LFCS Free Practice Test

Which of the following commands is used to update the list of available packages when using dpkg based package management?

1. A. apt-get update
2. B. apt-get upgrade
3. C. apt-cache update
4. D. apt-get refresh
5. E. apt-cache upgrade

Correct Answer: A

CORRECT TEXT
On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)

1. A.

Correct Answer: /etc/shadow

Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting?

1. A. tune2fs -d 200 /dev/sda1
2. B. tune2fs -c 200 /dev/sda1
3. C. tune2fs -i 200 /dev/sda1
4. D. tune2fs -n 200/dev/sda1
5. E. tune2fs --days 200 /dev/sda1

Correct Answer: C

CORRECT TEXT
Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories? (Specify only the numerical umask value.)

1. A.

Correct Answer: 0077077

Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

1. A. New name servers may be added to the resolver configuration.
2. B. Network interfaces may become active or inactive.
3. C. The routing table may change.
4. D. IP addresses may change.
5. E. The system\'s host name may change.

Correct Answer: BCD