Davonte Brown ITT Technical Institute

3825 West Cheyenne Avenue, Suite 600North Las Vegas, Nevada 89032

NT1330 Client-Server Networking II

Week 2, Unit 2 – Configuring and Maintaining the DHCP and DNS Server Roles

Exercise

For this Exercise

Please evaluate the information provided and after reading in the lessons for this week, answer the scenario deliverables by circling the correct response to the scenario. This exercise is due at the beginning of the next class meeting.

Case Scenarios

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.

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.

Case Scenario 4-1: Enabling Network Users to Connect to Internet Host Names

You are the network administrator for Contoso, Ltd. The Contoso network consists of a single domain, contoso.com, which is protected from the Internet by a firewall. The firewall runs on a computer named NS1 that is directly connected to the Internet. NS1 also runs the DNS Server service, and its firewall allows DNS traffic to pass between the Internet and the DNS Server service on NS1 but not between the Internet and the internal network. The DNS Server service on NS1 is configured to use round robin. Behind the firewall, two computers are running Windows Server 2003—NS2 and NS3, which host a primary and secondary DNS server, respectively, for the contoso.com zone.

Users on the company network report that, although they use host names to connect to computers on the local private network, they cannot use host names to connect to Internet destinations, such as www.microsoft.com.

NT1330 Client-Server Networking II Page 1 of 2 Week 2, 70-642 Lessons 3 and 4 Steve Todd

Davonte Brown Which of the following actions requires the least amount of administrative effort to enable network users to connect to Internet host names?

a. Disable recursion on NS2 and NS3.

b. Enable netmask ordering on NS1.

c. Configure NS2 and NS3 to use NS1 as a forwarder.

d. Disable round robin on NS1.

Case Scenario 4-2: Implementing DNS Updates

You are the system administrator for Contoso, Ltd. The company has grown rapidly over the past year, and currently Contoso is using only a single DNS zone. Recently, the Marketing department has made several requests for DNS changes that were delayed. Users would like the ability to make their own DNS updates.

What should you do to try to address this problem?

a. Create a secondary server in the Marketing department so that users can manage their own zone.

b. Delegate the marketing domain to a DNS server in the Marketing department.

c. Place a domain controller running DNS in the Marketing department so that people in the department can make changes.

d. Upgrade the network infrastructure to improve network performance.

NT1330 Client-Server Networking II Page 2 of 2 Week 2, 70-642 Lessons 3 and 4 Steve Todd