Linux Foundation LFCS Questions Answers

Linux Foundation Certified System Administrator Questions and Answers

Question 29

Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

2001:db8::15 www.example.com www

www.example.com www 203.0.13.15

203.0.113.15 www.example.com www

www.example.com,www 203.0.13.15,2001:db8::15

2003.0.113.15,2001:db8::15 www.example.com www

Question 30

What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

Entries for all possible devices get created on boot even if those devicesare not connected.

Additional rules for udev can be created by adding them to /etc/udev/rules.d/.

When using udev, it is not possible to create block or character devices in /dev/ using mknod.

The /dev/ directory is a filesystem of type tmpfs andis mounted by udev during system startup.

The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

Question 31

Which of the following statements is correct when talking about /proc/?

All changes to files in /proc/ are stored in /etc/proc.d/ and restored on reboot.

All files within /proc/ are read-only and their contents cannot be changed.

All changes to files in /proc/ are immediately recognized by the kernel.

All files within/proc/ are only readable by the root user.

Question 32

Which of the following commands prints a listof usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

fmt -f 1,4 /etc/passwd

split -c 1,4 /etc/passwd

cut -d : -f 1,4 /etc/passwd

paste -f 1,4 /etc/passwd