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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 56

Question 550

A service uses hand-written handlers and generated protobuf clients. Agents are editing generated clients directly because the global rule says always patch files in place. How should conventions change?

  1. Put generation instructions on generated paths and ordinary scoped editing rules on owned handler code.
  2. Edit generated files only and ignore source definitions.
  3. Regenerate every unrelated package for a small handler fix.
  4. Remove all file-specific rules and rely on guessing.

Explanation

Correct Answer

A:

File ownership determines whether regeneration or direct editing is maintainable.

Incorrect Answers

B:

The next generator run can overwrite changes.

C:

A broad rebuild may be unnecessary and risky.

D:

Explicit scope reduces repeated editing mistakes.

Question 551

An organization is switching payment processors while subscription renewals continue. Both providers may receive the same retry during transition. What planning concern is essential?

  1. Discard old settlement IDs immediately after deployment.
  2. Define per-payment idempotency, settlement reconciliation, cutover sequencing and rollback before enabling the new provider.
  3. Send every payment to both providers to compare speed.
  4. Change the provider URL without testing receipt semantics.

Explanation

Correct Answer

B:

Duplicate charging and inconsistent states are foreseeable migration hazards.

Incorrect Answers

A:

Historical receipts are needed for reconciliation and refunds.

C:

Concurrent real charges create financial side effects.

D:

Different APIs may use distinct success and retry contracts.

Question 552

An agent updates an access-control rule to let a support role read tickets. A regression shows that role can now delete tickets. What refinement is appropriate?

  1. Restrict the rule to the read action, add a deny-delete fixture and rerun effective-permission tests.
  2. Treat the read test success as proof all permissions are correct.
  3. Remove the delete test because it contradicts the intended change.
  4. Grant the support role all actions for consistency.

Explanation

Correct Answer

A:

A precise negative test catches privilege expansion that positive read tests miss.

Incorrect Answers

B:

One allowed action does not prove prohibited actions remain blocked.

C:

The failed invariant is the reason to correct the policy.

D:

Broadening privileges worsens the defect.

Question 553

A prompt-injection detector flags any quoted text containing “ignore previous instructions” as active malicious behavior, including scholarly examples. What criterion improves accuracy?

  1. Evaluate whether untrusted text attempts to redirect the assistant’s current behavior, considering quotation context and actual authority.
  2. Block every document containing the phrase regardless of context.
  3. Treat every quotation as safe even when it tries to alter tool use.
  4. Ignore source provenance and decide from punctuation alone.

Explanation

Correct Answer

A:

Surface wording alone can appear in harmless analysis. Behavioral intent and context distinguish an attack attempt.

Incorrect Answers

B:

Overbroad matching creates needless false positives.

C:

Some quoted content may still be an active attack in its placement.

D:

Context and trust boundary are central to classification.

Question 554

A data-entry prompt guesses a customer tax ID when the last digits are blurred. Which contrasting examples help?

  1. Examples that omit any indication of where the ID came from.
  2. One fully readable ID with source span and one blurred ID marked uncertain rather than completed.
  3. Only examples of sharp scans with exact IDs.
  4. An example fabricating the missing digits to match formatting.

Explanation

Correct Answer

B:

A boundary example teaches evidence-based abstention for identity-sensitive fields.

Incorrect Answers

A:

Provenance helps verify sensitive identifiers.

C:

Those do not address illegibility.

D:

A plausible pattern does not identify the actual customer.

Question 555

A structured classifier returns confidence 140 and sometimes -10. The consumer expects a calibrated score from 0 to 1. What contract should be enforced?

  1. Store confidence as arbitrary prose such as very certain.
  2. A numeric field plus a deterministic 0-to-1 range validator, with documented calibration semantics and rejection of invalid scores.
  3. Accept any number because it is machine-readable.
  4. Convert every out-of-range score to 1 without noting the issue.

Explanation

Correct Answer

B:

The schema can require a number but the API decoder does not support numeric minimum/maximum constraints. An application validator enforces 0 through 1; calibration still needs measured evaluation.

Incorrect Answers

A:

An unbounded string loses the expected comparable contract.

C:

Numeric type alone does not make the value a valid probability.

D:

Silent saturation hides generation and calibration defects.

Question 556

An expense parser returns valid JSON but assigns a receipt to the wrong employee account. The source includes a correct employee ID. What should the repair loop do?

  1. Post to both employee accounts so one is right.
  2. Delete the source ID to remove the contradiction.
  3. Compare against the source ID, correct the account mapping, and revalidate affected fields before posting.
  4. Accept the record because it parses successfully.

Explanation

Correct Answer

C:

Syntactic correctness does not establish identity. Targeted source rechecking prevents misattributed expenses.

Incorrect Answers

A:

Duplicate financial records can cause inappropriate reimbursement.

B:

Deleting the employee identifier would hide the ownership mismatch and prevent reliable correction of the record.

D:

Schema validity cannot prove ownership.

Question 557

An asynchronous extraction service finishes all 100 items, but uploading the consolidated result file to storage fails. What status should the orchestrator record?

  1. Invent a storage download URL so users can proceed.
  2. Processing complete, delivery failed, with a safe retry of the storage step using the existing result artifact.
  3. Everything delivered because model processing finished.
  4. Delete all successful extraction outputs and rerun the batch.

Explanation

Correct Answer

B:

Separate stages prevent reprocessing completed work and preserve accurate user status.

Incorrect Answers

A:

A link must refer to an actual uploaded artifact.

C:

Computation does not prove the file reached its destination.

D:

The failure is downstream of completed processing.

Question 558

Two reviewers agree a multiple-choice answer is defensible, but neither checked whether another option is also correct. What should the editorial contract require?

  1. Accept reviewer agreement as proof all distractors are wrong.
  2. Remove the selection wording to avoid disagreement.
  3. A fresh solve of the stem and explicit evaluation of every alternative against the stated selection count.
  4. Check only the answer letter originally marked correct.

Explanation

Correct Answer

C:

A valid keyed option alone does not establish an unambiguous single- or multi-select item.

Incorrect Answers

A:

Shared oversight is possible when neither examined competing options.

B:

Ambiguous instructions worsen answer-card validity.

D:

An alternative key can invalidate an otherwise sound explanation.

Question 559

A synthesis agent processed 72 of 100 numbered documents before session interruption. The saved summary says “many completed” without IDs. What should a reliable checkpoint contain?

  1. Verified completed document IDs, pending IDs, source version and any unresolved error states.
  2. Only the number 72 with no source identity.
  3. A new random ordering for all 100 documents.
  4. A statement that the entire set was finished.

Explanation

Correct Answer

A:

An exact cursor prevents duplicate processing and invented coverage on resumption.

Incorrect Answers

B:

A count cannot identify which files require continuation.

C:

Order changes can misalign results and cause repeated work.

D:

An interrupted partial workflow is not complete.

Question 560

A repository requires a particular benchmark only when editing the search engine. Agents run it after every Markdown change. What improves the shared instruction?

  1. Remove the benchmark entirely.
  2. Run the expensive benchmark after every read-only action.
  3. Rely on the model to guess when the benchmark matters.
  4. Record the benchmark command with clear path and change-scope triggers in project memory.

Explanation

Correct Answer

D:

Conditional rules reduce unnecessary checks without skipping relevant performance validation.

Incorrect Answers

A:

The test remains important for search code.

B:

Unrelated operations do not justify the cost.

C:

Explicit scope is more reliable than inference.

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