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If the sensitivity is increased on a biometric system, which of the following will be MOST likely affected.
CER will decrease, increasing the effectiveness of access control
Type two errors will increase causing increased usability
CER will increase, increasing the integrity of the system
Type 1 errors will increase causing decreased usability
Remember that type 1 errors reject access to valid subjects and type 2 errors allow access to invalid subjects. It is also important to know that the CER is a chart graphing the two error types as the sensitivity is changed, with the "Crossover Error Rate" being the intersection between the two lines.
If the system's sensitivity is increased, such as in an airport metal detector, the system becomes increasingly selective and has a higher FRR.
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