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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
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Answer: A
Inadequate router configuration and rules would lead to an
exposure to denial-of-service attacks. Choices B and C would
be lesser contributors. Choice D is incorrect because audit
testing and review techniques are applied after the fact.
| Is This Answer Correct ? | 6 Yes | 0 No |
The PRIMARY advantage of a continuous audit approach is that it: A. does not require an IS auditor to collect evidence on system reliability while processing is taking place. B. requires the IS auditor to review and follow up immediately on all information collected. C. can improve system security when used in time-sharing environments that process a large number of transactions. D. does not depend on the complexity of an organization's computer systems.
An IS auditor has recently discovered that because of a shortage of skilled operations personnel, the security administrator has agreed to work one late-night shift a month as the senior computer operator. The MOST appropriate course of action for the IS auditor is to: A. advise senior management of the risk involved. B. agree to work with the security officer on these shifts as a form of preventative control. C. develop a computer-assisted audit technique to detect instances of abuses of this arrangement. D. review the system log for each of the late-night shifts to determine whether any irregular actions occurred.
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.
Which of the following is the MOST effective technique for providing security during data transmission? A. Communication log B. Systems software log C. Encryption D. Standard protocol
Compensating controls are intended to: A. reduce the risk of an existing or potential control weakness. B. predict potential problems before they occur. C. remedy problems discovered by detective controls. D. report errors or omissions.
Congestion control is BEST handled by which OSI layer? A. Data link B. Session layer C. Transport layer D. Network layer
What type of transmission requires modems? A. Encrypted B. Digital C. Analog D. Modulated
Which of the following would be considered a business risk? A. Former employees B. Part-time and temporary personnel C. Loss of competitive edge D. Hackers
When evaluating the collective effect of preventive, detective or corrective controls within a process an IS auditor should be aware: A. of the point at which controls are exercised as data flows through the system. B. that only preventive and detective controls are relevant. C. that corrective controls can only be regarded as compensating. D. that classification allows an IS auditor to determine which controls are missing.
An IS auditor discovers that an organization?s business continuity plan provides for an alternate processing site that will accommodate fifty percent of the primary processing capability. Based on this, which of the following actions should the IS auditor take? A. Do nothing, because generally, less than twenty-five percent of all processing is critical to an organization?s survival and the backup capacity, therefore is adequate. B. Identify applications that could be processed at the alternate site and develop manual procedures to backup other processing. C. Ensure that critical applications have been identified and that the alternate site could process all such applications. D. Recommend that the information processing facility arrange for an alternate processing site with the capacity to handle at least seventy-five percent of normal processing.
The PRIMARY advantage of a continuous audit approach is that it: A. does not require an IS auditor to collect evidence on system reliability while processing is taking place. B. requires the IS auditor to review and follow up immediately on all information collected. C. can improve system security when used in time-sharing environments that process a large number of transactions. D. does not depend on the complexity of an organization's computer systems.
In a data warehouse, data quality is achieved by: A. cleansing. B. restructuring. C. source data credibility. D. transformation.
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