A is corrent because a reciprocal agreement involves agreement between two or more organizations to help each other in the event of disaster to one’s processing.
B is incorrect because a hot site ordinarily relies upon a commercial disaster recovery service that allows a business to continue in the event of computer disaster.
C is incorrect because a cold site ordinarily involves processing at another site.
D is incorrect because a checkpoint system is more directly related to copying the database at certain points for backup support.
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