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Above is the Global Finance , Inc . ( GFI ) network diagram . GFI has grown rapidly this past year and acquired many network devices as displayed in the diagram . The company invested in the network and designed it to be fault tolerant and resilient from any network failures . However , although the company ’ s financial status has matured and its network has expanded at a rapid pace , its network security has not kept up with the company growth .

GFI ’ s network is fairly stabilized as it has not experienced many outages due to network failures . GFI has hired three ( 3 ) network engineers to keep up with the network growth and the bandwidth demand by the company employees and the clients . However , the company has not hired any security personnel who can take care of the operational security responsibility .

The trusted computing base ( TCB ) internal network in the Global Finance , Inc . Network Diagram hosts the company ’ s mission critical systems without which the company ’ s operations and financial situation would suffer . The Oracle database and email systems are among the most intensively used application servers in the company . GFI cannot afford system outages because its cash flow and financial systems heavily depend on the network stability . GFI has experienced DOS network attacks twice this year and its Oracle database and email servers had been down for a week . The recovery process required GFI to use $ 25,000 to restore its operations back to