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Exam Code: CCA-F

Exam Name: Claude Certified Architect - Foundations

Certification Provider: Anthropic

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 5

Question 40

A documentation MCP server has hundreds of documents, but the assistant repeatedly guesses paths and calls fetch_document for files that do not exist. What capability would most directly improve discovery?

  1. Increase the maximum number of failed fetch attempts per request.
  2. Have the agent fabricate plausible document URLs from page titles.
  3. Paste every entire document into a single tool description.
  4. Expose a structured MCP resource catalog of available document titles and identifiers before requesting full content.

Explanation

Correct Answer

D:

A catalog helps the agent select actual resources without blind fetch attempts. It can keep large document bodies out of context until needed.

Incorrect Answers

A:

More guessing increases latency without making available identifiers discoverable. The underlying problem is missing resource discovery.

B:

Guessing paths risks incorrect source claims and cannot establish availability. The server should publish valid resource identifiers.

C:

Descriptions are for choosing tools, not bulk content storage. A resource catalog and targeted reads are more scalable.

Question 41

An engineer has mapped a legacy application and wants to evaluate two incompatible database migration strategies without losing the shared investigation. What session strategy best supports a clean comparison?

  1. Fork two sessions from the common analyzed baseline, keeping independent experiment findings and comparing their results afterward.
  2. Run both incompatible experiments sequentially in one mutable session and overwrite previous conclusions.
  3. Discard the baseline and reread the entire repository for each strategy.
  4. Assume the two strategies are compatible and combine their changes before testing.

Explanation

Correct Answer

A:

A fork reuses known context while isolating divergent changes. Separate histories reduce accidental contamination of one approach by the other.

Incorrect Answers

B:

A single changing history can blur assumptions and make side-by-side comparison difficult. Independent branches preserve each design’s evidence.

C:

A full restart loses valuable verified analysis. Forking preserves that shared context without entangling the experiments.

D:

The prompt explicitly describes incompatible approaches. Combining them prematurely can create misleading failures and invalidate the comparison.

Question 42

A monorepo has a huge CLAUDE.md containing API, database, legal and deployment conventions. Team members regularly miss package-specific rules. What organizational change improves maintainability?

  1. Delete all project instructions and rely on the model’s default coding habits.
  2. Store the shared standards only under an individual engineer’s home directory.
  3. Move distinct standards into focused files and reference the relevant ones through supported CLAUDE.md imports or scoped rules.
  4. Append another copy of each convention to the end of the original file.

Explanation

Correct Answer

C:

Smaller modules create clearer ownership and reduce irrelevant instructions. The main project guidance can link to standards instead of duplicating them.

Incorrect Answers

A:

Default conventions may not match repository requirements. The problem is organization and relevance, not the existence of instructions.

B:

Personal files do not travel with the repository. This would reintroduce the team consistency failure.

D:

Duplication increases token load and creates conflicting revisions. Modular references are easier to maintain.

Question 43

A developer attempts to change an error message in a configuration file. The Edit tool rejects the operation because the target phrase appears four times. What is the safest next approach?

  1. Replace every occurrence of the phrase without checking whether all four serve the same purpose.
  2. Delete the file and create a new unrelated template from memory.
  3. Read the surrounding file, identify the correct occurrence, then use a uniquely anchored edit or controlled full-file rewrite.
  4. Repeat the identical ambiguous Edit call until it randomly selects one occurrence.

Explanation

Correct Answer

C:

Targeted replacements need an unambiguous match. Inspecting actual context prevents accidental changes to other occurrences.

Incorrect Answers

A:

Global replacement could change unrelated error behavior. The requested edit concerns one known context.

B:

Rebuilding without reading discards existing settings and introduces risk. A controlled context-aware edit is the smaller fix.

D:

A failed uniqueness check is a safety signal, not a transient server error. Blind retrying cannot disambiguate the target.

Question 44

A release-note formatting skill should be allowed to read a changelog and write a markdown draft but must not deploy code or contact external services. Which skill configuration enforces the intended boundary?

  1. Grant the skill unrestricted shell and deployment permissions to avoid later approval prompts.
  2. Place the rule in prose but expose all administration tools to the skill.
  3. Disable project version control so the release note cannot accidentally change production.
  4. Use skill disallowed-tools to deny deployment and external-action tools, with separately scoped permissions for the necessary file reads and draft writes.

Explanation

Correct Answer

D:

Claude Code skill allowed-tools only pre-approves tools for the current turn; it does not remove other tools. The documented disallowed-tools field can actually remove prohibited tools while the skill runs, with project permission rules governing allowed file operations. An independent deploy-deny rule remains appropriate for safety.

Incorrect Answers

A:

Unrestricted tools exceed its formatting purpose and could create serious side effects. Convenience does not justify unrelated capabilities.

B:

An instruction to avoid deployment is not an enforceable denial when dangerous actions remain callable. Explicit skill disallowed-tools and project permission rules are needed to block the prohibited side effects.

C:

Version control is useful for review and recovery. Disabling it does not provide precise skill permissions.

Question 45

Infrastructure code is spread across many teams’ repositories under multiple directories. The desired Terraform conventions should load only for .tf files. Which instruction-scoping design is most appropriate?

  1. Use a glob matching every source extension, including JavaScript and Python.
  2. Use a shared path-scoped rules file matching **/*.tf so the conventions activate for Terraform changes anywhere in the repository.
  3. Place the Terraform instructions in every subdirectory’s unscoped memory file.
  4. Store the rules only in a developer’s private settings and assume teammates inherit them.

Explanation

Correct Answer

B:

A glob rule targets file type across directory boundaries. Other code changes are not burdened with irrelevant infrastructure instructions.

Incorrect Answers

A:

An overly broad pattern defeats conditional loading. The requirement applies specifically to Terraform files.

C:

Duplication is difficult to maintain and applies to unrelated files in the same folders. File-type globs express the intended condition.

D:

Private user configuration is not a team-wide guarantee. Shared conventions require project-level files.

Question 46

A maintainer points Claude Code to one existing function and asks it to add a missing null check with a known failing unit test. The edit is small and the contract is unambiguous. What execution style is most efficient?

  1. Ask the owner to redesign the test suite even though the failing case already specifies expected behavior.
  2. Make the focused change directly, run the relevant test and report the result.
  3. Spend several rounds evaluating unrelated architecture alternatives before changing the function.
  4. Refactor the entire module and change its public interface before adding the check.

Explanation

Correct Answer

B:

A localized, well-defined edit does not require extensive architecture planning. Testing the existing failure gives immediate evidence of correctness.

Incorrect Answers

A:

The provided test makes the requirement actionable. Unnecessary approval pauses delay an otherwise straightforward repair.

C:

That introduces analysis overhead without resolving a real ambiguity. Direct execution is appropriate when scope and acceptance criteria are clear.

D:

Broad changes expand regression risk and violate the narrow task. The smallest correct fix is preferable.

Question 47

A pricing function rounds tax before applying a discount, while its tests assume discount-before-tax and use an outdated fixture. The two defects interact. How should a coding assistant be guided?

  1. Change the production calculation first and refuse to inspect its existing tests.
  2. Ask for a generic code cleanup unrelated to tax and discount order.
  3. Provide both the inconsistent pricing rule and fixture issue with example expected calculations so the assistant can repair the interaction coherently.
  4. Fix only the test fixture without examining the pricing logic.

Explanation

Correct Answer

C:

Interdependent defects should be considered together to avoid a patch that makes the other failure worse. Concrete examples clarify the intended order.

Incorrect Answers

A:

Skipping related test evidence can preserve incompatible expectations. Both sides describe the same behavioral contract.

B:

An unfocused cleanup risks distracting from the coupled defect. The prompt needs the actual failing inputs and expected outcome.

D:

A green fixture can conceal an incorrect business rule. The underlying calculation and test assumptions need to be reconciled.

Question 48

A code-review assistant assigns critical severity to any use of recursion, even when the recursion is bounded and correct. What specification would best improve severity classification?

  1. Tell the reviewer to assign fewer critical findings without describing which cases qualify.
  2. Change every recursive function to iterative form before any assessment.
  3. Ask for confidence scores only and treat any result over 90% as critical.
  4. Define concrete severity categories tied to reachable impact and supply examples of safe recursion and exploitable unbounded recursion.

Explanation

Correct Answer

D:

A rubric grounded in behavior separates real risk from a superficial syntax pattern. Examples clarify when high severity is warranted.

Incorrect Answers

A:

A numerical target can suppress real defects or produce arbitrary scoring. The decision needs categorical evidence, not a quota.

B:

A blanket rewrite confuses a style choice with a vulnerability. The reviewer should examine actual termination and input bounds.

C:

Confidence is not impact or severity. Accurate severity needs exploitability and consequence criteria.

Question 49

A security-review prompt flags every use of dynamic SQL, including parameterized prepared statements and unsafe string concatenation alike. What few-shot strategy is best?

  1. Include paired examples of safe binding and unsafe concatenation, labeled with findings and reasons for each classification.
  2. Show only unsafe examples and instruct the model to report every SQL-related line.
  3. Remove SQL injection from the review scope permanently.
  4. Provide examples of unrelated CSS formatting complaints instead of SQL code.

Explanation

Correct Answer

A:

Contrastive examples teach the model which property actually causes the flaw. They help reduce false alarms without hiding real injection risks.

Incorrect Answers

B:

Without safe counterexamples the model may generalize from syntax rather than data boundaries. This perpetuates false positives.

C:

Excluding an important bug category loses valuable coverage. The goal is better discrimination within that category.

D:

Styling examples do not teach parameter handling or query safety. Few-shot demonstrations need to match the disputed classification.

Question 50

An incident extractor has a JSON field for cause categories. Unexpected causes appear that are not in the current enum. The system must remain schema-valid without misclassifying them as one of the known types. How should the schema change?

  1. Randomly map each unknown cause to the nearest existing enum without recording uncertainty.
  2. Silently drop incidents whose cause does not fit the original enum.
  3. Add an other category with a constrained free-text detail field, and allow explicit unclear values when source evidence is insufficient.
  4. Remove category validation entirely and accept arbitrary keys in every record.

Explanation

Correct Answer

C:

A controlled extension preserves valid schema values while retaining novel information. The model need not force unsupported classifications into existing categories.

Incorrect Answers

A:

A forced inaccurate mapping hides the actual observation. The workflow should represent novelty and uncertainty explicitly.

B:

Dropping valid data creates reporting blind spots. A documented other-plus-detail pattern preserves the event.

D:

Unrestricted shape complicates downstream processing and loses consistency. An extensible but explicit schema handles new cases predictably.

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