RHCSA RHCSA File Permissions and ACLs 2

Question 1

A file has permissions rwxr-x---. Which octal notation represents this?

Accepted Answer

750

Answer

755

Answer

740

Answer

760

Question 2

Which command removes the execute permission for 'others' on a file named script.sh?

Accepted Answer

chmod o-x script.sh

Answer

chmod a-x script.sh

Answer

chmod u-x script.sh

Answer

chmod g-x script.sh

Question 3

What does the sticky bit do when set on a directory?

Accepted Answer

Only the file owner or root can delete files within the directory

Answer

Files in the directory cannot be executed

Answer

All files inherit the directory's group ownership

Answer

The directory cannot be renamed by non-owners

Question 4

A user wants to set an ACL so that user 'alice' has read-only access to /data/report.txt. Which command is correct?

Accepted Answer

setfacl -m u:alice:r /data/report.txt

Answer

setfacl -x u:alice:r /data/report.txt

Answer

getfacl -m u:alice:r /data/report.txt

Answer

chmod u:alice:r /data/report.txt

Question 5

Which command displays the ACL entries for the file /etc/myconfig?

Accepted Answer

getfacl /etc/myconfig

Answer

setfacl -l /etc/myconfig

Answer

ls -acl /etc/myconfig

Answer

stat --acl /etc/myconfig

Question 6

What is the effect of running 'chmod 4755 /usr/bin/newprog'?

Accepted Answer

Sets the setuid bit and makes the file rwxr-xr-x

Answer

Sets the sticky bit and makes the file rwxr-xr-x

Answer

Sets the setgid bit and makes the file rwxr-xr-x

Answer

Sets the setuid bit and makes the file rw-r--r--

Question 7

A new file is created by a user whose umask is 027. What are the default permissions on the file?

Accepted Answer

640

Answer

750

Answer

644

Answer

755