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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 2

Question 10

A repository team needs a shared issue-tracker MCP server configuration that works after cloning the project. Credentials must not be committed. Where should the portable server definition be kept?

  1. Add a project-scoped .mcp.json containing the server definition and environment-variable references for credentials.
  2. Commit a personal ~/.claude.json file and all developer tokens into the repository.
  3. Put every issue-tracker secret directly in CLAUDE.md beside repository instructions.
  4. Require each employee to configure an unrelated local server name and manual token in an untracked notebook.

Explanation

Correct Answer

A:

Project configuration can be versioned for the team, while token values remain outside the repository. The runtime expands configured environment references when establishing the connection.

Incorrect Answers

B:

User-level configuration is intended for personal settings, and committed secrets would expose credentials. A checked-in project definition must reference external secret values.

C:

Instruction files are not secret stores, and tool connections require actual MCP configuration. A shared definition plus externally supplied environment variables meets both needs.

D:

Manual per-person configuration drifts and undermines a portable team integration. A project-scoped template avoids duplication without committing credentials.

Question 11

A Claude Code investigation was saved under a named session. A teammate then changed the parser modules. The engineer wants to continue that analysis without repeating the entire discovery process. What should they do?

  1. Resume silently and assume all earlier tool output remains true after the refactor.
  2. Fork a new session and immediately merge its assumptions with the old result without inspecting changes.
  3. Delete all session information and begin every project analysis from scratch.
  4. Resume the named session, explicitly report the intervening parser changes, and revalidate only affected earlier findings.

Explanation

Correct Answer

D:

Session resumption preserves useful reasoning, but filesystem changes can invalidate old observations. Supplying change context and targeted validation combines continuity with freshness.

Incorrect Answers

A:

Old source paths and behavior may have changed. Continuing without revalidation risks actions grounded in outdated evidence.

B:

Forking supports independent explorations; it does not validate stale findings. A targeted refresh is still needed after modifications.

C:

A full restart discards correct, reusable context and increases cost. The task asks to retain valid findings and revisit only affected parts.

Question 12

A coding team discovers that only one developer’s Claude Code sessions follow its testing conventions. The guidance is stored in that person’s ~/.claude/CLAUDE.md and absent from version control. How should the team distribute it?

  1. Ask every teammate to copy the developer’s entire personal home directory.
  2. Insert testing conventions only into a one-time chat message during onboarding.
  3. Store the conventions in an unrelated README that Claude Code is never instructed to load.
  4. Move shared conventions into a version-controlled project CLAUDE.md, with modular imports or scoped rules as needed.

Explanation

Correct Answer

D:

Project instructions travel with the repository and can be reviewed by the team. User-level memory remains appropriate for personal preferences that should not affect everyone.

Incorrect Answers

A:

Home-directory files can contain private settings and unshared assumptions. Copying them is neither maintainable nor a controlled team configuration strategy.

B:

Temporary conversation instructions will not reliably apply to later sessions. Stable project guidance belongs in persistent repository configuration.

C:

Documentation can be useful to people, but an unreferenced file may not enter the assistant context. The project instruction mechanism should explicitly load the rules.

Question 13

A developer knows a TypeScript function name but not which modules invoke it. The repository includes barrel exports that sometimes rename functions. What tool-led search approach is most appropriate?

  1. Use Glob alone to search for the function identifier inside source files.
  2. Run Bash to delete generated indexes before searching the codebase.
  3. Assume the file defining the function is its only caller if the first Grep is empty.
  4. Start with Grep for content references and exports, inspect re-export names, then search for the exported aliases.

Explanation

Correct Answer

D:

Grep locates strings in source content. Inspecting exports before searching aliases accounts for wrappers that rename symbols and hide downstream call sites.

Incorrect Answers

A:

Glob matches path patterns rather than file contents. It can narrow candidate files but cannot establish callers by identifier.

B:

Deleting indexes is unrelated to discovering usages and adds unnecessary risk. Dedicated content search and targeted file reads are sufficient.

C:

Wrappers may re-export the function under another name. The search needs to follow aliases instead of treating an initial miss as proof of no call sites.

Question 14

A project skill performs a broad codebase inventory and returns thousands of lines. Running it inline routinely consumes the parent chat context before implementation work begins. Which configuration addresses this?

  1. Make the skill return identical output twice to ensure the parent remembers it.
  2. Disable all skills and require manual source reading for every investigation.
  3. Configure the skill to run in forked context and return a concise, useful result to the parent.
  4. Paste the entire inventory into CLAUDE.md so every future request sees it.

Explanation

Correct Answer

C:

A forked skill runs its verbose exploration in a separate context and returns a focused result to the parent. Restrict any risky tools with explicit deny rules or an appropriately scoped subagent; the skill’s allowed-tools field alone only pre-approves listed tools.

Incorrect Answers

A:

Duplication wastes tokens and worsens context pressure. An isolated run and concise synthesis are more efficient.

B:

Skills can still be useful when scoped properly. Removing them does not directly address the avoidable context contamination.

D:

Permanent instruction files should contain stable reusable guidance, not huge ephemeral search results. This would increase context cost for unrelated tasks.

Question 15

A monorepo has test files scattered among several packages. All **/*.test.tsx files must follow the same review conventions, but ordinary components should not load these test-only rules. Which configuration is the best fit?

  1. Put the file pattern into a shell alias that Claude Code never reads.
  2. Create a .claude/rules/ file with a paths glob matching **/*.test.tsx.
  3. Place the testing rules only in the root CLAUDE.md with no scoping.
  4. Copy an identical CLAUDE.md into every package, whether or not it contains tests.

Explanation

Correct Answer

B:

Path-specific rules apply only when matching files are relevant, regardless of package directory. This avoids bloating unrelated sessions with test-only conventions.

Incorrect Answers

A:

A shell alias does not declare conditional instruction loading. The rules directory and its paths metadata are the appropriate configuration mechanism.

C:

Global instructions would apply even while editing production files unrelated to tests. The request explicitly seeks conditional loading.

D:

Duplicated files drift and impose unnecessary instructions on every package. A cross-directory glob is more precise and maintainable.

Question 16

A maintainer requests a migration affecting dozens of modules with competing compatibility strategies. The required interface is not yet settled and a bad first edit could trigger widespread breakage. What is the best initial Claude Code mode?

  1. Use plan mode to map dependencies and evaluate alternatives, then switch to direct execution for the agreed changes.
  2. Immediately rewrite every import in direct mode before discovering dependencies.
  3. Always use plan mode even for a single spelling correction after the migration.
  4. Avoid all codebase inspection and let the model infer API compatibility from common library patterns.

Explanation

Correct Answer

A:

A complex, multi-file architecture choice benefits from read-oriented exploration before writing. Once the approach is clear, focused execution can apply and test it.

Incorrect Answers

B:

Wide edits made before choosing a compatible approach can multiply regressions. The task has unresolved design decisions that should be investigated first.

C:

Planning is valuable when uncertainty or scope is high, not as a universal requirement. Small, well-scoped edits can proceed directly.

D:

Assumed interfaces may not match the repository. Dependency discovery is necessary before committing a large migration strategy.

Question 17

A developer asks Claude Code to implement a date parser. The first version passes happy-path tests but fails on leap days and explicit timezone offsets. What feedback most directly improves the next iteration?

  1. Provide the failing test cases, expected outputs, and actual errors; then rerun the focused suite after changes.
  2. Tell Claude that the parser should simply be more robust without examples.
  3. Remove leap-day and timezone tests so the new implementation appears correct.
  4. Change the prompt to demand a longer explanation but provide no failing inputs.

Explanation

Correct Answer

A:

Concrete failures specify the missing behavior and enable test-driven refinement. The assistant can correct the implementation against observable acceptance criteria instead of guessing intent.

Incorrect Answers

B:

A vague request leaves the edge cases underspecified. Exact inputs and expected values tell the model which behavior must change.

C:

Dropping failing cases hides real requirements and makes the result less reliable. Tests should guide repairs rather than be discarded to obtain green output.

D:

More prose does not identify the faulty branch or the expected date behavior. Specific test evidence is the useful refinement signal.

Question 18

A pull-request reviewer emits many low-value warnings about acceptable comments. Engineers want actionable findings where a comment actually contradicts the code. Which prompt revision is most direct?

  1. Add “be conservative” ten times without defining reportable cases.
  2. Prohibit all findings so developers never see false positives.
  3. Raise every finding to high severity without checking code behavior.
  4. Specify that comments should be flagged only when their claimed behavior conflicts with implemented behavior, with concrete positive and negative examples.

Explanation

Correct Answer

D:

Explicit categorical criteria narrow the reviewer to verifiable contradictions. This is more dependable than asking it merely to be cautious or report high confidence.

Incorrect Answers

A:

A generic caution does not specify which comments are truly problematic. It is unlikely to fix the reviewer’s boundary.

B:

Silencing reports also removes legitimate defects. The goal is to improve precision, not eliminate detection.

C:

Severity inflation does not improve validity. The reviewer needs specific evidence-backed criteria for when a comment is actually incorrect.

Question 19

An invoice extractor often puts a supplier tax ID into the purchase-order field on scanned forms. Written instructions are clear but errors persist across layouts. What is the best prompt-level refinement?

  1. Remove tax ID and order ID fields from the required output schema.
  2. Tell the model to output any number it can find when labels are unclear.
  3. Provide a few labeled examples of contrasting layouts showing both fields, with the intended JSON output and ambiguous-case handling.
  4. Add unrelated examples of business emails with no invoice fields.

Explanation

Correct Answer

C:

Targeted few-shot examples teach the distinguishing visual and textual cues. They can improve consistency across layouts where long general instructions have not worked.

Incorrect Answers

A:

Eliminating fields evades the requirement rather than resolving incorrect placement. The team still needs accurate values for downstream processing.

B:

An ungrounded numeric fallback increases false extractions. Examples should teach explicit ambiguity handling and preserve uncertain fields.

D:

Examples should illustrate the relevant document ambiguity. Unrelated messages do not teach the extractor to separate the two identifiers.

Question 20

A tool call returns JSON that matches the extraction schema, but its invoice total is $430 while the extracted line items sum to $395. What must the application do before booking the invoice?

  1. Approve the invoice because strict tool-use JSON cannot contain semantic errors.
  2. Drop the stated_total field from output to avoid revealing the conflict.
  3. Round the line items until their sum matches the declared total.
  4. Perform a semantic total reconciliation and route the mismatch for correction or review even though the JSON is syntactically valid.

Explanation

Correct Answer

D:

Schema conformance guarantees shape, not mathematical truth. A separate calculation can detect inconsistent financial values that a JSON validator accepts.

Incorrect Answers

A:

Valid fields can still hold wrong numbers. Mathematical reconciliation is independent of JSON syntax and field-type checks.

B:

Hiding a mismatch removes important evidence. Preserving both computed and reported totals helps resolve a real data discrepancy.

C:

Arbitrary adjustment fabricates financial information. The pipeline must verify the source and explicitly handle the inconsistency.

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