MegaOilCorp Wide Area Network : MegaOilCorp $($see Figure below$)$ is a global multibillion$-$dollar petrochemical organization that has more than $90,000$ people and machines at about $80$ sites around the world. The business has its global headquarters in Houston, TX$.$ There are $5$ major sites or hubs that link to the HQ and to which the smaller $94$ branch offices link. The major sites or hubs represent Asia$-$Pacific, Australasia, USA$-$Canada, South America, and Europe. The small sites link to the $5$ hubs via $64$ Kbit links; the hubs connect to the HQ via T$2,$ T$1,256$ Kbit, and $128$ Kbit links. Some of the hubs are also interconnected.

The management structure is geographic, with each geographical unit running itself as an independent business as part of the global whole. The top level of the management structure is at HQ$,$ which sits above the $5$ hubs. Even though Houston could be considered within the USA$-$Canada area, the organization is not structured that way. In fact, Houston oversees the hubs in terms of selecting the administrators and how the network is to be structured.

Corporate policy dictates that branches that have more than $500$ people have their own administrator, backup support, and helpdesk staff locally. Branches with fewer than $500$ people have to be managed by the administrators of the hub to which they connect.

Other considerations include the following:

$$ Due to special company policies, public$-$key encryption and different language settings are used in each of the hubs $($and their branches$).$ So$,$ Europe and its branches have different settings from those in Australasia and its branches.

$$ Japan has a database system running on Windows NT $4\mathrm{.}0$ that must stay in its own domain.

$$ MegaOilCorp recently acquired OttawaOilCorp, a Canadian company that has a strong brand name that MegaOilCorp would like to maintain. OttawaOilCorp is solely based in a new branch in Canada.

$$ The links between the eight South American branches and the hub are very unreliable.

$$ The branch in France needs to maintain a number of Windows NT BDCs and member servers running legacy applications and services that will not run under Windows $2000.$ This requirement may exist for a few years.

$$ The Asia$-$Pacific $128$ Kbit link to Europe is severely congested at all times.

$$ Current U$.$S$.$ laws explicitly state that information in a U$.$S$.$ directory can be published anywhere except in countries that are subject to American export restrictions $($currently including but not necessarily limited to Cuba, the Federal Republic of Yugoslavia $($Serbia and Montenegro$),$ Iran, Iraq, Libya, North Korea, and Syria$).$ Since Active Directory is a directory that has the United States as its origin, it cannot be exported to those countries.

$1.$ How many domains, child domains, trees, and forests would you recommend? Defend your answer

$2.$ Assuming that a single domain will be needed, propose a name for the domain and the tree structure. Explain your choice.

$3.$ Design the workstation and server naming scheme to ensure consistency across the domain.

$4.$ Design the hierarchy of Organizational Units.

a$.$ Design and draw the OUs structure with OUs sub$-$OUs and groups. Explain$/$describe your design.

b$.$ Is there a need to delegate administration to any OU that you created? If yes, clarify$/$elaborate$.$

$5.$ Design the users and groups

a$.$ Identify and list all universal groups, global groups, and local groups the company would need