GCSE OCR Computer Science Defensive Design & Testing: The alarm system can also have m

Question

The alarm system can also have many sensors. Each type of sensor has a code. The code for each sensor is from the list below:

| Code | Sensor       |
|------|--------------|
| M01  | Motion sensor|
| D01  | Door sensor  |
| W01  | Window sensor|

A program is written to monitor the sensors. The program:
- checks whether a sensor has been triggered
- determines if the alarm should be activated or not based on the data entered

`SensorType` is an input variable that stores the type of sensor to be checked.

1. `CheckSensorStatus(sensorCode)` function checks the status of the sensor
   - `sensorCode` = input; imports the `sensorType`

2. `AlarmStatus` = determines the output of the sensor

3. `SensorCode` = inputs the `sensorType`

4. Calls:`CheckSensorStatus(SensorType)`

Complete the program:

```python
if sensorCode == 'M01':
    print('Motion sensor triggered!')
elif sensorCode == 'D01':
    print('Door sensor triggered!')
elif sensorCode == 'W01':
    print('Window sensor triggered!')
else:
    print('Unknown sensor!')
```

Give the code number where the sensor is located.

The alarm system can also have many sensors - OCR - GCSE Computer Science - Question 6 - 2023 - Paper 2

Worked Solution & Example Answer:The alarm system can also have many sensors - OCR - GCSE Computer Science - Question 6 - 2023 - Paper 2

Give the code number of the variable used in the program.

Identify the data type of the variable used.

Give the line number that contains a function call.

Identify two programming constructs that have been used in the program.

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