IIA-CIA-Part3 Exam Dumps - Internal Audit Function

In an e-commerce environment, a free trade zone refers to the area where communication and transactions occur between trusted parties. It is distinct from security zones designed to separate trusted and untrusted networks. Option A more closely describes a perimeter or demilitarized security concept rather than a free trade zone. Option B describes a filtering or monitoring function, such as firewall or gateway inspection. Option D describes a secured communications zone involving encryption, authentication, and traffic filtering, but it is broader than the specific free trade zone concept. Internal auditors reviewing e-commerce architecture should understand how trust zones, authentication, encryption, transaction logging, and network segmentation interact to protect electronic transactions. Because the free trade zone involves trusted communication and transaction activity, Option C is correct.

The high-low method is a technique used in cost accounting to separate variable and fixed costs by analyzing the highest and lowest levels of activity. By computing the difference between the high and low levels of maintenance costs, the clerk determines the variable portion of maintenance costs.

High-Low Method Calculation:

Identify the highest and lowest activity levels and their corresponding costs.

Compute the change in cost (difference between high and low costs).

Compute the change in activity level (difference between high and low activity).

Divide change in cost by change in activity to determine the variable cost per unit.

Variable Costs Identified: The cost that changes with activity level is the variable maintenance cost.

Option A (Fixed maintenance costs): Fixed costs remain unchanged regardless of activity level, but the high-low method focuses on variable costs.

Option C (Mixed maintenance costs): Mixed costs include both fixed and variable components, but the high-low method isolates the variable portion.

Option D (Indirect maintenance costs): Indirect costs refer to overhead expenses, which may or may not be relevant in the high-low method analysis.

IIA’s Business Knowledge for Internal Auditing (CIA Exam Part 3 Syllabus) covers cost accounting concepts, including cost behavior analysis and methods like the high-low approach.

IIA’s Guide on Financial Management & Internal Control supports understanding cost analysis techniques for budgeting and financial planning.

Why Option B is Correct:Why Other Options Are Incorrect:IIA References:Thus, the most appropriate answer is B. Variable maintenance costs.

IT General Controls (ITGCs) refer to foundational IT controls that support the reliability and security of information systems across all applications. Systems development controls fall under ITGCs because they ensure that:

IT systems are developed, tested, and implemented securely.

Change management, system testing, and access controls are enforced before deployment.

Ensuring Secure Development Practices:

IIA GTAG 8: Auditing Application Controls states that strong systems development controls prevent unauthorized access and errors in IT systems.

Risk Mitigation in Software Changes:

IIA Standard 2110 – Governance requires IT governance to enforce security policies for system development.

Weak controls increase risks of security vulnerabilities and financial misstatements.

Alignment with COSO & COBIT Frameworks:

COBIT (Control Objectives for Information and Related Technologies) classifies systems development controls as an ITGC domain.

COSO Internal Control – Integrated Framework supports secure system change processes.

A. Error listings (Incorrect)

Reason: Error listings are application controls that detect transaction errors within specific processes. ITGCs support all systems, not just specific applications.

B. Distribution controls (Incorrect)

Reason: Distribution controls deal with physical/logistical distribution of information or resources, not core ITGC functions.

C. Transaction logging (Incorrect)

Reason: While transaction logging is important for data integrity and security, it is an application control, not a general IT control.

IIA GTAG 8: Auditing Application Controls – Defines IT general controls and application-specific controls.

IIA Standard 2110 – Governance – Requires secure IT development and governance structures.

COBIT & COSO Internal Control Frameworks – Classify system development controls as critical ITGCs.

Why is Answer D Correct?Analysis of Incorrect Answers:IIA References:Thus, the correct answer is D. Systems development controls.

A detective control is a security measure that identifies and alerts an organization to potential cyberthreats after they occur but before they cause harm. Detective controls do not prevent attacks but help detect them in a timely manner.

Why Option B (Monitoring for vulnerabilities based on industry intelligence) is Correct:

Continuous monitoring for vulnerabilities helps detect emerging threats, security breaches, and weaknesses in IT systems.

Uses threat intelligence feeds, security information and event management (SIEM) systems, and intrusion detection systems (IDS).

Helps organizations respond quickly to cyberattacks by identifying patterns, suspicious activity, or known vulnerabilities.

Why Other Options Are Incorrect:

Option A (A list of trustworthy, good traffic and a list of unauthorized, blocked traffic):

Incorrect because this describes a whitelisting/blacklisting technique, which is a preventive control, not a detective control.

Option C (Comprehensive service level agreements with vendors):

Incorrect because service level agreements (SLAs) ensure contractual obligations, but do not detect security threats.

Option D (Firewall and other network perimeter protection tools):

Incorrect because firewalls are preventive controls, designed to block unauthorized access, not detect threats after they occur.

IIA GTAG – " Auditing Cybersecurity Risks " : Discusses detective controls such as vulnerability monitoring and threat intelligence.

COBIT 2019 – DSS05 (Manage Security Services): Recommends continuous monitoring for cyber threats as a detective control.

NIST Cybersecurity Framework – Detect Function: Highlights vulnerability management and threat monitoring as key detective measures.

IIA References:Thus, the correct answer is B. Monitoring for vulnerabilities based on industry intelligence.

Capital budgeting techniques help organizations evaluate long-term investment decisions by assessing future cash flows and their present value. A present value of an annuity table is commonly used in methods that involve discounted cash flows over multiple periods.

Let ' s analyze the options:

A. Cash payback technique.

Incorrect. The payback period simply calculates the time needed to recover an investment and does not use discounting or present value tables.

B. Discounted cash flow technique: net present value (NPV).

Incorrect. While NPV involves discounting future cash flows, it does not specifically rely on the present value of an annuity table. Instead, NPV uses individual present values of cash flows at a specific discount rate.

C. Annual rate of return.

Incorrect. This method calculates return on investment based on accounting numbers and does not involve discounting future cash flows.

D. Discounted cash flow technique: internal rate of return (IRR). ✅ (Correct Answer)

Correct. The IRR method determines the discount rate that equates the present value of cash inflows to the initial investment (i.e., NPV = 0).

The present value of an annuity table is essential in IRR calculations, especially when future cash flows occur at regular intervals.

IRR is widely used in capital budgeting to compare different investment opportunities.

IIA GTAG (Global Technology Audit Guide) – Auditing Capital Budgeting Decisions – Discusses techniques used for investment evaluation.

COSO ERM Framework – Financial Decision-Making – Covers capital budgeting risks and techniques.

GAAP & IFRS – Investment Decision Guidelines – Explains the importance of present value calculations in investment evaluations.

IIA Standard 2130 – Control Over Capital Investments – Focuses on internal audit’s role in assessing capital budgeting techniques.

IIA References:

Periodic testing of backup media is a recognized backup best practice because backups have value only if data can actually be restored when needed. Media may be corrupted, incomplete, unreadable, encrypted incorrectly, or incompatible with recovery systems. Performing full backups on weekdays is not universally a best practice; backup frequency and type should be based on recovery objectives and system criticality. Storing backups only onsite is weak because a local disaster may destroy both production systems and backups. Verifying retrieval within seven years is too arbitrary; retention should be based on legal, regulatory, operational, and recovery requirements. Internal auditors should review backup schedules, offsite storage, encryption, media integrity, restore testing, and retention. Therefore, Option B is correct.

Activity-Based Costing (ABC) is a cost allocation method that assigns overhead costs based on activities that drive costs rather than using a single volume-based measure like labor hours or machine hours. It provides a more accurate allocation of indirect costs to products or services.

ABC Costing and Its Flexibility (Correct Answer: C)

ABC can be applied to both job order costing (which tracks costs for individual products or projects) and process costing (which tracks costs across continuous production processes).

IIA Standard 2120 – Risk Management suggests that internal auditors evaluate whether cost allocation methodologies align with business objectives and financial accuracy.

ABC improves cost accuracy by assigning overhead to specific activities, making it useful in different costing systems.

Why the Other Options Are Incorrect:

A. " ABC is similar to conventional costing in how it treats overhead allocation. " (Incorrect)

Traditional costing allocates overhead based on a single cost driver, such as direct labor or machine hours.

ABC allocates overhead based on multiple activity drivers, making it more precise.

B. " ABC uses a single unit-level basis to allocate overhead. " (Incorrect)

ABC does not rely on a single unit-level measure.

Instead, it uses multiple cost drivers at different levels (unit-level, batch-level, product-level, and facility-level).

D. " The primary disadvantage of ABC is less accurate product costing. " (Incorrect)

ABC is actually more accurate than traditional costing in assigning overhead costs.

The primary disadvantages of ABC are its complexity and cost of implementation, not reduced accuracy.

IIA Standard 2120 – Risk Management (Assessing the appropriateness of costing methodologies)

IIA Standard 2130 – Compliance (Ensuring financial management practices align with standards)

IIA Standard 2210 – Engagement Objectives (Evaluating financial controls and cost allocation methods)

Step-by-Step Justification:IIA References for This Answer:Thus, the best answer is C. An ABC costing system may be used with either a job order or a process cost accounting system, as ABC is flexible and can be applied in both costing environments.