IIA Updated IIA-CIA-Part3 Exam Questions and Answers by erik

Logical access controls are security measures that restrict electronic access to systems, applications, and data based on user roles and permissions. These controls ensure that only authorized personnel have access to specific functions or information.

Logical access controls enforce role-based access management, ensuring users only have permissions aligned with their job functions.

Proper role definitions help prevent fraud and unauthorized access by enforcing segregation of duties (SoD).

The IIA’s GTAG 4 – Management of IT Auditing highlights logical access as a core security control that supports SoD.

A. Require complex passwords to be established and changed quarterly → Incorrect. While strong passwords are an access control measure, they are not a comprehensive logical access control (they are part of authentication mechanisms).

B. Require swipe cards to control entry into secure data centers. → Incorrect. Swipe card access is a physical access control, not a logical access control.

C. Monitor access to the data center with closed-circuit camera surveillance. → Incorrect. CCTV surveillance is also a physical security control, not a logical access control.

IIA GTAG 4 – Management of IT Auditing emphasizes that logical access controls should be role-based and support segregation of duties.

IIA Standard 2110 – Governance states that organizations should maintain appropriate access controls to protect sensitive information.

NIST SP 800-53 (Security and Privacy Controls for Federal Information Systems) identifies logical access control as a fundamental cybersecurity measure.

Why Option D is Correct?Explanation of the Other Options:IIA References & Best Practices:Thus, the correct answer is D. Maintain current role definitions to ensure appropriate segregation of duties.

Residual income (RI) is a performance measure that considers both profits and the investment base by calculating the excess income generated over a required minimum return on investment (ROI).

(A) Residual income (Correct Answer):

Formula: Residual Income=Operating Income−(Required Rate of Return×Investment Base)\text{Residual Income} = \text{Operating Income} - (\text{Required Rate of Return} \times \text{Investment Base})Residual Income=Operating Income−(Required Rate of Return×Investment Base)

RI evaluates profitability after accounting for the cost of capital, making it a better measure of financial performance than net income alone.

It considers both profits (net operating income) and the investment base (capital employed).

(B) A flexible budget:

A flexible budget adjusts based on changes in activity levels but does not directly include investment base considerations.

(C) Variance analysis:

Variance analysis compares actual vs. budgeted performance but does not consider investment base.

(D) A contribution margin income statement by segment:

The contribution margin shows revenue minus variable costs but does not factor in the investment base.

IIA Practice Guide: Measuring Performance – Recognizes residual income as a key metric for evaluating divisional performance.

COSO ERM Framework – Performance Measurement Component – Emphasizes using metrics that account for both profitability and investment.

IIA Standard 2120 - Risk Management – Highlights the importance of financial metrics in evaluating strategic objectives.

Analysis of Each Option:IIA References:Conclusion:Since Residual Income (RI) considers both profits and investment base, option (A) is the correct answer.

Understanding The IIA’s Three Lines Model:

The Three Lines Model defines responsibilities for risk management and control across different organizational functions:

First Line: Operational management (owns and manages risks).

Second Line: Risk and compliance functions (monitors and facilitates risk management).

Third Line: Internal audit (provides independent assurance).

Why Third-Party and Supplier Assessments Are Shared Across All Three Lines:

First Line (Operational Teams & IT Security): Ensures that vendors comply with security standards.

Second Line (Risk & Compliance Teams): Conducts due diligence and ensures compliance with cybersecurity regulations.

Third Line (Internal Audit): Independently evaluates supplier risk management processes.

Why Other Options Are Less Relevant:

B. Recruitment and retention of certified IT talent – Primarily a first-line management responsibility (HR and IT departments).

C. Classification of data and design of access privileges – Typically a first-line IT security function, with oversight from the second line.

D. Creation and maintenance of secure network configurations – Falls under first-line IT operations with oversight but not shared by all three lines.

IIA’s Three Lines Model (2020 Update): Emphasizes shared responsibilities in areas like third-party risk.

IIA Practice Guide on Third-Party Risk Management: Internal audit must assess supplier security and compliance.

COSO ERM Framework: Highlights vendor risk management as a cross-functional responsibility.

Relevant IIA References:✅ Final Answer: Assessments of third parties and suppliers (Option A).