Headless deployment setup in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to enable SSH on Raspberry Pi for headless setup.

Raspberry Pi

sudo systemctl [1] ssh

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

Aenable

Bdisable

Cstop

Drestart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'disable' instead of 'enable' disables SSH access.

Using 'stop' or 'restart' only affects current session, not startup.

To allow remote access, SSH must be enabled using systemctl enable ssh.

2fill in blank

medium

Complete the command to create an empty file named 'ssh' in the boot directory to enable SSH on first boot.

Raspberry Pi

touch /boot/[1]

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

Awpa_supplicant.conf

Bconfig.txt

Ccmdline.txt

Dssh

Attempts:

3 left

💡 Hint

Common Mistakes

Creating 'config.txt' or 'cmdline.txt' does not enable SSH.

Using 'wpa_supplicant.conf' is for Wi-Fi setup, not SSH.

Creating an empty file named ssh in the boot directory enables SSH on first boot.

3fill in blank

hard

Fix the error in the command to add Wi-Fi credentials to the Raspberry Pi's wpa_supplicant.conf file.

Raspberry Pi

sudo nano /etc/wpa_supplicant/[1]

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

Anetwork.conf

Binterfaces

Cwpa_supplicant.conf

Dwlan0.conf

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'network.conf' or 'interfaces' are incorrect for this purpose.

Editing 'wlan0.conf' is not standard for Raspberry Pi Wi-Fi setup.

The correct file to edit Wi-Fi settings is wpa_supplicant.conf.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps each device name to its IP address if the device is active.

Raspberry Pi

active_devices = {device: info[1] for device, info in devices.items() if info['status'] [2] 'active'}

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

A['ip']

B==

C!=

D.get('ip')

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' instead of '==' reverses the condition.

Using '.get('ip')' is valid but not the expected syntax here.

The dictionary comprehension extracts the IP address using ['ip'] and filters devices with status equal to 'active'.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase device names to their IPs if the IP is not empty.

Raspberry Pi

filtered = { [1]: [2] for [3], info in devices.items() if info['ip'] != '' }

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

Adevice.upper()

Binfo['ip']

Cdevice

Dinfo

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'info' as key or value incorrectly.

Using 'device' instead of 'device.upper()' for keys.

The comprehension uses device.upper() as keys, info['ip'] as values, and iterates over device, info.