Performance monitoring and optimization in SCADA systems - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the performance monitoring service.

SCADA systems

systemctl [1] scada-monitoring.service

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

Astatus

Brestart

Cstop

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'stop' instead of 'start' stops the service.

Using 'status' only shows the service state but does not start it.

The start command activates the performance monitoring service.

2fill in blank

medium

Complete the command to check CPU usage in the SCADA system.

SCADA systems

top -b -n 1 | grep [1]

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

Acpu

Bscada

Cmemory

Dload

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'memory' filters for RAM usage, not CPU.

Using 'load' shows system load averages, not detailed CPU info.

The cpu keyword filters the output to show CPU usage details.

3fill in blank

hard

Fix the error in the command to monitor network traffic on interface eth0.

SCADA systems

iftop -i [1]

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

Aeth1

Beth0

Cwlan0

Dlo

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'wlan0' monitors wireless, not wired interface.

Using 'lo' monitors loopback, not external traffic.

The interface eth0 is the correct network interface to monitor traffic on.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps sensor IDs to their load if load is above 70.

SCADA systems

{sensor_id: [1] for sensor_id, load in sensor_data.items() if load [2] 70}

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

Aload

B<

C>

Dsensor_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' would select loads below 70, opposite of requirement.

Mapping to sensor_id instead of load gives wrong values.

We want to map sensor IDs to their load values where load is greater than 70.

5fill in blank

hard

Fill all three blanks to filter and map sensor IDs to their status if status is 'active'.

SCADA systems

{ [1]: [2] for [3], status in sensors.items() if status == 'active' }

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

Aname

Bstatus

Dsensor_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'name' as key or value is incorrect here.

Mixing up sensor_id and status causes wrong dictionary structure.

We use sensor_id as key, status as value, and filter by active status.