Red Hat Certified Systems Administrator (EX200) - RHEL7
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What command would you execute to view the default systemd target / runlevel? - Answer- systemctl get-default
What command would you execute to set the default systemd target to the functional equivalent of runlevel 3? - Answer- systemctl set-default multi-user
What command would you execute ...
what command would you execute to view the default
what command would you execute to set the default
what command would you execute to set the default
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RED HAT CERTIFIED SYSTEMS ADMINISTRATOR
(EX200) - RHEL7
What command would you execute to view the default systemd target / runlevel? -
Answer- systemctl get-default
What command would you execute to set the default systemd target to the functional
equivalent of runlevel 3? - Answer- systemctl set-default multi-user
What command would you execute to set the default systemd target to the functional
equivalent of runlevel 5? - Answer- systemctl set-default graphical.target
When using the "systemctl" utility, what is the default systemd type if omitted? - Answer-
service
What actions would you perform in order to reset the root password on a RHEL7
system? - Answer- - Append "rd.break" to the respective kernel entry in GRUB2
- Boot system
- mount -o remount,rw /sysroot
- chroot /sysroot
- passwd
- touch /.autorelabel
- reboot
How much memory does RHEL7 support on a single host? - Answer- 3TB
What log file records the configuration entered during install? - Answer- /root/anaconda-
ks.cfg
What file lists the packages being installed during installation? - Answer- /root/install.log
What log file stores general messages generated during the installation? - Answer-
/root/install.log.syslog
What log file captures messages related to network interfaces? - Answer-
/var/log/anaconda.ifcfg.log
What log file contains informational, debug, and other general messages? - Answer-
/var/log/anaconda.log
What log file records messages related to the kernel? - Answer- /var/log/anaconda.log
What log file stores X window information? - Answer- /var/log/anaconda.xlog
,What log file records messages generated by the yum and rpm commands during
software installation? - Answer- /var/log/anaconda.packaging.log
What log file captures messages generated by external programs? - Answer-
/var/log/anaconda.program.log
What log file records messages generated by storage modules? - Answer-
/var/log/anaconda.storage.log
What log file contains messages related to yum packages? - Answer-
/var/log/anaconda.yum.log
Where are log files generated during installation, and where are they moved to when
installation is complete? - Answer- /tmp; /var/log
What command would you execute to install graphical support? - Answer- yum group
install -y 'GNOME' 'X Window System'
What command would you execute to display the terminal name we are currently
logged on to? - Answer- tty
What is the name of the standard virtualization toolset available with RHEL7? - Answer-
libvirt
What command would you execute to verify that your system supports virtualization in
general? - Answer- lscpu | grep Virtualization
What command would you execute to verify that your system with an Intel processor will
support virtualization? - Answer- grep vmx /proc/cpuinfo
What command would you execute to verify that your system with an Intel processor will
support virtualization? - Answer- grep svm /proc/cpuinfo
What command would you execute to install all of the pertinent KVM virtualization
packages? - Answer- yum group install "virtualization tools" "virtualization hypervisor"
"virtualization client" "virtualization platform" -y
What is the name of the first virtual switch that is created by default when libvirtd is
started? - Answer- virbr0
What IP address will automatically be assigned to the default switch, virbr0? - Answer-
192.168.122.1
What are two types of virtual network switch configuations that are supported by libvirt?
- Answer- isolated and routed
,What are isolated switches? - Answer- Isolated switches allow guests to communicate
with one another and with the host, but not to external networks, and uses NAT and
forwarding
What are routed switches? - Answer- Routed switches connect directly to the physical
host's network, allow guests to communicate directly to external hosts.
What is a storage pool? - Answer- A storage pool is a storage area that is used for the
provision of storage to virtual machines
What command would you execute to create virtual machines and install RHEL in
them? - Answer- virt-install
What command would you execute to launch the graphical utility for management of
virtual machines? - Answer- virt-manager
What is the default location for storing virtual machine images? - Answer-
/var/lib/libvirt/images
What command would you execute to display a list of present virtual networks? -
Answer- virsh net-list
What would you enter into an XML file to address the following objectives when creating
a new virtual network with the virsh utility?
1) Create a persistent NAT virtual network rhcsa7_xml?
2) Assign it subnet 192.168.3.0/24
3) Assign a gateway of 192.168.3.1
4) Assign a DHCP range of 192.168.3.2 to 192.168.3.254
5) Assign a port range of 1024 to 65535 - Answer- <network>
<name>rhcsa7_xml</name>
<bridge name='virbr2' stp='on' delay='0' />
<forward mode='nat'>
<nat>
<port start='1024' end='65535'/>
</nat>
</forward>
<ip address='192.168.3.1' netmask='255.255.255.0'>
<dhcp>
<range start='192.168.3.2' end='192.168.3.254' />
</dhcp>
</ip>
</network>
, What command would you execute to create a new virtual network from a definition
contained within the file /home/stanky/rhcsa7.xml? - Answer- virsh net-define
/home/stanky/rhcsa7.xml
What command would you execute to set automatic start-up of the virtual network
named rhcsa7_xml? - Answer- virsh net-autostart rhcsa7_xml
What command would you execute to start the virtual network named rhcsa7_xml? -
Answer- virsh net-start rhcsa7_xml
What command would you execute to display details for the rhcsa7_xml network? -
Answer- virsh net-info rhcsa7_xml
What command would you execute to define a new storage pool as type "dir" with a
source path of "- - - -" and a target path of the /var/lib/libvrirt/rhcsa7_pool directory? -
Answer- virsh pool-define-as rhcsa7_pool dir - - - - /var/lib/libvirt/rhcsa7_pool
What command would you execute to set automatic start-up of the storage pool named
rhcsa7_pool? - Answer- virsh pool-autostart rhcsa7_pool
What command would you execute to start the storage pool named rhcsa7_pool? -
Answer- virsh pool-start rhcsa7_pool
What command would you execute to display all existent storage pools? - Answer- virsh
pool-list
What command would you execute to display details for the rhcsa7_pool storage pool?
- Answer- virsh pool-info rhcsa7_pool
What command would you execute to create a volume named rhcsa7_vol with a size of
25G within a storage pool named rhcsa7_pool? - Answer- virsh vol-create-as
rhcsa7_pool rhcsa7_vol 25G
What command would you execute to install FTP server software? - Answer- yum install
-y vsftpd
What command would you execute to add a permanent rule to the firewall to allow FTP
traffic to pass through? - Answer- firewall-cmd --permanent --add-service=ftp &&
firewall-cmd --reload
What command would you execute to validate the syntax of a Kickstart file located at
/var/kick_me.ks? - Answer- ksvalidator /var/kick_me.ks
What package would you install to provide the ksvalidator utility? - Answer- pykickstart
wget placeholder - Answer-
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