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C9007600 IBM Certified watsonx Mainframe Modernization Architect v1 – Associate Practice Exam
Exam Number: 4337 | Last updated April 17, 2026 | 358+ questions across 5 vendor-aligned objectives
Modernization architects who apply watsonx Code Assistant and companion capabilities to mainframe estates target the C9007600 credential. This associate-level exam validates your ability to assess COBOL, PL/I, and JCL portfolios, plan modernization journeys, and apply AI-assisted transformation to code, tests, and documentation. Candidates should understand mainframe architecture, modernization pattern taxonomy, and the boundaries of what AI can and cannot do to legacy code.
Snagging 25% of the exam, Portfolio Assessment covers code inventory, application-risk scoring, technical-debt analysis, and target-state definition. At 22%, Modernization Patterns covers replatform, replace, refactor, and rearchitect patterns with explicit decision criteria. A further 20% targets AI-Assisted Transformation, covering watsonx Code Assistant for code explanation, test generation, and COBOL-to-Java conversion.
Pulling in the final domains, Integration and Data accounts for 18% and spans MQ, CDC, data replication, and the hybrid-state period during modernization. Governance and Risk represents 15% and spans change-management practice, parallel-run design, and rollback planning. Expect scenario questions that force you to defend a modernization choice against both a technical and a business stakeholder view.
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Question #1 - Portfolio Assessment
A modernization architect at Grindleford Bank must scope a COBOL portfolio of thousands of programs.
Which first step fits?
A) Guess at the portfolio size without inventory
B) Run a code-inventory and risk-scoring pass with watsonx Code Assistant for Z to catalog programs, dependencies, complexity, and business criticality
C) Rewrite everything without any assessment
D) Declare the portfolio obsolete without review
Show solution
Correct answers: B – Explanation:
Inventory plus risk scoring via watsonx Code Assistant for Z is the assessment reference. Guessing, blind rewrites, and obsolescence-by-decree all fail assessment. Source: Check Source
Question #2 - Portfolio Assessment
A portfolio review at Waterford Mutual reveals high technical debt concentrated in 10% of programs.
Which portfolio-assessment practice fits?
A) Modernize only the low-debt programs and leave the hard ones forever
B) Modernize every program at once
C) Target the high-debt programs first with a mix of refactor and rearchitect patterns, leaving stable low-debt programs in their current state until later waves
D) Abandon modernization entirely
Show solution
Correct answers: C – Explanation:
Prioritization by technical debt with pattern-aligned waves is the assessment reference. All-at-once, avoid-the-hard-parts, and abandonment all fail portfolio strategy. Source: Check Source
Question #3 - Modernization Patterns
An architect at Silverbridge Insurance must choose between replatform and refactor for a batch COBOL application that is stable but uses expensive mainframe MIPS.
Which decision criterion fits the associate-level advisor?
A) Choose by coin flip
B) Always refactor because it is modern
C) Always replatform because it is cheap
D) If the business logic is stable and the goal is cost reduction, replatform to a lower-cost environment; if modernizing the codebase itself is the goal, refactor — choose based on stated objectives, not preference
Show solution
Correct answers: D – Explanation:
Objective-driven pattern selection is the modernization-pattern reference. Reflexive choices and coin flips all fail judgment. Source: Check Source
Question #4 - Modernization Patterns
A replace pattern at Kelfield Utilities proposes substituting a custom COBOL payroll with a SaaS product.
Which consideration fits?
A) Map the current capabilities to the SaaS product’s coverage, identify gaps, plan data migration, and plan the parallel-run and cutover — replace is rarely a drop-in
B) Assume the SaaS product is identical and switch overnight
C) Replace without data migration
D) Avoid replace entirely even when it fits
Show solution
Correct answers: A – Explanation:
Capability mapping, gap analysis, migration plan, and parallel-run is the replace-pattern reference. Overnight swaps, no migration, and avoidance all fail the pattern. Source: Check Source
Question #5 - AI-Assisted Transformation
A team at Forthbridge Trust wants to understand a complex COBOL program before touching it.
Which watsonx Code Assistant for Z capability fits?
A) Ask the program’s author — who retired in 1995
B) Rewrite the program first and understand it later
C) Delete the program and see what breaks
D) Use code explanation to generate natural-language summaries of the COBOL logic, then validate with subject matter experts
Show solution
Correct answers: D – Explanation:
AI-generated code explanation with SME validation is the reference. Rewrite-first, destructive discovery, and retired authors all fail understanding. Source: Check Source
Question #6 - AI-Assisted Transformation
A modernization team at Nethercote Financial wants to generate unit tests for a legacy COBOL program before refactoring it.
Which AI-assisted capability fits?
A) Use watsonx Code Assistant for Z to generate candidate unit tests from the COBOL program, review and adjust them, then use them as a safety net during refactoring
B) Refactor without any tests
C) Write tests only after refactoring
D) Assume the old code is correct and skip testing
Show solution
Correct answers: A – Explanation:
AI-generated unit tests reviewed and used as a safety net is the AI-assisted reference. No-tests, post-refactor tests, and assume-correctness all fail the pattern. Source: Check Source
Question #7 - AI-Assisted Transformation
A team at Tenterfield Bank considers COBOL-to-Java conversion with watsonx Code Assistant for Z.
Which realistic boundary applies?
A) AI-assisted conversion produces production-ready code that never needs review
B) AI-assisted conversion produces Java that must be reviewed, tested, and often refined by humans; it accelerates but does not replace modernization engineering
C) AI-assisted conversion is a complete replacement for engineering judgment
D) Avoid AI-assisted conversion and hand-port everything
Show solution
Correct answers: B – Explanation:
AI as accelerator with human review is the watsonx Code Assistant for Z boundary. Review-free, judgment-free, and hand-port-only all misunderstand the tool. Source: Check Source
Question #8 - Integration and Data
A modernization during a hybrid-state period at Barnaby Insurance must keep z/OS Db2 and a new cloud database synchronized.
Which modernization integration pattern keeps z/OS Db2 and the cloud database synchronized during the hybrid state?
A) Use Change Data Capture (CDC) to replicate data changes between z/OS Db2 and the cloud database during the hybrid-state period, with monitoring of lag and conflicts
B) Nightly CSV exports only
C) No replication and expect the systems to agree by chance
D) Manual entry of every change into both systems
Show solution
Correct answers: A – Explanation:
CDC is the reference pattern for hybrid-state data synchronization. CSV-only, no-replication, and manual entry all fail the requirement. Source: Check Source
Question #9 - Integration and Data
A modernization at Fenshill Bank must bridge a new microservice to a CICS transaction that will run unchanged for another year.
Which modernization integration pattern bridges the new microservice to the unchanged CICS transaction?
A) Copy the CICS code into the microservice
B) Have the microservice call CICS directly over raw TCP with no bridge
C) Expose the CICS transaction via a published API (e.g., z/OS Connect or equivalent) and have the microservice call it, with monitoring and rate limiting at the bridge
D) Avoid integration and re-enter data by hand
Show solution
Correct answers: C – Explanation:
Published-API bridging is the modernization-integration reference. Raw TCP, code-copy, and manual re-entry all fail the pattern. Source: Check Source
Question #10 - Governance and Risk
A modernization cutover at Rosslyn Bank must protect against regression during the first weeks in production.
Which modernization governance practice protects against regression during the cutover window?
A) Switch off the old system on day one with no parallel run
B) Run a parallel-run of old and new systems with reconciliation of outputs, and keep a clear rollback path ready for the cutover window
C) Skip reconciliation and hope
D) Have no rollback plan
Show solution
Correct answers: B – Explanation:
Parallel-run with reconciliation and rollback is the modernization governance reference. No-parallel, no-reconciliation, and no-rollback all fail risk practice. Source: Check Source
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Exam mode & learn mode · Score by objective · Updated April 17, 2026
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What the C9007600 watsonx mainframe v1 exam measures
- Assess and score code inventory, application risk, technical debt, and target-state definition to ground modernization plans in data rather than anecdote or vendor marketing
- Select and compare replatform, replace, refactor, and rearchitect patterns to match modernization approach to business driver, timeline, and risk appetite
- Leverage and verify watsonx Code Assistant for code explanation, test generation, and COBOL-to-Java conversion to accelerate modernization while catching AI-generated regressions before production
- Bridge and migrate MQ, change data capture, and data replication during hybrid-state periods to keep old and new systems coherent while workloads move across the estate
- Govern and roll back change-management practice, parallel-run design, and rollback plans to preserve business continuity if a modernization wave hits unexpected defects
How to prepare for this exam
- Review the official exam guide to understand every objective and domain weight before you begin studying
- Work through the relevant IBM Training learning path — ibm certified watsonx mainframe modernization architect v1 associate C9007600 — to cover vendor-authored material end-to-end
- Get hands-on inside IBM TechZone or a comparable sandbox so you can practice the console tasks, CLI commands, and APIs the exam expects
- Tackle a real-world project at your workplace, a volunteer role, or an open-source repository where the technology under test is actually in use
- Drill one exam objective at a time, starting with the highest-weighted domain and only moving on once you can teach it to someone else
- Study by objective in PowerKram learn mode, where every explanation links back to authoritative IBM documentation
- Switch to PowerKram exam mode to rehearse under timed conditions and confirm you consistently score above the pass mark
Career paths and salary outlook
Mainframe modernization architects are some of the best-paid consultants working in legacy transformation today:
- Mainframe Modernization Architect — $150,000–$200,000 per year, leading COBOL-to-Java and replatform programs (Glassdoor salary data)
- Legacy Modernization Consultant — $140,000–$190,000 per year, advising enterprises on mainframe transformation (Indeed salary data)
- Applied AI Architect (Modernization) — $145,000–$195,000 per year, integrating AI into legacy transformation work (Glassdoor salary data)
Official resources
Work through the official IBM Training learning path for this certification, which bundles videos, labs, and skill tasks aligned to every objective. The official exam page lists the full objective breakdown, prerequisite knowledge, and scheduling details.