An IS auditor evaluates the test results of a modification
to a system that deals with payment computation. The auditor
finds that 50 percent of the calculations do not match
predetermined totals. Which of the following would MOST
likely be the next step in the audit?
A. Design further tests of the calculations that are in error.
B. Identify variables that may have caused the test results
to be inaccurate.
C. Examine some of the test cases to confirm the results.
D. Document the results and prepare a report of findings,
conclusions and recommendations.
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Answer: C
The IS auditor should next examine cases where incorrect
calculations occurred and confirm the results. After the
calculations have been confirmed, further tests can be
conducted and reviewed. Report preparation, findings and
recommendations would not be made until all results are
confirmed.
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Use of asymmetric encryption in an Internet e-commerce site, where there is one private key for the hosting server and the public key is widely distributed to the customers, is MOST likely to provide comfort to the: A. customer over the authenticity of the hosting organization. B. hosting organization over the authenticity of the customer. C. customer over the confidentiality of messages from the hosting organization. D. hosting organization over the confidentiality of messages passed to the customer.
Which of the following represents the GREATEST risk created by a reciprocal agreement for disaster recovery made between two companies? A. Developments may result in hardware and software incompatibility. B. Resources may not be available when needed. C. The recovery plan cannot be tested. D. The security infrastructures in each company may be different.
If inadequate, which of the following would be the MOST likely contributor to a denial-of-service attack? A. Router configuration and rules B. Design of the internal network C. Updates to the router system software D. Audit testing and review techniques
Which of the following is a strength of the program evaluation review technique (PERT) over other techniques? PERT: A. considers different scenarios for planning and control projects. B. allows the user to input program and system parameters. C. tests system maintenance processes accurately. D. estimates costs of system projects.
In a business continuity plan, there are several methods of providing telecommunication continuity. One method is diverse routing which involves: A. providing extra capacity with the intent of using the surplus capacity should the normal primary transmission capability not be available. B. routing information via other alternate media such as copper cable or fiber optics. C. providing diverse long-distance network availability utilizing T-1 circuits among the major long-distance carriers. D. routing traffic through split-cable facilities or duplicate-cable facilities.
An enterprisewide network security architecture of public key infrastructure (PKI) would be comprised of: A. A public key cryptosystem, private key cryptosystem and digital certificate B. A public key cryptosystem, symmetric encryption and certificate authorities C. A symmetric encryption, digital certificate and kerberos authentication D. A public key cryptosystem, digital certificate and certificate authorities
A number of system failures are occurring when corrections to previously detected errors are resubmitted for acceptance testing. This would indicate that the maintenance team is probably not adequately performing which of the following types of testing? A. Unit testing B. Integration testing C. Design walk-throughs D. Configuration management
Which of the following is the BEST form of transaction validation? A. Use of key field verification techniques in data entry B. Use of programs to check the transaction against criteria set by management C. Authorization of the transaction by supervisory personnel in an adjacent department D. Authorization of the transaction by a department supervisor prior to the batch process
When conducting a review of business process re-engineering, an IS auditor found that a key preventive control had been removed. In this case, the IS auditor should: A. inform management of the finding and determine if management is willing to accept the potential material risk of not having that preventing control. B. determine if a detective control has replaced the preventive control during the process and if so, not report the removal of the preventive control. C. recommend that this and all control procedures that existed before the process was reengineered be included in the new process. D. develop a continuous audit approach to monitor the effects of the removal of the preventive control.
Which of the following is MOST likely to occur when a system development project is in the middle of the programming/coding phase? A. Unit tests B. Stress tests C. Regression tests D. Acceptance tests
An organization is proposing to install a single sign-on facility giving access to all systems. The organization should be aware that: A. Maximum unauthorized access would be possible if a password is disclosed. B. User access rights would be restricted by the additional security parameters. C. The security administrator?s workload would increase. D. User access rights would be increased.
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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