C1000-198 Pass Rate 2026: What the Data Shows

What the Pass Rate Data Actually Shows

Candidates searching for the pass rate of the IBM Certified Db2 v12.1 Database Administrator - Professional exam (C1000-198, credential C9009700) usually want a single reassuring percentage. The honest answer is that no verified population pass rate appears in IBM's public materials for this exam. The study guide, the certification page, and the policy documents describe the exam's structure, scope, and rules, but they do not report how many candidates pass.

That absence matters. Any site quoting a precise pass percentage for this specific credential is either guessing, importing a figure from a different certification that happens to share the same code, or working from private survey data that cannot be audited. This article takes a different approach: it explains what the verifiable data does tell you, namely the passing threshold, the format, the domain weights, and the candidate profile IBM targets, and uses those facts to build a realistic picture of your odds.

If you want the broader difficulty picture alongside this analysis, the companion piece How Hard Is the C1000-198 Exam? Complete Difficulty Guide 2026 covers the qualitative side of what makes the exam demanding.

The Score Math: 47 of 66

The one hard number IBM does publish is the passing requirement: 47 correct answers out of 66 questions, with 90 minutes for the whole exam. Divide 47 by 66 and you get about 71%. That is a meaningful bar, but it is not a punishing one for someone who works with Db2 daily.

The practical reading: you have a cushion of 19 wrong answers. That sounds generous until you remember that multiple-response items and lab-style tasks can be all-or-nothing in how they are perceived by candidates, and a handful of misjudged questions in the heavy domains can erase the cushion quickly. For a deeper look at how the threshold works, see C1000-198 Passing Score 2026: Exactly What You Need to Pass.

Why IBM Does Not Publish a Pass Rate

IBM's Professional Certification Program publishes exam objectives, sample tests, and policies, but vendors of this kind generally do not release cohort pass statistics. There are several reasons a published number would be unreliable even if it existed:

• Self-selection: Candidates who sit a Professional-level Db2 exam are mostly working administrators who chose to attempt it, so any rate reflects a filtered population rather than the general IT workforce.
• Attempt mixing: A rate that blends first attempts with retakes tells you little about your own first-sitting odds.
• Version churn: Db2 v12.1 is a specific release; rates for earlier Db2 exams do not transfer.
• Absent scoring detail: IBM does not publish a per-item difficulty distribution, so aggregate rates cannot be decomposed.

So rather than hunting for a number that does not exist in verifiable form, treat the threshold, the weights, and the format as your real data. They are what you can actually plan against. If you are weighing whether the effort is justified, Is the C1000-198 Certification Worth It? Complete ROI Analysis 2026 pairs well with this piece.

Where Candidates Lose Points: Weight by Domain

The six official exam-objective sections carry approximate weights that total 100%. Because a pass requires roughly 71% overall, the distribution of those weights is the most useful predictor of where a failed attempt is likely to come from.

The item counts above are simple arithmetic from the published weights, which IBM describes as approximate, so treat them as planning estimates rather than guarantees.

Operating: the one-third problem

Monitoring: the second lever

Operating plus Monitoring accounts for 51% of the exam. A candidate who is strong in those two sections and merely adequate elsewhere is in a far better position than one with balanced but shallow knowledge. For a section-by-section walkthrough, see C1000-198 Exam Domains 2026: Complete Guide to All 6 Content Areas.

The smaller domains are not free points

Design and Architecture (9%) sounds light, and IBM's detailed study guide uses that exact name while the web summary says "Design and Architect" at the same weight. Either way it is only about six questions. But Security and Compliance (15%) and Business continuity (14%) together add up to 29%, which is nearly as much as Operating. Skipping them because they feel peripheral is a common route to falling a few questions short of 47.

How Item Formats Shape Outcomes

IBM states that the exam includes multiple-choice questions and performance-based lab tasks, and the official sample test also demonstrates multiple-response items, where more than one option must be selected. IBM does not publish a separate time allowance for the lab portion, so the 90 minutes covers everything.

Format affects pass probability in three concrete ways:

1. Multiple-response items punish partial knowledge. Knowing two of three correct options is not the same as knowing the topic. Prepare by understanding why each wrong option is wrong.
2. Performance-based tasks reward practice, not reading. If you have only studied from documentation, a lab task that asks you to perform or verify an administrative action will cost both points and time.
3. Time is shared. Spending too long on one lab task starves the remaining questions, so pacing across a 90-minute window matters.

Unauthorized reference materials are prohibited during the exam, so the lab-style work has to come from memory and experience, not from a lookup.

The Candidate Profile Behind Success

IBM describes the intended Professional-level candidate as having at least two years of practical, hands-on experience. This is target-candidate guidance rather than an enforced prerequisite, and only one exam is required for the credential. Still, it is the clearest signal in IBM's materials about who is expected to pass.

In practice, that means the people who fare best are those who already perform tasks like the ones tested: administering Db2 for LUW instances, handling installations and client connectivity, reviewing monitoring data, applying security controls, and maintaining recovery readiness. Someone coming from another database platform can absolutely pass, but needs to close the gap with lab time on Db2 v12.1 itself. Our C1000-198 Requirements 2026: Eligibility, Prerequisites & How to Qualify article details what is and is not formally required.

Employer demand tends to come from organizations running Db2 on Linux, UNIX, and Windows servers: enterprises with long-lived transactional systems, managed service providers, and consultancies that support IBM data platforms. Roles typically include database administrator, database operations engineer, and platform support specialist. For the employment side, see C1000-198 Jobs and, for compensation context without invented figures, C1000-198 Salary Guide 2026: Complete Earnings Analysis.

Retake Rules and What They Imply

IBM's policy shapes how you should think about failure. Under IBM Training's terms, you may attempt the same exam at most two times within any 30-day period, a retake is charged at the regular retake price, and retaking an exam you have already passed is prohibited.

Two consequences follow. First, a quick retake is permitted but not free, so rushing back in after a near miss without fixing the underlying domain gaps is poor economics. Second, because a passed exam cannot be retaken, there is no way to "improve" a passing result, so the goal is simply to clear 47 once. No current certification-exam fee was verified in the retrieved sources; the USD 30 figure in IBM's study guide applies to a separate assessment exam, not this one. Confirm the live price at booking, and see C1000-198 Certification Cost 2026: Complete Pricing Breakdown for how to think about total spend.

A Domain-Weighted Readiness Plan

Generic study schedules ignore the fact that this exam is lopsided. A plan built around the published weights looks different from an even split across six topics. Here is one sequencing approach that follows the domain percentages and puts hands-on practice where the lab-style tasks are most likely to appear.

Adjust the timing to your own experience. A working Db2 administrator may compress Operating and spend extra time on Security and Compliance or Business continuity, while someone newer to the platform should extend the lab-heavy weeks. The full method is laid out in C1000-198 Study Guide 2026: How to Pass on Your First Attempt, and a compact recap lives in C1000-198 Cheat Sheet 2026: One-Page Review of Must-Know Facts.

To test where you really stand against the 47-correct threshold, run timed sets on the C1000-198 practice test site and track your results by domain rather than by a single overall score. A strong overall number can hide a collapsed Monitoring or Security result that would cost you on exam day.

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