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Otherwise, it is the responsibility of the Level 3 Application to get the Checksum Value.
_DATA_EXCHANGE_
The Compilation Option _DATA_EXCHANGE_ is required whenever a Kernel requires Data exchanges with the Terminal (see Section 5.9.2 of EMVCo Book A v2.10)
The Data Exchange mechanism may be used for:
Checking Exception File
Requesting Missing Data
Processing Data Storage Information
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