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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 8

Question 70

A developer is testing a private local knowledge MCP server that other teammates should not discover or configure. The project already has production MCP integrations committed. Where should this experimental configuration belong?

  1. Commit the personal server and bearer token to shared .mcp.json.
  2. Put the experimental URL into the main CLAUDE.md as a standing team instruction.
  3. Publish every local server resource to an unrestricted public endpoint.
  4. Configure it at user scope with local credentials rather than adding it to the shared project MCP file.

Explanation

Correct Answer

D:

User-level configuration isolates a personal experiment. Team-managed integrations remain in project scope without forcing unrelated dependencies on colleagues.

Incorrect Answers

A:

This would expose a secret and impose a workstation-specific server on the team. The integration is not a project requirement.

B:

Shared instructions should describe team behavior, not silently enable a personal tool. A local MCP configuration is more appropriate.

C:

The request concerns local experimentation, not external sharing. Publishing resources broadens exposure unnecessarily.

Question 71

A month-old agent session contains many obsolete file paths after a major repository rewrite. The team has a new verified dependency map and a short list of unfinished tests. What continuation approach best avoids stale assumptions?

  1. Treat legacy session file paths as authoritative and defer consulting the new verified dependency map until after implementation.
  2. Ask the model to guess names of replacement files from former conventions.
  3. Begin a fresh session seeded with the current dependency map, verified decisions and unfinished tests.
  4. Resume the old session and suppress messages about the rewrite.

Explanation

Correct Answer

C:

When most earlier tool results are stale, a clean context with authoritative facts is safer than blindly resuming. It retains necessary progress without obsolete path assumptions.

Incorrect Answers

A:

An old path list can become inaccurate after a repository rewrite, even if it was correct when captured. Continuing without reconciling the current verified map would send the agent to nonexistent modules.

B:

A repository rewrite can invalidate naming patterns. The actual current map is the appropriate source.

D:

Stale context can steer the agent toward nonexistent files. The change must be acknowledged and refreshed.

Question 72

A monorepo has a payments package requiring stricter decimal handling than the rest of the code. The standard should apply when working in that directory but not when editing unrelated UI code. Which instruction layout best fits?

  1. Explain the special rule in one ephemeral chat without storing it in repository context.
  2. Add package-scoped guidance in a payments-directory CLAUDE.md or equivalent path-specific rules.
  3. Put payments decimal rules in a global user memory file for every repository.
  4. Erase root instructions because one package differs from the rest.

Explanation

Correct Answer

B:

Directory-scoped instructions apply where the special numeric contract matters. Other packages can retain their existing conventions.

Incorrect Answers

A:

Future sessions may miss the one-time message. Stable package-specific requirements belong in persistent scoped guidance.

C:

Personal global rules can affect unrelated work and are not reliably shared. The requirement is specific to this package.

D:

A localized exception does not invalidate project-wide guidance. The hierarchy allows both common and scoped rules.

Question 73

An engineer needs to list all nested TypeScript test files ending in .test.tsx but has no specific function name to search. Which built-in tool should be used first?

  1. Use Glob with an appropriate **/*.test.tsx pattern to enumerate matching paths.
  2. Use Grep to search for the literal string “.test.tsx” inside every file.
  3. Use Edit to replace the extension in the first matching file.
  4. Use Write to create a new test file and assume it represents the existing suite.

Explanation

Correct Answer

A:

Glob matches names and paths efficiently. After files are found, Read or Grep can inspect their actual contents as needed.

Incorrect Answers

B:

File bodies need not contain their own filenames. Content search is not the primary way to discover paths by extension.

C:

The request is discovery, not modification. Editing files would be an unnecessary side effect.

D:

Creating a file does not enumerate existing paths. A path discovery tool is required.

Question 74

A team has universal security coding rules and a specialized release-note generator used only before deployments. How should these two instruction types be organized?

  1. Put both into a temporary developer chat and never version them.
  2. Keep universal coding standards in project guidance and expose release-note generation as an on-demand skill.
  3. Load the entire release-note generator with every normal edit request.
  4. Make the release skill the only source of security coding rules.

Explanation

Correct Answer

B:

Always-relevant rules belong in standing context. Task-specific routines should activate only when requested, reducing irrelevant instructions.

Incorrect Answers

A:

Ephemeral messages are not a reliable shared configuration system. The team needs durable project rules and a callable skill.

C:

That adds unnecessary context and can encourage unrelated release behavior. An on-demand skill is more appropriate.

D:

Routine edits may not invoke it, leaving critical universal standards missing. Those belong in persistent project guidance.

Question 75

A large codebase stores *.spec.ts files across 40 packages. Copying identical testing instructions into every package has created divergent versions. What is the smallest maintainable correction?

  1. Use a user-level setting on one developer’s laptop as the sole shared rule.
  2. Create a single shared path-scoped rule matching **/*.spec.ts and remove redundant package copies after validation.
  3. Copy the latest instruction file into every package again without adding a source of truth.
  4. Restrict instructions to the first package so no duplicates remain.

Explanation

Correct Answer

B:

A filename glob enforces the same convention wherever matching tests live. Centralizing avoids inconsistent maintenance.

Incorrect Answers

A:

A private setting does not reach teammates or their sessions. Shared project rules must be stored with the repository.

C:

Another mass copy only postpones drift. The requirement spans directories and suits path-scoped rules.

D:

This would leave tests in 39 packages without the intended conventions. The pattern must cover all relevant files.

Question 76

A company is moving authentication tokens across six services, with multiple possible rollback schemes and unknown dependencies. The operator asks for immediate edits, but the migration could lock out users. What approach minimizes avoidable disruption?

  1. Change every service token decoder at once with no migration or rollback plan.
  2. Disable authorization checks during migration to reduce lockout risk.
  3. Refuse all implementation work because a complex project can never be automated.
  4. Investigate service contracts in plan mode, choose a tested migration and rollback sequence, then execute scoped changes.

Explanation

Correct Answer

D:

Large cross-service changes have architectural dependencies and failure modes. Planning before edits protects the recovery path and gives explicit acceptance criteria.

Incorrect Answers

A:

Simultaneous uncoordinated edits can break compatibility and prevent recovery. The request is high impact and deserves dependency analysis.

B:

Bypassing access control trades availability for a serious security exposure. A staged compatibility strategy is needed instead.

C:

Complexity calls for structured investigation and controlled execution, not indefinite inaction. The tool can still implement an approved strategy.

Question 77

A customer asks Claude Code to “build a reliable retry queue” but gives no requirements for ordering, duplicate suppression or delivery guarantees. What should happen before coding the implementation?

  1. Implement an arbitrary queue configuration and declare it production-ready.
  2. Assume exactly-once delivery exists automatically in all message systems.
  3. Write only documentation promising reliability without any executable tests.
  4. Ask focused questions about ordering, idempotency, retry limits and failure handling, then confirm acceptance cases.

Explanation

Correct Answer

D:

These unknowns determine the architecture. An interview-style exchange prevents the agent from inventing contracts that could lose messages.

Incorrect Answers

A:

Unspecified semantics can lead to duplication or loss under retries. The required behavior needs clarification before architectural choices.

B:

Exactly-once semantics are not a universal default and often require application idempotency. The agent must establish real guarantees.

C:

A promise does not define or validate failure behavior. Concrete requirements and tests are needed for a dependable queue.

Question 78

A code reviewer produces mostly false alarms in the “comment style” category, and engineers have begun ignoring even correct security findings. What corrective rollout is most appropriate?

  1. Remove every security finding because developers are unhappy with the reviewer.
  2. Hide false-positive metrics from users instead of changing the reviewer.
  3. Temporarily disable the noisy category, refine its explicit criteria on labeled examples, then reintroduce it after precision testing.
  4. Lower the confidence threshold so the system reports even more style warnings.

Explanation

Correct Answer

C:

Reducing a known bad category can restore trust while preserving critical categories. Objective evidence should guide its return.

Incorrect Answers

A:

The problem is concentrated in one noisy category. Eliminating valid security reports throws away useful coverage.

B:

Concealing evaluation does not improve output. The team should adjust criteria and measure the resulting precision.

D:

More weak findings amplify alert fatigue. The issue is precision, not lack of volume.

Question 79

A code-review model identifies real bugs but returns vague paragraphs with no location, severity or suggested fix. Plain instructions about format have not helped. What should the team add?

  1. Omit file locations because detailed reports take more tokens.
  2. Turn every review into a single yes/no pass field and discard defect descriptions.
  3. Provide a few representative input snippets paired with findings containing file location, concrete issue, severity and fix.
  4. Ask for longer prose without showing an actionable response shape.

Explanation

Correct Answer

C:

Examples demonstrate both expected structure and depth. The model can generalize the desired review style to similar unseen defects.

Incorrect Answers

A:

Without location a finding is harder to validate and repair. The requested output explicitly needs traceability to code.

B:

A boolean cannot guide developers toward fixes. The team needs structured, actionable evidence.

D:

Length alone does not ensure locations or practical remediation. The missing contract is what a useful finding looks like.

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.

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