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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 53

Question 520

A monorepo has separate frontend and backend packages. A security header rule applies to backend HTTP handlers only. How should Claude Code select it?

  1. Apply the rule to every front-end stylesheet.
  2. Remove the header rule because frontend code exists.
  3. Guess paths from old chat history without checking repository structure.
  4. Use a path pattern matching backend HTTP handlers and test the resulting coverage.

Explanation

Correct Answer

D:

Scoped rule discovery prevents unrelated frontend components from receiving handler-specific instructions.

Incorrect Answers

A:

Stylesheets do not implement server response headers.

B:

A legitimate backend security requirement remains necessary.

C:

Actual file locations should govern applicability.

Question 521

A service account key is shared by nightly integrations. The user wants immediate rotation but no job outages. Which approach best balances constraints?

  1. Leave the old key permanently active after issuing the new one.
  2. Inventory dependents, stage an overlapping credential if supported, update consumers, validate, then revoke the old key.
  3. Revoke the current key before identifying dependent jobs.
  4. Copy the key into every chat for easier discovery.

Explanation

Correct Answer

B:

A coordinated transition preserves availability while closing the compromised or aging credential.

Incorrect Answers

A:

That fails to complete rotation and preserves risk.

C:

That may stop production integrations.

D:

A credential shared in chat may be copied into logs and additional contexts, undermining safe rotation.

Question 522

A model rewrites an asynchronous cache and unit tests pass once, but concurrent reads intermittently see stale state. What refinement should follow?

  1. Disable the cache test when it fails.
  2. Increase unrelated HTTP timeouts until the race is harder to observe.
  3. Create a deterministic concurrency test, inspect state publication and rerun the relevant race regression.
  4. Call the rewrite correct because one run passed.

Explanation

Correct Answer

C:

Intermittent timing defects need targeted stress and ordering checks, not a prose declaration of success.

Incorrect Answers

A:

Deleting an intermittent race test conceals the reproducible concurrency failure instead of correcting shared-state ordering.

B:

Timing changes may mask but do not correct state consistency.

D:

One successful execution cannot disprove a known intermittent race.

Question 523

An anomaly detector assigns critical severity to every event with an unusual user-agent string. What prompt rubric would improve quality?

  1. First require evidence the event is actually suspicious, then assess impact using privilege, reachability and corroboration.
  2. Treat any uncommon browser as an account takeover.
  3. Compute severity from the length of the user-agent string.
  4. Suppress every anomaly to reduce noisy alerts.

Explanation

Correct Answer

A:

Detection confidence and severity are separate judgments; a rare string is not inherently a critical incident.

Incorrect Answers

B:

Legitimate clients can have unusual identifiers.

C:

Text length does not measure malicious impact.

D:

Blanket suppression can hide genuine incidents.

Question 524

An extraction assistant treats tool timeouts as no matching records. What example pattern directly addresses the confusion?

  1. One completed zero-match search and one timed-out search labeled as distinct structured outcomes.
  2. Only examples containing many successful matches.
  3. Examples that invent results after a timeout.
  4. Remove error handling from the prompt.

Explanation

Correct Answer

A:

Contrasts teach that absence of a response is not evidence of absence.

Incorrect Answers

B:

These do not cover either negative case.

C:

Fabrication normalizes the underlying mistake.

D:

The model still needs a faithful failure category.

Question 525

A citation schema accepts a start offset greater than its end offset. Downstream highlighting fails. What should the contract enforce?

  1. Remove citations from all findings.
  2. Integer offsets with start less than end and bounds checked against the referenced source.
  3. Any two strings because the model usually knows the right order.
  4. Swap offsets silently without checking the cited source.

Explanation

Correct Answer

B:

Cross-field validation is needed beyond simple number types to produce usable evidence spans.

Incorrect Answers

A:

That sacrifices traceability rather than repairing range validation.

C:

Unconstrained text cannot enforce valid range geometry.

D:

Automatic correction may point to unrelated text.

Question 526

A contract extractor produces ten valid fields and one invalid renewal date. An unrestricted retry rewrites every field. How should it be constrained?

  1. Replace all fields with generated defaults to ensure uniformity.
  2. Ignore the invalid date because most fields passed.
  3. Change document ID to make retry results easier to distinguish.
  4. Retry the defective date from the original clause while preserving the ten already verified values.

Explanation

Correct Answer

D:

Targeted correction minimizes regressions and avoids needless source reprocessing.

Incorrect Answers

A:

This destroys previously grounded data.

B:

A required renewal date is still unresolved.

C:

Changing identity can break reconciliation.

Question 527

A nightly batch summarizes sales records. A developer adds a tool that can notify customers immediately, though the user requested reports only. What should its execution contract do?

  1. Keep the batch read-only and require a separate authorized notification workflow.
  2. Send messages automatically whenever a report row looks interesting.
  3. Suppress all batch logging to hide notification behavior.
  4. Assume report completion means customer notification succeeded.

Explanation

Correct Answer

A:

Background summarization does not imply permission to contact customers.

Incorrect Answers

B:

That introduces an unapproved external side effect.

C:

Concealment does not create consent.

D:

Analysis and delivery are distinct operations.

Question 528

A coding model claims a patch eliminates SQL injection, but its change only adds frontend input filtering. What should a substantive verifier check?

  1. Whether server-side query construction actually binds untrusted values and closes the exploitable code path.
  2. Accept the claim because the patch author described it confidently.
  3. Approve if the frontend UI looks correct.
  4. Ignore the database query because the change was in JavaScript.

Explanation

Correct Answer

A:

A patch explanation is not evidence of remediation; the implementation boundary matters.

Incorrect Answers

B:

A confident rationale cannot replace code inspection.

C:

Browser appearance does not prove server-side injection safety.

D:

The backend is the relevant security boundary.

Question 529

A saved agent session had permission to browse a directory. The workspace owner later revokes that directory share. The user resumes the session and requests the old files. What should happen?

  1. Copy the directory to a public location so the resumed agent can read it.
  2. Claim that the files were deleted because access was denied.
  3. Reauthorize every new file access using current permissions; do not assume saved context extends revoked access.
  4. Read all files because the session previously had permission.

Explanation

Correct Answer

C:

Session persistence retains history but cannot restore access that an owner withdrew.

Incorrect Answers

A:

That bypasses the new restriction.

B:

Inaccessibility is not proof of deletion.

D:

Permissions can change after a session was saved.

Question 530

Agents need to know how to run a project’s local integration tests, but a teammate suggests adding database passwords to CLAUDE.md. Which approach is right?

  1. Disable integration tests forever because secrets are sensitive.
  2. Document the test command and how to obtain approved temporary credentials from secret management.
  3. Paste live database secrets into the repository instructions.
  4. Hard-code the password into every test file to simplify setup.

Explanation

Correct Answer

B:

Project memory can be shared; secret values should remain in controlled stores.

Incorrect Answers

A:

Secure credential delivery can support tests without exposing values.

C:

This creates unnecessary credential exposure.

D:

Replication broadens the attack surface and hampers rotation.

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