Case Scenario 3
Evan Jones
NT1330
Case Scenario 3-1: Obtaining an IP Address
Last month, a server was configured for DHCP and was functioning normally. Five days ago, a test server on the same network segment was promoted to be the first domain controller on the network. Today several users on the same subnet as the original DHCP server have complained that they are unable to obtain an IP address using DHCP. What is the most likely reason users are unable to obtain an IP address?
a. The users’ IP address leases have expired.
b. A DHCP relay agent is missing or incorrectly configured.
c. There are duplicate IP addresses on the network.
d. The DHCP server must be authorized and is not.
ANSWER
d. The new DC would require the DHCP server to be authorized. Since the test server had just been promoted, that authorization would not have taken place.
Case Scenario 3-2: Maximizing Lease Availability
You are configuring DHCP scope options for Contoso, Ltd. The company has a limited number of IP addresses available for clients, and it wants to configure DHCP to maximize IP address availability. Choose all of the following actions that will accomplish this objective:
a. Set long lease durations for IP addresses.
b. Set short lease durations for IP addresses.
c. Configure a DHCP option to automatically release an IP address when the computer shuts down.
d. Create DHCP reservations for all portable computers.
ANSWER
B & C B. Setting shorter lease times will ensure that more addresses will remain available. C. Requiring a machine/device to release a reserved IP will ensure that all possible addresses will be available for use.
NT1330
Case Scenario 3-1: Obtaining an IP Address
Last month, a server was configured for DHCP and was functioning normally. Five days ago, a test server on the same network segment was promoted to be the first domain controller on the network. Today several users on the same subnet as the original DHCP server have complained that they are unable to obtain an IP address using DHCP. What is the most likely reason users are unable to obtain an IP address?
a. The users’ IP address leases have expired.
b. A DHCP relay agent is missing or incorrectly configured.
c. There are duplicate IP addresses on the network.
d. The DHCP server must be authorized and is not.
ANSWER
d. The new DC would require the DHCP server to be authorized. Since the test server had just been promoted, that authorization would not have taken place.
Case Scenario 3-2: Maximizing Lease Availability
You are configuring DHCP scope options for Contoso, Ltd. The company has a limited number of IP addresses available for clients, and it wants to configure DHCP to maximize IP address availability. Choose all of the following actions that will accomplish this objective:
a. Set long lease durations for IP addresses.
b. Set short lease durations for IP addresses.
c. Configure a DHCP option to automatically release an IP address when the computer shuts down.
d. Create DHCP reservations for all portable computers.
ANSWER
B & C B. Setting shorter lease times will ensure that more addresses will remain available. C. Requiring a machine/device to release a reserved IP will ensure that all possible addresses will be available for use.