According to the CGEIT certification guide, the most effective approach to ensure senior management sponsorship of IT risk management is to integrate IT risk into enterprise risk management (ERM). This is because ERM is a holistic and strategic approach that considers all types of risks that may affect the achievement of the enterprise's objectives. By integrating IT risk into ERM, senior management can better understand the impact and interdependencies of IT risks on the enterprise's performance and value, and can provide more effective oversight and guidance to the IT risk management processes1. The other options are less effective than option D, as they do not address the alignment and integration of IT risk with the enterprise's strategy and objectives. References:= CGEIT certification guide, domain 3: Risk Optimization, section 3.1: Risk Governance, page 86.

A common risk management taxonomy is a set of terms and definitions that are used consistently across the enterprise to describe, measure, and report on risks. A common risk management taxonomy is essential for integrating IT risk with the ERM framework, as it enables a common understanding of risk concepts, categories, and levels among different stakeholders and functions. A common risk management taxonomy also facilitates the aggregation and comparison of risks across the enterprise, and supports the alignment of risk appetite and tolerance with business objectives12. : 1: Integrated Enterprise IT Risk Management (ERM) Programs - CohnReznick3 2: Introducing Risk Taxonomy - ISACA4

Section: Volume C

Section: Volume B