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Exam Code: CCA-F

Exam Name: Claude Certified Architect - Foundations

Certification Provider: Anthropic

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"Claude Certified Architect - Foundations Exam", also known as CCA-F exam, is a Anthropic certification exam.

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Anthropic CCA-F Practice Test 17

Question 160

An analytics pipeline must fetch three independent datasets, normalize each, join them by an approved key, and create a report. Where is parallelism most useful?

  1. Generate the final report before any datasets are retrieved.
  2. Join unnormalized datasets using whichever column names happen to match.
  3. Let each data-source worker create a polished standalone summary and merge only the narrative results.
  4. Fetch and normalize independent datasets concurrently, then perform the join and final report after all required inputs pass validation.

Explanation

Correct Answer

D:

Independent data preparation can be parallelized. The join depends on validated standardized inputs and should wait for them.

Incorrect Answers

A:

A report without inputs would be speculative. The dependent task cannot precede its evidence.

B:

Uncontrolled schemas can cause false joins. Validation and normalization are prerequisites.

C:

Independent summaries can hide schema and join-key mismatches. The cross-source report requires normalized records with validated keys before aggregation; narrative-only merging cannot verify the joins.

Question 161

A user asks Claude Code to change a single timeout setting in a known configuration file without affecting other keys. Which tool strategy is the safest fit?

  1. Read the relevant lines, use Edit for the specific known setting, then inspect the diff and run a focused validation.
  2. Use Write to replace the whole configuration with a minimal file containing only the timeout.
  3. Use Bash to apply a global replacement of the same number throughout the repository.
  4. Skip reading the current file and assume the setting has not changed since documentation was written.

Explanation

Correct Answer

A:

A narrow replacement preserves unrelated configuration. Verification confirms both the intended value and limited scope.

Incorrect Answers

B:

Whole-file replacement can discard unrelated required settings. A surgical edit is more appropriate.

C:

The numeric value may appear in unrelated files. Broad replacement risks accidental changes.

D:

The real configuration is authoritative for the edit. Assumptions can target stale or missing lines.

Question 162

A team creates a repeatable `/review-release` workflow for staging and production. The original command always uses production paths, causing staging reviews to inspect wrong files. What should change?

  1. Define an explicit environment argument and validate allowed values before choosing configuration and artifact paths.
  2. Duplicate the production command unchanged and rename it for staging.
  3. Let the command infer environment from the current weekday.
  4. Give the command unrestricted filesystem write access so either environment works.

Explanation

Correct Answer

A:

Parameterized commands support reusable workflows without silently substituting production assumptions. Validation prevents unexpected file targets.

Incorrect Answers

B:

A name change does not update the hard-coded paths. The command would still inspect production.

C:

Calendar time does not establish deployment target. Explicit input is needed.

D:

Broader permissions do not fix target selection and can make misrouting more harmful.

Question 163

A monorepo contains `/ios/`, `/android/` and `/backend/`. An agent modifies Kotlin mobile tests only. What should its rule loading prefer?

  1. Load shared repository rules and the Android/Kotlin scoped instructions, excluding unrelated iOS-specific build conventions.
  2. Always load iOS-specific Xcode instructions for all mobile source edits.
  3. Ignore the common security test policy because only mobile files changed.
  4. Rename backend files into the Android directory to make rules load more consistently.

Explanation

Correct Answer

A:

Conditional rules keep instructions relevant to the changed paths. Shared requirements still apply regardless of platform.

Incorrect Answers

B:

Android work uses different tooling. Unrelated build commands can cause failures or confusion.

C:

Cross-project baseline rules remain relevant even when path-specific conventions apply.

D:

Changing source location is unrelated to scoped rule selection and may break the build.

Question 164

A user asks to “improve reliability” in a distributed service without specifying the allowed downtime or rollback budget. A proposed implementation would delete a live queue during migration. What should the agent do first?

  1. Plan the change, inspect dependencies, and resolve outage and data-retention constraints before performing destructive operations.
  2. Delete the queue immediately because the goal mentions reliability.
  3. Execute whichever migration command is shortest.
  4. Tell the user the queue was migrated before running tests.

Explanation

Correct Answer

A:

Ambiguous acceptance criteria and irreversible effects justify a planning phase. Execution should follow verified requirements and approved safeguards.

Incorrect Answers

B:

A high-level goal does not authorize data loss. Safety constraints require resolution.

C:

Command brevity is not a measure of safe change. The system needs impact assessment.

D:

Claiming success without execution and validation is misleading. Planning and checks must precede a completion statement.

Question 165

Claude Code is asked to optimize a slow query. Each successive edit saves a few milliseconds but intermittently breaks null handling. What is a good stopping rule?

  1. Continue editing indefinitely because any performance gain is worthwhile.
  2. Accept a faster query even if it produces incorrect null results.
  3. Delete null-related tests so benchmarks appear more favorable.
  4. Define performance and correctness acceptance tests, reject regressions, and stop when requirements are satisfied or improvement no longer justifies risk.

Explanation

Correct Answer

D:

Optimization should satisfy both speed and semantics. Measured tests bound the refinement loop and protect edge cases.

Incorrect Answers

A:

Unbounded iteration wastes effort and can introduce regressions. Defined acceptance criteria are essential.

B:

Incorrect output violates functional requirements. Performance cannot replace correctness.

C:

Removing failing tests hides regressions. The implementation should preserve expected behavior.

Question 166

An incident classifier marks every elevated error rate as a critical outage, even when service-level objectives are met and only a test endpoint is affected. Which prompt specification improves calibration?

  1. Ignore production scope and evaluate only whether the log contains “error”.
  2. Assume the missing outage duration is one hour.
  3. Define severity using user impact, production scope, duration, and SLO thresholds; require evidence and an unknown category when key facts are absent.
  4. Declare all error-rate increases critical to be conservative.

Explanation

Correct Answer

C:

Operational severity depends on context, not one metric. A rubric with evidence avoids inflated incidents.

Incorrect Answers

A:

Keyword matching misses the distinction between routine test failures and service degradation.

B:

Inventing timing changes severity decisions. Unknown data should remain explicit until verified.

D:

Blanket critical alerts overload responders and obscure actual user impact. Severity needs justified thresholds.

Question 167

A receipt parser sees three examples: a printed tax amount, a receipt with “tax exempt,” and an image where tax is obscured. Which few-shot labeling strategy is most useful?

  1. Map both tax-exempt and unreadable documents to zero.
  2. Discard every receipt that does not contain clearly printed tax.
  3. Use one positive example and assume all other layouts follow it.
  4. Label known amount, confirmed not applicable, and unreadable/unknown as separate outcomes with supporting evidence.

Explanation

Correct Answer

D:

Contrastive examples prevent the model from confusing missing information with a genuine zero or not-applicable value.

Incorrect Answers

A:

Unreadable text may hide a nonzero amount. Inventing zero contaminates financial records.

B:

A tax-exempt receipt can still be valid. Classification should distinguish legitimate absence from uncertainty.

C:

An isolated example does not teach the difference between absence, zero and failed OCR. More diverse cases are needed.

Question 168

A consent extractor must distinguish “yes,” “no,” and “not recorded.” Current JSON uses a nullable boolean and downstream code treats null as false. What contract best preserves the distinction?

  1. Treat missing records as granted because most customers consent.
  2. Omit the field entirely whenever consent is denied.
  3. Use a constrained status enum such as granted, denied and unknown with evidence, and enforce validation.
  4. Keep a nullable boolean and let each consumer choose its own meaning.

Explanation

Correct Answer

C:

An explicit tri-state contract prevents silent coercion of missing evidence into denial or permission. Evidence preserves traceability.

Incorrect Answers

A:

Prevalence cannot establish individual authorization. Unknown is not consent.

B:

Omission conflates denial with failed extraction and breaks downstream reporting. Explicit states are preferable.

D:

Inconsistent null interpretation creates policy errors. The contract must specify all states.

Question 169

An extraction model returns a contract expiration date earlier than its start date because it misread a handwritten year. What should a validation loop do?

  1. Reject the inconsistent date relation, revisit the cited source span, retry narrowly, and escalate if the text cannot be resolved.
  2. Swap the two dates automatically without checking the contract.
  3. Treat the earlier expiration as binding because the model returned it first.
  4. Remove the start date field to avoid the validation error.

Explanation

Correct Answer

A:

Cross-field constraints catch plausible-looking but impossible results. A targeted correction should remain tied to actual document evidence.

Incorrect Answers

B:

Reordering may create a plausible timeline but could also invert actual legal meaning. Source verification is necessary.

C:

Model order is not evidence. The contradictory chronology must be investigated.

D:

Dropping required fields hides the inconsistency. The agreed extraction contract should be retained.

Question 170

A batch extraction request includes short receipts and huge multi-page contracts. Large items repeatedly exceed context limits and fail the whole partition. Which design improves throughput?

  1. Give each request the same ID so outputs are easier to sort.
  2. Estimate per-item size, partition into bounded independent requests, and apply documented limits with traceable item IDs.
  3. Concatenate documents until the service rejects the batch, then retry identically.
  4. Discard large contracts silently while reporting the batch as complete.

Explanation

Correct Answer

B:

Size-aware partitioning avoids predictable overflows. Per-item status lets the caller resubmit only failed inputs.

Incorrect Answers

A:

Duplicate identifiers destroy per-item reconciliation. IDs must be stable and distinct.

C:

Repeating an oversized request cannot solve the capacity violation. The workload must be split.

D:

Dropping records creates an inaccurate completeness claim. Oversized items require separate handling.

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