It is vital to the organization and the success of the disaster recovery plan that the plan be thoroughly tested on a(n) basis.

Regular Basis.

Explanation:

The plans should be clearly defined and checked regularly according to the set parameters. Also, there needs to evaluate one every week various types of environmental assessment have to be done. As the Disaster Recovery is a set of policies procedures and tools one needs to keep it updated to the current version. As any business needs to operate.

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