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Exam Code: CCA-F

Exam Name: Claude Certified Architect - Foundations

Certification Provider: Anthropic

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Anthropic CCA-F Practice Test 23

Question 220

A financial agent prepares a transfer, but its PreToolUse policy hook cannot contact the authorization service. The user requests immediate execution. What should happen?

  1. Ask the model to estimate the probability that the user is authorized.
  2. Send the transfer to a randomly chosen account while waiting for policy recovery.
  3. Block the transfer until authorization can be verified, return a retryable policy-service failure, and preserve request context.
  4. Execute because the policy service did not explicitly deny it.

Explanation

Correct Answer

C:

An unavailable permission service does not grant authority. Fail-closed behavior protects financial side effects while permitting later safe recovery.

Incorrect Answers

A:

Model confidence cannot substitute for trusted authorization. The financial gate must remain enforced.

B:

An unrelated destination would create a much larger error. Unverified operations must be blocked.

D:

Absence of a response is not approval. Failing open bypasses a critical control.

Question 221

A developer has already edited a parser and needs to run a documented test command in a sandbox. What is the appropriate use of Claude Code’s shell tool?

  1. Run a privileged deployment command instead because it is faster than unit tests.
  2. Run the exact scoped test command via Bash in the project directory and inspect its exit status and output.
  3. Use Grep to execute the test binary and infer success from matching text.
  4. Use Write to replace the test suite with a success message.

Explanation

Correct Answer

B:

Bash is suitable for controlled command execution. Verification requires interpreting real results rather than assuming that invoking tests means they passed.

Incorrect Answers

A:

Deployment is not equivalent to testing and has unwanted side effects. Use the scoped test invocation.

C:

Grep searches text rather than reliably running test commands. The shell should execute the test process.

D:

Overwriting tests destroys verification. The existing suite should be run.

Question 222

A team uses a custom issue-triage skill. A revised version renames `severity` to `priority`, breaking an integration. Which practice reduces migration errors?

  1. Version the skill contract, document the field migration, and test dependent workflows before switching production users.
  2. Rename the field silently and expect integrations to infer it.
  3. Keep both fields with contradictory values without defining precedence.
  4. Disable the integration tests so the new skill can ship immediately.

Explanation

Correct Answer

A:

A schema change affects consumers beyond the prompt. Versioning and compatibility tests provide a safe transition.

Incorrect Answers

B:

Automated consumers use exact names and may fail. Contract changes require coordination.

C:

Ambiguous schemas can misroute incidents. Compatibility should be explicit.

D:

Suppressing failures hides broken contracts. Tests should guide rollout.

Question 223

A repository has language-specific documentation under `docs/fr/` and `docs/en/`. A rule says to preserve French spelling and punctuation. Where should it apply?

  1. Only to binary image files because they are near the docs folder.
  2. To no files, because localization conventions are optional.
  3. Only to the French documentation paths, with any common publishing rules remaining shared.
  4. Globally to every source and documentation file.

Explanation

Correct Answer

C:

Language conventions are path-specific. Conditional loading avoids unintentionally applying French style to English pages.

Incorrect Answers

A:

A textual writing rule does not apply to images. File type matters.

B:

Project localization requirements can be important. They should be loaded where relevant.

D:

Unscoped language rules would corrupt unrelated text and code comments. Scope should match content.

Question 224

A developer is asked to rename a public API field used by several mobile apps and partner integrations. There is no agreement on deprecation support. What should Claude Code do first?

  1. Map consumers, outline compatibility and phased deprecation options, and seek the required decision before changing the contract.
  2. Rename the field in one server file and merge without integration review.
  3. Ask the model to guess which consumers exist from its general knowledge.
  4. Delete API tests that expect the existing field.

Explanation

Correct Answer

A:

Public API changes have distributed consequences. Planning prevents an unannounced breaking deployment.

Incorrect Answers

B:

Hidden clients may still depend on the old field. A local edit is not sufficient evidence of compatibility.

C:

Current client inventory is required. Unverified guesses can omit partners.

D:

Removing tests hides compatibility obligations. The migration should address them.

Question 225

A generated test assumes that retries always happen three times. The service policy actually says stop after success and cap at three attempts. How should the test be revised?

  1. Delete the test and rely on manual intuition.
  2. Treat every failure as permanent and prohibit all retries.
  3. Cover early success, transient failure with retry, and the maximum-attempt boundary based on the documented policy.
  4. Force production code to retry three times even after a successful request.

Explanation

Correct Answer

C:

Tests must encode semantics rather than a constant loop count. Distinct cases exercise termination correctly.

Incorrect Answers

A:

Removing verification increases risk. A corrected test should preserve coverage.

B:

Some transient faults warrant bounded retry. The policy distinguishes them.

D:

Unnecessary retries can duplicate side effects. The test should reflect the true policy.

Question 226

A support assistant declares a company has no refund policy after one search returns zero matches. The index may be incomplete. What prompt condition improves accuracy?

  1. Say “there is no policy” whenever the first query yields zero results.
  2. Fabricate a standard policy to fill the gap.
  3. Drop the search query from the audit trail.
  4. Distinguish no matching retrieved evidence from a verified absence, and require coverage checks or an uncertainty statement.

Explanation

Correct Answer

D:

An empty search result may reflect indexing or query limits. The assistant should not infer nonexistence without evidence.

Incorrect Answers

A:

A single negative retrieval is not exhaustive. The statement overstates certainty.

B:

Inventing legal or commercial terms is unsafe. Missing evidence must be reported.

C:

Search provenance helps determine whether the lookup was adequate. Removing it impairs validation.

Question 227

A risk classifier labels most software release notes as vulnerable when it sees “memory.” It also misses actual memory-corruption defects. What examples should be added?

  1. Contrasting labeled examples of ordinary memory usage, confirmed memory-corruption flaws, and uncertain reports with decisive evidence.
  2. More examples that call every use of “memory” a critical vulnerability.
  3. Only very long positive examples with no counterexamples.
  4. Examples with hidden labels and no explanation of classification.

Explanation

Correct Answer

A:

Examples should teach the boundary between vocabulary and vulnerability. Varied cases reduce false positives and negatives.

Incorrect Answers

B:

This reinforces the existing error. The model needs meaningful negative cases.

C:

Length does not guarantee contrastive learning. Counterexamples matter.

D:

Ambiguous demonstrations may not teach the decision criteria. Clear labels and relevant cues are more useful.

Question 228

A structured evaluator returns `confidence=1.7` and downstream dashboards treat it as 170% probability. How should its schema be improved?

  1. Ignore confidence and declare every prediction certain.
  2. Require a numeric confidence value in the specified range, document its interpretation and validate before storage.
  3. Permit arbitrary values and clamp them silently to 1.0 in dashboards.
  4. Convert all confidence values to strings so no arithmetic is possible.

Explanation

Correct Answer

B:

Type and range checking prevent malformed metrics. Reliability still requires empirical calibration rather than treating any model score as proof.

Incorrect Answers

A:

Removing uncertainty does not improve decision quality. Calibration should be retained.

C:

Clamping hides upstream errors and does not preserve their cause. Validation should signal defects.

D:

Strings avoid one symptom but break numerical uses. A constrained number is appropriate.

Question 229

An extraction task fails due to a transient model server error. A retry begins, but its output is accidentally attached to another customer’s document. Which recovery design prevents this?

  1. Use a new random customer ID on each attempt.
  2. Append all retry outputs into one shared record in arrival order.
  3. Disable validation to reduce latency after a server error.
  4. Keep stable document and task IDs through retries, validate returned identity, and merge only matching results.

Explanation

Correct Answer

D:

Retry isolation and identity checks prevent cross-record contamination. A transient error should not change which source is processed.

Incorrect Answers

A:

Changing identity breaks mapping and can misattach output. Stable references are needed.

B:

Concurrent completions may interleave unpredictably. Identity-aware reconciliation is safer.

C:

A failure increases the need for careful recovery. Skipping validation risks corrupted outputs.

Question 230

A service processes thousands of independent invoices. A developer suggests placing several customers’ full invoices inside one shared conversation to save overhead. What is the main design concern?

  1. Keep per-customer inputs logically isolated and use a supported batch interface with distinct request IDs for independent jobs.
  2. A shared conversation guarantees that each invoice remains independent.
  3. All customers should share one output file without identifiers.
  4. Discard invoices that are too large without reporting failures.

Explanation

Correct Answer

A:

Batching need not imply a shared reasoning context. Isolation prevents customer data from influencing unrelated outputs.

Incorrect Answers

B:

Context is cumulative and can contaminate later responses. Independence must be maintained explicitly.

C:

Without IDs, results can be misattributed. Per-request reconciliation is essential.

D:

Completeness needs explicit per-item status. Silent omission is not an optimization.

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