Question # 1 Which of the following specifications is used to perform disk encryption in a Linux system? A. LUKSB. TLSC. SSLD. NFS
Click for Answer
A. LUKS
Answer Description Explanation:
LUKS stands for Linux Unified Key Setup, which is a specification for disk encryption on Linux systems. LUKS allows users to encrypt partitions or entire disks using a passphrase or a key file. LUKS also supports multiple keys and key slots, which can be used to unlock the encrypted data. LUKS is compatible with various tools and utilities, such as cryptsetup, dm-crypt, and LVM. References: [How to Encrypt Partitions with LUKS on Linux]
Question # 2 A systems administrator is encountering performance issues. The administrator runs 3 commands with the following output
The Linux server has the following system properties
A. The system is under CPU pressure and will require additional vCPUs
B. The system has been running for over a year and requires a reboot.
C. Too many users are currently logged in to the system
D. The system requires more memory
Click for Answer
B. The system has been running for over a year and requires a reboot.
Question # 3 A security analyst is monitoring the network to identify latency or slowdowns during a vulnerability scan. Which of the following functions will best achieve this? A. function x() { info=$(dig $(dig -x $1 | grep ptr | tail -n 1 | awk -F ".in-addr" '{print
$1}').origin.asn.cymru.com TXT +short); echo "$1 | $info" }
B. function x() { info=$(ping -c 1 $1 | awk -F "/" 'END {print $5}'); echo "$1 | $info" }C. function x() { info=$(nc -m 40 $1 | awk 'END {print $1}'); echo "$1 | $info" }D. function x() { info=$(geoiplookup $1); echo "$1 | $info" }
Click for Answer
B. function x() { info=$(ping -c 1 $1 | awk -F "/" 'END {print $5}'); echo "$1 | $info" }
Answer Description Explanation:
The ping command is used to measure network latency. The function provided uses ping -c 1 to ping the target once and extracts the average round-trip time using awk. This is a simple and effective way to monitor network latency during a scan or other network activity.
Question # 4 A Linux administrator booted up the server and was presented with a non-GUI terminal. The administrator ran the command systemctl isolate graphical.target and rebooted the system by running systemctl reboot, which fixed the issue. However, the next day the administrator was presented again with a non-GUI terminal. Which of the following is the issue?
A. The administrator did not reboot the server properly.
B. The administrator did not set the default target to basic.target.
C. The administrator did not set the default target to graphical.target.
D. The administrator did not shut down the server properly.
Click for Answer
C. The administrator did not set the default target to graphical.target.
Question # 5 A developer needs to launch an Nginx image container, name it Web001, and ex-pose port 8080 externally while mapping to port 80 inside the container. Which of the following commands will accomplish this task? A. docker exec —it -p 8080: 80 ——name Web001 nginxB. docker load -it -p 8080:80 ——name Web001 nginxC. docker run -it -P 8080:80 ——name Web001 nginxD. docker pull -it -p 8080:80 —name Web00l nginx
Click for Answer
C. docker run -it -P 8080:80 ——name Web001 nginx
Answer Description Explanation:
To launch an Nginx image container, name it Web001, and expose port 8080 externally while mapping to port 80 inside the container, the administrator can use the
command docker run -it -p 8080:80 --name Web001 nginx ©. This will create and start a new container from the Nginx image, assign it a name of Web001, and map port 8080 on the host to port 80 on the container. The other commands are not valid or do not meet the requirements.
Question # 6 Employees in the finance department are having trouble accessing the file /opt/work/file. All IT employees can read and write the file. Systems administrator reviews the following output:
Which of the following commands would permanently fix the access issue while limiting access to IT and finance department employees?
A. chattr +i file
B. chown it:finance file
C. chmod 666 file
D. setfacl -m g:finance:rw file
Click for Answer
D. setfacl -m g:finance:rw file
Question # 7 Which of the following paths stores the configuration files in a Linux filesystem? A. /procB. /homeC. /rootD. /etc
Click for Answer
D. /etcQuestion # 8 A Linux administrator wants to find out whether files from the wget package have been altered since they were installed. Which of the following commands will provide the correct information?
A. rpm -i wget
B. rpm -qf wget
C. rpm -F wget
D. rpm -V wget
Click for Answer
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