Linux Admin Commands Aptitude Questions and Answers

1. startup
2. uptime
3. startuptime
4. time

1. The service command is used to start a service by calling the associated script.
2. The service command is used to stop service by calling the associated script.
3. The service command is used to pause a service by calling the associated script.
4. The service command is used to restart a service by calling the associated script.

Options:

1. A and B
2. A, B, and D
3. B, C, and D
4. A, B, C, and D

1. /etc/services/
2. /etc/scripts/
3. /etc/init.d/
4. /etc/services/scripts/

1. We can get the current system time using uptime command.
2. We can get the number of users logged in, using uptime command.
3. This command also displays CPU load average.
4. This command also displays the duration for which the computer has been running.

Options:

1. A and B
2. B and D
3. A, B, and D
4. A, B, C, and D

1. -p
2. -u
3. -l
4. -k

1. This command is used to display information about processes running in the system.
2. This command displays the memory occupied by a system call.
3. This command displays the process id of the running processes.
4. This command displays the name of the running processes.

Options:

1. A and B
2. A, B, and C
3. A, C, and D
4. A, B, C, and D

1. signal -all
2. kill -p
3. kill -l
4. kill -s

1. SIGINT
2. SIGHUP
3. SIGQUIT
4. SIGKILL

Options:

1. A and B
2. A, B, and C
3. A, C, and D
4. A, B, C, and D

1. killall <process id>
2. kill -9 <process id>
3. kill -p <process id>
4. kill -s <process id>

1. killall <process name>
2. kill -n <process name>
3. kill -p <process name>
4. kill -s <process name>

1. swapmem
2. free
3. sw
4. sp

1. kill
2. killall
3. pkill
4. xkill

Options:

1. A and B
2. A, B, and C
3. A, C, and D
4. A, B, C, and D

1. SIGSTOP
2. SIGSTP
3. SIGPAUSE
4. SIGPS

1. pmap
2. memmap
3. map
4. procmap

1. This command displays the information about the last logged in timing for the user.
2. The last command is used to display the last executed process in the system.
3. This command displays IP address, username, and duration of logging in.
4. The log information is stored in the "/var/log/wtmp" file.

Options:

1. A and B
2. A, B, and C
3. A, C, and D
4. A, B, C, and D

1. Using init 0 command
2. Using init 6 command
3. Using shutdown command
4. Using turnoff command

1. shutdown immediate
2. shutdown now
3. shutdown n
4. shutdown final

1. man
2. info
3. infocmd
4. All the above

Options:

1. A and B
2. A, B, and C
3. A, C, and D
4. A, B, C, and D

1. diskinf
2. diskuse
3. du
4. fileinf

1. crond
2. init
3. bootp
4. none of the above

1. attach
2. access
3. mount
4. umount

1. unmount
2. umount
3. nmount
4. None of the above

1. 0
2. 1
3. 4
4. 6

1. 0
2. 1
3. 4
4. 6

1. file
2. info
3. df
4. ds