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

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predefined security rules. It is the primary control for preventing unauthorized external access to an organization's network, making it the best answer.

A. Firewall (Correct Answer) – Firewalls prevent unauthorized access by filtering traffic, blocking malicious connections, and securing the network perimeter.

B. Encryption – While encryption protects data confidentiality, it does not actively prevent unauthorized access to a network.

C. Antivirus – Antivirus software protects against malware and viruses but does not prevent unauthorized network access.

D. Biometrics – Biometrics controls physical or logical access (e.g., fingerprint authentication) but does not secure a network from external threats.

IIA GTAG 15 – Information Security Governance highlights firewalls as a critical security control for network protection.

IIA IPPF Standard 2110 – Governance emphasizes the need for network security policies that include firewalls.

NIST SP 800-41 Rev. 1 – Guidelines on Firewalls and Firewall Policy states that firewalls are the first line of defense in securing organizational networks.

Explanation of Each Option:IIA References:

Key Performance Indicators (KPIs) are used to measure and monitor the effectiveness of a process within an organization. In this case, the internal auditor found that 3% of payments did not match submitted invoices, which indicates a potential control weakness in the accounts payable process.

Process Owner’s Tolerance for Performance Deviations (Correct Answer: A)

The most relevant KPI would be one that sets acceptable error limits for invoice payments.

IIA Standard 2120 – Risk Management states that auditors should assess management's risk tolerance and evaluate whether processes are operating within acceptable limits.

If the organization's threshold for errors is 1% and the audit found 3%, it indicates a significant issue requiring corrective action.

This KPI helps the auditor assess materiality and determine the significance of the 3% deviation.

Why the Other Options Are Incorrect:

B. KPI defining the importance of performance levels and disbursement statistics (Incorrect)

While understanding performance levels and disbursement statistics is useful, this KPI does not directly address error tolerance or the impact of deviations.

C. KPI defining timeliness of reporting disbursement errors (Incorrect)

Reporting errors quickly is important, but this KPI does not help in determining whether a 3% error rate is acceptable or excessive.

D. KPI defining operating ratio objectives (Incorrect)

Operating ratio objectives focus on financial efficiency rather than error tolerance or accuracy in invoice processing.

IIA Standard 2120 – Risk Management (Assessing risk tolerance in financial processes)

IIA Standard 2210 – Engagement Objectives (Evaluating process performance against defined thresholds)

IIA Standard 2130 – Compliance (Ensuring adherence to financial control policies)

Step-by-Step Justification:IIA References for This Answer:Thus, the best answer is A. A KPI that defines the process owner's tolerance for performance deviations, as it directly helps the auditor assess the materiality of the 3% error rate in accounts payable.

Definition of Flexible Budgets:

Flexible budgeting allows organizations to adjust budgeted expenses based on actual performance levels.

Unlike static budgets, flexible budgets provide different financial projections for varying levels of activity.

Why Flexible Budgets are Useful:

They adjust for actual business conditions, making them useful in planning and cost control.

Organizations can compare actual results against the appropriate budget level rather than a single static budget.

Why Other Options Are Incorrect:

A. Exclude fixed costs: Fixed costs are included; only variable costs change with activity levels.

B. Exclude outcome projections: Flexible budgets still use projected outcomes but adjust them based on actual performance.

C. Red flag for weak control: Flexible budgets enhance control by allowing real-time adjustments, making them a best practice rather than a red flag.

IIA GTAG on Financial Management: Covers budgeting methods, including flexible budgeting.

IIA Standard 2120 – Risk Management: Encourages adaptive financial planning for effective risk management.

COSO ERM Framework: Recommends dynamic financial planning, including flexible budgeting.

Relevant IIA References:✅ Final Answer: Flexible budgets project data for different levels of activity (Option D).

Physical controls are security measures that prevent unauthorized physical access to critical assets, such as IT infrastructure, sensitive documents, or restricted areas.

(A) Preventing database administrators from initiating program changes:

This is a logical (IT) control rather than a physical control. Logical controls manage access permissions and prevent unauthorized software changes.

(B) Blocking technicians from getting into the network room (Correct Answer):

This is a physical control because it prevents unauthorized personnel from physically accessing critical IT infrastructure, such as servers and networking devices.

Unauthorized access to a network room could lead to data breaches, hardware manipulation, or cyberattacks.

(C) Restricting system programmers' access to database facilities:

This is an access control measure, which can be either logical (permissions, role-based access) or physical. However, it primarily refers to IT access controls rather than a physical security measure.

(D) Using encryption for data transmitted over the public internet:

This is a technical control, not a physical one. Encryption protects data but does not prevent physical breaches.

IIA GTAG 17: Auditing IT Security – Emphasizes the role of physical security in protecting IT infrastructure.

COBIT Framework – DSS05 (Manage Security Services) – Highlights physical access restrictions as a key security measure.

ISO/IEC 27001: Information Security Management System – Identifies physical security as a fundamental control for IT risk management.

Analysis of Each Option:IIA References:Conclusion:Since physical security controls prevent unauthorized physical access, option (B) is the correct answer.