C1000-187 Sample Questions & Answers
Refactoring mainframe applications into modular components carries the most weight, alongside the architecture and provisioning behind watsonx Code Assistant for Z, discovering and explaining mainframe code, optimization, transforming COBOL into Java, and validation.
Launch the full C1000-187 simulator →Showing 6 of 12 free samples.
- Question 1Beginner
watsonx Code Assistant for Z Overview · Modernization needs and business value
True or False: The IBM Granite model used in watsonx Code Assistant for Z is a general-purpose Large Language Model trained primarily on internet text and Wikipedia articles.
Show answer & explanation
Correct answer: B
False. The IBM Granite model for Z is a domain-specific model specifically trained on a massive dataset of enterprise COBOL, PL/I, Java, and JCL to understand mainframe context, syntax, and business logic patterns.
- Question 2Intermediate
watsonx Code Assistant for Z Overview · Modern application architecture patterns
In the context of the Strangler Fig pattern applied to mainframe modernization using watsonx Code Assistant for Z, what is the primary objective?
Show answer & explanation
Correct answer: B
The Strangler Fig pattern involves incrementally replacing specific pieces of functionality with new services (e.g., transformed Java modules) while the old system continues to operate, eventually replacing the entire legacy system or reducing it to a minimal core.
- Question 3Beginner
watsonx Code Assistant for Z Overview · Modernization needs and business value
When defining the 'Understand' phase in the watsonx Code Assistant for Z lifecycle, which activity is primarily performed?
Show answer & explanation
Correct answer: B
The 'Understand' phase leverages ADDI to discover assets, map dependencies, and analyze complexity to identify the best candidates for modernization.
- Question 4Intermediate
watsonx Code Assistant for Z Overview · Components and deployment options
Which statement accurately describes the role of Z Open Editor in the watsonx Code Assistant for Z ecosystem?
Show answer & explanation
Correct answer: B
Z Open Editor is a Visual Studio Code extension that serves as the primary IDE interface for developers to interact with WCA4Z features like 'Explain' and 'Transform' directly within their coding environment.
- Question 5Advanced
Architecture and Components · Installation and configuration
You are preparing the infrastructure to install the WCA4Z Refactoring Assistant. Which specific operating system and container engine combination is supported and required?
Show answer & explanation
Correct answer: C
The Refactoring Assistant specifically requires RHEL 8 (specifically 8.8+ recommended) and Podman 4.x for its containerized deployment. Docker is not the supported container engine for this component.
- Question 6Intermediate
Architecture and Components · Installation and configuration
A technical lead is configuring the Z Open Editor to communicate with the watsonx Code Assistant service. Which authentication mechanism is primarily used to secure this connection?
Show answer & explanation
Correct answer: B
The connection between Z Open Editor and the WCA service is authenticated using an API Key, which must be configured in the VS Code settings to authorize requests.
Ready for the real thing?
The full C1000-187 simulator has every exam-style question, timed mode, and instant scoring.