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auditing assurance services

Questions and Answers of Auditing Assurance Services

Which of the following assertions is accurate concerning the IAASB?(a) The International Auditing and Assurance Standards Board(IAASB) is an independent standard-setting body that serves the public
Which of the following is accurate concerning the IAASB due process?(a) The IAASB follows a rigorous due process in developing its pronouncement(b) Input is obtained from a wide range of stakeholders
Southern Aurora Limited (SAL) is a large Sydney-based financial institution that operates internationally. It has also established strategic alliances with a number of financial institutions based in
You are the manager of internal audit for the Department of Transport, which is a major government department within your state. You have an internal audit staff of five professionals. Two are senior
You have recently been employed as the manager of internal audit for a large multinational financial services company. It is clear to you that you have been given the job because of your reputation
You are the manager of internal audit of a large multinational foodstuffs company. One day, you meet with one of your audit seniors at her request. She has primary responsibility for information
You are the manager of internal audit for a large Australian city council. The council is responsible for all the normal services-for example, water, sewerage, roads, waste disposal, parklands, and
Which of the following is least likely to be a major focus when undertaking long-run planning for the information systems audit function?a. Identifying the sequence in which material application
In a risk management program, the unit of analysis is:a. The exposure on which the audit team is focusingb. The business process or function to be auditedc. The weighting assigned to a generic riskd.
The primary purpose of control self-assessment is to:a. Educate stakeholders about the reliability of different types of controlsb. Make stakeholders aware of the differences between inherent risk,
Which of the following is not likely to be covered within an audit charter prepared for an organization's information systems audit function?a. Information systems audit function's place within the
Which of the following arguments is most likely to be used in terms of having information systems auditors perform a staff role within an organization:a. Makes better use of scarce information
Which of the following arguments is most likely to be used in support of decentralizing the information systems audit function within an organization:a. A shortage of skilled information systems
Which of the following has been a finding of prior research that has examined whether information systems audit staff should be recruited with an information technology background or an audit
Which of the following is least likely to be a purpose of a yearly staff appraisal meeting conducted between an information systems auditor and his/her manager?a. To determine the interpersonal
Which of the following is least likely to be a reason why the career paths available to information systems auditors are often limited?a. Many organizations have only a few information systems audit
If information systems auditors perform a staff function, which of the following aspects of leadership is likely to be most difficult to accomplish?a. Motivating information systems auditors to
Which of the following statements about exercising leadership processes with information systems auditors is most likely to be false?a. An authoritarian leadership style will be most successful when
Employing an independent consultant to evaluate the information systems audit function every few years is likely to provide most assistance in which of the following areas?a. Evaluating the quality
Which of the following is least likely to be a criterion for defining a profession?a. Existence of a code of ethicsb. Existence of a disciplinary mechanismc. Government-mandated requirement for
A major purpose of the Information Systems Audit and Control Foundation's publication called COBIT: Control Objectives for Information and Related Technologies is:a. To establish a basis for a
A major purpose of the Information Systems Audit and Control Association's Statements on Information Systems Auditing Standards is to:a. Cover temporary gaps in the General Standards for information
Which of the following was not a major goal when the EDP Auditors Foundation established the CISA examination?a. Providing a basis for a disciplinary mechanism within the information systems audit
Which of the following matters is not covered in the code of ethics of the Information Systems Audit and Control Association?a. The need to comply with standards promulgated by the Information
Organizations' increasing use of the Internet has had least impact on:a. The overall structure of the approach used to conduct an information systems auditb. Exposures associated with the quality of
The primary purpose of using a certification authority in electronic commerce is to:a. Ensure both the vendor and customer choose secure private keysb. Provide a banking facility for both the vendor
A major way in which business process engineering has undermined controls in organizations is that it has:a. Reduced the effectiveness of data communications controlsb. Reduced separation of duties
Information systems auditors should be most concerned about management's decision to undertake outsourcing of the information systems function when:a. A long-term contract with the outsourcing vendor
Which of the following statements about the implications of privacy legislation for auditors most likely is false?a. As users of personal data, auditors will be exempt from privacy legislation
If auditors are seeking to detect whether fraud has caused material misstatements in the accounts, data mining most likely will be used to assist them to:a. Extract data from an object-oriented
Which of the following is not an implication of interorganizational information systems and virtual organizations for the conduct of audit work?a. Processing controls become more important than
Give two factors that have undermined the importance of computer system efficiency evaluations and two factors that have increased the importance of computer system efficiency evaluations.
Why might auditors be asked to perform an efficiency evaluation of a computer system?
At the outset of an efficiency evaluation study, why is it important to clearly define the purposes of the evaluation?
Why is it usually difficult to estimate the benefits of an efficiency evaluation study?
Briefly explain the difference between a workload model and a system model. To what extent can the workload model be formulated independently of the system model?
Briefly explain the nature of the four major types of performance indices. For each type, give an example of a specific performance index that might be used in an efficiency evaluation study.
Why must a performance index often be described by a probability distribution rather than a single point estimate?
Even if the system to be evaluated is operational, why might auditors decide to use a workload model to evaluate system efficiency rather than the real workload?
What is meant by the representativeness of a workload model? How can the representativeness of a workload model be measured? In practice, why is it sometimes difficult to evaluate the
The nature of the resource demands generated via the workload model must be appropriate to the system or the component under study. Briefly explain.
Briefly explain the difference between a natural workload model and an artificial workload model. What are the relative advantages and disadvantages of each type of workload model?
Briefly explain the difference between an executable workload model and a nonexecutable workload model. Give an example of each.
What is meant by workload characterization? Give two ways in which auditors might seek to characterize a workload.
Briefly explain the nature of a trace workload model. Give one advantage and one disadvantage of using a trace workload model.
What is the nature of the system model used with an instruction mix workload model? Give three limitations of the output of the system model.
What is the difference between a synthetic job and a kernel program? How will the system models for these two types of artificial workload models differ?
Briefly explain the nature of a benchmark. How are benchmarks developed?
Briefly explain the nature of a probabilistic workload model.
Why should auditors focus on the interevent times when decomposing a system so it can be modeled for efficiency evaluation purposes? When auditors make a decision on the level of the system to be
What are the attributes of a computer system that allow it to be modeled as a queuing system?
Briefly explain the difference between an open queuing model and a closed queuing model. What factor might cause auditors to model a computer system as an open queuing model even though a closed
Briefly explain the importance of the following parameters in a queuing model of a computer system: (a) number of job classes, (b) arrival pattern of job, and (c) service time distribution.
In queuing theory, briefly explain the nature of the Kendall notation. What is its purpose?
What is meant by the processor queuing discipline? How does the queuing discipline affect the nature of jobs awaiting service at the processor?
Why have queuing theorists been concerned with developing approximate methods to solve queuing models?
How can auditors determine which parameters in a queuing model are the most important to calibrate?
Even though the system to be evaluated is operational, why might auditors use a queuing model of the system for efficiency evaluation purposes rather than a simulation model or an empirical model?
Briefly explain the nature of a trace-driven simulation model of a computer system. What are the strengths and limitations of a trace-driven simulation? How can a trace be constructed for a system
What are the three major components of a simulation program? Briefly explain the functions performed by each of these components.
Why is it sometimes difficult to evaluate the validity of a simulation model constructed for efficiency evaluation purposes?
Give two attributes of a simulation that auditors might examine when assessing its face validity as a vehicle for efficiency evaluation purposes.
Briefly explain how auditors would conduct experiments with a simulation model that has been constructed for efficiency evaluation purposes.
Using a simulation, auditors change the device-to-channel assignment to assess the impact on system throughput. How can they determine whether the change has a significant impact on the performance
Briefly explain the nature of an empirical model of a computer system that auditors construct for efficiency evaluation purposes.
What factor determines whether auditors use analysis of variance, analysis of covariance, or a regression model when constructing an empirical model of a computer system to evaluate efficiency?
Identify two questions that can be answered by constructing an analysis of variance model to evaluate system efficiency.
What information is provided by the beta coefficients that are estimated when a regression model is constructed to evaluate the efficiency of a computer system
Which of the following sequence of steps most likely will be used in an efficiency evaluation study?a. Construct a system model; construct a workload model; define performance indicesb. Define
Which of the following is an example of a user-oriented performance index (as opposed to a system-oriented performance index)?a. Channel utilizationb. Throughput ratec. Usable capacityd. Response time
A system workload is:a. The number of jobs in the system under study at any one time during the measurement periodb. The set of resource demands imposed upon the system under study by the set of jobs
A representative workload is one that:a. Is based on a sample of jobs from the real workload or a trace of the real workloadb. Produces the same values of the performance indices in the system under
Which of the following is most likely to be an example of a natural, executable workload model?a. A kernel programb. An instruction mixc. A benchmarkd. A synthetic job
Which of the following is most likely to be an advantage of a natural workload model?a. Its representativeness is highb. It is easy to modifyc. It is cheap to executed. It is compact
Which of the following workload models is most likely to have the highest level of representativeness?a. A kernel programb. A cycle countc. An instruction mixd. A synthetic job
Which of the following is a disadvantage of a probabilistic workload model?a. Lack of compactness with respect to workload characterizationb. Inflexibility when workload characteristics changec.
When modeling a computer system, the boundaries between subsystems can be identified by:a. The physical differences between the components that make up each subsystemb. The presence of some form of
In a queuing model of a computer system, which of the following is least likely to be a server?a. processorb. An input/output devicec. Memoryd. A user
A problem with using queuing theory to model computer systems is:a. Closed models, which are often more representative of real systems than open models, are harder to solve mathematicallyb. Queuing
A queuing model in which all jobs are generated internally to the model is called:a. An internal modelb. A closed modelc. A mixed modeld. An open model
The most likely reason that approximate analysis will be used to solve a queuing model is:a. The system to be modeled does not involve online, interactive inputb. An open queuing model has been used
With a queuing model of a computer system, calibration is the process of:a. Determining the size of the error in the values of the performance indices provided by the queuing modelb. Making the
Which of the following is least likely to be a reason why auditors use a simulation model to evaluate the efficiency of a computer system?a. Cheaper than a queuing modelb. Used to validate the
Which of the following is least likely to be true of a trace-driven simulation model?a. It produces more accurate results than a simulation based on a probabilistic workload modelb. It is more costly
Which of the following is least likely to be a way of validating a simulation model?a. Plotting the means of the distribution of arrival times and service times associated with a probabilistic
If auditors wish to evaluate the effects on system response time of a changed processor service discipline, a changed channel allocation, and the number of logons that occur each minute, it is most
Van Dieman's Banking Corporation (VDBC) is a large, Hobart-based bank with branches scattered throughout Australia and New Zealand. It was first established during the convict days in Tasmania, and
Briefly explain how resource demands are generated in a probabilistic workload model. If the demand for processor time by transactions is distributed normally with a mean of 5 microseconds and a
During the design of a new motor vehicle registration system for a state highway department, the systems analysts must decide on the number of terminals that are needed for the clerks who serve
Spreaditround Ltd., is a large fertilizer company with offices scattered throughout the United States. A communications network links the various offices to the head office in Detroit. The offices
We obtain the following results for a regression model used to assess the impact of the number of jobs per hour that request over 5 microseconds of central processor time
Your organization uses an online real-time update system for several of its application systems. Recently, there has been concern over increasing response times with the system. The workload has been
Chuckle and Sue is a medium-sized, Perth-based firm of solicitors who specialize in providing advice to the yachting industry. Twelve months ago the partners decided to install their first computer
Briefly explain the purposes of long-run planning in relation to the information systems audit function. How might the nature and extent of long-run planning for the information systems audit
Briefly explain the purposes of short-run planning in relation to the information systems audit function.
Outline the major steps in a risk-management program.
What is an audit charter? What are the major components of an audit charter? Why does the information systems audit function need an audit charter?
Briefly explain how the information systems auditor's role within an organization will differ depending on whether they are performing a staff function or a line function.
Give two advantages of the information systems auditor performing a stafffunction role within an organization and two advantages of their performing a line-function role.
Give three factors that most likely will affect whether the information systems audit function within an organization will be centralized or decentralized.

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