CISA Information System Auditing Process Practice Question
An IS auditor is planning an audit of a small organization with limited IT staff. Which approach is most appropriate?
⚠ Common exam trap
CISA often tests the misconception that limited resources justify reducing audit scope or relying on inquiry, when the correct response is to apply risk-based prioritization without compromising audit rigor.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a risk-based approach to focus on high-risk areas
A risk-based approach is most appropriate because it directs limited audit resources toward the areas of highest risk and impact, which is essential when the organization has constrained IT staffing. This aligns with ISACA's risk-based auditing methodology, ensuring audit effort is proportional to risk rather than spread uniformly or reduced arbitrarily.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Rely solely on inquiry to reduce workload
Why it's wrong here
Inquiry alone yields unverified assertions and cannot provide sufficient appropriate evidence; observation, inspection and reperformance are still required. It tempts because limited staff make inquiry cheap and quick, and it is legitimately useful as a starting point when scoping and planning the audit.
- ✓
Use a risk-based approach to focus on high-risk areas
Why this is correct
A risk-based approach directs scarce audit resources toward the areas of greatest exposure, which suits a small organisation where limited IT staff cannot support exhaustive testing. Comprehensive or cyclical coverage would over-extend the available audit capacity.
- ✗
Postpone the audit until more staff are available
Why it's wrong here
Postponing leaves risks unassessed indefinitely; the auditor should adapt scope, timing and reliance on staff. It tempts because under-resourcing genuinely threatens audit quality, and deferral would be defensible where the organisation cannot provide any reliable evidence or access at all.
- ✗
Audit all areas equally to ensure full coverage
Why it's wrong here
Auditing every area to identical depth ignores the risk-based approach that limited IT staffing demands, spreading scarce audit resources thinly across low-risk domains. It is tempting because full coverage sounds thorough, and equal treatment would suit a well-resourced audit function where comprehensive assurance across all areas is genuinely achievable.
Go deeper
Related to this question
About these practice questions
This CISA question is part of Courseiva's 934-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official ISACA exam blueprint
This CISA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISA exam.