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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 10

Question 90

A travel-support agent handles a canceled ticket and a separate meal reimbursement. After compaction it merges both amounts and claims they share the same deadline. How should the application structure retained state?

  1. Assume the latest date encountered belongs to every issue.
  2. Store issue-specific facts with separate amounts, currencies, dates, source evidence and statuses, and include them in each follow-up.
  3. Keep one combined free-form paragraph without issue identifiers.
  4. Round all amounts to the nearest hundred to reduce context tokens.

Explanation

Correct Answer

B:

Multiple cases require explicit boundaries. Structured facts prevent a later summary from conflating independent obligations.

Incorrect Answers

A:

Recency does not establish which deadline applies. Each issue should retain its own sourced timeline.

C:

An undifferentiated summary can merge details from different claims. Separate keyed records preserve accountability.

D:

Financial precision matters to reimbursement. Rounding loses the source facts needed for correct decisions.

Question 91

A coordinator launches a billing-investigation subagent for customer A. The parent context also contains unrelated personal records for customers B and C. What should be supplied to the subagent?

  1. A prewritten resolution claiming customer A received a refund, so the subagent can confirm it.
  2. A bounded task description with customer A identifiers, the approved facts needed to investigate, and an explicit output contract.
  3. The entire parent transcript including every customer so the subagent can decide what to ignore.
  4. Only the phrase “investigate billing” without a case ID or permission scope.

Explanation

Correct Answer

B:

Subagents need sufficient relevant information to complete their delegated task, not the whole conversation. A narrow context reduces leakage and makes the returned findings easier to validate.

Incorrect Answers

A:

Supplying an unverified conclusion biases the investigation. Delegate evidence collection with facts and permitted actions, then let the coordinator evaluate findings.

C:

Broad disclosure unnecessarily exposes unrelated customers. Scope and input permissions should be enforced before delegation rather than relying on voluntary omission.

D:

An underspecified request invites guessing about which record is authorized. A case identifier and objective must accompany the delegated work.

Question 92

A support agent has both reversible account suspension and irreversible account deletion actions. The current tool interface names both “changeAccount”, with a boolean flag. Which redesign best prevents unintended deletion?

  1. Define explicit suspendAccount and deleteAccount tools with unambiguous descriptions, narrow parameters, and stronger approval on deletion.
  2. Keep one generic tool and describe it as “does everything needed for accounts”.
  3. Use the same generic name but change its internal deletion behavior without updating the schema.
  4. Have the deletion tool always execute when either parameter is missing.

Explanation

Correct Answer

A:

Distinct names make destructive effects visible to the model and reviewers. A deletion contract can require identity, authorization and confirmation without hiding risk in a boolean.

Incorrect Answers

B:

Vague descriptions remove the critical behavioral distinction. The model needs a reliable mapping from intent to specific allowed side effects.

C:

An unseen change can cause old callers to invoke a newly destructive action. Contracts must be explicit, versioned and reviewed.

D:

Missing intent or required authorization should fail closed. Defaulting to the most destructive action is unsafe.

Question 93

A company MCP search tool returns an opaque “tool failed” whenever its upstream service sends HTTP 429. Agents waste time retrying every few milliseconds. Which structured response improves recovery?

  1. Return success with an empty result set regardless of failure.
  2. Return the full upstream authorization header to help debug the failure.
  3. Mark every 429 as permanent and instruct the user to recreate their account.
  4. Return a typed RATE_LIMITED error, a retryable indicator and bounded retry-after information, without leaking upstream secrets.

Explanation

Correct Answer

D:

Structured tool errors let the orchestrator apply backoff and respect limits. Retry metadata should be validated and capped so a server cannot force uncontrolled delays.

Incorrect Answers

A:

An empty success can be mistaken for “no matching records” and produces incorrect business decisions. Operational failure must remain distinguishable from a real no-result answer.

B:

Credentials do not help the agent schedule retries and create exposure. Sanitized error details should preserve troubleshooting context without secrets.

C:

Rate limiting is often temporary. A permanent business-level failure discards the opportunity for controlled retry after the indicated wait.

Question 94

An analyst assistant may answer from already-retrieved evidence or query one of several documentation tools. Product models have different support for forcing a particular tool. Which design handles this variability safely?

  1. Treat the presence of a tool name in the assistant prose as permission to execute it.
  2. Allow model-directed selection when supported, validate requested tools against a narrow allowlist, and enforce permissions in the host.
  3. Force an arbitrary named tool on every model even if the API rejects forced selection.
  4. Expose every administration tool globally so the assistant can pick from more options.

Explanation

Correct Answer

B:

Tool policies belong in the host regardless of model selection syntax. Capability-aware requests avoid assuming forced-tool modes exist for every model.

Incorrect Answers

A:

Text is not an authenticated tool invocation and may be untrusted. The host should parse structured calls and enforce its own authorization rules.

C:

Unsupported settings cause request failures, and a fixed tool may be irrelevant. Dispatch should respect actual model capabilities and task needs.

D:

Broad tool reach increases side-effect risk. A task-scoped allowlist is more reliable than maximum availability.

Question 95

A team publishes a reusable Claude Code MCP server configuration in its repository. A developer proposes putting a production bearer token directly in that file. What is the better integration pattern?

  1. Store only nonsecret server configuration in version control and inject scoped credentials through a managed secret environment.
  2. Commit the token but remove it from the next release tag.
  3. Encode the token using base64 inside the configuration.
  4. Put all developers on the same permanent production administrator token to simplify setup.

Explanation

Correct Answer

A:

Credential separation enables reviewable server settings without publishing reusable tokens. The runtime should receive the minimum secret scope and rotate it independently of repository changes.

Incorrect Answers

B:

Commit history and forks can retain the credential long after the current branch changes. The secret should never be placed in shared source.

C:

Encoding is not access control and can be reversed by anyone reading the file. It does not eliminate credential exposure.

D:

A shared high-privilege token undermines accountability and least privilege. Scoped identities and secret management are safer.

Question 96

An automation is asked to delete a workspace. Two valid identity records list different owners, and the requester provides no verified approval. Which action best balances progress and safety?

  1. Pause the destructive operation and request an authoritative ownership/approval determination while retaining the case state.
  2. Delete the workspace for the person whose record was most recently edited.
  3. Ask the model to pick the owner with the most confident-sounding biography.
  4. Execute deletion and ask a supervisor to investigate afterward.

Explanation

Correct Answer

A:

Conflicting ownership is material to authorization. A targeted escalation preserves progress without performing an irreversible action for an unverified principal.

Incorrect Answers

B:

Timestamp recency does not establish current authority. A wrong inference could permanently remove another group’s data.

C:

Linguistic plausibility is not a source of access rights. Authorization must be verified against a trusted policy and identity system.

D:

A post-hoc review cannot reliably reverse destroyed data. Material authorization ambiguity requires resolution before the side effect.

Question 97

A research coordinator delegates contract lookup to three subagents. One times out while the other two return no matching records. How should the aggregate result represent the timed-out source?

  1. Convert the timeout into an authentication failure without examining the cause.
  2. Carry a distinct partial-failure status with source identity, timeout, and retryability; do not state that all three sources were negative.
  3. Record all three as “no records found” to simplify the final JSON.
  4. Discard the two completed results because one worker did not finish.

Explanation

Correct Answer

B:

A timeout is unknown evidence, not a negative search result. Explicit propagation lets callers retry or qualify conclusions while using the two completed responses.

Incorrect Answers

A:

A timeout and permission denial require different remediation. Misclassification can send operators down an irrelevant troubleshooting path.

C:

Conflating operational failure with negative findings creates false certainty. Consumers need to know which source was not actually searched.

D:

The valid work remains useful if labeled appropriately. Loss of one source should not erase evidence from others.

Question 98

A developer asks an agent to find the function that validates invoice signatures in a monorepo containing millions of lines. Which exploration sequence is the most efficient?

  1. Use targeted filename and symbol searches, read the few matching regions, then follow imports and call sites as needed.
  2. Paste every file in the repository into the model context at once.
  3. Modify the first file whose name includes “signature” without reading it.
  4. Ask the model to remember the function from general training instead of examining this codebase.

Explanation

Correct Answer

A:

Search-first exploration narrows context to evidence-bearing files. Following a small dependency trail is cheaper and less confusing than loading the repository indiscriminately.

Incorrect Answers

B:

Most files will be irrelevant, and large dumps can displace critical details. Query-driven retrieval maintains focus.

C:

A matching filename does not prove it owns the validation behavior. Inspection and dependency tracing should precede changes.

D:

Repository implementations vary and may have been customized. Source inspection is necessary to locate the actual function.

Question 99

An expense assistant extracts a bank account from a scanned invoice. The account digits are partly obscured, and the assistant’s confidence score is low. What review design is appropriate?

  1. Route the ambiguous payment details to an authorized human verifier and block money movement until verification succeeds.
  2. Auto-fill the most common account number seen in earlier invoices.
  3. Make the transfer first and add a low-confidence warning to the receipt.
  4. Delete the original scan to reduce storage before review.

Explanation

Correct Answer

A:

Financial account errors have consequential side effects. Confidence-based human review plus a deterministic approval gate prevents guessing a recipient from unclear evidence.

Incorrect Answers

B:

Frequency cannot validate the current recipient and can redirect payments. The actual document needs confirmation.

C:

A warning after execution does not prevent a misdirected payment. Uncertain critical fields should block the action.

D:

Removing source evidence prevents the verifier from resolving ambiguity. Preserve the relevant artifact with appropriate access controls.

Question 100

An agent has finished an infrastructure assessment and must compare a conservative remediation plan with an aggressive one. Both alternatives need the same verified baseline and must remain separately reproducible. What is the best session strategy?

  1. Create two empty sessions without any reference to the verified assessment.
  2. Fork from the verified saved session into two isolated branches, preserving each branch’s decisions and outputs.
  3. Run both plans sequentially in one mutable transcript and assume later findings do not affect the first.
  4. Replace the verified original session with the first proposed plan to save storage.

Explanation

Correct Answer

B:

A shared starting state followed by independent histories permits a fair comparison. Neither experiment should overwrite the other or the original evidence.

Incorrect Answers

A:

Without baseline facts, the plans may rest on incompatible assumptions. Branching from a shared verified state is more consistent.

C:

State leakage makes results hard to attribute to one plan. Separate branches protect the experimental conditions.

D:

Destroying the baseline removes the ability to reproduce or compare decisions. The original session should remain immutable.

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