92 % of case study answer efficiency of some extent to indicate 1GbE link, while GPON in GTC Encapsulation Method GEM mode can obtain 95 percent efficiency of its usable bandwidth. The downstream EPON data rate can be doubled to 2. 5Gbps corresponding to GPON. EPON simplifies case study solution networks and needs no complex and dear ATM and Sonet elements. Thus it helps lower case study solution costs to subscribers. Now case study answer cost of EPON equipment is about 10 % of case study solution costs of GPON accessories. This essay will view Global Payments and their hacking problem from 1/3 party accounting system perspective. The agency’s protection assessment may be analyzed and different application issues might be discussed. Finally case study answer essay will conclude by providing Aircraft Flight DisturbanceInternal Memo:Lessons Learned From September 26th O’Hare International Airport IncidentSenior Managementecommendations to Avert Widespread Flight DisturbancesOn September 26th, 2014, both O’Hare and Midway airports skilled a day long disruption of operations that led to over 2,000 flights being cancelled and case study solution entire nation affected by case study solution disruption of operations. An worker with psychological problems intent on killing himself started a fire in case study answer basement telecommunications room of case study solution Aurora, Illinois control center, then tried to slit his throat. After posting his suicide note on Facebook, spouse and children called 911 and both his life and case study answer control center were saved. The fire broken case study solution most vital areas of case study answer IT infrastructure for air traffic control for both case study answer O’Hare and Midway airports, forcing air traffic control locations in adjoining states to take on one of case study answer busiest areas of case study solution country for air travel.