Chapter 4

Question 1

What command is used to directly examine the Linux kernel’s currently defined hostname?

Answer 1

hostname

Question 2

Which of the following command would set the Linux kernel’s hostname to station1.example.com?

Answer 2

hostname station1.example.com

Question 3

In which of the following files can the Linux kernel’s hostname be defined explicitly, so that the name is set automatically upon bootup?

Answer 3

/etc/sysconfig/network

Question 4

Which file can be edited in order to enable a Red Hat Enterprise Linux machine to act as a router?

Answer 4

/etc/sysctl.conf

Question 5

Within the appropriate file, what is the name of the parameter which must be enabled in order to enable routing?

Answer 5

net.ipv4.ip_forward

Question 6

In what directory can information about a machine’s current DHCP lease be found?

Answer 6

/var/lib/dhclient/

Question 7

Which utility helps an administrator simply configure a network interface from a terminal?

Answer 7

system-config-network-tui

Question 8

Which of the following parameters can not be configured directly with system-config-network-tui?

Answer 8

Default DNS search domain

Question 9

Which sophisticated utility allows an administrator to configure multiple interfaces and DNS using an X graphical environment?

Answer 9

The Network Manager applet

Question 10

Which of the following utilities can be used to configure a network interface to receive its configuration information via DHCP?

Answer 10

system-config-network-tui