Operating system setup (Raspberry Pi OS) - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Raspberry Pi OS command?

You run the command ls /boot on your Raspberry Pi OS terminal. What will this command output?

Raspberry Pi

ls /boot

A Displays the Raspberry Pi OS version

B Lists all files and folders in the /boot directory

C Shows the current directory path

D Shows the disk usage of the /boot directory

💡 Hint

Think about what the 'ls' command does in Linux.

The ls command lists files and folders in the specified directory. Here, it lists contents of /boot.

❓ Predict Output

intermediate

What is the output of this Python code on Raspberry Pi OS?

You run this Python code on your Raspberry Pi OS terminal. What is the output?

Raspberry Pi

import os
print(os.uname().sysname)

A Linux

B RaspberryPiOS

C Windows

D Darwin

💡 Hint

The os.uname() function returns system information.

The sysname attribute returns the operating system name. Raspberry Pi OS is based on Linux, so it returns 'Linux'.

🔧 Debug

advanced

Why does this Raspberry Pi OS command fail?

You try to update your Raspberry Pi OS packages with this command but get an error. What is the cause?

Raspberry Pi

sudo apt-get update && sudo apt-get upgrade -y

A Your internet connection is down or DNS is not working

B You need to run the command as root user without 'sudo'

C You forgot to run 'sudo apt-get update' first

D The command syntax is incorrect

💡 Hint

Check if your Raspberry Pi can access the internet.

If the internet or DNS is down, apt-get update cannot fetch package lists, causing failure.

📝 Syntax

advanced

Which command correctly sets the Raspberry Pi OS hostname?

You want to change your Raspberry Pi's hostname to 'pi-zero'. Which command is correct?

A set-hostname sudo pi-zero

B hostnamectl sudo set-hostname pi-zero

C sudo set-hostname hostname pi-zero

D sudo hostnamectl set-hostname pi-zero

💡 Hint

The hostnamectl command manages hostnames and requires sudo.

The correct syntax is sudo hostnamectl set-hostname pi-zero. Other options have wrong order or commands.

🚀 Application

expert

How many files are in the Raspberry Pi OS /etc directory after a fresh install?

You freshly installed Raspberry Pi OS and run ls /etc | wc -l. What is the expected number of files and directories?

A About 1000

B About 10

C About 300

D About 50

💡 Hint

The /etc directory contains many configuration files and folders.

A fresh Raspberry Pi OS install has roughly 300 files and directories in /etc, including configs and subfolders.