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Q51. Which four statements are true concerning the various stages of GRUB bootloader in Oracle Linux?
A. GRUB stage1 must always load stage1_5.
B. GRUB stage1_5 is used to process the /boot/grub/grub.conf file.
C. GRUB stage1_5 loads GRUB stage2.
D. GRUB stage1 may load GRUB stage2 directly.
E. GRUB stage1 provides support for several different filesystems, enabling stage1 to load stage1_5.
F. GRUB stage1_5 provides support for several different filesystems, enabling stage1_5 to load stage2.
G. GRUB stage2 is used to process the /boot/grub/grub.conf file.
Explanation: CD: Stage 1 code is stored in the MBR. This code contains a block list that
points to the next stage of GRUB, which is either stage1_5 or stage 2, depending on the
file system type.
E(not F): Stage1_5 code allows GRUB to interpret different types of file system
G (not B): Stage 2 code reads /boot/grub/grub.conf to determine how to load the kernel.
Not A:. For some file system types such as ext4, GRUB does not need to load stage1_5.
Q52. You must remove a Physical Volume (PV) from a Volume Group (VG) containing one Logical Volume (LV) without compromising data availability.
What must you do before using the vgreduce command, to remove the PV?
A. Move allocated physical Extents (PE) from /dev/sdd to other physical volumes using the pvmove command.
B. Remove the /dev/sdd PV using the pvremove command.
C. Resize the /dev/sdd PV to zero using the pvresize command.
D. Move allocated physical Extents (PE) from /dev/sdd to other physical volumes by using the 1vvonvert - - replace command.
Explanation: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Logical_Volume_Manager_Administration/VG_remo ve_PV.html
Q53. Examine the output shown:
[root@FAROUT fs] # rpm –qa | grep preinstall Oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64
[root@FAROUT fs] # rpm –q1 oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 /etc/rc.d/init.d/oracle-rdbms-server-11gR2-preinstall-firstboot /etc/sysconfig/Oracle-rdbms-server-11gR2-preinstall-verify
Which three statements are true about oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 rpm?
A. It is a new name for oracle-validated package from Oracle Linux 5 that sets parameters to the same values.
B. It creates the oracle user if not already created, which owns the Grid Infrastructure software should that get installed.
C. It creates the grid user if not already created which owns the grid infrastructure software should that get installed.
D. It modifies kernel parameters in /etc/sysctl.conf.
E. It runs at the first boot after installing the packages to set a parameter indicating that is has run once.
F. It modifies parameters in the /etc/sysconfig/network-scripts directly.
G. It creates the osoper group, if not already created.
Q54. This MDADM output:
Which two aspects can be determined from this output?
A. A device failed and has been removed from this RAID set.
B. It is no longer possible to write to this RAID set.
C. Read and write performance is no longer optimal on this RAID set.
D. This RAID set was built without a spare device.
E. Only Write performance is no longer optimal on this RAID set.
Q55. Which three statements are true about the Oracle Linux Logical Volume Manager (LVM)?
A. LVM supports simple, striped, mirrored, and RAID-5 Logical Volumes (LVs).
B. A Physical Volume (PV) can be created on a disk or a disk partition.
C. A Physical Volume (PV) can only be created on a disk partition.
D. A Physical Volume (PV) can be resized.
E. A Volume Group (VB) can be split into multiple Volume Groups.
F. An LVM snapshot is read-only.
Leading 1Z0-100 free exam:
Q56. Match the following symbolic notations of the file permissions with their numeric values:
- - - S - - - - - - a) 5000
- - - - - - S - - - b) 4100
- - - - - - - - - - tc) 7101
- - - S - - - - - Td) 1001
- - - S - - S - - te) 7040
S - - S r - - - Tf) 2010
A. 1-d, 2-f, 3-b, 4-e, 5-c, 6-a
B. 1-b, 2-f, 3-d, 4-a, 5-c, 6-e
C. 1-f, 2-a, 3-c, 4-b, 5-e, 6-d
D. 1-b, 2-d, 3-f, 4-a, 5-e, 6-c
Q57. Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?
Explanation: ypbind finds the server for NIS domains and maintains the NIS binding information. The client (normaly the NIS routines in the standard C library) could get the information over RPC from ypbind or read the binding files.
Q58. Examine this sequence of commands and output: [root@FARAWAY ~] # cat /etc/oracle-release
Oracle Linux Server release 6.1
[root@FARAWAY ~]# rpm –qa oraclelinux* Oraclelinux-release-noted-6Server-5.x86_64 Oraclelinux-release-6Server-1.0.2.x86_64
[root@FARAWAY ~] # rpm –qa rehat-release* [root@FARAWAY ~] #
[root@FARAWAY ~] # rpm –qf /etc/oracle-release Oraclelinux-release-6Server-1.0.2.x86_64
[root@FARAWAY ~] rpm –qf /etc/redhat-release Oraclelinux-release-6Server-1.0.2.x86_64
Which two can be determined from this output?
A. The system has Oracle Linux 6 installed and the Red Hat compatible kernel is running.
B. The system has Oracle Linux 6 installed and the Oracle Unbreakable Enterprise kernel Is running.
C. It is not possible to determine which kernel is running.
D. This system has been booted at least once, with the Red Hat-compatible kernel and once with the Unbreakable Enterprise kernel.
E. The oracle-release package contains both Oracle and Red Hat release metadata.
Q59. Which two steps should be performed to permit using SSH, SCP, or SFTP commands by the ORACLE account on the host FAROUT to the oracle account on the host WAYOUT without supplying a password?
A. The oracle account user on host FAROUT must issue an ssh-keygen command to generate public and private key files in the ~ oracle/.ssh directory FAROUT.
B. The oracle account user on the host WAYOUT must issue an ssh-keygen command to generate public and private key files in the ~/oracle.ssh directory on WAYOUT.
C. The Oracle account user on host FAROUT must add the contents of ~/oracle/.ssh/id_dsa.pub or ~/oracle/.ssh/is_rsa.pub file to the ~/oracle/.ssh/authorized_keys file on host WAYOUT.
D. The Oracle account user on host WAYOUT must add the contents of ~/oracle/.ddh/id_dsa or ~/oracle/.ssh/id_rsa.pub file to the ~/oracle/.ssh/authorized_keys file on host FAROUT.
E. The oracle account user on host WAYOUT must set the permissions on the ~/oracle/.ssh/authorized_keys file to 644.
F. The Oracle account user on host FAROUT must set the permissions in ~/oracle/.ssh/authorized_keys file 644.
Q60. Which four statements are about the use of these files and directories by UPSTART?
A. /etc/rc.d/rc is executed each time the /sbin/init command us used, to change services appropriately for the target run level.
B. /etc/rc.d/rc.local is executed at boot time, before the run level processing takes place.
C. /etc/rc.d/rc is executed at boot time, to start the appropriate services for the run level defined in /etc/initab.
D. /etc/rc.d/rc.sysinit is executed once at boot time, regardless of which run level is set.
E. /etc/rc.d/rc.sysint is executed each time the /sbin/init command is used to change the run level.
F. /etc/rc.d/rc3.d contains links to scripts in /etc/init.d.
G. /etc/rc.d/rc is executed after /etc/rc.d/rc.local.