[Jan 13, 2023] Latest LFCS Exam with Accurate Linux Foundation Certified System Administrator PDF Questions
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NEW QUESTION 40
Which of the following commands can be used to display the inode number of a given file?
- A. ls
- B. inode
- C. cp
- D. ln
Answer: A
NEW QUESTION 41
Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)
- A. --since
- B. --upto
- C. --from
- D. --date
- E. --until
Answer: A,E
NEW QUESTION 42
When the command echo $$ outputs 12942, what is the meaning of 12942?
- A. It is the process ID of the last command which has been placed in the background.
- B. It is the process ID of the current shell.
- C. It is the process ID of the last command executed.
- D. It is the process ID of the echo command.
Answer: B
NEW QUESTION 43
Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correct answers.)
- A. /sbin/mke2fs -j /dev/sdb1
- B. /sbin/mkfs -c ext3 /dev/sdb1
- C. /sbin/mke3fs -j /dev/sdb1
- D. /sbin/mkfs -t ext3 /dev/sdb1
Answer: A,D
NEW QUESTION 44
Which of the following commands will reduce all consecutive spaces down to a single space?
- A. tr -s ' ' < a.txt > b.txt
- B. tr -d ' ' < a.txt > b.txt
- C. tr '\s' ' ' < a.txt > b.txt
- D. tr -c ' ' < a.txt > b.txt
- E. tr -r ' ' '\n' < a.txt > b.txt
Answer: A
NEW QUESTION 45
Which of the following information is stored within the BIOS? (Choose TWO correct answers.)
- A. Boot device order
- B. Linux kernel version
- C. The system's hostname
- D. Timezone
- E. Hardware configuration
Answer: A,E
NEW QUESTION 46
Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)
- A. telinit 6
- B. shutdown -r "rebooting"
- C. telinit 0
- D. shutdown -k now "rebooting"
- E. shutdown -r now
Answer: A,E
NEW QUESTION 47
CORRECT TEXT
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
/usr/bin/xwininfo, xwininfo
NEW QUESTION 48
What is true regarding the command sendmail?
- A. It is only available when the sendmail MTA is installed.
- B. With any MTA, the sendmail command must be run periodically by the cron daemon.
- C. All MTAs, including Postfix and Exim, provide a sendmail command.
- D. The sendmail command prints the MTAs queue history of which mails have been sent successfully.
Answer: C
NEW QUESTION 49
Which of the following commands will change the quota for a specific user?
- A. repquota
- B. quota -e
- C. quota
- D. edquota
Answer: D
NEW QUESTION 50
Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)
- A. Upstart
- B. SysV init
- C. startd
- D. systemd
- E. SysInit
Answer: A,B,D
NEW QUESTION 51
Which type of filesystem is created by mkfs when it is executed with the block device name only and without any additional parameters?
- A. ext2
- B. XFS
- C. VFAT
- D. ext4
- E. ext3
Answer: A
NEW QUESTION 52
What is true about the file /etc/localtime?
- A. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
- B. It is created and maintained by the NTP service based on the geolocation of the system's IP address.
- C. It is a plain text file containing a string such as Europe/Berlin.
- D. It is a symlink to /sys/device/clock/ltime and always contains the current local time.
Answer: A
NEW QUESTION 53
Which character starts a comment line in a shell script file?
- A. ;
- B. /
- C. *
- D. #
Answer: D
NEW QUESTION 54
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)
- A. To create snapshots.
- B. To create RAID 9 arrays.
- C. To dynamically change the size of logical volumes.
- D. To encrypt logical volumes.
- E. To dynamically create or delete logical volumes.
Answer: A,C,E
NEW QUESTION 55
Where are user specific crontabs stored?
- A. As individual per-user files within /var/spool/cron.
- B. In the .crontab file in the user's home directory.
- C. In the database file /etc/crontab.db which is shared by all users.
- D. As individual per-user files in /etc/cron.user.d.
- E. In the file /var/cron/user-crontab which is shared by all users.
Answer: A
NEW QUESTION 56
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