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CISA DOMAIN 1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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CISA DOMAIN 1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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CISA DOMAIN 1 QUESTIONS ANDANSWERS WITH SOLUTIONS 2024
Interviewing and Observing Personnel - ANSWER Actual Functions - An adequate test to ensure that the
individual who is assigned and authorized to perform a particular function is the person who is actually
doing the job.
Actual Processes and Procedures - allows the IS auditor to gain evidence of compliance and observe
deviations, if any.
Security Awareness - Should be observed to verify an individuals understanding and practice of good
preventive and detective security measures.
Reporting Relationships - Should be observed to ensure that assigned responsibilities and adequate
segregation of duties are being practiced.
Observation Drawbacks - The observer may interfere with the observed environment. People when
observed may change their behaviors.
Statistical Sampling - ANSWER An objective (math based) method of determining the sample size and
selection criteria
Uses the mathematical laws of probability. IS auditor quantitatively decides how closely the sample
should represent the population
Nonstatistical Sampling - ANSWER Use auditor judgement to determine the method of sampling. These
judgements are based on subjective (decision based) judgement as to which items/transactions are the
most material and most risky
Attribute Sampling - ANSWER Sampling model used to estimate the rate of occurrence of a specific
quality in a population. Answers the question of "how many"
Types:
Stop-or-go Sampling - Sampling model that helps prevent excessive sampling of an attribute by allowing
an audit test to be stopped at the earliest possible moment. Used when very few errors will be found in
a population
Discovery Sampling - Sampling model that can be used when the expected occurrence rate is extremely
low. Used when the objective of the audit is to seek out fraud, circumvention of regulations or other
irregularities.
, Variable Sampling - ANSWER Technique used to estimate the monetary value or some other unit of
measure of a population from a sample portion.
Types:
Stratified mean per unit - Statistical model in which the population is divided into groups and samples
are drawn from the various groups; used to produce a smaller overall sample size than unstratified mean
per unit
Unstratified mean per unit - A statistical model in which a sample mean is calculated and projected as an
estimated total
Difference Estimation - Statistical model used to estimate the total difference between audited values
and book values based on differences obtained from sample observations.
Confidence Coefficient - ANSWER A percentage expression of the probability that the characteristics of
the sample are a true representation of the population. 95% is considered a high degree of comfort.
If internal controls are strong, the confidence coefficient may be lowered and the sample size lowered.
The greater the confidence coefficient, the larger the sample size
Expected Error Rate - ANSWER Estimate stated as a percent of errors that may exist. The greater the
expected error rate, the greater the sample size. Applied to attribute sampling, not variable sampling.
Tolerable Error Rate - ANSWER maximum misstatement or number of errors that can exist without an
account being materially misstated
Sample Mean - ANSWER Sum of all the sample values divided by the size of the sample. Measures the
average.
Computer Assisted Audit Techniques CAATs - ANSWER Important tools for the IS auditor in gathering
information from environments. Assist in gathering evidence when systems have different hardware and
software environments. Enable IS auditors to gather information independently. Is a reliable method to
gather evidence. Can include generalized audit software, utility software, debugging and scanning
software, test data. Could aid significantly in the effective and efficient detection of irregularities or
illegal acts. Can be used for continuous auditing.
Judging Materiality of Findings - ANSWER Key to determining this is what would be significant to
different levels of management. Assessment requires judging the potential effect of the finding if
corrective action is not taken
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