An IS auditor should use statistical sampling and not judgmental (nonstatistical) sampling, when:
A. the probability of error must be objectively quantified.
B. the auditor wants to avoid sampling risk.
C. generalized audit software is unavailable.
D. the tolerable error rate cannot be determined.
- 1 Answers
- 7586 Views
- I also Faced
- E-Mail Answers
An IS auditor should use statistical sampling and not judgmental (nonstatistical) sampling, when:
Correct A.
the probability of error must be objectively quantified.
B.
the auditor wants to avoid sampling risk.
C.
generalized audit software is unavailable.
D.
the tolerable error rate cannot be determined.
You are correct, the answer is A.
A. Given an expected error rate and confidence level, statistical sampling is an objective method of sampling, which helps an IS auditor determine the sample size and quantify the probability of error (confidence coefficient).
B. Sampling risk is the risk of a sample not being representative of the population. This risk exists for both judgment and statistical samples.
C. Statistical sampling can use generalized audit software, but it is not required.
D. The tolerable error rate must be predetermined for both judgment and statistical sampling.
Question #: 29 CISA Job Practice Task Statement: 1.2
| Is This Answer Correct ? | 5 Yes | 0 No |
Which of the following systems or tools can recognize that a credit card transaction is more likely to have resulted from a stolen credit card than from the holder of the credit card? A. Intrusion detection systems B. Data mining techniques C. Firewalls D. Packet filtering routers
A B-to-C e-commerce web site as part of its information security program wants to monitor, detect and prevent hacking activities and alert the system administrator when suspicious activities occur. Which of the following infrastructure components could be used for this purpose? A. Intrusion detection systems B. Firewalls C. Routers D. Asymmetric encryption
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
Which of the ISO/OSI model layers provides for routing packets between nodes? A. Data link B. Network C. Transport D. Session
IS auditors are MOST likely to perform compliance tests of internal controls if, after their initial evaluation of the controls, they conclude that: A. a substantive test would be too costly. B. the control environment is poor. C. inherent risk is low. D. control risks are within the acceptable limits.
A long-term IS employee with a strong technical background and broad managerial experience has applied for a vacant position in the IS audit department. Determining whether to hire this individual for this position should be based on the individual's experience and: A. the length of service since this will help ensure technical competence. B. age as training in audit techniques may be impractical. C. IS knowledge since this will bring enhanced credibility to the audit function. D. ability, as an IS auditor, to be independent of existing IS relationships.
The extent to which data will be collected during an IS audit should be determined, based on the: A. availability of critical and required information. B. auditor's familiarity with the circumstances. C. auditee's ability to find relevant evidence. D. purpose and scope of the audit being done.
Which of the following would enable an enterprise to provide access to its intranet (i.e., extranet) across the Internet to its business partners? A. Virtual private network B. Client-server C. Dial-in access D. Network service provider
Which of the following is a form of an Internet attack? A. Searching for software design errors B. Guessing user passwords based on their personal information C. Breaking the deadman's door to gain entry D. Planting a trojan horse
Which of the following procedures would BEST determine whether adequate recovery/restart procedures exist? A. Reviewing program code B. Reviewing operations documentation C. Turning off the UPS, then the power D. Reviewing program documentation
The secure socket layer (SSL) protocol addresses the confidentiality of a message through: A. symmetric encryption. B. message authentication code. C. hash function. D. digital signature certificates.
When auditing security for a data center, an IS auditor should look for the presence of a voltage regulator to ensure that the: A. hardware is protected against power surges. B. integrity is maintained if the main power is interrupted. C. immediate power will be available if the main power is lost. D. hardware is protected against long-term power fluctuations.
Cisco Certifications 
