You are the network administrator for your company. The company has a main office and a branch office. All client computers run Windows XP Professional. Computers in the main office receive their TCP/IP configuration from DHCP. TCP/IP settings are manually configured on computers in the branch office. The network is configured as shown in the exhibit.
Marc is a user who works in the main office. He uses a Windows XP Professional portable computer named Portable1. When he uses Portable1 in the main office, he is able to access resources that are located in both offices. Marc reports that when he visits the branch office and uses Portable1, he is not able to access any network resources that are located in either office. All other users in the branch office are able to access all network resources that are located in both offices.
You need to ensure that Marc is able to use Portable1 to access all network resources when he is in either the main office or the branch office. You want to ensure that this goal is accomplished with the minimum amount of administrative effort, with no future administrative action required.
What should you do?
A.
Enable Automatic Private IP Addressing (APIPA) on Portable1.
B.
On Portable1, manually set an alternate TCP/IP configuration for the branch office subnet.
C.
Configure the VPN2 server as a DHCP relay agent.
D.
On Portable1, specify the address of the VPN2 server as an additional gateway address.
Explanation:
Windows XP uses either Automatic Private IP Addressing (APIPA) or the alternate configuration to automate Internet Protocol (IP) configuration of network connections. By default, the computer first attempts to contact a DHCP server on the network and dynamically obtain configuration for each installed network connection, as follows:
1. If a DHCP server is reached and leased configuration is successful, TCP/IP configuration is completed.
2. If a DHCP server is not reached after approximately 60 seconds or leased configuration fails, the computer uses the setting on the Alternate Configuration tab to determine whether to use APIPA for automatic TCP/IP configuration or to configure TCP/IP with the alternate configuration.Incorrect Answers
A: APIPA is only used for IP self-configuration. It would not enable the computer to communicate with the rest of the network-
C: Even if Portable1 would receive IP configuration from the DHCP server at the main office it would not be able to communicate with the branch offices computers: it would be configured for the main office.
D: Only setting an alternative default gateway would not help. The portable cannot communicate with branch office computers.