D281 - Linux Foundations

Question 21: Which command can be used to monitor real-time network connections?

netstat

ifconfig

traceroute

ping

Question 22: How can you view the current working directory in Linux?

pwd

ls

cd

df

Question 23: Which command is used to delete files and directories?

rm

del

erase

rmdir

Question 24: Which command is used to display the manual for a specific command?

man

info

help

readme

Question 25: How do you display the first 10 lines of a file?

head

tail

cat

less

Question 26: Which command is used to change a user's password?

passwd

usermod

chown

sudo passwd

Question 27: What does the ping command do?

Checks network connectivity

Displays IP address information

Lists active network connections

Assigns an IP address to a network interface

Question 28: How can you check the available disk space on a system?

df

du

lsblk

fdisk

Question 29: Which command is used to create a new user in Linux?

useradd

adduser

passwd

newuser

Question 30: How do you reboot a Linux system using the command line?

reboot

restart

shutdown -r now

poweroff

Question 31: Which file contains the group information in Linux?

/etc/group

/etc/passwd

/etc/shadow

/etc/profile

Question 32: How do you add a new group in Linux?

groupadd

useradd

newgroup

addgroup

Question 33: Which command is used to monitor system logs in real-time?

tail -f /var/log/syslog

cat /var/log/syslog

head /var/log/syslog

grep syslog

Question 34: Which command shows the number of files and directories in a directory?

ls | wc -l

ls -l

du -h

df -h

Question 35: How can you remove a directory in Linux?

rmdir

del

rm -d

remove

Question 36: Which command lists all the available commands in Linux?

compgen -c

help

man

alias

Question 37: Which file stores hashed passwords in Linux?

/etc/shadow

/etc/passwd

/etc/group

/etc/hosts

Question 38: What does the hostname command do?

Displays or sets the system's hostname

Lists network interfaces

Assigns an IP address

Displays the system time

Question 39: How do you forcefully log out a user in Linux?

pkill -KILL -u username

killall -u username

logout username

shutdown username

Question 40: Which command checks the status of a service in systemd?

systemctl status service_name

service service_name status

ps -e | grep service_name

status service_name

D281 Linux Foundations - Set 4 - Part 2