Case Study 1

Golden Sun Mining Company

Golden Sun Mining Company operates several mineral mines around the world. It has headquarters in Alberta, Canada, and regional offices in Lima, Peru, and Johannesburg, South Africa. Golden Sun also has six field offices located in these mining areas: two in Canada, two in South Africa, one in Zaire, and one in Chile.

Current LAN/Network Structure

Golden Sun is currently running Windows NT 4 servers in the headquarters and regional offices. Using a single-domain model, a PDC and two BDCs are located in the Alberta office, and the Lima and Johannesburg offices each house a BDC. The Alberta home office has 2,000 employees, whereas Lima and Johannesburg have 250 and 375 employees, respectively. The field offices each have 25 “100 employees . Client computers run a mix of Windows NT Workstation and Windows 98, and a few of the field office computers are running Windows 95.

The headquarters and regional offices use 10Mbps Ethernet, with Category 5 cabling throughout. This network infrastructure is considered adequate for current and future needs.

The field offices are a mixed bag of technologies. Some have only a small peer network, whereas the larger ones have a BDC and a server-based network. In most cases, there is no dedicated person to support the computers in the field offices, and support comes from one of the regional offices or headquarters.

Proposed LAN/Network Structure

Golden Sun wants to upgrade to Windows 2000 throughout the organization. Specifically, it sees the connectivity and security features of Windows 2000 as critical to the company, especially for connecting field offices to the larger offices.

Current WAN Connectivity

The regional offices are connected to headquarters by 512Mbps fractional T1 circuits. The circuits are not generally heavily used.

Field offices are connected using 56K Frame Relay. The links at two of the larger field offices are heavily saturated during business hours.

Proposed WAN Connectivity

No changes are anticipated for the T1 connections between the regional offices and headquarters.

The field offices will be upgraded to 256Kbps VPN connections prior to the Windows 2000 deployment. Golden Sun wants Windows 2000 to provide IPSec over the connections to improve security and safeguard the transmission of sensitive company information.

Directory Design Commentary

CEO : Our company management has always been based here in Alberta. We don't want anyone in the regional offices making changes without our approval, and we need to keep tight control of our resources.

Director of Information Technology : Our field offices require far too much support from the headquarters staff. However, we want to allow them to reset passwords and change certain user fields, so that they do not constantly call us for these trivial issues. We also need to ensure that sensitive mining data transmitted from the field offices is secure.

Director, Human Resources : We need to allow the regional office personnel the ability to add users to the network. We will be installing a new HR application after the Windows 2000 implementation that will use information in the Windows 2000 directory, so this capability is important.

Current Internet Positioning

Golden Sun Mining has a registered Internet name of goldsunmine.ca . It currently runs a small Web site with basic company information and operates an Exchange email server from the Alberta headquarters. DNS services are currently handled by the ISP.

Future Internet Positioning

No changes in Internet strategy are forecasted.

Question 1.1	Which of the following design issues is critical to meeting the business requirements of Golden Sun Mining? [Select two.] a. The 56Kbps connections out to the field offices b. The need to delegate administration c. Use of Group Policy to manage desktops d. Schema-modification policy
Question 1.2	How will the proposed upgrade of WAN links out to the field offices affect the Active Directory design for Golden Sun? a. There will be no effect. b. The site design will be affected. c. The domain design will be affected. d. Fewer cross-link trust relationships will be necessary.
Question 1.3	How many sites should be created? a. 1 b. 3 c. 6 d. 9
Question 1.4	Here are two lists. The first list shows four Golden Sun locations, and the second contains Windows 2000 Server roles. Under each location, place the appropriate server roles for that location. You may use a role more than once. Locations: Alberta corporate headquarters Johannesburg regional office Lima regional office Chile field office Server roles: Domain controller DNS server Schema Operations Master PDC Emulator Global Catalog Server
Question 1.5	Figure 10.1 shows a portion of the proposed Golden Sun Active Directory design. Figure 10.1. The Golden Sun Mining Active Directory design. Drag the delegated tasks listed in the rectangular boxes to the appropriate places in the design. More than one task can be assigned to a container object.
Question 1.6	Which type of Active Directory design is shown in Figure 10.1? a. Geographical b. Organizational c. Functional d. Hybrid (geographical, then organizational)
Question 1.7	External DNS will still be handled by Golden Sun's ISP, whereas internal DNS will use the Windows 2000 DNS service. Which tasks should be performed to ensure that the internal DNS functions properly? [Select two.] a. Manually add the IP address of the Golden Sun Web server. b. Change the character set option to allow UTF-8 encoding. c. Turn on Dynamic Update. d. Change the internal zone to Active Directory integrated.
Question 1.8	Figure 10.2 shows a site link's Properties page. For two sites connected by DEFAULTIPSITELINK, how often will replication occur? a. 5 minutes. b. 100 minutes. c. 180 minutes. d. The replication frequency cannot be determined from this page. Figure 10.2. The Properties page for the DEFAULTIPSITELINK site link.