IT-341 Module-14 Chapter-7: DHCPv4 (Cisco)

Which message is sent by a DHCPv4 client to initiate the lease obtaining process?

a. DHCPDISCOVER

b. DCHPOFFER

c. DHCPREQUEST

d. DHCPACK

a. DHCPDISCOVER

Which two DHCPv4 messages are sent by the server in the lease obtaining process? (Choose two.)

a. DHCPDISCOVER

b. DCHPOFFER

c. DHCPREQUEST

d. DHCPACK

b. DCHPOFFER

d. DHCPACK

Which two DHCPv4 messages are used in the lease renewal process? (Choose two.)

a. DHCPDISCOVER

b. DCHPOFFER

c. DHCPREQUEST

d. DHCPACK

c. DHCPREQUEST

d. DHCPACK

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? (Choose two.)

a. DHCPDISCOVER

b. DHCPACK

c. DHCPOFFER

d. DHCPREQUEST

e. DHCPNAK

a. DHCPDISCOVER

d. DHCPREQUEST

An administrator issues the commands:

Router(config)# interface g0/1
Router(config-if)# ip address dhcp

What is the administrator trying to achieve?

a. Configuring the router to act as a DHCPv4 server

b. Configuring the router to obtain IP parameters from a DHCPv4 server

c. Configuring the router to act as a relay agent

d. Configuring the router to resolve IP address conflicts

a. Configuring the router to act as a DHCPv4 server

When a client is requesting an initial address lease from a DHCP server, why is the DHCPREQUEST message sent as a broadcast?

a. The client does not yet know the IP address of the DHCP server that sent the offer.

b. The DHCP server may be on a different subnet, so the request must be sent as a broadcast.

c. The client does not have a MAC address assigned yet, so it cannot send a unicast message at Layer 2.

d. The client may have received offers from multiple servers, and the broadcast serves to implicitly decline those other offers.

d. The client may have received offers from multiple servers, and the broadcast serves to implicitly decline those other offers.

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

a. DHCPACK

b. DHCPDISCOVER

c. DHCPOFFER

d. DHCPREQUEST

b. DHCPDISCOVER

What kind of message is sent by a DHCPv4 client requesting an IP address?

a. DHCPDISCOVER broadcast message

b. DHCPDISCOVER unicast message

c. DHCPOFFER unicast message

d. DHCPACK unicast message

a. DHCPDISCOVER broadcast message

As a DHCPv4 client lease is about to expire, what is the message that the client sends the DHCP server?

a. DHCPDISCOVER

b. DHCPOFFER

c. DHCPREQUEST

d. DHCPACK

c. DHCPREQUEST

What is the destination IP address when an IPv4 host sends a DHCPDISCOVER message?

a. 255.255.255.255

b. 224.0.0.1

c. 0.0.0.0

d. 192.168.1.1

a. 255.255.255.255

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?

a. Request, discover, offer, acknowledgment

b. Acknowledgment, request, offer, discover

c. Discover, offer, request, acknowledgment

d. Request, acknowledgment, discover, offer

c. Discover, offer, request, acknowledgment

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?

a. There is a web server for public access on the LAN that is attached to the router.

b. The router is also the gateway for a LAN.

c. It is a SOHO or home broadband router.

d. The router is configured as a DHCP server.

c. It is a SOHO or home broadband router.

Which is a DHCPv4 address allocation method that assigns IPv4 addresses for a limited lease period?

a. Manual allocation

b. Pre-allocation

c. Automatic allocation

d. Dynamic allocation

d. Dynamic allocation

What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?

a. To notify other DHCP servers on the subnet that the IP address was leased

b. To notify other hosts not to request the same IP address

c. For hosts on other subnets to receive the information

d. For routers to fill their routing tables with this new information

a. To notify other DHCP servers on the subnet that the IP address was leased

How is a DHCPDISCOVER transmitted on a network to reach a DHCP server?

a. A DHCPDISCOVER message is sent with the IP address of the DHCP server as the destination address.

b. A DHCPDISCOVER message is sent with a multicast IP address that all DHCP servers listen to as the destination address.

c. A DHCPDISCOVER message is sent with the broadcast IP address as the destination address.

d. A DHCPDISCOVER message is sent with the IP address of the default gateway as the destination address.

c. A DHCPDISCOVER message is sent with the broadcast IP address as the destination address.

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?

a. 127.0.0.1

b. 224.0.0.1

c. 255.255.255.255

d. The IP address of the default gateway

c. 255.255.255.255

Under which two circumstances would a router usually be configured as a DHCPv4 client? (Choose two.)

a. The router is intended to be used as a SOHO gateway.

b. The administrator needs the router to act as a relay agent.

c. The router is meant to provide IP addresses to the hosts.

d. This is an ISP requirement.

e. The router has a fixed IP address.

a. The router is intended to be used as a SOHO gateway.

d. This is an ISP requirement.

Which address does a DHCPv4 server target when sending a DHCPOFFER message to a client that makes an address request?

a. Client IP address

b. Client hardware address

c. Gateway IP address

d. Broadcast MAC address

b. Client hardware address