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RHCSA – Questions With Expert Verified Solutions
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RHCSA – Questions With Expert Verified Solutions
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RHCSA – Questions With Expert Verified SolutionsCommand is used to show or temporarily modify devices, routing, policy
routing, and tunnels. Right Ans - /sbin/ip
Show eth0 addre Right Ans - ip addr show eth0
Show eth0 addr rx tx Right Ans - ip -s link show eth0
Show routing table Right Ans - ip route
Show ipv6 routing table Right Ans - Ip -6 route
Thexxx command displays or temporarily modifies the system's fully-qualified
hostname. Right Ans - hostname
What is checked first by stub resolver Right Ans - 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. Right Ans - cat
/etc/resolv.conf
The xxx command can be used to test hostname resolution. Right Ans -
getent hosts hostname
To change a NetworkManager-managed eth0 interface from using DHCP to
using a static IP address: Right Ans - IPv4 Settings tab
... Right Ans - On the Method drop-down menu, change Automatic (DHCP)
to Manual
What are the editing interface config files? Right Ans -
/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
effect immediately. Right Ans - TRUE
Where are networkmanager dns servers? Right Ans - /etc/resolv.conf
,Where is static config? Right Ans - /etc/sysconfig/network-scripts/route-
<name>.
how to set network setting manually? Right Ans - 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: Right Ans - /etc/sysconfig/network
specifies the IP addresses of DNS servers and the search domain. Right Ans
- /etc/resolv.conf
how to bring network interface down? Right Ans - ifdown eth0
how to bring network interface up? Right Ans - ifup eth0
when chg sys config, what 3 things to remember? Right Ans - 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? Right Ans - ip a
In which configuration file do you set a systems hostname? Right Ans -
/etc/sysconfig/network
where are network scripts? Right Ans - in /etc/sysconfig/network-scripts
how to find the fqdn? Right Ans - hostname
host name to ip or reverse is in? Right Ans - cat /etc/hosts
what controls query? Right Ans - /etc/resolv.conf
What are the two config files for Postfix called? Right Ans - The two main
config files are master.cf and main.cf.
, Sendmail is the default SMTP service for Red Hat Enterprise Linux 6. True or
False? Right Ans - False. The default SMTP service has been changed to
Postfix in Red Hat Enterprise Linux 6.
What protocols are used with Dovecot? Right Ans - Dovecot supports the
POP3, POP3S, IMAP, and IMAPS protocols.
What command-line program can you use to check your mail? Right Ans -
Typing the mail or mutt command allows you to read mail from the command
line.
What command can you use to create a new SSL certificate? Right Ans - Use
the /usr/share/doc/dovecot-1.0.7/examples/mkcert.sh command after
editing the /etc/pki/dovecot/dovecot-openssl.cnf file.
The virt-install package allows you to manage virtual machines via a GUI
interface. True or False? Right Ans - False. The virt-install package allows
you to manage virtual machines via the command line. The virt-manager
package allows you to manage virtual machines via a GUI interface.
By default, all virtual machines are created with the same amount of RAM.
True or False? Right Ans - False. You must dictate the amount of RAM you
want allocated to your virtual machine when you create it.
What is the virsh command used for? Right Ans - The virsh command is
used to manage virtual guests.
What does virsh reboot Client04 do? Right Ans - This command reboots
virtual guest Client04.
How can you display all virtual guests after they're connected to a hypervisor?
Right Ans - After you connect to a hypervisor, you can use virsh list —all to list
all virtual guests.
Red Hat Enterprise Linux 5 supports LUKS encryption. True or False? Right
Ans - False. Red Hat Enterprise Linux 6 is the only version that officially
supports LUKS encryption.
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