Why power modes matter for battery devices in ARM Architecture - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to select the power mode that saves the most battery.

ARM Architecture

power_mode = '[1]'  # Choose the mode that uses least energy

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

ASleep

BIdle

CActive

DPerformance

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Active or Performance mode which use more power.

The Sleep mode reduces power consumption by turning off most functions, saving battery life.

2fill in blank

medium

Complete the code to set the device to a mode that balances performance and battery life.

ARM Architecture

power_mode = '[1]'  # Balanced mode

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

AShutdown

BPerformance

CSleep

DIdle

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Performance mode which uses more battery.

The Idle mode reduces power use while keeping the device ready to respond quickly, balancing battery and performance.

3fill in blank

hard

Fix the error in the code to correctly set the power mode to Performance.

ARM Architecture

power_mode = '[1]'  # High power for best speed

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

ASleep

BPerformance

CHibernate

DIdle

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting Sleep or Hibernate which reduce power but slow performance.

Performance mode uses the most power to maximize speed and responsiveness.

4fill in blank

hard

Fill both blanks to create a dictionary mapping power modes to their battery usage levels.

ARM Architecture

battery_usage = {'Sleep': '[1]', 'Performance': '[2]'}

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ALow

BHigh

CMedium

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up which mode uses more power.

Sleep mode uses Low battery power, while Performance mode uses High power.

5fill in blank

hard

Fill all three blanks to create a dictionary showing power modes, their descriptions, and typical battery impact.

ARM Architecture

power_modes = {
  '[1]': {'desc': 'Lowest power use, device mostly off', 'impact': '[2]'},
  '[3]': {'desc': 'Full speed, highest power use', 'impact': 'High'}
}

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

ASleep

BIdle

CLow

DPerformance

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing mode names or battery impact levels.

Sleep mode has Low battery impact because the device is mostly off. Performance mode uses High power for full speed.