Question 280 A repository contains 1,500 files, and a model is losing the relevant symbol after reading massive generated bundles. What should it exclude? All code directly defining the target symbol. All tests even when debugging a failing test. The current git diff because it is newer. Generated dependencies and unrelated build artifacts unless the task specifically requires them. Explanation Correct Answer D:Filtering noise preserves budget for authoritative source code. Incorrect Answers A:That removes the core task evidence. B:Tests can be essential evidence. C:The diff often identifies the actual changed behavior.
Question 281 A data-extraction system combines schema-constrained output with a tool that writes records. What must remain distinct? A parser should automatically publish any valid object. All generated fields should be trusted as source facts. Output formatting and network transport should always be treated as approvals. Output-shape validation and authorization to execute the write. Explanation Correct Answer D:A valid object does not by itself grant permission for an external side effect. Incorrect Answers A:Publication is a separate governed action. B:Schema constraints do not guarantee factual accuracy. C:Technical validity is not a business consent signal.
Question 282 A requested refactor spans multiple modules, but required tests and backout steps are unclear. What should happen before direct edits? Turn off CI while refactoring. Clarify or derive the required change plan and validation boundaries first. Assume successful compilation alone proves business correctness. Perform wholesale changes to discover which tests exist later. Explanation Correct Answer B:Without a test and rollback strategy, a broad refactor is hard to control. Incorrect Answers A:Removing feedback worsens control of the change. C:Compile success does not validate all behavior. D:Editing before understanding validation increases risk.
Question 283 A coordinator wants to replace a failed specialized worker mid-run. What state is necessary for the replacement to continue safely? The exact remaining objective, completed evidence, and unresolved exceptions. Only a transcript of the worker’s friendly greeting. Unlimited permission to inspect unrelated projects. A claim that the failed worker fully completed its job. Explanation Correct Answer A:A replacement can resume only when it knows what was done and what is missing. Incorrect Answers B:A greeting contains no task state. C:Broad access does not reconstruct the required state. D:False completion masks gaps and prevents recovery.
Question 284 An assistant needs a recursive listing of JavaScript files and their imports. Which pair of built-ins addresses both levels? Glob for JavaScript paths, then Grep or Read to inspect import statements. Write empty JavaScript files and infer their imports. Run a production deployment to list imports. Edit all import statements before reviewing them. Explanation Correct Answer A:Filename discovery and content inspection are different operations. Incorrect Answers B:New files do not describe existing dependencies. C:Deployment is unnecessary for static exploration. D:Premature mutation changes the evidence.
Question 285 An extraction pipeline uses a strict schema, but the source document has no contract date. How should a nullable date field be handled? Remove the field without regard to the required interface. Return an explicit null or documented missing state permitted by the schema. Substitute today’s date as if it appeared in the contract. Guess a date based on surrounding documents. Explanation Correct Answer B:Absence should be represented honestly and consistently. Incorrect Answers A:The contract may require a stable nullable key. C:That would create false business data. D:The missing source value cannot be asserted.
Question 286 A deployment skill says “review first” but also includes a command that may deploy without approval. What should guard execution? A default to maximum permissions for convenience. A real approval and allowed-tools boundary before deployment, in addition to the skill instructions. The existence of a slash-command name. A friendly final message saying changes were safe. Explanation Correct Answer B:Reusable instructions do not by themselves authorize high-impact side effects. Incorrect Answers A:Overprivilege increases production risk. C:Invocation syntax does not grant deployment permission. D:Post-action claims cannot prevent an unauthorized deploy.
Question 287 A team maintains a production agent session and a debugging branch. Which TWO controls protect the production trajectory? Give both branches unrestricted write access to the same production tables. Treat changes in either branch as automatically approved for both. Keep tool side effects isolated or require approval before the debugging branch writes production. Delete the stable session before creating the debug branch. Create a fork with an explicit relationship to the stable checkpoint. Explanation Correct Answers C:A forked conversation alone does not sandbox external systems. E:The branch can be compared or discarded without rewriting the production conversation. Incorrect Answers A:Shared side effects can still collide despite separate contexts. B:Branch separation is intended to preserve independent validation. D:Removing the baseline defeats safe comparison and recovery.
Question 288 A coding task requires locating one utility function, understanding it, and then running tests after an approved edit. Which TWO tool choices are essential? Use Bash to upload proprietary code to an unrelated public server. Use Write to replace the entire repository without inspection. Use Edit for the targeted change and Bash for test execution. Use Glob to assert tests passed without running them. Use Grep for symbol references and Read for the relevant code context. Explanation Correct Answers C:The mutation and subsequent verification require appropriate distinct capabilities. E:Search and inspection ground the proposed change in the actual repository. Incorrect Answers A:The requested local edit does not authorize external disclosure. B:A wholesale overwrite would destroy unrelated code. D:File discovery cannot validate runtime behavior.
Question 289 A multi-language assistant is trained by examples containing English messages only and fails on Arabic service requests. What is the appropriate repair? Use more English copies of the same example. Add language-representative examples with the same semantic labels and output format. Remove multilingual requirements from the product without approval. Translate all unknown messages into a fixed guessed meaning. Explanation Correct Answer B:The task requires demonstrating classification despite different input languages. Incorrect Answers A:The missing language patterns remain absent. C:That changes the user’s objective rather than solving the failure. D:Guessing is not robust translation or classification.
Question 290 A codebase has several modules named `client.py`, and the agent proposes editing one based on an ambiguous search hit. What is required? Assume all modules with the same basename are identical. Edit the first match returned by a search tool. Resolve the complete file path and inspect imports and callers to identify the actual module. Rewrite every matching module to be safe. Explanation Correct Answer C:Same-named files can serve different services and scopes. Incorrect Answers A:Identical names do not imply identical behavior. B:Search order does not determine ownership. D:That expands change scope unpredictably.
