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Claude Certified Architect - Foundations CCA-F Practice Test 18

Question 170

A Claude application is failing a realistic test: Claude Code lists the server but cannot discover its expected report tool. Which remedy directly addresses the defect without a broad redesign?

  1. Repair connection or server schema exposure and retry discovery before using data.
  2. Treat the server’s presence in the configuration list as proof that its report tool is callable, and proceed with summary generation.
  3. Regenerate the Claude Code prompt with the expected tool name while leaving a failed MCP handshake unresolved.
  4. Use a different metrics tool with similar output fields before testing whether the intended server has the required report capability.

Explanation

Correct Answer

A:

Tool registration and successful calls are operational conditions distinct from a configuration entry. In this failure, claude Code lists the server but cannot discover its expected report tool. The corrective action is to repair connection or server schema exposure and retry discovery before using data.

Incorrect Answers

B:

A visible config entry does not confirm transport or capability discovery. Verify the server connection and tool schema first.

C:

Prompt wording cannot expose a tool that the server did not advertise successfully. Repair connection or registration.

D:

Substitution may change source and permission scope. Diagnose the actual missing tool rather than silently switching evidence.

Question 171

A project lead describes the target workflow: A coding assistant needs to locate a configuration filename in a large repository, then inspect its content. The decisive requirement is: Pick minimal built-in tools rather than scan every file's body. What should be implemented?

  1. Use Glob to discover candidate paths and Read only relevant files.
  2. Use Write to reconstruct missing configurations before searching.
  3. Start by running Bash to print every repository file recursively.
  4. Use Edit with an empty replacement to discover file paths.

Explanation

Correct Answer

A:

Path discovery and content inspection are different tasks, and this sequence avoids unnecessary context.

Incorrect Answers

B:

Writing unrelated files is unnecessary and risky.

C:

It is noisier and less constrained than targeted path discovery.

D:

Edit is for targeted modification, not path enumeration.

Question 172

For a candidate implementation, A coding assistant needs to locate a configuration filename in a large repository, then inspect its content. It must accomplish: Pick minimal built-in tools rather than scan every file's body. Which TWO safeguards or validation actions best support a safe implementation of the requirement? Select TWO answers.

  1. Open every repository file to find the configuration name and treat broad access as a substitute for path search.
  2. Respect repository permissions and avoid relying on filename alone to authorize access.
  3. Match the first filename fragment and edit that file before confirming its directory or content.
  4. Count files in the repository and infer that a smaller total guarantees the built-in filename search is scoped correctly.
  5. Supply nested matching and nonmatching paths and verify only candidates are read.

Explanation

Correct Answers

B:

Finding a configuration path with Glob establishes where to look; it does not confirm the contents or whether they were tampered with. Read and validate the relevant entries. To verify that boundary in the acceptance exercise, respect repository permissions and avoid relying on filename alone to authorize access.

E:

Path discovery and content inspection are different tasks, and this sequence avoids unnecessary context. Exercising this runtime path would detect the specific fault: it skipped path filtering and fed the entire repository into context.

Incorrect Answers

A:

Scanning all file contents wastes context and broadens access beyond the filename search requirement.

C:

A filename collision does not prove the selected path is the intended configuration source.

D:

File counts do not validate nested matching or content reads on the identified candidates.

Question 173

A Claude system is not behaving as designed: The assistant reads thousands of unrelated files just to find one matching config name. It was meant to achieve: Pick minimal built-in tools rather than scan every file's body. Which diagnosis deserves priority?

  1. The agent used filename filtering but opened a stale, same-named config file in the wrong package.
  2. The search returned the correct candidate paths, but a permission error prevented reading the chosen file.
  3. The requested filename is absent, and the agent accurately reports no match after a scoped Glob search.
  4. It skipped path filtering and fed the entire repository into context.

Explanation

Correct Answer

D:

This diagnosis explains the observed pilot behavior: The assistant reads thousands of unrelated files just to find one matching config name. The architectural fault is it skipped path filtering and fed the entire repository into context. A targeted correction is: Use Glob for paths, then Read for a short verified candidate list.

Incorrect Answers

A:

A wrong candidate after targeted path discovery is distinct from reading thousands of unrelated files.

B:

An access denial is not a cause of indiscriminate repository-wide content loading.

C:

A bounded no-match outcome is not the reported uncontrolled context expansion.

Question 174

A design review needs an accurate risk statement for this goal: Pick minimal built-in tools rather than scan every file's body. Which statement avoids overclaiming?

  1. Recreate a missing configuration file using a guessed Write operation before confirming whether the file exists elsewhere.
  2. Treat a filename matched by Glob as proof the configuration content is correct without opening the file.
  3. Accept the built-in-tool selection plan without checking that Glob found the right file and Read inspected its actual contents.
  4. A correct path match does not prove that the file's content is trustworthy.

Explanation

Correct Answer

D:

Finding a configuration path with Glob establishes where to look; it does not confirm the contents or whether they were tampered with. Read and validate the relevant entries.

Incorrect Answers

A:

Writing unrelated files is unnecessary and risky. Alternative approaches do not justify ignoring realistic failure conditions.

B:

A path match identifies a candidate file, not its settings or integrity. Read the relevant content and verify it before giving configuration advice.

C:

A design document cannot show actual enforcement, incomplete results or failures. The case specifically observed: The assistant reads thousands of unrelated files just to find one matching config name.

Question 175

A product engineer discovers: The assistant reads thousands of unrelated files just to find one matching config name. Which change has the strongest causal link to this problem?

  1. Use a recursive content search over the entire repository for the config basename before filtering candidate paths.
  2. Use Glob for paths, then Read for a short verified candidate list.
  3. Create a new configuration index by rewriting all detected config files before narrowing the search.
  4. Open only root-level configuration files and assume their contents also represent any same-named nested configs.

Explanation

Correct Answer

B:

Path discovery and content inspection are different tasks, and this sequence avoids unnecessary context. In this failure, the assistant reads thousands of unrelated files just to find one matching config name. The corrective action is to use Glob for paths, then Read for a short verified candidate list.

Incorrect Answers

A:

A broad content scan can read many irrelevant files and repeat the original inefficiency. Discover likely paths first, then open a small, verified set of candidates.

C:

Rewriting files to discover their locations introduces needless mutations and risk. Path search and selective reads can identify matching files without changing repository state.

D:

A monorepo may contain distinct package-specific config files. Ignoring nested path candidates can miss the target; Glob followed by targeted Read is the appropriate discovery flow.

Question 176

In a proposed Claude-based system, A repository assistant must update one deprecated function call after finding its occurrences. The team needs to achieve the following: Search usage and apply a targeted change without rewriting unrelated files. Which decision fits best?

  1. Ask the model to remember all locations instead of searching.
  2. Use Glob to search for a function body in arbitrary files.
  3. Use Grep for content occurrences, Read surrounding context, then Edit only intended locations.
  4. Replace every matching byte sequence with a new entire file via Write.

Explanation

Correct Answer

C:

Grep locates textual use; contextual reading and a precise edit reduce accidental broad substitutions.

Incorrect Answers

A:

Unverified recall can miss references and create incomplete migrations.

B:

Glob primarily discovers paths, not content expressions.

D:

A broad rewrite risks unrelated changes and lost formatting.

Question 177

The team claims its design satisfies: Search usage and apply a targeted change without rewriting unrelated files. The environment is: A repository assistant must update one deprecated function call after finding its occurrences. Which TWO safeguards or validation actions best support a safe implementation of the requirement? Select TWO answers.

  1. Replace every matching token in the repository without checking whether vendored or generated files are excluded.
  2. Search again for remaining deprecated calls and run the affected unit tests.
  3. Check the modified file count but never execute tests for callers that depend on the deprecated function.
  4. Confirm that generated or vendored files should actually be edited before writing.
  5. Accept that a symbol appears in search results without confirming all affected call sites were repaired.

Explanation

Correct Answers

B:

Grep locates textual use; contextual reading and a precise edit reduce accidental broad substitutions. Exercising this runtime path would detect the specific fault: the implementation edited a guessed location without searching the full required scope.

D:

A scoped text replacement can fix one function declaration while leaving callers or integration contracts incompatible. Search usages and run targeted dependent tests. To verify that boundary in the acceptance exercise, confirm that generated or vendored files should actually be edited before writing.

Incorrect Answers

A:

Blind global replacement can damage generated sources and unrelated references.

C:

A limited diff is not evidence that behavior or API compatibility is preserved.

E:

Discovery is not verified elimination of deprecated usage across relevant callers.

Question 178

The operational trace shows: The change passes in one file but other deprecated call sites remain. Given the requirement: Search usage and apply a targeted change without rewriting unrelated files. What is the most credible explanation?

  1. The symbol search covered all relevant callers but a particular unit test failed because of behavior drift.
  2. All deprecated calls were changed, but a cached build artifact still references the old version.
  3. The implementation edited a guessed location without searching the full required scope.
  4. The change was restricted to a known module after the user explicitly scoped it and excluded other packages.

Explanation

Correct Answer

C:

This diagnosis explains the observed pilot behavior: The change passes in one file but other deprecated call sites remain. The architectural fault is the implementation edited a guessed location without searching the full required scope. A targeted correction is: Grep the deprecated symbol, inspect each relevant context and apply scoped edits.

Incorrect Answers

A:

A post-search behavioral regression differs from never locating the other deprecated call sites.

B:

Build-cache staleness is distinct from confirmed unmodified usage in source files.

D:

An intentionally limited edit would not promise that deprecated usage across the required scope was eliminated.

Question 179

The deployment proposal says it addresses: Search usage and apply a targeted change without rewriting unrelated files. Which boundary must not be hidden from the customer?

  1. Text replacement alone cannot establish semantic compatibility of a changed function signature.
  2. Run one narrow unit test for the renamed function and assume callers in other packages will remain compatible.
  3. Use filename-oriented Glob matching to infer function-body usages rather than searching code content and reviewing callers.
  4. Use Claude’s final summary of the patch as confirmation that every caller was updated, without checking the repository diff.

Explanation

Correct Answer

A:

A scoped text replacement can fix one function declaration while leaving callers or integration contracts incompatible. Search usages and run targeted dependent tests.

Incorrect Answers

B:

A local passing test cannot establish that all references or integration contracts are updated. Search usages and check dependent packages after the change.

C:

Glob primarily discovers paths, not content expressions. That alternative does not close the stated reliability or safety gap.

D:

A convincing summary can omit affected modules. Verify actual code references, compilation and target tests against the changed signature.

Question 180

The rollout cannot proceed because: The change passes in one file but other deprecated call sites remain. What is the most appropriate focused correction?

  1. Fix only the first deprecated symbol reference that caused the build error and treat the remaining package references as harmless.
  2. Run a global replacement of matching text without reviewing whether each call site uses compatible arguments.
  3. Remove the deprecated function definition and trust build warnings to identify remaining callers after deployment.
  4. Grep the deprecated symbol, inspect each relevant context and apply scoped edits.

Explanation

Correct Answer

D:

Grep locates textual use; contextual reading and a precise edit reduce accidental broad substitutions. In this failure, the change passes in one file but other deprecated call sites remain. The corrective action is to grep the deprecated symbol, inspect each relevant context and apply scoped edits.

Incorrect Answers

A:

The reported failure is incomplete migration across callers. Search all relevant usages and verify dependent packages.

B:

Blind replacement can damage unrelated identifiers and miss semantic incompatibilities. Inspect each use before editing.

C:

Removing the definition before mapping usages risks runtime breakage. Locate call sites and migrate them in a controlled sequence.

Claude Certified Architect - Foundations (CCA-F) Practice Tests

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