

true

true only if NULL value is 0

Compile time error

Nothing

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Question 3

Time: 00:00:00

What is the output of this C code?



#include <stdio.h>

static int i;

void main()

{

int i;

printf(“i is %d”, i);

}

Garbage Value

Runtime Error

Nothing

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Question 4

Time: 00:00:00

What is the output of this C code?



#include <stdio.h>

static int x = 5;

void main()

{

x = 9;

{

int x = 4;

}

printf(“%d”, x);

}

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Question 5

Time: 00:00:00

The scope of an automatic variable is:

Within the block it appears

Within the blocks of the block it appears

Until the end of program

Within the block it appears & Within the blocks of the block it appears

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Question 6

Time: 00:00:00

Automatic variables are allocated space in the form of a:

stack

queue

priority queue

random

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Question 7

Time: 00:00:00

Which of the following is a storage specifier?

enum

union

auto

volatile

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Question 8

Time: 00:00:00

Automatic variables are stored in

stack

data segment

heap

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Question 9

Time: 00:00:00

What is the output of this C code?



#include <stdio.h>

int main()

{

register int i = 10;

int *q = &i;

*q = 11;

printf(“%d %d\n”, i, *q);

}

Depends on whether i is actually stored in machine register

10 10

11 11

Compile time error

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Question 10

Time: 00:00:00

Register storage class can be specified to global variables

True

False

Depends on the compiler

Depends on the standard

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Question 11

Time: 00:00:00

Register variables reside in

stack

registers

heap

main memory

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Question 12

Time: 00:00:00

Which of the following operation is not possible in a register variable?

Reading the value into a register variable

Copy the value from a memory variable

Global declaration of register variable

All of the mentioned

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["0","40","60","80","100"]

["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

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