CCNA2 v7 Module 7 - DHCPv4
A DHCP-enabled client PC has just booted. During which two steps will the client PC use broadcast messages when communicating with a DHCP server? (Two answers)
-DHCPDISCOVER -DHCPREQUEST
Which two DHCPv4 messages are sent by the server in the lease obtaining process? (Two answers)
-DHCPOFFER -DHCPACK
Which two DHCPv4 messages are used in the lease renewal process? (Two answers)
-DHCPREQUEST -DHCPACK
Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?
Dynamic allocation
What is the most likely scenario in which the WAN interface of a router would be configured as a DHCP client to be assigned a dynamic IP address from an ISP?
It is a SOHO or home broadband router.
When a client is requesting an initial address lease from a DHCP server, why is the DHCPREQUEST message sent as a broadcast?
The client may have requested offers from multiple servers, and the broadcast serves to implicitly decline those other offers.
What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?
To notify other DHCP servers on the subnet that the IP address was leased.
Under which two circumstances would a router usually be configured as a DHCPv4 client? (Two answers)
-The router is intended to be used as a SOHO gateway. -This is an ISP requirement.
What is the destination IP address when an IPv4 host sends a DHCPDISCOVER message?
255.255.255.255
Which destination IPv4 address does a DHCPv4 client use to send the initial DHCP Discover packet when the client is looking for a DHCP server?
255.255.255.255
How is a DHCPDISCOVER transmitted on a network to reach a DHCP server?
A DHCPDISCOVER message is sent with the broadcast IP address as the destination address.
Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?
Client hardware address
An administrator issues the commands: Router(config)# interface g0/1 Router(config-if)# ip address dhcp What is the administrator trying to achieve?
Configuring the router to obtain IP parameters from a DHCPv4 server.
Which DHCP IPv4 message contains the following information? Destination address: 255.255.255.255 Client IPv4 address: 0.0.0.0 Default gateway address: 0.0.0.0 Subnet mask: 0.0.0.0
DHCPDISCOVER
Which message is sent by a DHCPv4 client to initiate the lease obtaining process?
DHCPDISCOVER
What kind of message is sent by a DHCPv4 client requesting an IP address?
DHCPDISCOVER broadcast message
As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?
DHCPREQUEST
If more than one DHCP server is available on the local network, in which order will DHCP messages be sent between a host and a DHCP server?
Discover, Offer, Request, Acknowledge
