PDF IIA-CIA-Part3 Study Guide

The four-level model for reviewing application controls follows a hierarchy:

Level 1 - Activity: Smallest unit of work within a process.

Level 2 - Subprocess: A collection of related activities that accomplish a part of the process.

Level 3 - Major Process: A significant business function consisting of multiple subprocesses.

Level 4 - Mega Process: The highest level, representing an end-to-end business process, often spanning multiple departments or systems.

Mega processes encompass entire business functions (e.g., order-to-cash or procure-to-pay cycles).

They involve multiple major processes and provide a high-level perspective on business operations.

At level 4, the focus is on strategic alignment of IT application controls with enterprise-wide objectives.

A. Activity – Too detailed and only represents individual tasks.

B. Subprocess – A subset of a major process, not a high-level business function.

C. Major Process – A significant function but not the highest-level view.

IIA’s GTAG on Business Process Controls – Recommends a hierarchical review model to assess IT application controls.

COBIT 2019 (Governance and Management of IT) – Defines mega processes as enterprise-wide workflows.

ISO 27001 Annex A.12 (Operational Security) – Highlights process-based security in IT controls.

Why "Mega Process" is the Correct Answer?Why Not the Other Options?IIA References:✅ Final Answer: D. Mega process.

An assurance map provides an overview of assurance activities across the organization and helps identify gaps (uncovered risks) and duplications (overlap of work). This enhances coordination among assurance providers and supports the board’s governance oversight.

Option B is incorrect because the board does not coordinate activities; internal audit facilitates assurance mapping. Option C misinterprets the tool—it does not assign specific audits. Option D refers to staff competencies, not assurance coverage.

Comprehensive and Detailed In-Depth Explanation:

Computer hardware refers to the physical components of a computer system.

Workstation: A high-performance computer designed for technical or scientific applications.

Modem: A device that modulates and demodulates signals for data transmission over communication lines.

Disk drive: A device that reads and/or writes data to a disk storage medium.

Option D lists only physical components, fitting the definition of computer hardware.

In contrast:

Value-added network (option A): A hosted service offering specialized networking services, not a physical component.

Data warehouse (option B): A system used for reporting and data analysis, representing a data storage concept rather than a physical device.

Firewall (option C): While it can be hardware, it is often implemented as software; thus, the term doesn't exclusively denote hardware.

Therefore, option D accurately represents a list of computer hardware components.

If the internal audit activity lacks the necessary skills to perform certain audits, this represents a limitation that could impair internal audit’s ability to meet its responsibilities. The CAE must report such resource or competency limitations to the board.

Options A, B, and D (procedures, forms, or methods) may be adjusted internally, but they do not rise to the level of a significant limitation requiring board reporting. Skills gaps, however, directly impact audit coverage and effectiveness.