User accounts and permissions in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a new user account named 'alice'.

Intro to Computing

create_user [1]

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

Aalice

Bbob

Cadmin

Dguest

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different username than 'alice'.

Confusing user roles with usernames.

The command create_user alice creates a new user account named 'alice'.

2fill in blank

medium

Complete the command to grant read permission to user 'alice' on file 'report.txt'.

Intro to Computing

grant_permission [1] report.txt read

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

Awrite

Badmin

Calice

Dguest

Attempts:

3 left

💡 Hint

Common Mistakes

Using permission types instead of usernames.

Confusing file names with user names.

The command grant_permission alice report.txt read gives user 'alice' read access to the file 'report.txt'.

3fill in blank

hard

Fix the error in the command to revoke write permission from user 'bob' on 'data.csv'.

Intro to Computing

revoke_permission [1] data.csv write

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

Adata.csv

Bbob

Cwrite

Dalice

Attempts:

3 left

💡 Hint

Common Mistakes

Using permission types or file names instead of the username.

Mixing up usernames.

The command revoke_permission bob data.csv write correctly revokes write permission from user 'bob' on the file 'data.csv'.

4fill in blank

hard

Fill both blanks to check if user 'carol' has execute permission on 'script.sh'.

Intro to Computing

check_permission [1] [2] execute

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

Acarol

Bread

Cscript.sh

Dwrite

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of username and filename.

Using permission types instead of username or filename.

The command check_permission carol script.sh execute checks if user 'carol' has execute permission on the file 'script.sh'.

5fill in blank

hard

Fill both blanks to create a dictionary mapping users to their permission levels for 'project.doc'.

Intro to Computing

permissions = {: {BLANK_2}} for {{BLANK_2}} in users

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

Auser

Bpermissions[user]

Cusers

D{

Attempts:

3 left

💡 Hint

Common Mistakes

Missing the opening brace for the dictionary.

Using incorrect variable names.

Swapping keys and values.

The dictionary comprehension permissions = {user: permissions[user] for user in users} creates a mapping of each user to their permission level.