Chapter 8

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When planning a hybrid DHCP infrastructure, what kind of network traffic should administrators want to eliminate?

WAN

For DHCP address allocation, by how much is network traffic reduced related to periodic lease renewal messages when switching from dynamic allocation to automatic allocation?

100 % because dynamic address allocation requires periodic lease renewal message where as auto does not.

How far into the lease period does a DHCP client begin requesting renewal of the IP address assuming the default lease time is used?

50% or 4 days into lease

What is the default lease period for DHCP dynamic address allocation?

8 days

What DHCP infrastructure model relies heavily on relay agents instead of DHCP servers?

Centralized

What service does the Dynamic Host Configuration Protocol provide?

Configures the IP address and TCP/IP setting on network computers

To make use of Pre-boot Execution Environment (PXE) and Windows Deployment Services (WDS), what special configuration do you need on the server and client?

DHCP server on the network must have a custom PXEClient option configured with the location of the wds server on the network.

What is the first packet sent to a DHCP server when a computer boots up?

DHCPDiscover

How do DHCP servers respond to a DHCPDISCOVER message?

DHCPOffer

What DHCP infrastructure model relies on having a DHCP Server on every subnet?

Distributed

What kinds of servers should NOT be DHCP clients?

Domain Controllers, Internet web servers and DHCP servers

DHCP standards define multiple methods to allocate IP addresses. What are they?

Dynamic automatic and manual

What DHCP infrastructure model suggests scattering DHCP servers on subnets throughout the enterprise, but substituting DHCP relay agents for DHCP servers on some of your subnets?

Hybrid

How are DHCP settings labeled in a Windows computer's network interface?

Obtain an IP address automatically

During DHCP lease negotiation, what happens if the client requests an IP address from the server but the server has already assigned the offered IP address?

The server responds with a DHCPNAK message to the client


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