MCQ Set 2 O Level - Internet of Things and its Applications - BUILDING IOT APPLICATIONS

What will be the output of the following code?

int main()
{
int i=25;
int k=i%4;
print("%d\n",k);
}

What will be the output of the following code?

void main()
{
	int x = 5*6/2 +8;
	printf("%d",x);
	return 0;
}

What will be the output of the following Arduino code?

#define X 10;
void setup()
{
	X=0;
	Serial.begin(9600);
	Serial.print(X);
}
void loop()
{
	//Do nothing…
}

What will be the output of the following code?

int main()
{
	int a=5;
	while(a=123)
	{
		printf("RABBIT\n");
	}
	printf("GREEN");
	return 0;
}

What is the output of “pin 1” if “pin2” is sent “1011” where 1 is 5V and 0 is 0V?

int pin1 = 12;
int pin2 = 11;
void setup() {
   pinMode(pin1, OUTPUT);
   pinMode(pin2, INPUT);
   Serial.begin(9600);
}
void loop() {
  if(digitalRead(pin2)==1) {
	 digitalWrite(pin1,LOW);
	  }
else if(digitalRead(pin2)==0) {
digitalWrite(pin1,HIGH);
}
}

What will be the output of the following piece of code?

#include <stdio.h>
int main() 
{
	int i;
	for(i=0;i< 8; i++);
		printf("%d",i);
	return 0;
}

What is the output of C program with functions?

int main() 
{
  	int a = 0;
  	printf("AJAY");
	return 1;
   	printf("VIJAY");
   	return 1;
}