101-400 Online Practice Questions and Answers

SIMULATION

Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

SIMULATION

Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.)

SIMULATION

Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)

SIMULATION

Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)

What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

A. Entries for all possible devices get created on boot even if those devices are not connected.

B. Additional rules for udev can be created by adding them to /etc/udev/rules.d/.

C. When using udev, it is not possible to create block or character devices in /dev/ using mknod.

D. The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.

E. The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct answers.)

A. Timestamps

B. MD5 checksums

C. Inodes

D. File sizes

E. GnuPG signatures

Which of the following commands can be used to create a USB storage media from a disk image?

A. gdisk

B. dd

C. cc

D. fdisk

E. mount

Which of the following commands kills the process with the PID 123 but allows the process to "clean up" before exiting?

A. kill -PIPE 123

B. kill -KILL 123

C. kill -STOP 123

D. kill -TERM 123

Which of the following commands is used to change options and positional parameters for a running Bash?

A. history

B. set

C. bashconf

D. setsh

E. envsetup

Which of the following commands will reduce all consecutive spaces down to a single space?

A. tr '\s' ' ' < a.txt > b.txt

B. tr -c ' ' < a.txt > b.txt

C. tr -d ' ' < a.txt > b.txt

D. tr -r ' ' '\n' < a.txt > b.txt

E. tr -s ' ' < a.txt > b.txt