NEW QUESTION 1
A user wants to list the lines of a log, adding a correlative number at the beginning of each line separated by a set of dashes from the actual message. Which of the following scripts will complete this task?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: D

NEW QUESTION 2
Find the file named core and remove it from the system. INSTRUCTIONS
Type “help” to display a list of available commands.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 3
Given the output below:

Which of the following commands can be used to remove MyPhoto.jpg from the current directory?

• A. unlink ./MyPhoto.jpg
• B. del Pictures/photo.jpg
• C. rm –rf ./Pictures
• D. rm –f MyPhoto.jpg
• E. ln –rm ./Pictures/photo.jpg

Answer: E

NEW QUESTION 4
A Linux administration is using a Linux system as a router. During the tests, the administrator discovers that IP packets are not being sent between the configured interfaces.
Which of the following commands enables this feature for IPv4 networks?

• A. cat /proc/sys/net/ipv4/ip_route > 1
• B. echo “1” > /proc/sys/net/ipv4/ip_forward
• C. echo “1” > /proc/sys/net/ipv4/ip_route
• D. echo “1” > /proc/sys/net/ipv4/ip_net

Answer: B

NEW QUESTION 5
A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the “dba” group and preserve existing group memberships?

• A. usermod –a –G dba jsmith
• B. usermod –g dba jsmith
• C. useradd –g dba jsmith
• D. groupmod dba –u jsmith

Answer: AC

Explanation:
According to the reference given below. Both AC is correct.

NEW QUESTION 6
While creating a file on a volume, the Linux administrator receives the following message: No space left on device. Running the df –m command, the administrator notes there is still 50% of usage left. Which of the following is the NEXT step the administrator should take to analyze the issue without losing data?

• A. Run the df –i command and notice the inode exhaustion
• B. Run the df –h command and notice the space exhaustion
• C. Run the df –B command and notice the block size
• D. Run the df –k command and notice the storage exhaustion

Answer: A

NEW QUESTION 7
A company wants to ensure that all newly created files can be modified only by their owners and that all new directory content can be changed only by the creator of the directory. Which of the following commands will help achieve this task?

• A. umask 0022
• B. umask 0012
• C. chmod –R 0644 /
• D. chmod –R 0755 /

Answer: A

NEW QUESTION 8
A Linux systems administrator needs to copy the contents of a directory named “working” on the local working system to a folder /var/www/html on a server named “corporate-web”.
Which of the following commands will allow the administrator to copy all the contents to the web server?

• A. scp –r working/* webuser@corporate-web:/var/www/html
• B. tar working/* webuser@corporate-web:/var/www/html
• C. cp –r working/* webuser@corporate-web:/var/www/html
• D. mv working webuser@corporate-web:/var/www/html

Answer: A

NEW QUESTION 9
Which of the following configuration management tools is considered agentless?

• A. Ouppet
• B. Salt
• C. Ansible
• D. Chef

Answer: C

NEW QUESTION 10
An administrator is troubleshooting an application that has failed to start after the server was rebooted. Noticing the data volume is not mounted, the administrator attempts to mount it and receives this error:

Upon checking the logical volume status, the administrator receives this information:

Which of the following can be said about the data logical volume, and how can this problem be resolved?

• A. The logical volume is not activ
• B. The administrator should make it active with lvchange -ay /dev/ datavg/datalv and then mount it.
• C. The logical volume file system has become corrupte
• D. The administrator should repair it with xfs_repair/dev/datavg/datalv and then mount it.
• E. The logical volume is OK but the /dev special files are missin
• F. The administrator should recreate them by running /dev/MAKEDEV.
• G. The file system is read-onl
• H. The administrator should remount it as read-write with the command mount - o remount.rw /data.

Answer: A

NEW QUESTION 11
A configuration management tool running every minute is enforcing the service HTTPd to be started. To perform maintenance, which of the following series of commands can be used to prevent the service from being started?

• A. systemctl stop httpd && systemctl mask httpd
• B. systemctl disable httpd && systemctl mask httpd
• C. systemctl stop httpd && systemctl hide httpd
• D. systemctl disable httpd && systemctl hide httpd

Answer: A

NEW QUESTION 12
A Linux administrator retrieved a repository of files from a Git server using git clone. The administrator wants to see if a configuration file was added to the repository. Which of the following Git arguments should be used to see the recent modifications?

• A. fetch
• B. log
• C. init
• D. pull

Answer: D

NEW QUESTION 13
Which of the following would be the BEST solution for a systems administrator to access the graphical user environment of a Linux machine remotely?

• A. VNC
• B. KDE
• C. X11
• D. RPC

Answer: A

NEW QUESTION 14
A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file.
Which of the following should the administrator use to reduce the output of memory messages?

• A. free : swapoff / swapfile ; swapon -a
• B. mkswap /swapfile; swapon –a
• C. fallocate –l 2G /swapfile && swapon –a
• D. echo “1” > /proc/meninfo ; swapon / swapfile

Answer: A

NEW QUESTION 15
A new corporate policy states that Bluetooth should be disabled on all company laptops. Which of the following commands would disable the use of Bluetooth?

• A. echo “blacklist bluetooth” > /etc/modprobe.d/blacklist-bluetooth
• B. echo “kill bluetooth” > /etc/modprobe.d/kill-bluetooth
• C. echo “modprobe bluetooth” > /etc/modprobe.d/modprbe-bluetooth
• D. echo “rmod bluetooth” > /etc/modprobe.d/rmmod-bluetooth

Answer: C

NEW QUESTION 16
An administrator needs to deploy 100 identical CentOS workstations via PXE boot. Which of the following should the administrator use to minimize the amount of interaction with the consoles needed?

• A. Kickstart script
• B. Ghost image on a distribution server
• C. Hard disk duplicator
• D. Hard disk duplicator
• E. Ubiquity script

Answer: A

NEW QUESTION 17
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