A system and method for computer-based testing includes a test driver that controls delivery of a computer-based test to one or more test candidates and that controls caching of test components during delivery of the test. The system includes various monitoring components, including monitoring of candidate progress, candidate performance, network bandwidth, network latency and server response, during delivery of the test and adjusting the source of the test components or the volume of the test components being cached for delivery of the test. Based upon this monitoring of the system, for example, if network communication failure is detected, the test candidate is able to continue computer-based testing while connectivity is being reestablished.
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