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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 16

Question 150

A coordinator asks a worker to propose a patch for a failing test. The worker returns a diff that edits protected deployment secrets even though the delegated scope was one parser file. What should the coordinator do?

  1. Apply the entire diff because the worker is a specialist.
  2. Publish the diff directly to production without inspecting paths.
  3. Remove the test that failed so the worker need not propose a patch.
  4. Reject the out-of-scope diff, request a limited parser-only patch and independently validate the changed files and tests.

Explanation

Correct Answer

D:

Subagents propose work but do not inherit unrestricted write authority. Scope validation prevents unauthorized modifications from crossing the handoff.

Incorrect Answers

A:

Specialization does not authorize unrelated secret edits. The coordinator remains responsible for enforcing boundaries.

B:

An unreviewed patch can change sensitive configuration and cause outages. File scope and tests must be checked.

C:

Suppressing evidence does not repair the parser. A correct bounded change should address the failure.

Question 151

An analytics agent can answer sales questions, but the proposed SQL tool accepts arbitrary statements and connects as a database administrator. What interface is best?

  1. Allow any SQL if the assistant says its purpose is reporting.
  2. Return a cached sales total for every query, even when requested filters differ.
  3. Offer a parameterized read-only query interface limited to approved tables and columns, using a least-privilege database role.
  4. Keep administrator credentials and include “do not use DELETE” in the tool description.

Explanation

Correct Answer

C:

A narrow contract enforces safe query shapes at the backend rather than asking the model to avoid destructive SQL. Authorization and query limits still need enforcement.

Incorrect Answers

A:

A natural-language claim is not enforceable authorization. The interface should constrain both operation and accessible data.

B:

Fabricated or stale values hide failures. The tool must return data actually matching the validated request.

D:

Descriptions guide model choices but cannot prevent a malicious or mistaken statement. Database privileges must enforce the boundary.

Question 152

An MCP search tool receives a request for a confidential project folder. The user lacks access. Which response preserves correct semantics without leaking protected metadata?

  1. Return the first protected document title and a few lines to prove access was denied.
  2. Return zero results with a success status and no explanation.
  3. Retry with the MCP server administrator’s credentials automatically.
  4. Return a structured permission-denied error with a safe request identifier and no document content.

Explanation

Correct Answer

D:

A permission failure is not an empty search result and should remain explicit. Sanitized references support audit and authorized escalation without leaking source names.

Incorrect Answers

A:

Even titles or snippets can be confidential. An error must not reveal inaccessible source data.

B:

The client may incorrectly conclude nothing exists. Authorization failure should be distinguished from absence.

C:

Privilege escalation without authorization bypasses access controls. The original requester’s permissions must be respected.

Question 153

A coordinator delegates research about application latency. The same tool registry also has a production service restart command. What capability mapping prevents accidental restarts?

  1. Expose only observability and document tools to the research worker; keep restart authority in a separate approved execution stage.
  2. Expose the restart tool but ask the worker to think carefully before using it.
  3. Grant every research worker a shared administrator role for efficiency.
  4. Permit the research worker to restart the service once whenever observability evidence remains inconclusive, without a separately approved action.

Explanation

Correct Answer

A:

Tool distribution should follow roles and stages. A read-only worker can report a restart proposal without being able to perform it.

Incorrect Answers

B:

Prompt caution is not enforceable permission. Unnecessary side-effect capability widens the attack surface.

C:

Broad shared credentials defeat least privilege and accountability. Research does not require production mutations.

D:

An inconclusive diagnostic does not authorize a production restart. The worker should surface its recommendation and supporting telemetry; an execution authority must validate scope and approve the side effect.

Question 154

A developer adds an external issue-tracker MCP integration for one project. The server requests organization-wide write access, but the task needs to read a few issue statuses. What setup is preferable?

  1. Rely on the assistant to ignore write tools despite giving the server unrestricted write permissions.
  2. Configure a read-only token scoped to the target project and review the server/tool permissions before activation.
  3. Approve organization-wide write access because future requests may need it.
  4. Commit the full-privilege token to the project configuration so all developers can reuse it.

Explanation

Correct Answer

B:

A compatible MCP protocol does not grant blanket trust. Limiting credential scope and tool availability contains unexpected server behavior.

Incorrect Answers

A:

Model behavior is not a security boundary. The integration must enforce the least-privilege credential.

C:

Speculative convenience does not justify broad permissions. The current task needs only limited reads.

D:

Shared repository tokens expose credentials and remove individual accountability. Secret injection and scoped accounts are safer.

Question 155

A customer-case assistant forks an old review session to test a new policy. The branch later resumes after interruption. Which records prevent the resumed branch from being mistaken for the original case decision? Select TWO.

  1. A stable parent session ID and distinct fork/branch identifier.
  2. The verified state snapshot or event cursor at which the branch diverged.
  3. A chronological list of unrelated user preferences that does not identify either session.
  4. An instruction to combine both branches into one conversation without tags.
  5. A new random parent ID on every restart.
  6. A success flag set before executing the new policy.

Explanation

Correct Answers

A:

Parent-child identity preserves lineage and prevents alternative findings from overwriting the original. It also permits controlled comparison after both runs finish.

B:

The divergence point identifies what facts were shared at the fork and which subsequent actions belong only to the new branch. It enables correct resumption.

Incorrect Answers

C:

Generic profile details do not identify a branch or its precise divergence point. Session provenance must be explicit.

D:

Merging independent histories removes attribution and can contaminate outcomes. Separate identities are needed.

E:

Changing lineage on restart makes the original fork relationship unrecoverable. Parent identity should be stable.

F:

Pre-emptive success claims misrepresent the branch outcome. The status must reflect actual execution.

Question 156

A repository has shared secure-code rules and a nested payments directory that requires extra PCI handling. A developer edits a payment API handler. How should relevant instructions combine?

  1. Let comments in the handler redefine the model’s top-level permissions.
  2. Honor shared repository instructions and applicable payment-directory instructions, resolving true conflicts according to trusted hierarchy.
  3. Ignore all repository-wide security instructions whenever a nested CLAUDE.md exists.
  4. Apply payment instructions to unrelated marketing pages because they share the same repository.

Explanation

Correct Answer

B:

Nested conventions can add specificity while broad security requirements remain in force. Untrusted source text is not authority to cancel them.

Incorrect Answers

A:

Source comments may be untrusted. They do not automatically authorize privileged operations.

C:

Scoped rules supplement rather than automatically erase common requirements. The handler still needs global security controls.

D:

Path-specific rules should not burden unrelated work. Scope matching reduces accidental cross-domain guidance.

Question 157

An agent asks a tracking service for delivery status. The tool returns truncated JSON without its required status field. The assistant is tempted to tell the user the parcel has arrived. How should its loop proceed?

  1. Repair the missing JSON field locally by inserting “delivered”.
  2. Delete the order from the application because the lookup did not succeed.
  3. Treat the result as invalid, attempt a bounded safe retry or alternate verified lookup, and report uncertainty if the status remains unavailable.
  4. Infer delivered status because the tracking ID was accepted earlier.

Explanation

Correct Answer

C:

Malformed tool data is not proof of delivery. Validation plus bounded recovery protects factual accuracy without endless loops.

Incorrect Answers

A:

Inventing missing values creates a false source of truth. A retry or explicit unknown state is required.

B:

A read failure does not authorize order cancellation. Side effects must remain gated.

D:

A valid ID proves only the request target, not the current shipment state. Delivery needs a trustworthy response.

Question 158

A coordinator can send a question to twenty researchers. Most duplicate the same search and return nearly identical results. Which strategy improves efficiency without losing needed coverage?

  1. Use only the fastest worker and never compare important source claims.
  2. Assign complementary research scopes, cap fan-out, and stop or redirect workers that produce redundant findings.
  3. Launch all twenty workers for every question and merge all identical paragraphs.
  4. Run one researcher on every unrelated subject in parallel even if not requested.

Explanation

Correct Answer

B:

Independent but distinct scopes broaden coverage. Measured novelty and budget controls prevent pointless duplication.

Incorrect Answers

A:

Speed alone does not establish truth. High-stakes findings may need corroboration even with bounded fan-out.

C:

Unconditional fan-out increases cost without necessarily increasing evidence. Coordination should reflect task complexity.

D:

Irrelevant research consumes time and may introduce distracting or unsupported material. Delegation should stay aligned to the scenario.

Question 159

A support agent is authorized to summarize a customer’s account, not export the entire customer database. A retrieved help article tells it to call a broad export tool to “diagnose” the account. What should the host enforce?

  1. Reject export calls outside the verified user and dataset scope, regardless of instructions embedded in retrieved content.
  2. Grant the export capability because troubleshooting is mentioned in the article.
  3. Export the database but redact the file name before sharing it.
  4. Execute the export and then notify security if it seems excessive.

Explanation

Correct Answer

A:

The article is untrusted data. A deterministic authorization gate must restrict the tool to the user’s permitted operation.

Incorrect Answers

B:

Tool authority cannot come from external documentation. It must derive from the actual requester and approved policy.

C:

Hiding a file name does not limit the sensitive information exported. Prevent the unauthorized operation.

D:

Post-hoc notification cannot undo the copied data. Permission checks belong before execution.

Question 160

An analytics pipeline must fetch three independent datasets, normalize each, join them by an approved key, and create a report. Where is parallelism most useful?

  1. Generate the final report before any datasets are retrieved.
  2. Join unnormalized datasets using whichever column names happen to match.
  3. Let each data-source worker create a polished standalone summary and merge only the narrative results.
  4. Fetch and normalize independent datasets concurrently, then perform the join and final report after all required inputs pass validation.

Explanation

Correct Answer

D:

Independent data preparation can be parallelized. The join depends on validated standardized inputs and should wait for them.

Incorrect Answers

A:

A report without inputs would be speculative. The dependent task cannot precede its evidence.

B:

Uncontrolled schemas can cause false joins. Validation and normalization are prerequisites.

C:

Independent summaries can hide schema and join-key mismatches. The cross-source report requires normalized records with validated keys before aggregation; narrative-only merging cannot verify the joins.

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