C1000-187 IBM Certified watsonx Mainframe Modernization Architect v1 - Associate Practice Questions
Prepare for C1000-187 with more than an answer.
- Exam fee
- $200 USD
- Level
- Associate
- Valid for
- Not specified by IBM
Domains covered on the exam 7
- watsonx Code Assistant for Z Overview15%
- Architecture and Components17%
- Discover and Explain Existing Mainframe Applications17%
- Optimize Mainframe Applications7%
- Refactor Mainframe Applications into Modular Components18%
- Transform COBOL Applications into Java Modules15%
- Validate Transformed Code11%
- 1
Case Study: GlobalBank Modernization
GlobalBank uses a mainframe backend with CICS and Db2. They want to use watsonx Code Assistant for Z to modernize their 'Loan Origination' module.
Requirements:
- Source code must be scanned to identify dependencies.
- Developers work on Windows laptops.
- The backend analysis server runs on Linux.
- Strict firewall rules prevent direct internet access from the analysis server.
Based on these requirements, which configuration step is critical for the Application Discovery (ADDI) Build Server to function correctly?
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Correct answer: A
Since strict firewall rules prevent direct internet access, the ADDI Build Server (which typically checks licenses online) must be configured with an offline license mechanism or routed through an internal proxy to validate its license entitlement.
- 2
What is the minimum recommended Java version required to run the Z Validation Assistant component?
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Correct answer: C
The Z Validation Assistant requires Java 12 or a newer version to function correctly, leveraging newer language features for test execution.
- 3
When integrating watsonx Code Assistant for Z into a Hybrid Cloud architecture, which component is responsible for securely connecting the on-premises Z Open Editor to the IBM Cloud-hosted LLM service?
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Correct answer: B
The connection typically uses standard secure HTTPS (TLS 1.2 or higher) over the public internet or a private VPN/Direct Link to communicate with the IBM Cloud API endpoints.
- 4
A large financial institution is planning to modernize its core banking system running on IBM Z. The CIO has identified a critical shortage of COBOL skills and a need to accelerate feature delivery as primary drivers. Which modernization approach using watsonx Code Assistant for Z best addresses these specific business drivers while minimizing operational risk?
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Correct answer: B
Selective transformation addresses the skills gap by converting frequently modified (high-churn) code to Java, a language with a larger talent pool, while minimizing risk by keeping stable, low-churn core logic in COBOL. This leverages watsonx Code Assistant for Z's specific capabilities for incremental modernization.
- 5
A solutions architect is designing the deployment architecture for watsonx Code Assistant for Z. The client requires strict data sovereignty and cannot allow any intellectual property (source code) to leave their on-premises data center. Which Large Language Model (LLM) deployment option must be selected?
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Correct answer: C
To meet strict data sovereignty requirements where code cannot leave the data center, the on-premises deployment of the IBM Granite model is required. This ensures all inference processing happens locally within the client's firewall.
- 6
Which of the following components are core parts of the IBM watsonx Code Assistant for Z solution architecture? (Select TWO)
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Correct answer: A, C
ADDI is a core component used for the 'Understand' and 'Discovery' phases, creating the application inventory and dependency maps required before modernization.
The Z Validation Assistant is a key component for the 'Validate' phase, ensuring semantic equivalence between the original COBOL and the transformed Java code.
