Iot MCQ Questions and Answers

What will be the output of the following code

#include <stdio.h>
void solve(){
    int b=4;
    int res = b++ + ++b + ++b;
    printf("%d", res);
}
int main(){
    solve();
    return 0;
}

What is the output of the following program?

for(;;)

{

Statements

}

What is the objective of the code given below if it is executed on the Arduino Uno?

#include<EEPROM.h>
int pin=13;
void setup() {
pinMode(pin,OUTPUT);
Serial.begin(9600);
{
void loop()
for(int i-0; i<EEPROM.length(); it+) {
EEPROM.write(i, 1)
digitalWrite(pin,HIGH;
exit(0);
}

What is the output of the following program?

for(;;) 
{
Statements
}

What is the objective of the code given below if it is executed on the Arduino Uno?

#include<EEPROM.h>
int pin=13;
void setup(){
pinMode(pin,OUTPUT);
Serial.begin(9600);
 void loop(){
for(int i-0; i<EEPROM.length(); i++) {
EEPROM.write(i, 1);
digitalWrite(pin, HIGH);
exit(0); 
}

Predict the output of the following code if the object is moving towards the sensor.

int op = 6;
int isBarrier = HIGH;
void setup() {
pinMode(op, INPUT)
Serial.begin(9600);
}
void loop(){
isBarrier = digitalRead(op);
if (isBarrier == LOW) {
Serial.println("1+");
}
else{
Serial.print("clear+"); 
delay(100);
}