Why package managers install software in Linux CLI - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the command to install a package named 'nano' using a package manager.

Linux CLI

sudo apt-get [1] nano

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

Aremove

Bupgrade

Cupdate

Dinstall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'remove' instead of 'install' will uninstall the package.

Using 'update' only refreshes package lists, not install software.

The install command tells the package manager to download and set up the software package.

2fill in blank

medium

Complete the command to update the list of available packages before installing software.

Linux CLI

sudo apt-get [1]

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

Aupgrade

Binstall

Cupdate

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'upgrade' tries to update installed packages, not refresh the list.

Using 'install' tries to add new software, not update lists.

The update command refreshes the package list so the system knows about the latest software versions.

3fill in blank

hard

Fix the error in the command to upgrade all installed packages to their latest versions.

Linux CLI

sudo apt-get [1]

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

Aupgrade

Bupdate

Cinstall

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'update' only refreshes package lists, it does not upgrade software.

Using 'install' tries to add new packages, not upgrade existing ones.

The upgrade command updates all installed packages to the newest versions available.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps package names to their version numbers if the version is greater than 2.

Linux CLI

{pkg: ver[1] for pkg, ver in packages.items() if ver [2] 2}

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

A + ' stable'

B>

C<

D * 2

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' will select wrong versions.

Using '*' tries to multiply version numbers which are strings.

The first blank adds the string ' stable' to the version number. The second blank filters versions greater than 2.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase package names to their version if the version is at least 3.

Linux CLI

{ [1]: [2] for pkg, ver in packages.items() if ver [3] 3 }

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

Apkg.upper()

Bver

C>=

Dpkg.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' or '>' instead of '>=' changes which versions are included.

Using lower() changes keys to lowercase, not uppercase.

The keys are uppercase package names, the values are versions, and the filter selects versions 3 or higher.