IBM Exam C1000-138 Topic 3 Question 18 Discussion

To enable step debugging on a GatewayScript policy in IBM API Connect v10.0.3, a developer must add a debugger; statement within the GatewayScript code. This statement serves as a breakpoint that will pause execution, allowing the developer to step through the code to identify and resolve issues.

Other options are incorrect:

Option B and D ('Enable step debug in the Test tab' and 'Enable debug checkbox in Assemble') do not enable the step debugger in GatewayScript.

Option C ('Click the Trace in the Test tab') allows tracing but not step debugging.

IBM API Connect v10.0.3 Documentation: Debugging GatewayScript Policies