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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 9

Question 80

An expense receipt schema requires a tax registration number, but some legitimate merchant receipts do not include one. The model has started inventing registration numbers to satisfy the schema. What schema adjustment is most appropriate?

  1. Allow an explicit null or optional value for the registration number and validate that a non-null value is source-supported.
  2. Force a synthetic eight-digit value whenever the field is missing.
  3. Drop all schema validation so any fabricated field shape is accepted.
  4. Tell the model never to use null while keeping the registration field mandatory.

Explanation

Correct Answer

A:

Schema design should represent legitimate absence. Requiring invented content to populate a mandatory string defeats extraction quality.

Incorrect Answers

B:

A placeholder can be mistaken for real registration information. Missing source facts should remain visibly absent.

C:

Validation is still useful for required known fields. The fix is a precise optional attribute rather than an unstructured output.

D:

This further incentivizes unsupported values. The data contract should permit an honest missing result.

Question 81

A purchase order states 12 units at $18 each, but its printed total is $198. The extraction must preserve both source data and the inconsistency. Which output pattern is best?

  1. Overwrite the printed total with $216 and claim that the source contained that amount.
  2. Reduce the unit quantity until it multiplies to the printed total.
  3. Mark the receipt fully reconciled because both numbers are valid integers.
  4. Return calculated_total=216 and stated_total=198 with conflict_detected=true for validation or human review.

Explanation

Correct Answer

D:

Separately recording computed and stated values makes the arithmetic discrepancy explicit. It avoids silently repairing source facts into an invented invoice.

Incorrect Answers

A:

The calculated amount differs from the document. Rewriting the source value conceals the discrepancy that reviewers need to resolve.

B:

Changing the quantity invents a transaction not supported by the purchase order. The correct response is conflict reporting.

C:

Type validation does not establish semantic consistency. The mismatch is material to downstream accounting.

Question 82

A company needs routine enrichment by the next business afternoon but sends a weekly batch job only five minutes before the deadline. It assumes the batch service promises immediate completion. What scheduling policy is sound?

  1. Submit latency-tolerant batches with sufficient completion slack and use synchronous processing for genuinely blocking deadlines.
  2. Assume a batch always completes faster than a synchronous call because it is cheaper.
  3. Mark every submitted batch record delivered immediately after accepting the job.
  4. Use a batch for a user waiting on a live authorization decision with no fallback.

Explanation

Correct Answer

A:

The batch interface is asynchronous and lacks an interactive completion guarantee. Timing policy should reflect the actual service contract.

Incorrect Answers

B:

Lower cost does not imply lower latency. Queueing and asynchronous execution can extend completion time.

C:

Accepted work is not completed work. Status must reflect actual result availability.

D:

A blocking approval needs timely output. The asynchronous batch workflow does not provide the required response contract.

Question 83

An agent generated an infrastructure policy from a mistaken assumption about default outbound rules. An independent reviewer is available. What context should the reviewer receive?

  1. The creator’s full argument about why its own policy must be correct, but not the requirements.
  2. Only a success message and no generated files.
  3. A prompt instructing the reviewer to approve unless the generator asks for changes.
  4. The generated policy, actual requirements, source configuration and review criteria, without the creator’s justificatory conversation.

Explanation

Correct Answer

D:

A clean review can challenge hidden assumptions by comparing the artifact to requirements. Creator reasoning risks anchoring the reviewer to the original error.

Incorrect Answers

A:

This transmits the very assumption under scrutiny. The reviewer needs independent grounding in the desired controls.

B:

A reviewer cannot inspect a configuration it cannot see. The artifact and source contract are essential.

C:

That delegates verification to the potentially mistaken author. Independent evidence-based assessment is the purpose of the second instance.

Question 84

A CI agent reruns after each push and repeats the same review comment on a bug already logged in the pull request. The updated code also fixes one earlier issue. What should the next run know?

  1. Delete all historical findings and report everything on every commit.
  2. Never run another review after the first push.
  3. Automatically mark every earlier finding fixed without inspecting the new revision.
  4. Include prior finding identifiers and current diff context, instructing the reviewer to report only new or still-unresolved problems.

Explanation

Correct Answer

D:

The comparison prevents duplicate comments and acknowledges repaired findings. Machine-readable IDs make the behavior easier to verify.

Incorrect Answers

A:

Without history the assistant cannot distinguish reopened defects from existing comments. Noise increases without new value.

B:

New commits can introduce or repair defects. Continuous integration must reassess changed code while avoiding duplicates.

C:

A commit does not guarantee all defects were resolved. The review should verify current evidence.

Question 85

A document-processing agent frequently needs five tool turns, but its driver declares success after the fourth iteration regardless of the API stop reason. A compliance report is sometimes missing the last source. What is the correct control flow?

  1. Claim success at four turns even when the model requested another tool.
  2. Ignore stop_reason and inspect whether the assistant wrote a polite closing sentence.
  3. Suppress the final source from the task list so four turns appear sufficient.
  4. Treat an iteration limit as a separate safety budget and explicitly report incomplete work if tool_use remains; only end_turn supports ordinary completion.

Explanation

Correct Answer

D:

A resource guard should not masquerade as success. The driver must continue when allowed or record a truthful incomplete state.

Incorrect Answers

A:

The pending request indicates unfinished work. Closing with a false success marker would hide the missing source.

B:

Surface phrasing is not a protocol completion marker. The structured reason must control the loop.

C:

Changing requirements to match a cap undermines completeness. A budget overrun should be surfaced as incomplete.

Question 86

A multi-agent pipeline receives complete vendor documentation but the legal-source subagent reports only partial access. The coordinator must answer an executive question without inventing policy facts. Which aggregation pattern is correct?

  1. Report that no legal restrictions exist because no restriction was retrieved.
  2. Discard every verified finding from the other agents until legal access returns.
  3. Let the vendor subagent invent legal citations to complete the report.
  4. Combine verified vendor facts, label the legal gap and either re-delegate narrowly or present a conditional conclusion.

Explanation

Correct Answer

D:

The coordinator should distinguish complete and partial evidence by source. This prevents absent legal context from being treated as a negative finding.

Incorrect Answers

A:

An inaccessible source is not evidence of absence. That conclusion would be unsupported.

B:

Some evidence remains useful even with one missing source. A conditional result can identify its limits.

C:

A vendor-focused specialist lacks authority to fabricate regulations. Provenance and uncertainty must be preserved.

Question 87

An agent can draft a vendor payment change but requires supervisor signoff before submitting it. Prompts occasionally let it call submit_payment_change directly. Which implementation is safest?

  1. Keep submission behind an application-verified approval token or authorization gate that the model cannot bypass.
  2. Treat the model’s phrase “approved by management” as evidence of signoff.
  3. Submit first and allow a supervisor to revoke the change afterward.
  4. Allow submission whenever the request includes the word urgent.

Explanation

Correct Answer

A:

The tool must validate a real approval state before any payment destination changes. A textual instruction is only guidance and cannot prove authorization.

Incorrect Answers

B:

The assistant can generate that phrase without any supervisor action. Authorization must be checked externally.

C:

A changed destination could already cause loss. The requirement is preventive approval before submission.

D:

Urgency does not replace an approval record. A keyword-based exception would create a trivial bypass.

Question 88

An engineer asks an agent to diagnose intermittent authentication failures in an unfamiliar service. Early traces could point to caches, token clocks or network proxies. Which task strategy best fits this uncertainty?

  1. Assume authentication failures always originate from expired passwords.
  2. Start by deleting authentication cache data across production without examining logs.
  3. Start with a small system map, then generate diagnostic subtasks based on what the first observations reveal.
  4. Run a comprehensive fixed diagnostic checklist before looking at the initial trace evidence, even if early findings narrow the fault.

Explanation

Correct Answer

C:

Open-ended faults have uncertain causes. Adaptive decomposition avoids executing a fixed irrelevant sequence before learning which component failed.

Incorrect Answers

A:

One typical cause cannot explain every incident. The system must use observed data to choose hypotheses.

B:

Destructive action before diagnosis could create more outage. Scoped evidence collection should precede remediation.

D:

A fixed checklist is useful for known incidents, but its exhaustive execution can waste tool calls here. The unfamiliar authentication failure calls for new diagnostic branches chosen from validated observations.

Question 89

An operational MCP tool legitimately returns a service record containing a plaintext API token alongside nonsecret health fields. The assistant needs the health information but must not receive the token. What control is most direct?

  1. Publish the raw tool result to a shared issue tracker so reviewers can redact it later.
  2. Apply a post-tool transformation that removes secret fields while preserving validated health data and a redaction marker.
  3. Send the token to the model and add a prompt saying not to disclose it.
  4. Replace all health fields with random values to avoid exposing the token.

Explanation

Correct Answer

B:

Tool-result filtering narrows sensitive exposure before it enters model context. It is more reliable than asking the model not to repeat a secret it has already seen.

Incorrect Answers

A:

A public copy increases exposure before any cleanup. Sensitive data should be filtered before distribution.

C:

The secret would still enter the model context and could propagate into logs or subsequent messages. Prevention should happen at the data boundary.

D:

Falsifying operational data prevents accurate diagnosis. The adapter should remove only unnecessary sensitive fields.

Question 90

A travel-support agent handles a canceled ticket and a separate meal reimbursement. After compaction it merges both amounts and claims they share the same deadline. How should the application structure retained state?

  1. Assume the latest date encountered belongs to every issue.
  2. Store issue-specific facts with separate amounts, currencies, dates, source evidence and statuses, and include them in each follow-up.
  3. Keep one combined free-form paragraph without issue identifiers.
  4. Round all amounts to the nearest hundred to reduce context tokens.

Explanation

Correct Answer

B:

Multiple cases require explicit boundaries. Structured facts prevent a later summary from conflating independent obligations.

Incorrect Answers

A:

Recency does not establish which deadline applies. Each issue should retain its own sourced timeline.

C:

An undifferentiated summary can merge details from different claims. Separate keyed records preserve accountability.

D:

Financial precision matters to reimbursement. Rounding loses the source facts needed for correct decisions.

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