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Which of the following would be a MAJOR disadvantage of
using prototyping as a systems development methodology?
A. User expectations of project timescales may be overly
optimistic.
B. Effective change control and management is impossible to
implement.
C. User participation in day-to-day project management may
be too extensive.
D. Users usually are not sufficiently knowledgeable to
assist in system development.
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Answer: A
The fact that prototyping involves demonstrating various
external elements of a completed project to users, such as
screen layouts and printed reports, may cause a user to
believe that the project is closer to completion than it
actually is (that underlying programmed processes are also
completed). This may result in users having unrealistic
expectations of project delivery. Change control may be more
difficult, but is certainly not impossible. Users are
unlikely to be involved in day-to-day project management,
and the whole point of prototyping is that users do usually
have sufficient knowledge to assist in system development.
| Is This Answer Correct ? | 0 Yes | 2 No |
A validation which ensures that input data are matched to predetermined reasonable limits or occurrence rates, is known as: A. Reasonableness check. B. Validity check. C. Existence check. D. Limit check.
The reliability of an application system's audit trail may be questionable if: A. user IDs are recorded in the audit trail. B. the security administrator has read-only rights to the audit file. C. date time stamps record when an action occurs. D. users can amend audit trail records when correcting system errors.
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A single digitally signed instruction was given to a financial institution to credit a customer's account. The financial institution received the instruction three times and credited the account three times. Which of the following would be the MOST appropriate control against such multiple credits? A. Encrypting the hash of the payment instruction with the public key of the financial institution. B. Affixing a time stamp to the instruction and using it to check for duplicate payments. C. Encrypting the hash of the payment instruction with the private key of the instructor. D. Affixing a time stamp to the hash of the instruction before being digitally signed by the instructor.
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The primary role of an IS auditor during the system design phase of an application development project is to: A. advise on specific and detailed control procedures. B. ensure the design accurately reflects the requirement. C. ensure all necessary controls are included in the initial design. D. advise the development manager on adherence to the schedule.
In large corporate networks having supply partners across the globe, network traffic may continue to rise. The infrastructure components in such environments should be scalable. Which of the following firewall architectures limits future scalability? A. Appliances B. Operating system based C. Host based D. Demilitarized
Which of the following data validation edits is effective in detecting transposition and transcription errors? A. Range check B. Check digit C. Validity check D. Duplicate check
During which of the following phases in systems development would user acceptance test plans normally be prepared? A. Feasibility study B. Requirements definition C. Implementation planning D. Post-implementation review
Which of the following database administrator (DBA) activities is unlikely to be recorded on detective control logs? A. Deletion of a record B. Change of a password C. Disclosure of a password D. Changes to access rights
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