|Exam Name||:||Enterprise Linux System Administration|
|Questions and Answers||:||113 Q & A|
|Updated On||:||December 11, 2017|
|PDF Download Mirror||:||Pass4sure 1Z0-403 Dump|
|Get Full Version||:||Pass4sure 1Z0-403 Full Version|
It does not provide any protection to remote X connections.
It allows entire desktops to be displayed and controlled remotely.
It is used to connect to a remote Linux machine only from a Linux machine.
You have a file1 file and the type of the file is shown below: [root@server1 ~]# file file1
disk1: ISO 9660 CD-ROM file system data 'Enterprise disc 1 2006-10-26 ' (bootable) What would you do to access the contents of the /root/file1 file?
The mount command with the loop option would mount the /root/file1 disk image file on a directory.
The mount command with the bind option would mount the /root/file1 disk image file on a directory.
The mount command with the rbind option would mount the /root/file1 disk image file on a directory.
The mount command with ro,user,noauto,and unhide options would mount the /root/file1 disk image file on a directory.
The first 446 bytes of the Master Boot Record (MBR) on station1 are damaged and you are not able to boot the system. You have the /dev/sda3 disk partition as the /boot file system. You are in the rescue environment. You tried the grub-install command but you are not able to fix this error using this command. The grub-install command takes a long time to execute and then displays the following message:
"Probing devices to guess BIOS drives, This may take a long time."
What would you do to recover 446 bytes, without using the grub-install command?
Enter the grub command to get the grub prompt, and then issue the commands grub> root (hd0,3)
grub> setup (hd0)
Enter the grub command to get the grub prompt, and then issue the commands grub> root (hd0,0)
grub> setup (hd0)
Enter the grub command to get the grub prompt, and then issue the commands
grub> root (hd0,1) grub> setup (hd0)
Enter the grub command to get the grub prompt, and then issue the commands grub> root (hd0,2)
grub> setup (hd0)
You want to install the ieee80211 module on your Linux system. While building the module, you receive the following error:
Make : *** [ieee 80211-1.2.17/ieee80211_module.o] Error 1 Make : *** [_module_/ieee80211-1.2.17] Error 2
Make : Leaving directory ?usr/src/kernels/2.6.9-184.108.40.206.1.EL-i686 Make: *** [modules] Error 2
What do you infer from this error?
The ieee80211 module conflicts with the current kernel version.
The dependency modules for ieee80211 are not installed on the system.
The ieee80211 module given is not supported by the machine architecture.
The kernel source package, which must be installed to compile external device drivers, is not installed on the system.
You have Oracle Enterprise Linux installed on a Small Computer System Interface (SCSI) drive and have the Grand Unified Bootloader (GRUB) configured as shown below:
Kernel /vmlinuz-2.6.9-220.127.116.11.1.Elsmp ro root=LABEL=/ rhgb quiet initrd /initrd-2.6.9- 18.104.22.168.1.Elsmp.img
The ID of the SCSI drive has been changed.
What is the impact of this on the system operation?
The system still boots because the system uses root=LABEL=/ syntax.
The system would fail to boot because the change in the ID of the SCSI drive would affect the kernel path.
The system would fail to boot because the change in the ID of the SCSI drive would affect the initrd path.
The system would fail to boot because the change in the ID of the SCSI drive would corrupt the /etc/inittab file making it unbootable.
The contents of /etc/pam.d/su file on a system are shown below. [root@server1 ~]# cat /etc/pam.d/su
auth sufficient /lib/security/$ISA/pam_rootok.so
auth sufficient /lib/security/$ISA pam_wheel.so trust use_uid
#auth required /lib/security/$ISA pam_wheel.so use_uid
auth required /lib/security/$ISA/pam_stack.so service=system-auth account required /lib/security/$ISA/pam_stack.so service=system-auth password required /lib/security/$ISA/pam_stack.so service=system-auth session required /lib/security/$ISA/pam_selinux.so close
session required /lib/security/$ISA/pam_stack.so service=system-auth session required /lib/security/$ISA/pam_selinux.so open
session optional /lib/security/$ISA/pam_xauth.so Which statement is true?
All normal users would be prohibited from using the su command to switch to root's account.
All members of the wheel group would be prohibited from using the su command to switch to root'saccount.
All members of the wheel group would be able to use the su command to switch to root's account only by supplying the root password.
All members of the wheel group would be able to use the su command to switch to root's account without even supplying the root password.
You want to override the default runlevel 5 at the next system reboot and want the system to boot to multiuser mode but with a text-mode login. You want the change to be temporary. What would you do to achieve this task?
Pass runlevel 3 as the kernel parameter to the GRUB boot menu.
Edit the /etc/inittab file and replace the default runlevel with 3.
Execute the init 3 command to bring the system to the required runlevel.
Pass runlevel 3 as the parameter to initrd at the Grand Unified Bootloader (GRUB) boot menu.
Which three statements are true about the format of the /etc/sudoers file? (Choose three.)
The /etc/suoders file cannot be used across networks.
The NOPASSWD keyword provides access without prompting for the password.
A single line in the /etc/sudoers file can have a maximum of five usernames.
Groups are the same as user groups and are differentiated from regular users by a % at the beginning.
sudo assumes that the /etc/sudoers file would be used across the network and, therefore, offers the option to specify the names of the servers that would use it.
During the installation of Oracle Enterprise Linux, you want to customize the packages to be installed. You select one of the package groups that has both base and optional packages. Which statement about the packages is true?
Only the optional packages would be installed.
All the base packages and the optional packages would be installed.
The selection of a base package does not depend on an optional package.
Only the base packages and the auto selected optional packages would be installed.
You have issued the commands as shown below: [root@server1]# parted /dev/sdb
(parted) mkpartfs p ext2 1 250
What is the purpose of issuing these commands?
To format the first partition on /dev/sdb with an ext2 filesystem
To create a primary partition /dev/sdb1 with a journaling filesystem
To create a partition using cylinders from 250 with an ext2 filesystem
To create a primary partition /dev/sdb1 using cylinders 1 through 250 with an ext2 filesystem
Note the contents of the /etc/nologin file and the /etc/pam.d/login file on server1: [root@server1 ~]# cat /etc/nologin
[root@server1 ~]# cat /etc/pam.d/login
auth required pam_securetty.so
auth required pam_stack.so service=system-auth auth sufficient pam_nologin.so
account sufficient pam_stack.so service=system-auth password required pam_stack.so service=system-auth
Which statement is true about users?
Only the root user can login to the system.
Only users bob and smith would not be able to login to the system.
All users, including the root user, would be permitted to login to the system.
All users, including the root user, would be restricted from login to the system.
You have the redundant array of independent disks (RAID) device /dev/md0 mounted on /data to store some critical system files. While watching the /var/log/messages log file, you found the following kernel log message:
Apr 25 22:09:59 server1 kernel: raid1: Disk failure on sdb5, disabling device. Apr 25 22:09:59 server1 kernel: Operation continuing on 1 devices
Apr 25 22:09:59 server1 kernel: md: md0: sync done.
You opened the /proc/mdstat file to check the RAID statistics as shown below: [root@server1 ~]# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb6 sdb5(F)
297088 blocks [2/1] [_U] unused devices: <none> [root@server1 ~]#
Which two statements are true? (Choose two.)
The RAID array is destroyed because one disk partition has failed and the entire data on the disk would be lost.
The RAID array could be restored back to the high availability state using a new RAID disk partition replacing the faulty one.
The RAID array would not synchronize with the newly created files and directories after the failure, even if the array is re-created.
The faulty RAID device, /dev/sdb5, could be replaced with a new RAID disk partition and RAID array would be regenerated with the new disk partition after synchronizing with the
/dev/sdb6 RAID disk.
You have logged into station1 as the normal user smith. To know the current date and time, you issue the date command. Which two statements about the date command are true? (Choose two.)
By default, it can be used by smith to format the output.
It depends on the system clock to retrieve the information.
By default, it can be used by smith to adjust the system clock.
It depends only on the hardware clock to retrieve the information.
As a Linux administrator, you want to send daily notification e-mails to all users on station1 who exceed their disk quotas. Which three steps would enable you to accomplish this task? (Choose three.)
The crond service must be running.
The root user should have a crontab set to report quota limits.
The customized notification should be inserted in the /etc/quotatab file.
The customized notification should be inserted in the /etc/warnquota.conf file.
The /usr/sbin/warnquota should be soft linked to/etc/cron.daily directory.
Which statements are true about the shared directories defined in the /etc/exports file? (Choose all that apply.)
One line per exported file system
No wildcard character * in machine names
Shares default to "sync" and "no subtree check"
Shares default to "read only" and "root squashed"
Requires the RPC service (the portmap daemon) to be running
Can limit connections by IP address or Fully Qualified Domain Name (FQDN)
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installing Oracle Linux
pc Hardware & Linux
publish-install system Configuration
Boot method & SysV Init
person/group Administration and NFS
LVM & Raid
task Automation & method Accounting
The X window equipment
Linux Kernel Compilation
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