LPIC-1 Exam 101

During a system boot cycle, what program is executed after the BIOS completes its tasks?

• The bootloader

• The inetd program

• The init program

• The kernel

Answer explanation

During a system boot cycle, after the BIOS completes its tasks, the program that is executed is called the bootloader. The bootloader is responsible for loading the operating system into memory and starting its execution. It is the first program that runs after the BIOS and plays a crucial role in the boot process. The bootloader locates the operating system files, initializes the system, and transfers control to the kernel. Therefore, the correct choice is 'The bootloader'.

You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in. Which command would disconnect the users and allow you to safely execute maintenance tasks?

• telinit 1

• shutdown -r now

• killall -9 inetd

• /bin/netstop --maint

• /etc/rc.d/init.d/network stop

Answer explanation

To safely execute maintenance tasks on a disk partition while users are logged in, you can use the 'telinit 1' command. This command will disconnect the users and allow you to perform the necessary maintenance. It is important to highlight that 'telinit 1' is the correct choice for this scenario. Remember, this explanation should not exceed 75 words and should not mention the option number or use the term 'query'.

Which of the following kernel parameters instructs the kernel to suppress most boot messages?

• silent

• verbose=0

• nomesg

• quiet

Answer explanation

The kernel parameter 'quiet' instructs the kernel to suppress most boot messages. It ensures that only essential messages are displayed during the boot process. This option is useful when you want a quieter boot experience without unnecessary messages. The other options, such as 'silent', 'verbose=0', and 'nomesg', do not provide the same level of suppression as 'quiet'. Therefore, 'quiet' is the correct choice to suppress most boot messages.

The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh. What is the usual way to pass this change to the kernel from your boot loader?

• Start in runlevel 1

• Pass init=/bin/sh on the kernel parameter line

• Pass /bin/sh on the kernel parameter line

• Pass start=/bin/sh on the kernel parameter line

Answer explanation

To bypass the usual /sbin/init start up and run /bin/sh, you need to pass 'init=/bin/sh' on the kernel parameter line. This option instructs the kernel to start the system with the specified shell instead of the default init process. By doing so, you can directly access the shell prompt and troubleshoot the system. Remember, passing 'init=/bin/sh' is the correct choice to make this change from your boot loader.

The message "Hard Disk Error" is displayed on the screen during Stage 1 of the GRUB boot process. What does this indicate?

• The kernel was unable to execute /bin/init

• The next Stage cannot be read from the hard disk because GRUB was unable to determine the size and geometry of the disk

• One or more of the filesystems on the hard disk has errors and a filesystem check should be run

• The BIOS was unable to read the necessary data from the Master Boot Record to begin the boot process

Answer explanation

The message 'Hard Disk Error' is displayed on the screen during Stage 1 of the GRUB boot process. This indicates that the next Stage cannot be read from the hard disk because GRUB was unable to determine the size and geometry of the disk. To resolve this issue, the disk's size and geometry need to be determined correctly by GRUB. Running a filesystem check is not necessary in this case, as the error is related to GRUB's inability to read the next Stage from the disk.

Which of the following commands lists the dependencies of a given dpkg package?

• apt-cache depends-on package

• apt-cache dependencies package

• apt-cache depends package

• apt-cache requires package

Answer explanation

To list the dependencies of a dpkg package, you can use the 'apt-cache depends package' command. This command will display a list of packages that the given package depends on. It is important to note that the correct choice is 'apt-cache depends package'.

Which of the following is correct when talking about mount points?

• Every existing directory can be used as a mount point

• Only empty directories can be used as a mount point

• Directories need to have the SetUID flag set to be used as a mount point

• Files within a directory are deleted when the directory is used as a mount point

Answer explanation

When talking about mount points, every existing directory can be used as a mount point. This means that any directory on a file system can be designated as a mount point, allowing other file systems to be attached to it. It is not necessary for the directory to be empty or have the SetUID flag set. Additionally, using a directory as a mount point does not result in the deletion of files within that directory. Therefore, the correct choice is that every existing directory can be used as a mount point.

Which file should be edited to select the network locations from which Debian installation package files are loaded?

• /etc/dpkg/dpkg.cfg

• /etc/apt/apt.conf

• /etc/apt/apt.conf.d

• /etc/apt/sources.list

• /etc/dpkg/dselect.cfg

Answer explanation

To select the network locations for Debian installation package files, you need to edit the '/etc/apt/sources.list' file. This file contains the list of repositories from which the package files are loaded. Editing this file allows you to add or remove repositories to customize the package sources. Make sure to save the changes after editing the file. Remember, the correct choice is '/etc/apt/sources.list'.

When removing a package, which of the following dpkg options will completely remove the files including configuration files?

• --clean

• --delete

• --purge

• --remove

Answer explanation

When removing a package, the option --purge is used to completely remove the files, including configuration files. This option ensures that all traces of the package are removed from the system. It is important to use --purge when you want to completely uninstall a package and remove any associated files. The other options, --clean, --delete, and --remove, do not remove the configuration files and may leave behind remnants of the package on the system.

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

• To create RAID 9 arrays

• To dynamically change the size of logical volumes

• To encrypt logical volumes

• To create snapshots

• To dynamically create or delete logical volumes

Answer explanation

The Logical Volume Manager (LVM) can be used for several purposes. Firstly, it allows for the dynamic resizing of logical volumes, enabling easy adjustment of storage sizes. Additionally, LVM supports the creation of snapshots, which are useful for data backups and system recovery. Lastly, LVM provides the ability to create and delete logical volumes on the fly, offering flexibility in managing storage resources. However, LVM does not support RAID 9 arrays or encryption of logical volumes. Overall, LVM is a powerful tool for managing storage in a flexible and efficient manner.