S & R CH. 7-9 Test Part 1

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Which protocol automates assignment of IP addresses on a network, and which port number does it use?

-DHCP -67

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?

-DHCPDISCOVER -DHCPREQUEST

Refer to the exhibit. PC1 is configured to obtain a dynamic IP address from the DHCP server. PC1 has been shut down for two weeks. When PC1 boots and tries to request an available IP address, which destination IP address will PC1 place in the IP header?

255.255.255.255

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 does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?

DHCPREQUEST

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 received offers from multiple servers, and the broadcast serves to implicitly decline those other offers

Which kind of message is sent by a DHCP client when its IP address lease has expired?​

a DHCPREQUEST unicast message​

Place the options in the following order:

a client initiating a message to find a DHCP server - DHCPDISCOVER a DHCP server responding to the initial request by a client - DHCPOFFER the client accepting the IP address provided by the DHCP server - DHCPREQUEST the DHCP server confirming that the lease has been accepted - DHCPACK

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 command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?

ip address dhcp


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