Why supervisory control enables remote operation in SCADA systems - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the main component that allows remote operation in a SCADA system.

SCADA systems

class SCADAController:
    def __init__(self):
        self.control_mode = '[1]'

Drag options to blanks, or click blank then click option'

Aautomatic

Bsupervisory

Cmanual

Doffline

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'manual' which requires local operation.

The supervisory control mode allows operators to remotely monitor and control processes, enabling remote operation.

2fill in blank

medium

Complete the code to show how data is sent from remote sensors to the supervisory system.

SCADA systems

def send_sensor_data(sensor):
    data = sensor.read()
    transmit_to_central_system(data, protocol='[1]')

Drag options to blanks, or click blank then click option'

AFTP

BHTTP

CSCADA

DSMTP

Attempts:

3 left

💡 Hint

Common Mistakes

Using HTTP which is not typical for SCADA data transmission.

SCADA protocol is used to transmit sensor data in supervisory control systems for remote operation.

3fill in blank

hard

Fix the error in the code that attempts to remotely control a device using supervisory commands.

SCADA systems

def remote_control(device, command):
    if command == '[1]':
        device.execute(command)
    else:
        raise ValueError('Invalid command')

Drag options to blanks, or click blank then click option'

Astart

Brun

Cexecute

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'run' which is not recognized by the device.

The command 'start' is a valid supervisory control command to initiate device operation remotely.

4fill in blank

hard

Fill both blanks to complete the function that checks system status and sends alerts if needed.

SCADA systems

def check_system_status(status):
    if status [1] 'error':
        send_alert('[2]')

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A==

Bwarning

Ccritical

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' which reverses the logic.

The function checks if the status equals 'error' and sends a 'critical' alert for remote supervisory action.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps device IDs to their statuses if they are active.

SCADA systems

active_devices = {device_id[1]: status for device_id, status in devices.items() if status [2] 'active' and [3](device_id, str)}

Drag options to blanks, or click blank then click option'

A.upper()

B==

Cisinstance

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using '.upper()' which is valid but not the intended answer here.

The comprehension converts device IDs to lowercase strings, checks if status equals 'active', and verifies device_id is a string type.