Question 1

What are the four steps (in order) of the DHCP lease process?

Accepted Answer

Discover, Offer, Request, Acknowledge (DORA). The client broadcasts a Discover, the server responds with an Offer, the client sends a Request, and the server finalizes with an Acknowledge.

Question 2

What IOS command configures a router to forward DHCP broadcasts from clients to a remote DHCP server at 10.1.1.1?

Accepted Answer

ip helper-address 10.1.1.1, configured on the client-facing interface. This converts the client's broadcast into a directed unicast toward the DHCP server.

Question 3

What IOS command excludes the address range 192.168.1.1 through 192.168.1.10 from a DHCP pool?

Accepted Answer

ip dhcp excluded-address 192.168.1.1 192.168.1.10, entered in global configuration mode. Addresses in this range will never be assigned to DHCP clients.

Question 4

Which DHCP message type does a client send to formally accept an IP address offer when multiple DHCP servers may have responded?

Accepted Answer

The client sends a DHCP Request broadcast. Broadcasting the Request ensures all servers see it, so non-selected servers can reclaim their offered addresses.

Question 5

What does a DHCP client do when it receives a DHCPNAK from a server?

Accepted Answer

The client restarts the DHCP lease process from the beginning by sending a new DHCP Discover. A NAK means the server rejected or revoked the client's address.

CCNA Network Services

Also Included in the Study Bundle

Practice Tests

Study Guides

Match Game

Try These Cards

Want to keep studying?

Related Study Decks

CCNA Cisco Networking Certification — Complete Bundle

CCNA IP Addressing & Subnetting

CCNA Network Fundamentals

CCNA Network Security

CCNA Routing Protocols

CCNA Switching & VLANs

Unlock the Full CCNA Cisco Networking Certification Study Bundle