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Exam Code: CCA-F

Exam Name: Claude Certified Architect - Foundations

Certification Provider: Anthropic

Questions & Answers

Anthropic CCA-F Questions & Answers

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Questions & Answers

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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 23

Question 220

TypeScript API files appear under several services and packages, but one local rule applies only to api/. What matcher is most appropriate?

  1. Use a verified glob covering relevant API paths, such as **/api/**/*.ts, with explicit exclusions.
  2. Match every .json file instead of TypeScript modules.
  3. Place the convention in a user-only memory file.
  4. Match only api/index.ts at the repository root.

Explanation

Correct Answer

A:

The rule should follow affected files across nested packages.

Incorrect Answers

B:

That covers unrelated configuration rather than API code.

C:

Team-wide API rules need shared coverage.

D:

That excludes other API implementation files.

Question 221

A JavaScript module is migrated from .js to .ts and needs the same security naming rule afterward. What should the path rule author verify?

  1. Ensure relevant source and destination extensions are deliberately included in the configured matcher.
  2. Assume the old matcher applies regardless of extension.
  3. Rename every TypeScript file back to JavaScript to preserve a rule.
  4. Disable all extension checks so every rule loads globally.

Explanation

Correct Answer

A:

Renames can change which conditional guidance loads.

Incorrect Answers

B:

Path-glob rules depend on file names and locations.

C:

File types should reflect code needs, not a configuration mistake.

D:

Broad loading creates irrelevant and conflicting guidance.

Question 222

A unit test reveals a one-line date validator bug with a known expected result. Which Claude Code mode is most efficient?

  1. Inspect the local function, make a focused direct edit and run the relevant test.
  2. Rewrite the entire date library without examining the failing assertion.
  3. Modify production code without checking its test afterward.
  4. Start a multi-day architecture planning process before changing one condition.

Explanation

Correct Answer

A:

A bounded, well-understood defect does not need a broad planning phase.

Incorrect Answers

B:

A large rewrite increases regressions.

C:

The failure needs evidence of correction.

D:

The overhead is disproportionate to the scoped repair.

Question 223

A company proposes redesigning authentication across eight services with unclear migration order. What should Claude Code do before applying edits?

  1. Run the authentication redesign without first capturing existing auth-test coverage, planning to update tests afterward.
  2. Use read-only plan mode to map dependencies, security boundaries, rollout and rollback strategy.
  3. Edit every service immediately based on the first plausible interface idea.
  4. Assume a small diff in one service guarantees ecosystem compatibility.

Explanation

Correct Answer

B:

Large high-impact changes benefit from investigation and explicit design.

Incorrect Answers

A:

A high-impact redesign needs a baseline of expected behavior and a migration/rollback plan. Deferred tests leave changes ungrounded.

C:

Unplanned cross-service changes can break access controls.

D:

The redesign spans shared contracts and data paths.

Question 224

A monorepo needs migration from one dependency framework to another, but consumer modules and compatibility risks are unknown. What is the suitable initial workflow?

  1. Run mass replacements on every import string immediately.
  2. Skip code inspection because published migration notes are sufficient.
  3. Explore affected modules and develop an ordered plan before making widespread changes.
  4. Remove the legacy framework during the first step and discover its consumers from resulting failures.

Explanation

Correct Answer

C:

Uncertain dependencies require design work to avoid breaking consumers.

Incorrect Answers

A:

Blind rewriting can corrupt unsupported call sites.

B:

Repository-specific use may diverge from generic docs.

D:

Unplanned deletion can break shared interfaces. Dependency investigation and design review should precede broad migration.

Question 225

A fixture contains one misspelled status string and a focused test identifies the expected literal. What is the appropriate Claude Code behavior?

  1. Ask multiple agents to debate an architecture redesign.
  2. Declare success from reading the assertion without executing the corrected test.
  3. Rewrite unrelated test directories to establish consistency.
  4. Make the direct scoped correction and run the affected test.

Explanation

Correct Answer

D:

A small deterministic fix can proceed without a complex plan.

Incorrect Answers

A:

The change is a verified fixture typo.

B:

Review should confirm the behavior when feasible.

C:

Broad changes introduce unnecessary risk.

Question 226

A refactor will touch forty-five files and change a shared serialization contract. What must precede code mutation?

  1. Plan dependencies, version compatibility, staged edits, tests and rollback expectations before execution.
  2. Execute simultaneous bulk edits without examining consumers.
  3. Make the model choose a new contract separately for each module.
  4. Treat passing one unit test as full integration coverage.

Explanation

Correct Answer

A:

The interface change has system-wide impact beyond the number of files.

Incorrect Answers

B:

Uncoordinated changes can break compatibility.

C:

Independent design decisions can produce inconsistent formats.

D:

One local test cannot validate every consumer.

Question 227

An error trace pinpoints a null dereference in one helper, and the change requires an obvious guard. Select TWO actions to resolve the pinpointed regression efficiently.

  1. Remove the helper entirely without checking callers.
  2. Start exploratory research across every service in the company.
  3. Skip testing because the fix is small.
  4. Use a narrow direct fix with an appropriate regression test rather than an unrelated architecture planning cycle.
  5. Inspect the affected caller behavior and the focused test result before marking the null-check fix complete.

Explanation

Correct Answers

D:

The defect and scope are sufficiently clear for targeted execution.

E:

A small patch may change return behavior seen by callers. Targeted dependency review complements direct editing without requiring a broad redesign.

Incorrect Answers

A:

Deletion changes behavior beyond the requested bug.

B:

Broad investigation wastes effort unrelated to the trace.

C:

A focused regression check can catch an incorrect condition.

Question 228

A new engineer is asked to change a public API in an unfamiliar repository; no one knows how downstream services call it. What should happen first?

  1. Change the signature immediately and let customers discover failures.
  2. Use a read-only exploration or planning workflow to discover consumers and propose a compatibility strategy.
  3. Delete compatibility tests to prevent them from failing.
  4. Assume no consumers because the current folder has no direct imports.

Explanation

Correct Answer

B:

A breaking interface change requires understanding its usage.

Incorrect Answers

A:

Unplanned breakage is avoidable.

C:

Failing tests are useful evidence, not obstacles to hide.

D:

Consumers may exist in other packages or services.

Question 229

A feature request says 'make onboarding faster' but offers no acceptance metrics or scope. Which initial response is appropriate?

  1. Implement a generic caching layer before identifying which onboarding step is slow or how success will be measured.
  2. Clarify requirements and investigate workflows in plan mode before authoring a broad code change.
  3. Treat the fastest implementation as automatically meeting business needs.
  4. Remove validation steps without an approved risk tradeoff.

Explanation

Correct Answer

B:

Ambiguous objectives cannot be mapped reliably to a correct implementation.

Incorrect Answers

A:

Caching may not address the actual bottleneck and adds complexity. The objective and measurable constraints should be established before picking an implementation.

C:

Performance is not the only possible interpretation of onboarding.

D:

Unsafe shortcuts may reduce latency while violating requirements.

Question 230

A detailed refactor plan was already approved and the affected modules are identified. What should the agent do next?

  1. Switch to direct implementation against the accepted plan with focused verification, not plan the same work again.
  2. Reopen the entire design discussion after each file edit.
  3. Discard the approved plan and improvise a different architecture.
  4. Skip tests to make implementation faster.

Explanation

Correct Answer

A:

Repeating completed planning adds overhead without resolving a new issue.

Incorrect Answers

B:

Unnecessary churn can introduce contradictory decisions.

C:

Verified requirements should be preserved unless evidence changes.

D:

The defined acceptance criteria still require checks.

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