Exam (elaborations)
RHCSA Exam Questions and Answers
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RHCSA Exam Questions and Answers
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RHCSA Exam Questions and AnswersSet cronjob for user natasha (student) to do /bin/echo hiya at 14:23 - Answer -# crontab
-e -u natasha 23 14 * * * /bin/echo hiya
SELinux must be running in the Enforcing mode - Answer -# cat /etc/selinux/config
# setenforce 1
# vim /etc/selinux/config
## selinux=enforcing
sestatus
1. A YUM repository has been provided at
http://server.domain11.example.com/pub/x86_64/Server. Configure your system to use
this location as a default repository. - Answer -'cd /etc/yum.repo.d/'
'touch exam.repo'
'vim exam.repo'
###
[exam]
name=exam
baseurl=http://...
enable=1
nogpgcheck=0
###
'yum repo list' // (This verifies that it is enabled)
Create the following users, groups, and group memberships:
· A group named adminuser
· A user natasha who belongs to admin user as a secondary group
· A user harry who also belongs to admin user as a secondary group
· A user sarah who does not have access to an interactive shell on the system, and who
is not a member of adminuser, natasha, harry, and sarah should all have the password
of redhat. - Answer -'addgroup adminuser'
'useradd natasha'
'usermod -a -G adminuser natasha'
'useradd harry'
'usermod -a -G adminuser harry'
'useradd -s /sbin/nologin sarah'
'passwd natasha'
'passwd harry'
'passwd sarah'
, Configure the FTP service in your system, allow remote access to anonymous login and
download the program by this service. Service is still running after system rebooting. -
Answer -'yum install vsftpd'
'systemctl start vsftpd'
'systemctl enable vsftpd'
'rpm -qc vsftpd' // list all vsftpd files for .conf file
'vim file.conf'
#set anonymous_enable=YES
'systemctl restart vsftpd'
Configure your web services, download from
http://instructor.example.com/pub/serverX.html , and the services must be still running
after system rebooting - Answer -'cd /var/www/html'
'wget http://instructor.example.com/pub/serverX.html'
'mv server.html index.htlm'
'systemctl restart httpd'
'systemctl status httpd' //verify that the system is enabled
Download the document from ftp://instructor.example.com/pub/testfile, find all lines
containing [abcde] and redirect the /MNT/answer document, then rearrange the order
according to the original content - Answer -'wget
ftp://instructor.example.com/pub/testfile'
'mkdir -p /MNT/answer'
'grep 'abcde' > /MNT/answer'
Update the kernel from ftp://instructor.example.com/pub/updates - Answer -'yum update
kernel -y'
User mary must configure a task
Requirement: The local time at 14:23 every day echo "Hello World.". - Answer -crontab -
e -u mary
###
23 14 * * * echo "Hello World"
There is a local logical volumes in your system, named with common and belong to
VGSRV volume group, mount to the /common directory. The definition of size is 128
MB.Requirement:Extend the logical volume to 190 MB without any loss of data. The
size is allowed between 160-160 MB after extending. - Answer -'lvextend -L 190
/dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common'
There is a local logical volumes in your system, named with shrink and belong to
VGSRV volume group, mount to the /shrink directory. The definition of size is 320
MB.Requirement:Reduce the logical volume to 220 MB without any loss of data. The
size is allowed between 200-260 MB after reducing. - Answer -'lvreduce -resizefs -L
220M /dev/mapper/vgsrv-shrink'
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