Deploying Access Lists in Linux Chapter 6

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What is the primary purpose of the Effective UserID in Linux?

To enable a non-privileged user to access files that can only be accessed by a privileged user (correct)
To temporarily switch to a non-privileged account
To define which files a process has access to
To specify the access permissions of subjects

What is the main difference between Real UserID and Effective UserID?

Real UserID is the same as the userID of the user who started the process, while Effective UserID can be changed (correct)
Real UserID is for privileged users, while Effective UserID is for non-privileged users
Real UserID is used for discretionary access control, while Effective UserID is used for mandatory access control
Real UserID defines access to files, while Effective UserID defines access to resources

What is the purpose of the Saved UserID in Linux?

To enable a non-privileged user to access files that can only be accessed by a privileged user
To temporarily switch to a non-privileged account (correct)
To define which files a process has access to
To save the userID of the user who started the process

What is the main characteristic of Discretionary Access Control (DAC)?

Access authorization is specified and enforced based on the identity of the user (D) Signup and view all the answers

What is the purpose of access control modes in Linux?

To specify the access permissions of subjects (D) Signup and view all the answers

What is the difference between 'read' and 'write' permissions in Linux?

'Read' allows observing the resource, while 'write' allows observing and altering the resource (C) Signup and view all the answers

What is a key characteristic of Discretionary Access Control (DAC)?

It is discretionary and can be changed by the owner (A) Signup and view all the answers

Which of the following operating systems uses Discretionary Access Control (DAC)?

Both Windows and Linux (A) Signup and view all the answers

What is the limitation of traditional file permissions in Linux?

Each file and directory can have only one user and group owner at a time (C) Signup and view all the answers

What is the primary purpose of Linux Access Control Lists (ACLs)?

To provide additional flexibility in access control (C) Signup and view all the answers

What is a default ACL in Linux?

An access control list that can only be associated with a directory (D) Signup and view all the answers

How many types of ACLs are there in Linux?

Two (C) Signup and view all the answers

What is the name of the subdirectory where the sales department users can add invoices?

invoices (B) Signup and view all the answers

What is the default password for the users sysadmin1, operator1, consultant1, and consultant2?

redhat (D) Signup and view all the answers

What is the name of the executable script created in the /shares/content directory?

hello.sh (B) Signup and view all the answers

Which group has full access to the /shares/content directory, but with an exception for one user?

consultants (C) Signup and view all the answers

What is the purpose of adding appropriate ACL entries to the /shares/content directory and its contents?

To ensure that future files and directories stored in /shares/content get appropriate ACL entries applied (B) Signup and view all the answers

What is the primary purpose of setting a default ACL on a directory?

To ensure files and directories created within the directory inherit certain ACLs (C) Signup and view all the answers

What type of ACL can be added or modified to add multiple entries with the same command?

Other ACL (A) Signup and view all the answers

What permission is included in the list entries to allow directory search permission when editing ACLs on directories?

Execute permission (D) Signup and view all the answers

What is the purpose of the Mask entry in an ACL?

To define the effective rights mask (B) Signup and view all the answers

What is the correct order of steps to create the specified directory structure and add appropriate ACL entries?

Create groups, create users, create directory structure, add ACL entries (C) Signup and view all the answers

What is the restriction placed on Kenny's access to files created by Fred in the reports subdirectory?

Kenny can only read files created by Fred (C) Signup and view all the answers