Dhcp Service

Which port does the DHCP client use in this protocol?

• 69

• 68

• 67

• A dynamic port

Which process does Windows O.S. launch when the client cannot find a DHCP server?

• Avahi

• Bonjour

• Apipa

• None

What type of message does the server send with an available IP address and options?

• DHCPDISCOVER

• DHCPREQUEST

• DHCPOFFER

• DHCPACK

Which of the allocation methods has a non-infinite lease time?

• Automatic

• Manual

• Dynamic

What type of message does the client send giving up the use of the network address and canceling the remaining time on the lease?

• DHCPREQUEST

• DHCPRELEASE

• DHCPDECLINE

• DHCPNAK

What type of message does the relay agent relay to the DHCP server?

• Broadcast

• Unicast

• Multicast

• All of them

Which protocol provides a method for two DHCP servers to communicate with each other?

What is the most important vulnerability of the DHCP protocol?

• Man in the middle

• DHCP spoofing

• Dos

What is the main configuration file on a DHCP server in Ubuntu?

• /etc/dhcp/dhcpd.conf

• /etc/isc-dhcp-server/dhcpd.conf

• /etc/default/isc-dhcp-server

• /etc/dhcpd.conf

In which file does the DHCP server store the DHCP client lease database?

• /var/lib/dhcp/dhcpd.leases

• /etc/dhcp/dhcpd.leases

• /etc/default/dhcpd.leases