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→The easiest way to recover the root password for GNU/LINUX in case we lost it, is
* /etc/grub/grub.conf
* /root/grub.conf
* '''/boot/grubetc/grub.conf'''
* /boot/grub.conf
* '''to produce links: "/etc/rc3.d/S92carpal" and "/etc/rc0.d/K08carpal"'''
=== Different Linux distributions uses different tools to install a package. As follow which Which one of following statements is true?===
* '''Ubuntu uses apt-get, Opensuse uses zypper and Fedora uses yum or pkcon'''
* make oldconfig
* '''make'''
*'''make modules'''
* rpmdev-setuptree
* make modules_install
=== How to create a initial ram disk image?===
* initrd (hd1,0)/initrd-2.6.26.5-45.fc9.i686.img
* A process that prevents multiple occurances from running at one time
=== When Fedora normal startup, What is 's the default run-levelin Fedora ?===
* 1
* 2
* 3
* 4
* '''5'''
* 7
* init 4
* '''init 6'''
*'''telinit 6'''
*'''reboot'''
=== Circle one, which is true for findfs command ? ===
* e2label /dev/bdisk "videogames"
* resize2fs /dev/bdisk videogames
*'''*e2label /dev/bdisk videogames''' === What is the device represented in the file grub.conf as (hd0,0) ?=== * /dev/hda3* /dev/sdc2* /dev/hda2*''' /dev/sda1'''* /dev/sdd2* /dev/sda2* /dev/sdb1 === What is the device represented in the file grub.conf as (hd1,0) ?===* /dev/hda3* /dev/sdd2* /dev/hda2* /dev/sdc2* /dev/sda1* /dev/sda2*''' /dev/sdb1''' === What is the device represented in the file grub.conf as (hd1,1) ?===*''' /dev/sdb2'''* /dev/hda2* /dev/sdd2* /dev/sda1* /dev/sdc2* /dev/sda2* /dev/sdb1 === What is the device represented in the file grub.conf as (hd0,2) ?===* /dev/hda3* /dev/hda2* /dev/sda2*''' /dev/sda3'''* /dev/sdb1* /dev/sdc2* /dev/sdd2 === pvcreate command is used for ? ===* '''Initialize a disk or partition for use by LVM'''* Creating a LVM* Scanning a LVM* none of above === _____ command is used to scan all the disks for volume groups and rebuild caches ===* vgchange* lvcreate* '''vgscan'''* lvm === When is a good time to use the "partprobe" command ? ===* '''After creating, deleting or modifying partitions'''* After reboot the system* Sometimes* In a sunny day === What does the command "partprobe" do ? ===* Query a database* Query the kernel version* '''Look for modifications in the partitions of the system and then if something was modified, load the new informations in to the kernel'''* Look for new partitions === Which command can be used to fill your hard drive with 0s ?===*'''dd if=/dev/zero of=/dev/sda bs=1M'''* ff* e2fs* fdisk === Which linux command can be used to make a image ?'''===*'''dd'''* mkisofs * dd if=/dev/random of=/dev/device* mkimage === What does the command losetup do ?===*'''It associates a file to a device (Ex:losetup /dev/loop0 fakedisk)* nothing* reboot the computer* It erases the setup (lose setup) === The Operating system on our computers, we usually call it Linux. But Linux is actually a name for === * Operating System* '''Kernel '''* boot loader* none of above === The easiest way to recover the root password for GNU/LINUX in case we lost it, is === * open the /etc/passwd file in vi editor & look for root password* boot the computer form CD/DVD in run level 5 and run the passwd command* boot the computer with MS-Linux Xp/Vista Live CD then click Start->Control Panel->Change MSlinux Password option.* '''boot the system in single user mode & change the root password with /usr/bin/passwd command '''
