Which of the following data entry controls provides the
GREATEST assurance that the data is entered correctly?
A. Using key verification
B. Segregating the data entry function from data entry
verification
C. Maintaining a log/record detailing the time, date,
employee's initials/user id and progress of various data
preparation and verification tasks
D. Adding check digits
Answer / guest
Answer: A
Key verification or one-to-one verification will yield the
highest degree of confidence that data entered is error
free. However, this could be impractical for large amounts
of data. The segregation of the data entry function from
data entry verification is an additional data entry control
but does not address accuracy. Maintaining a log/record
detailing the time, date, employee's initials/user ID and
progress of various data preparation and verification tasks,
provides an audit trail. A check digit is added to data to
ensure that original data have not been altered. If a check
digit is wrongly keyed, this would lead to accepting
incorrect data but would only apply to those data elements
having a check digit.
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Which of the following methods of suppressing a fire in a data center is the MOST effective and environmentally friendly? A. Halon gas B. Wet-pipe sprinklers C. Dry-pipe sprinklers D. Carbon dioxide gas
After a full operational contingency test, the IS auditor performs a review of the recovery steps and concludes that the elapsed time until the technological environment and systems were actually functioning, exceeded the required critical recovery time. Which of the following should the auditor recommend? A. Perform an integral review of the recovery tasks. B. Broaden the processing capacity to gain recovery time. C. Make improvements in the facility's circulation structure. D. Increase the amount of human resources involved in the recovery.
An IS auditor is reviewing the change management process for an enterprise resource planning (ERP) application. Which of the following is the BEST method for testing program changes? A. Select a sample of change tickets and review them for authorization. B. Perform a walk-through by tracing a program change from start to finish. C. Trace a sample of modified programs to supporting change tickets. D. Use query software to analyze all change tickets for missing fields.
In a system development project the purpose of the program and procedure development phase is to: A. prepare, test and document all programs and manual procedures. B. document a business or system problem to a level at which management can select a solution. C. prepare a high-level design of a proposed system solution and present reasons for adopting a solution. D. expand the general design of an approved solution so that program and procedure writing can begin.
Following a reorganization of a company's legacy database, it was discovered that records were accidentally deleted. Which of the following controls would have MOST effectively detected this occurrence? A. Range check B. Table lookups C. Run-to-run totals D. One-for-one checking
Which of the following components of a business continuity plan is PRIMARILY the responsibility of an organization?s IS department? A. Developing the business continuity plan B. Selecting and approving the strategy for business continuity plan C. Declaring a disaster D. Restoring the IS systems and data after a disaster
In a small organization, where segregation of duties is not practical, an employee performs the function of computer operator and application programmer. Which of the following controls should the IS auditor recommend? A. Automated logging of changes to development libraries B. Additional staff to provide segregation of duties C. Procedures that verify that only approved program changes are implemented D. Access controls to prevent the operator from making program modifications
Which of the following systems-based approaches would a financial processing company employ to monitor spending patterns to identify abnormal patterns and report them? A. A neural network B. Database management software C. Management information systems D. Computer assisted audit techniques
Confidential data stored on a laptop is BEST protected by: A. storage on optical disks. B. logon ID and password. C. data encryption. D. physical locks.
A hub is a device that connects: A. two LANs using different protocols. B. a LAN with a WAN. C. a LAN with a metropolitan area network (MAN). D. two segments of a single LAN.
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
Programs that can run independently and travel from machine to machine across network connections, with the ability to destroy data or utilize tremendous computer and communication resources, are referred to as: A. trojan horses. B. viruses. C. worms. D. logic bombs.