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A hardware control that helps to detect errors when data are
communicated from one computer to another is known as a:
A. duplicate check.
B. table lookup.
C. validity check.
D. parity check.
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Answer: D
A parity check will help to detect data errors when data are
read from memory or communicated from one computer to
another. A one-bit digit (either 0 or 1) is added to a data
item to indicate whether the sum of that data item's bit is
odd or even. When the parity bit disagrees with the sum of
the other bits, an error report is generated. Choices A, B
and C are types of data validation and editing controls.
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Which of the following would an IS auditor consider to be the MOST helpful when evaluating the effectiveness and adequacy of a computer preventive maintenance program? A. A system downtime log B. Vendors' reliability figures C. Regularly scheduled maintenance log D. A written preventive maintenance schedule
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Which of the following tests confirm that the new system can operate in its target environment? A. Sociability testing B. Regression testing C. Validation testing D. Black box testing
Which audit technique provides the BEST evidence of the segregation of duties in an IS department? A. Discussion with management B. Review of the organization chart C. Observation and interviews D. Testing of user access rights
Which of the following BEST describes an IT department?s strategic planning process? A. The IT department will have either short-range or long-range plans depending on the organization?s broader plans and objectives. B. The IT department?s strategic plan must be time and project oriented, but not so detailed as to address and help determine priorities to meet business needs. C. Long-range planning for the IT department should recognize organizational goals, technological advances and regulatory requirements. D. Short-range planning for the IT department does not need to be integrated into the short-range plans of the organization since technological advances will drive the IT department plans much quicker than organizational plans.
Change management procedures are established by IS management to: A. control the movement of applications from the test environment to the production environment. B. control the interruption of business operations from lack of attention to unresolved problems. C. ensure the uninterrupted operation of the business in the event of a disaster. D. verify that system changes are properly documented.
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Which of the following would be a compensating control to mitigate risks resulting from an inadequate segregation of duties? A. Sequence check B. Check digit C. Source documentation retention D. Batch control reconciliations
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