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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 6

Question 50

An incident extractor has a JSON field for cause categories. Unexpected causes appear that are not in the current enum. The system must remain schema-valid without misclassifying them as one of the known types. How should the schema change?

  1. Randomly map each unknown cause to the nearest existing enum without recording uncertainty.
  2. Silently drop incidents whose cause does not fit the original enum.
  3. Add an other category with a constrained free-text detail field, and allow explicit unclear values when source evidence is insufficient.
  4. Remove category validation entirely and accept arbitrary keys in every record.

Explanation

Correct Answer

C:

A controlled extension preserves valid schema values while retaining novel information. The model need not force unsupported classifications into existing categories.

Incorrect Answers

A:

A forced inaccurate mapping hides the actual observation. The workflow should represent novelty and uncertainty explicitly.

B:

Dropping valid data creates reporting blind spots. A documented other-plus-detail pattern preserves the event.

D:

Unrestricted shape complicates downstream processing and loses consistency. An extensible but explicit schema handles new cases predictably.

Question 51

A contract extractor is repeatedly asked for the governing-law jurisdiction, but the contract text does not contain one. Ten retries keep inventing different states. What should the validation loop do?

  1. Hide the field from the output and mark the entire contract fully validated.
  2. Return an explicit missing/unknown value and route the absent field to the appropriate reviewer or source request.
  3. Keep retrying with stronger wording until a plausible state is produced.
  4. Choose the jurisdiction of the supplier’s website as if it were written into the contract.

Explanation

Correct Answer

B:

No prompt rewrite can extract information the document lacks. The correct resolution is to preserve uncertainty rather than hallucinate a jurisdiction.

Incorrect Answers

A:

A missing required term is material information, not a reason to claim complete extraction. It should remain visible as an exception.

C:

Repeated prompting cannot create missing evidence. It encourages a fabricated answer that happens to match the format.

D:

External assumptions do not replace a contract clause. The extracted field must be grounded in the supplied document.

Question 52

An overnight batch completes 900 of 1,000 document classifications. The 100 failed requests include 40 oversized files. What is the most efficient traceable recovery strategy?

  1. Resubmit all 1,000 files with new random filenames and ignore previous results.
  2. Assume the first 100 entries in the submission list were the failures.
  3. Mark failed documents successful because most of the batch completed.
  4. Use each request’s custom_id to identify failures, adjust oversized inputs, and resubmit only the failed document jobs.

Explanation

Correct Answer

D:

Identifiers map asynchronous results to original files even when order differs. Targeted retries preserve successful work and avoid paying for unnecessary repeats.

Incorrect Answers

A:

That duplicates 900 successful requests and complicates accounting. A failure-only retry is more efficient and auditable.

B:

Batch responses are not guaranteed to match submission order. Reliable recovery depends on custom_id associations.

C:

A successful batch percentage does not imply every item passed. Unprocessed records remain genuinely incomplete.

Question 53

A change modifies three microservices. Each service passes its isolated contract checks, yet an authentication claim is renamed inconsistently across services. What review plan is most likely to detect the issue?

  1. Disable authentication claim validation until services converge naturally.
  2. Review each changed service locally and then run a separate integration pass tracing the shared authentication claim end to end.
  3. Rely only on the first service’s passing tests to approve the release.
  4. Ask one reviewer to reread all files without specifying shared data-flow or interface criteria.

Explanation

Correct Answer

B:

Local passes identify module-specific defects. An integration pass tests dependencies and naming contracts that individual service reviews cannot see.

Incorrect Answers

A:

Bypassing checks hides an active incompatibility and can weaken access control. The correct response is explicit cross-service verification.

C:

One service cannot establish that downstream consumers still accept its claims. The boundary spans multiple deployments.

D:

An undirected reread can miss the exact contract coupling. The integration pass should focus on cross-service inputs and outputs.

Question 54

A team runs Claude Code nightly to create pull-request comments. The previous version output arbitrary markdown, which causes malformed downstream API calls. What output contract should the CI pipeline enforce?

  1. Paste the entire terminal transcript into a public pull-request comment.
  2. Disable comment posting whenever the model includes a harmless explanatory sentence.
  3. Request structured JSON with an explicit schema for file, line, severity and message; validate before posting.
  4. Accept any text that contains a colon as if it were a valid findings object.

Explanation

Correct Answer

C:

A declared machine-readable contract reduces parsing ambiguity and lets the pipeline reject missing required fields. Non-interactive execution keeps the job unattended.

Incorrect Answers

A:

Raw logs can contain irrelevant or sensitive operational details and do not provide a stable finding schema. Structured fields are safer.

B:

The system should use explicit structured output instead of fragile prose heuristics. Banning incidental text does not solve schema design.

D:

Surface punctuation cannot establish structure or field types. The downstream API needs reliable values.

Question 55

An agent processes a 200-page policy pack and consistently overlooks a signed exception located in the middle. The correct final recommendation must retain the exception and its effective date. What context design is appropriate?

  1. Ask the model to guess the likely exception based on typical industry practice.
  2. Extract verified decision-critical exceptions into a dated facts register placed prominently in the synthesis input with source links.
  3. Repeat the entire packet twice and assume length alone improves recall.
  4. Omit the exception from the summary because it is not on the first or last page.

Explanation

Correct Answer

B:

Long inputs can underweight middle sections. A source-linked facts register preserves important requirements while allowing the full source to remain auditable.

Incorrect Answers

A:

A guessed exception has no authority. The source must supply the actual terms and date.

C:

Duplicating long context increases token consumption and does not guarantee attention to the missing exception. Targeted extraction is more dependable.

D:

Physical position in a document does not determine relevance. Signed exceptions can change the correct policy outcome.

Question 56

A support assistant searches by surname and receives three customers with the same name. A pending refund is linked to only one account. What should happen before accessing sensitive order details?

  1. Send account data for all three matches so the requester can choose.
  2. Request an approved additional identifier and disambiguate the customer through a verified lookup.
  3. Select the first database row because the order is deterministic.
  4. Use the customer with the largest purchase as the most likely match.

Explanation

Correct Answer

B:

A shared name does not establish identity. Clarification prevents disclosure or actions on the wrong account.

Incorrect Answers

A:

Disclosing private records to an unverified requester violates the need to establish the correct identity before sharing sensitive details.

C:

Row order has no relationship to the requester’s identity. Choosing arbitrarily can expose another customer’s information.

D:

Purchase value does not prove who contacted support. This heuristic creates avoidable misidentification risk.

Question 57

A researcher subagent receives a 403 access-denied response for a restricted report. Its retry loop treats the response like a temporary outage and suggests requesting administrator credentials. What is the sound propagation behavior?

  1. Retry with every available token until access is granted.
  2. Assume the report is empty because it could not be opened.
  3. Fabricate the report’s conclusions from its title and mark the source verified.
  4. Return a nonretryable permission error with the attempted resource, approved access scope and missing evidence noted to the coordinator.

Explanation

Correct Answer

D:

A permission denial is not a transient service failure. The coordinator can pursue authorized alternatives or report the coverage gap without seeking unapproved privileges.

Incorrect Answers

A:

Repeated credential attempts do not establish authorization and can violate organizational policy. The error category demands access control respect.

B:

Access failure does not show that no content exists. The difference must be preserved in the research record.

C:

A title cannot provide reliable findings. The agent must disclose that the content remained inaccessible.

Question 58

A long-running refactor approaches context limits. The team has verified module dependencies and a list of unresolved interface changes in a scratchpad. What should an agent do after compacting its context?

  1. Reload the concise verified dependency map and outstanding decisions, then inspect only files affected by subsequent changes.
  2. Assume compacting preserves every prior tool result byte-for-byte.
  3. Discard the scratchpad and rely on common naming conventions to reconstruct all modules.
  4. Paste all historical compiler output into every new prompt, regardless of relevance.

Explanation

Correct Answer

A:

Structured state reduces rediscovery and constrains the agent to observed architecture. Targeted rereads refresh details that may have become stale.

Incorrect Answers

B:

Compaction can omit details, especially long tool output. Critical verified facts need explicit persistence and reinjection.

C:

Generic patterns may not match this repository. The saved dependency evidence is the safer starting point.

D:

Unfiltered logs recreate context pressure. Selectively carry forward verified facts, outstanding problems and pointers.

Question 59

An extraction model routes every low-confidence address to reviewers. Leadership discovers that high-confidence extractions sometimes contain fabricated apartment numbers, but none of those records are audited. What evaluation change is required?

  1. Stop reviewing all low-confidence records and declare the model fully reliable.
  2. Treat a 99% self-reported confidence score as proof of a correct apartment number.
  3. Review only documents that already failed parsing because those are simplest to identify.
  4. Add reproducible stratified random audits of high-confidence outputs and calibrate confidence against labeled field-level correctness.

Explanation

Correct Answer

D:

High model confidence does not guarantee accuracy. Representative sampling can reveal novel confident failure modes and improve review thresholds.

Incorrect Answers

A:

Lowering review volume does not address confidently wrong fields. Both risk-based routing and calibration evidence remain necessary.

B:

Uncalibrated scores are not source evidence. The field must be checked against labeled or authoritative records.

C:

Syntax failures are not the same as semantic hallucination. The known issue occurs in well-formed high-confidence outputs.

Question 60

A logistics agent ends one response with stop_reason=tool_use after asking for a delivery lookup. An engineer labels the response “complete” because the natural-language preface sounds final. What runtime check should replace that heuristic?

  1. Rely on the number of tokens generated as a proxy for whether the workflow is complete.
  2. Branch on the structured stop_reason, run and return the requested tool results, and finish only after the model supplies a final end_turn.
  3. Stop whenever a response includes a period after a sentence.
  4. Send an empty tool result without performing the lookup and ask the model to guess the delivery status.

Explanation

Correct Answer

B:

The API stop reason controls the tool handshake. Surface wording can be misleading because an assistant may emit explanatory text before requesting a tool.

Incorrect Answers

A:

Token usage is a budgeting metric, not a task-completion signal. The structured protocol response should drive the loop.

C:

Punctuation conveys no protocol state. It cannot determine whether the model is waiting for a tool result.

D:

A fabricated empty result hides missing backend work and invites unsupported claims. The requested lookup should execute or return a truthful error.

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