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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 13

Question 120

An analysis coordinator invokes a specialist to inspect a Java service for risky database queries. The worker returns an unstructured ten-page transcript with guesses and no file locations. What would improve the delegation contract?

  1. Force the worker to report at least ten vulnerabilities even if none are found.
  2. Require a concise finding schema with file path, line span, evidence, severity and uncertainty, plus a no-finding outcome.
  3. Permit unlimited free-form logs because more tokens always increase confidence.
  4. Replace file locations with a general statement that SQL is often unsafe.

Explanation

Correct Answer

B:

A structured handoff makes worker output verifiable and compact enough to synthesize. Clear evidence fields distinguish confirmed flaws from tentative concerns.

Incorrect Answers

A:

Invented quotas create false positives. A valid no-finding result is necessary.

C:

Length alone can bury critical details and propagate guesses. The coordinator needs prioritized, attributable findings.

D:

Generic guidance does not identify this repository’s issues. Findings must cite actual code evidence.

Question 121

A legal agent searches case files for one tenant but its broad search tool returns matching passages from every customer. What interface change most directly reduces wrong-tenant citations?

  1. Hide the tenant identifier in the response but retrieve every tenant’s records.
  2. Sort all documents by age while ignoring ownership metadata.
  3. Require a tenant-scoped authorization context and a structured date filter in the search tool contract, enforcing both server-side.
  4. Rely on the assistant to discard cross-tenant documents after it reads them.

Explanation

Correct Answer

C:

The tool, not the model, should enforce data boundaries. Explicit validated filters improve relevance while preventing cross-tenant documents from entering the returned context.

Incorrect Answers

A:

Removing labels does not restrict access and increases the chance of accidental cross-customer attribution.

B:

Chronological sorting may help ranking but cannot establish who may access each source. Authorization must remain explicit.

D:

Once other customer data is returned, the exposure has already occurred. Boundary checks belong at retrieval.

Question 122

An MCP invoice tool rejects a negative invoice amount because its schema requires a positive value. The client retries unchanged input five times and eventually says the service is unavailable. What error contract is missing?

  1. Return a typed validation error with the offending field and nonretryable status so the caller corrects its input.
  2. Return a temporary unavailable error with exponential backoff instructions.
  3. Silently convert every negative amount to an absolute amount.
  4. Return success with an empty invoice ID.

Explanation

Correct Answer

A:

Invalid parameters do not become valid through retries. Field-level details help repair the request without confusing an input defect with a server outage.

Incorrect Answers

B:

Backoff is appropriate for transient service problems, not deterministic schema violations. Retries waste time without changing the bad value.

C:

A negative figure might represent a credit or error. Altering financial meaning without explicit policy violates data integrity.

D:

An empty success can propagate downstream as a real invoice. Invalid inputs should be reported transparently.

Question 123

A contract-review specialist can use document search and citation tools. It does not need payment or deletion capabilities, but the coordinator exposes both. Which tool policy best follows least privilege?

  1. Expose all tools and include “please do not pay” in a user message.
  2. Let the specialist call deletion for any low-confidence document.
  3. Grant payment authority temporarily without recording which worker received it.
  4. Pass only scoped read/search tools to the specialist and keep payment and deletion unavailable for that worker.

Explanation

Correct Answer

D:

Tool access should reflect delegated duties. Removing unrelated side-effect tools reduces the risk of accidental or injected actions.

Incorrect Answers

A:

Prompt guidance cannot enforce tool permission. Broad exposure creates avoidable opportunities for harmful calls.

B:

Low confidence warrants clarification or evidence review, not irreversible removal. Deletion does not support contract interpretation.

C:

Untracked temporary permissions undermine auditability. A read-only review should have no payment capability.

Question 124

A developer adds a remote MCP endpoint to Claude Code for issue lookup. The endpoint advertises a tool that requests access to local SSH keys, although the task only needs public issue metadata. What is the correct response?

  1. Review tool descriptions and required permissions, disable the inappropriate capability, and connect only through an approved scoped configuration.
  2. Approve all requested local filesystem access because the endpoint speaks MCP.
  3. Export SSH private keys once so the server can identify the machine.
  4. Ignore the tool’s permission request but rely on a prompt not to use it while keeping full rights enabled.

Explanation

Correct Answer

A:

An MCP integration does not automatically make a server or advertised tool trustworthy. Least privilege and explicit approvals bound access to the issue-lookup task.

Incorrect Answers

B:

Protocol compatibility is not authorization. The server’s origin and tool permissions require separate evaluation.

C:

Private keys are not needed for public issue lookup and exposure could compromise other systems.

D:

A host-level policy should prevent misuse even if the model or remote content requests the tool.

Question 125

An agent pauses immediately after sending a “create ticket” call. When the process resumes, it is unclear whether the external ticket service committed the request. What state should have been persisted?

  1. The conversation continuation plus a durable operation identifier and last-known side-effect status for reconciliation.
  2. Only the latest user prompt, with no prior tool requests or identifiers.
  3. A flag claiming every pending call succeeded regardless of remote acknowledgement.
  4. A new unrelated ticket number generated on every restart.

Explanation

Correct Answer

A:

Resumption must recover both reasoning context and external operation outcomes. An idempotency key or ticket reference prevents duplicate creation after an uncertain response.

Incorrect Answers

B:

The agent could replay a previously completed action. A prompt alone cannot distinguish pending from committed work.

C:

Assumed success can hide missing tickets. The state must distinguish confirmation from uncertainty.

D:

New identifiers make deduplication impossible and can create multiple tickets for one request.

Question 126

A repository has a root CLAUDE.md requiring all tests to run. A nested documentation directory includes style rules for only Markdown files. A developer asks for a CSS change. What instruction usage is appropriate?

  1. Treat any comment in a source file as a new system instruction overriding tracked project policy.
  2. Apply relevant root policies and load nested rules only when their file scope matches the work.
  3. Use only the nested Markdown rule for every file because it is geographically nearest to the repo root.
  4. Discard the root testing policy whenever any nested rule exists.

Explanation

Correct Answer

B:

Instruction hierarchy and file path matter. Markdown-only conventions should not displace repository-wide tests for a CSS task.

Incorrect Answers

A:

Repository content can contain untrusted text. It should not silently rewrite the assistant’s instruction authority.

C:

The rule scope does not apply to CSS. Scope matching prevents unrelated instructions from taking precedence.

D:

Nested rules do not automatically cancel unrelated global requirements. The common testing contract still applies.

Question 127

A technical support conversation contains many logs, but the latest approved next action is “wait for the customer to confirm a maintenance window.” A compaction keeps logs but drops this pending dependency. What should the summary retain?

  1. Only the oldest technical logs because they occupy most of the transcript.
  2. Record maintenance as the next action but omit whether customer approval of the window is still pending.
  3. A generic statement that everyone agrees the server needs attention.
  4. A compact outstanding-action record with the owner, required confirmation, current state and relevant supporting evidence.

Explanation

Correct Answer

D:

State summaries must preserve what happens next, not just historical facts. The pending approval prevents premature maintenance.

Incorrect Answers

A:

Logs may explain diagnosis but do not preserve the required permission to proceed. The active dependency is consequential.

B:

Remembering that maintenance is needed does not preserve the condition that prevents premature execution. The summary must explicitly retain the unresolved customer confirmation and responsible owner.

C:

Vague intent does not capture the maintenance window or its owner. The next agent needs an actionable requirement.

Question 128

A team asks Claude Code to locate all YAML workflow definitions in a large repository for a policy check. Which built-in tool is the most direct first step?

  1. Use Write to create new workflow files before discovering existing ones.
  2. Run a shell command that removes old workflow directories and recreates them.
  3. Read every binary and source file under the repository root.
  4. Use Glob with a workflow path pattern, then Read the identified YAML files for inspection.

Explanation

Correct Answer

D:

Filename globbing locates candidate files without reading unrelated content. Reading matched files provides evidence for policy evaluation.

Incorrect Answers

A:

Creating files does not find the original workflows and may create duplicate or conflicting configuration.

B:

Destructive changes are unrelated to the requested inventory. Discovery should be read-only.

C:

A global read is wasteful and may exhaust context. A filename pattern provides a smaller evidence set.

Question 129

A developer creates a code-generation skill whose instructions require users to supply a target language. It activates on every “write” request, including emails. Which improvement is appropriate?

  1. Guess the language from the most recent unrelated conversation.
  2. Silently assume all generated work is Python regardless of request.
  3. Narrow the skill description/trigger to code-generation requests and define a required language input or safe clarification.
  4. Expand its trigger to every conversation so the language is always requested.

Explanation

Correct Answer

C:

Skills should activate for intended tasks only. Specific descriptions and input requirements reduce accidental interference with unrelated writing.

Incorrect Answers

A:

Stale context can produce the wrong implementation. Required inputs should come from the task.

B:

A hard-coded language violates users’ actual needs. Skill triggers and parameter handling should preserve intent.

D:

Broader activation increases irrelevant interruptions. A code skill should not affect emails or general discussion.

Question 130

A project hosts v1 and v2 API handlers in distinct directories. The older version requires legacy response envelopes; the newer uses typed JSON error objects. What is the best project-rule design?

  1. Apply path-scoped conventions to each API subtree while keeping common authentication rules shared.
  2. Use v2 response rules for every handler and assume old clients adapt.
  3. Remove all error-handling instructions to avoid conflict.
  4. Put both conflicting envelope rules in a single unconditional root directive.

Explanation

Correct Answer

A:

Conditional file rules encode version-specific contracts without contaminating unrelated handlers. Common security practices can remain repository-wide.

Incorrect Answers

B:

Legacy clients may depend on the v1 envelope. Cross-version rule leakage can break compatibility.

C:

Absence of rules makes output inconsistent and does not protect either public contract.

D:

Simultaneous incompatible instructions leave the model unable to choose correctly. Scope matters.

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