RedHat Red Hat Certified Engineer - RHCE - RHCE Exam Practice Test
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Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
Correct Answer:
UsingthebrowseropentheURLinthequestiondownloadkernelfiletorootorhomedirectory.uname-r//checkthecurrentkernelversionrpm-ivhkernel-*.rpmvi/boot/grub.conf//checkSomequestionsare:Installandupgradethekernelasrequired.Toensurethatgrub2isthedefaultitemforstartup.Yumrepo:http://content.example.com/rhel7.0/x86-64/errataORuname-r//checkkernelYum-config-manager--add-repo="http://content.example.com/rhel7.0/x86-64/errata"YumcleanallYumlistkernel//installdirectlyYum-yinstallkernel//stuckwithitdonotpipe!Pleasedonotpipe!Defaultenablenewkernelgrub2-editenvlist//checkModifygrub2-set-default"kernelfullname"Grub2-mkconfig-o/boot/grub2/grub.cfg//Refresh
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Configure /var/tmp/fstab Permission.
Copy the file /etc/fstab to /var/tmp/fstab. Configure var/tmp/fstab permissions as the following:
Owner of the file /var/tmp/fstab is Root, belongs to group root
File /var/tmp/fstab cannot be executed by any user
User natasha can read and write /var/tmp/fstab
User harry cannot read and write /var/tmp/fstab
All other users (present and future) can read var/tmp/fstab.
Configure /var/tmp/fstab Permission.
Copy the file /etc/fstab to /var/tmp/fstab. Configure var/tmp/fstab permissions as the following:
Owner of the file /var/tmp/fstab is Root, belongs to group root
File /var/tmp/fstab cannot be executed by any user
User natasha can read and write /var/tmp/fstab
User harry cannot read and write /var/tmp/fstab
All other users (present and future) can read var/tmp/fstab.
Correct Answer:
cp/etc/fstab/var/tmp/
/var/tmp/fstabviewtheownersetfacl-mu:natasha:rw-/var/tmp/fstabsetfacl-mu:haryy:---/var/tmp/fstabUsegetfacl/var/tmp/fstabtoviewpermissions
/var/tmp/fstabviewtheownersetfacl-mu:natasha:rw-/var/tmp/fstabsetfacl-mu:haryy:---/var/tmp/fstabUsegetfacl/var/tmp/fstabtoviewpermissions
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Configure the permissions of /var/tmp/fstab
Copy the file /etc/fstab to /var/tmp/fstab. Configure the permissions of /var/tmp/fstab so that:
the file /var/tmp/fstab is owned by the root user.
the file /var/tmp/fstab belongs to the group root.
the file /var/tmp/fstab should not be executable by anyone.
the user natasha is able to read and write /var/tmp/fstab.
the user harry can neither write nor read /var/tmp/fstab.
all other users (current or future) have the ability to read /var/tmp/fstab.
Configure the permissions of /var/tmp/fstab
Copy the file /etc/fstab to /var/tmp/fstab. Configure the permissions of /var/tmp/fstab so that:
the file /var/tmp/fstab is owned by the root user.
the file /var/tmp/fstab belongs to the group root.
the file /var/tmp/fstab should not be executable by anyone.
the user natasha is able to read and write /var/tmp/fstab.
the user harry can neither write nor read /var/tmp/fstab.
all other users (current or future) have the ability to read /var/tmp/fstab.
Correct Answer:
cp-a/etc/fstab/var/tmp
cd/var/tmp
ls-l
getfacl/var/tmp/fstab
chmodugo-x/var/tmp/fstab[Noneedtodothistherewon'tbeexecutepermissionforthefilebydefault]
#setfacl-mu:natasha:rw/var/tmp/fstab
#setfacl-mu:harry:0/var/tmp/fstab(zero)[Readpermissionwillbethereforalltheusersbydefault.Checkitusingls-l/var/tmp/fstab]Verifyby[ls-la/var/tmp/fstab]
cd/var/tmp
ls-l
getfacl/var/tmp/fstab
chmodugo-x/var/tmp/fstab[Noneedtodothistherewon'tbeexecutepermissionforthefilebydefault]
#setfacl-mu:natasha:rw/var/tmp/fstab
#setfacl-mu:harry:0/var/tmp/fstab(zero)[Readpermissionwillbethereforalltheusersbydefault.Checkitusingls-l/var/tmp/fstab]Verifyby[ls-la/var/tmp/fstab]
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Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users:
harry, Natasha is the admin group.
The user: tom's login shell should be non-interactive.
Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users:
harry, Natasha is the admin group.
The user: tom's login shell should be non-interactive.
Correct Answer:
#useradd-Gadminharry
#useradd-Gadminnatasha
#useradd-s/sbin/nologintom
#idharry;idNatasha(Showadditionalgroup)
#cat/etc/passwd(Showtheloginshell)OR
#system-config-users
#useradd-Gadminnatasha
#useradd-s/sbin/nologintom
#idharry;idNatasha(Showadditionalgroup)
#cat/etc/passwd(Showtheloginshell)OR
#system-config-users
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One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing any data. As well as size should be increased online.
One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing any data. As well as size should be increased online.
Correct Answer:
TheLVMsystemorganizesharddisksintoLogicalVolume(LV)groups.Essentiallyphysicalharddiskpartitions(orpossiblyRAIDarrays)aresetupinabunchofequalsizedchunksknownasPhysicalExtents(PE).AsthereareseveralotherconceptsassociatedwiththeLVMsystemlet'sstartwithsomebasicdefinitions:PhysicalVolume(PV)isthestandardpartitionthatyouaddtotheLVMmix.Normallyaphysicalvolumeisastandardprimaryorlogicalpartition.ItcanalsobeaRAIDarray.PhysicalExtent(PE)isachunkofdiskspace.EveryPVisdividedintoanumberofequalsizedPEs.EveryPEinaLVgroupisthesamesize.DifferentLVgroupscanhavedifferentsizedPEs.LogicalExtent(LE)isalsoachunkofdiskspace.EveryLEismappedtoaspecificPE.LogicalVolume(LV)iscomposedofagroupofLEs.Youcanmountafilesystemsuchas/homeand/varonanLV.VolumeGroup(VG)iscomposedofagroupofLVs.ItistheorganizationalgroupforLVM.Mostofthecommandsthatyou'lluseapplytoaspecificVG.
VerifythesizeofLogicalVolume:lvdisplay/dev/vg0/lv1
VerifytheSizeonmounteddirectory:df-hordf-hmounteddirectoryname
Use:lvextend-L+400M/dev/vg0/lv1
ext2online-d/dev/vg0/lv1tobringextendedsizeonline.
AgainVerifyusinglvdisplayanddf-hcommand.
VerifythesizeofLogicalVolume:lvdisplay/dev/vg0/lv1
VerifytheSizeonmounteddirectory:df-hordf-hmounteddirectoryname
Use:lvextend-L+400M/dev/vg0/lv1
ext2online-d/dev/vg0/lv1tobringextendedsizeonline.
AgainVerifyusinglvdisplayanddf-hcommand.
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Notes:
NFS : NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM : http://instructor.example.com/pub/rhel6/dvd
ldap : http : //instructor.example.com/pub/EXAMPLE-CA-CERT
Install dialog package.
Notes:
NFS : NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM : http://instructor.example.com/pub/rhel6/dvd
ldap : http : //instructor.example.com/pub/EXAMPLE-CA-CERT
Install dialog package.
Correct Answer:
yum install dialog
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One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh.
One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh.
Correct Answer:
rpm-ivhftp://server1/example.com/pub/updates/zsh-*or
Logintoftpserver:ftpftp://server1.example.comusinganonymoususer.
Changethedirectory:cdpubandcdupdates
Downloadthepackage:mgetzsh-*
Quitfromtheftpprompt:bye
Installthepackage
rpm-ivhzsh-*
Verifyeitherpackageisinstalledornot:rpm-qzsh
Logintoftpserver:ftpftp://server1.example.comusinganonymoususer.
Changethedirectory:cdpubandcdupdates
Downloadthepackage:mgetzsh-*
Quitfromtheftpprompt:bye
Installthepackage
rpm-ivhzsh-*
Verifyeitherpackageisinstalledornot:rpm-qzsh
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Create a new logical volume according to the following requirements:
The logical volume is named database and belongs to the datastore volume group and has a size of 50 extents.
Logical volumes in the datastore volume group should have an extent size of 16 MB.
Format the new logical volume with a ext3 filesystem.
The logical volume should be automatically mounted under /mnt/database at system boot time.
Create a new logical volume according to the following requirements:
The logical volume is named database and belongs to the datastore volume group and has a size of 50 extents.
Logical volumes in the datastore volume group should have an extent size of 16 MB.
Format the new logical volume with a ext3 filesystem.
The logical volume should be automatically mounted under /mnt/database at system boot time.
Correct Answer:
fdisk-cu/dev/vdapartx-a/dev/vdapvcreate/dev/vdaxvgcreatedatastore/dev/vdax-s16Mlvcreate-l50-ndatabasedatastoremkfs.ext3/dev/datastore/databasemkdir/mnt/databasemount/dev/datastore/database/mnt/database/df-Thvi/etc/fstab/dev/datastore/database/mnt/database/ext3defaults00mount-a
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Set cronjob for user natasha to do /bin/echo hiya at 14:23.
Set cronjob for user natasha to do /bin/echo hiya at 14:23.
Correct Answer:
#crontab-e-unatasha2314***/bin/echohiyawq!