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RHCSA Exam Questions with Correct Answers

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RHCSA Exam Questions with Correct
Answers

What command is used to create an RPM package? - Answer-rpmbuild

What are the five required directories when building RPMS? - Answer-The five
directories are BUILD, RPMS, SOURCES, SPECS, and SRPMS.

If a package is built on an RHEL6 system and deployed to a custom RHEL5 repository,
are RHEL5 systems able to use it? - Answer-No. Red Hat Enterprise Linux 6 uses a
different key to sign its packages.

What command (and options) can be used to create a user named JSmith with the
description "Jr Admin"? - Answer-useradd -c "Jr Admin" JSmith

What is the format of the /etc/shadow file? - Answer-The format of the /etc/shadow file is
<username>:<encrypted password>:<last passwd
change>:<min>:<max>:<warn>:<inactive>:<expires>:<not used>.

What command would you use to create a group? How about to add the user JSmith to
the group? - Answer-Use the groupadd command to create a group. You can then add
user JSmith with the following: usermod -G <group name> JSmith

How do you run a command with elevated privileges? - Answer-You can use the sudo
command to run a command with elevated privileges provided you have the rights in the
/etc/sudoers file.

Is it possible to share files among groups? What permissions would you set on the
directory to accomplish file sharing if possible? - Answer-Yes. You can use the setgid
flag to create the appropriate permissions (chmod 2770).

If you want a specific action to take place when user01 logs in to the system, which file
would you edit? - Answer-You add your action to the end of the /home/user01/.bashrc
file.

You can add files to a user's home directory during creation. True or False? - Answer-
True. Place all files you want added to a user's home directory in the /etc/skel directory.

By default, what is the path to a user's home directory? - Answer-A user's home
directory is created under the /home directory.

,What is the benefit to using centralized authentication? - Answer-By using centralized
authentication, you don't need to re-create or maintain multiple accounts across every
system in your organization.

What commands can you use to add a client machine to an LDAP server? - Answer-
You can use the authconfig-tui command or the authconfig command.

Kickstart can be accomplished only by using a PXE server. True or False? - Answer-
False. A PXE server eases the automation process but isn't required for kickstart
installations to work.

What port on the firewall needs to be open for the TFTP server to work? - Answer-The
TFTP server uses UDP port 69.

What three protocols can you use to perform network installations? - Answer-Network
installations can be performed using the HTTP, FTP, and NFS protocols.

Can you create a RAID or LVM partition using kickstart? - Answer-Yes. Kickstart
supports both basic and advanced partitioning (RAID/LVM).

It is possible to run scripts before a kickstart installation. True or False? - Answer-True.
This is done by defining a %pre section although it is rarely used.

What is the name of the section used to run scripts after a kickstart installation? -
Answer-By defining a %post section, you can run scripts after a kickstart installation is
complete.

What three components are needed to fully automate a kickstart installation? - Answer-
By combining a TFTP server, PXE boot, and DHCP server, you can fully automate the
kickstart installation process.

command is used to show or temporarily modify devices, routing, policy routing, and
tunnels. - Answer-/sbin/ip

show eth0 addre - Answer-ip addr show eth0

show eth0 addr rx tx - Answer-ip -s link show eth0

show routing table - Answer-ip route

show ipv6 routing table - Answer-Ip -6 route

Thexxx command displays or temporarily modifies the system's fully-qualified
hostname. - Answer-hostname

, what is checked first by stub resolver - Answer-cat /etc/hosts

what file controls this: If an entry is not found in that file the stub resolver looks for the
information from a DNS nameserver. - Answer-cat /etc/resolv.conf

the xxx command can be used to test hostname resolution. - Answer-getent hosts
hostname

To change a NetworkManager-managed eth0 interface from using DHCP to using a
static IP address: - Answer-IPv4 Settings tab

... - Answer-On the Method drop-down menu, change Automatic (DHCP) to Manual

what are the editing interface config files? - Answer-/etc/sysconfig/network-scripts/ifcfg-
<name>, where <name> refers to the name of the device that the configuration file
controls

T/F If NetworkManager is running, any changes made to the ifcfg-* files take affect
immediately. - Answer-TRUE

where are networkmanager dns servers? - Answer-/etc/resolv.conf

where is static config? - Answer-/etc/sysconfig/network-scripts/route-<name>.

how to set network setting manually? - Answer-NM_CONTROLLED=no to the ifcfg-*

s used to specify the fully-qualified hostname and may specify a static default route if
DHCP is not in use: - Answer-/etc/sysconfig/network

specifies the IP addresses of DNS servers and the search domain. - Answer-
/etc/resolv.conf

how to bring network interface down? - Answer-ifdown eth0

how to bring network interface up? - Answer-ifup eth0

when chg sys config, what 3 things to remember? - Answer-1. modify config 2. restart a
service 3. verify the change

What command would you use to view your current IP Address and Subnet Mask? -
Answer-ip a

In which configuration file do you set a systems hostname? - Answer-
/etc/sysconfig/network

where are network scripts? - Answer-in /etc/sysconfig/network-scripts

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