NIELIT O Level Previous Year Solved Paper – M4 R5 JAN 2023 INTERNET OF THINGS AND ITS APPLICATIONS

What will be the output of the following code C?

#include 

void solve() {
    char ch[5] = "abcde";
    int ans = 0;
    for (int i = 0; i < 5; i++) {
        ans += (ch[i] - 'a');
    }
    printf("%d", ans);
}

int main() {
    solve();
    return 0;
}

						

What is the out come of the following Arduino code?

void setup(){

Serial.begin(9600);

}

void setup0{

Serial.write(20);

}

Predict the output of the following code if the object is moving away from the sensor

int op = 7;
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);
}

What will be the output of the following code

#include 
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(;;)

{

Statemernts

}

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

#include 

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);
  }
}

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 

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);
  }
}