CISA Practice Questions in 2026: How to Pick a Question Bank (5-Point Checklist)
Not all CISA question banks are equal. Five criteria that separate prep that works from prep that wastes 80 hours of your life.
Quick answer
A good CISA question bank in 2026 hits all five of these: 2,000+ original questions (not IIA / ISACA scrapes), 5-domain coverage matched to the 2024 ISACA outline, explanations averaging 150+ words with ITAF / COBIT citations, difficulty tagging that mirrors the actual ISACA difficulty distribution, and a path to time-boxed mocks (3-4 full 150-question simulations). Picking a bank that fails any single one of these costs you 20-40 hours of wasted study or worse — a re-take.
This article gives you the criteria, then shows how to verify them in 10 minutes before paying.
Why this matters for CISA specifically
CISA's pass rate sits around 52% first-attempt globally (ISACA 2025 annual report). The candidates above that line share one trait: their question bank surfaced the types of questions ISACA actually asks, not generic IT-audit MCQs.
The ISACA exam blueprint is unusually specific. Domain weights are public and stable since 2024:
| Domain | Weight | What it tests |
|---|---|---|
| 1 — Information Systems Auditing Process | 21% | ITAF, planning, evidence, reporting |
| 2 — Governance & Management of IT | 17% | COBIT 2019, IT strategy, board reporting |
| 3 — Information Systems Acquisition, Development & Implementation | 12% | SDLC, project mgmt, testing |
| 4 — Information Systems Operations & Business Resilience | 23% | BCP/DR, capacity, change mgmt |
| 5 — Protection of Information Assets | 27% | Cryptography, identity, network security |
Domains 4 and 5 are 50% of the exam. A question bank that under-indexes either is fatal. We've seen banks where Domain 5 (the heaviest weight) had fewer questions than Domain 3 (the lightest). Verify weight distribution before paying.
The 5-point checklist
1. Original questions, not item-bank scrapes
The ISACA Code of Professional Ethics explicitly forbids candidates from sharing or reusing official exam items. Banks that scrape forums or older exam papers will get you flagged on review. Look for explicit "in-house written" claims and a credible author byline.
How to verify: Ask the provider if their questions are reviewed by a CISA-credentialed editor. If the answer is fuzzy, walk away.
2. Coverage matched to the 2024 ISACA outline
The 2022 → 2024 outline changes were significant — cloud security got expanded in Domain 5, Domain 4 added more on cyber-resilience. A bank built before mid-2024 is missing 100+ items on current-syllabus topics.
How to verify: Search the bank's preview for terms like "zero-trust", "SASE", "cloud security posture management (CSPM)" — all 2024-addition keywords. Their presence proves a recent rewrite.
3. Explanation depth ≥ 150 words with ITAF / COBIT citations
This is the single most important quality marker. CISA questions test judgment, not recall — so the explanation has to teach you HOW to reason, not just declare the answer. Look for:
- An explanation of WHY the correct answer is correct, anchored in a specific standard
- Why each of the other 3 options is wrong (distractor analysis)
- Citations like "(ITAF 1004 Performance)", "(COBIT 2019 EDM01)", "(NIST 800-53 AC-2)"
If the bank ships "the correct answer is C" with no citations, you're paying for screenshots of a textbook.
4. Difficulty tagging that mirrors ISACA's distribution
ISACA's actual exam difficulty splits roughly: 30% easy / 50% medium / 20% hard. Your bank should be tagged the same way so your mocks reflect real conditions. Banks heavily skewed to "hard" exist because they read as more rigorous in marketing — they make your mock scores look bad and overprepare you on edge cases that don't appear on the real exam.
How to verify: Count the difficulty tags on a 100-question sample. If you can't see them, the bank doesn't tag.
5. Path to 3-4 full timed mocks (150 questions, 4-hour windows)
The mental endurance of a real CISA exam is the silent killer. Candidates who score 70% on 50-question mini-quizzes routinely score 55% on a 150-question timed mock — fatigue, decision drift, time pressure. Mocks are the only way to train for that.
A bank that doesn't ship at least 3 distinct 150-question mocks (separate from the practice pool) is a textbook with extra steps.
What this looks like in practice
The NexusGRC CISA bank ships 2,374 original questions, all written in-house and reviewed by a CISA + CGEIT-credentialed editorial team. Coverage matches the 2024 ISACA outline exactly (D5 is 27%, D4 is 23%, etc.). Average explanation length is 195 words, with ITAF and COBIT 2019 citations on every Domain 1-2 item.
[Open the CISA question bank →](/cisa-questions) — the first 5 questions are free with full AuditBot explanations, no signup required.
Three banks to avoid
We've benchmarked the major paid CISA banks against the checklist. The patterns to watch:
- Banks with sub-50-word explanations (cheap ones — usually <$200 lifetime). The price tells you the depth.
- Banks marketed as "1,500+ questions" without saying when they were last updated. Pre-2024 outline = compounding fatal gap.
- Banks where the preview only shows the easiest questions. If the marketing sample is all difficulty=easy, the paid pool will be too.
The provider name matters less than the five criteria. Run the checklist, pick whichever bank passes.
Frequently asked
Q: How many CISA practice questions should I do total? A: 1,500-1,800 across all 5 domains, distributed by domain weight. About 400 on Domain 5 alone.
Q: Is the official ISACA Review Questions QAE Manual enough? A: It's the gold standard for content quality but light on volume (~1,000 questions, no adaptive scheduling, no AI tutor). Best used as a complement to a fuller bank.
Q: Do I need to memorize ITAF Standards numbers? A: No — but you need to recognize them when they're cited. Reading 50+ explanations that quote ITAF will get you there passively.
Key takeaways
- 1Five non-negotiables: original questions, 2024 outline match, 150-word explanations with citations, difficulty tagging, 3+ full 150-Q mocks.
- 2Domain weights drive volume allocation. Domain 5 (27%) and Domain 4 (23%) together = half the exam.
- 3Run the checklist BEFORE paying. 10 minutes of due diligence saves 40+ hours of wasted study.
- 4Cheap banks (<$200) almost always fail criterion 3 (explanation depth). Save up and buy once.
Ready to verify? [Try 5 CISA questions from our bank](/cisa-questions) — see the explanation depth and ITAF citations before you decide.
See also: CISA vs CISM Comparison, How AI is Revolutionizing Cert Prep, Time Management on Exam Day.