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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 18

Question 170

A batch extraction request includes short receipts and huge multi-page contracts. Large items repeatedly exceed context limits and fail the whole partition. Which design improves throughput?

  1. Give each request the same ID so outputs are easier to sort.
  2. Estimate per-item size, partition into bounded independent requests, and apply documented limits with traceable item IDs.
  3. Concatenate documents until the service rejects the batch, then retry identically.
  4. Discard large contracts silently while reporting the batch as complete.

Explanation

Correct Answer

B:

Size-aware partitioning avoids predictable overflows. Per-item status lets the caller resubmit only failed inputs.

Incorrect Answers

A:

Duplicate identifiers destroy per-item reconciliation. IDs must be stable and distinct.

C:

Repeating an oversized request cannot solve the capacity violation. The workload must be split.

D:

Dropping records creates an inaccurate completeness claim. Oversized items require separate handling.

Question 171

A software team wants one agent to implement a fix and another to check the diff. The implementer’s own summary is very confident, but regression risks remain. What review arrangement is best?

  1. Have a separate reviewer inspect the actual changed code, requirements and tests without treating the implementer’s confidence as proof.
  2. Ask the implementer to praise its own patch and consider that a security audit.
  3. Approve whenever the generated summary contains the phrase “fully tested”.
  4. Let the reviewer see only the implementer’s summary but not the code changes.

Explanation

Correct Answer

A:

A second pass can detect errors omitted from the author’s narrative. Evidence-based review needs the real diff and independent checks.

Incorrect Answers

B:

Self-affirmation is not independent scrutiny. The patch requires concrete tests and critique.

C:

A claim about testing is not execution evidence. The review should inspect actual results.

D:

Without the diff, it cannot validate the claimed behavior. Source and tests are necessary.

Question 172

A billing tool sometimes returns `amount="1,200"` and sometimes `amount=1200.00` with a currency string. What should the hook do before the assistant summarizes totals?

  1. Concatenate returned amount strings into one display value.
  2. Silently interpret any punctuation as a decimal separator without checking locale.
  3. Normalize validated numeric values and ISO currency to a common typed representation, preserving source for audit and failing on ambiguity.
  4. Remove currency labels and sum every number as dollars.

Explanation

Correct Answer

C:

Typed post-tool normalization prevents accidental string concatenation or currency mixing. Ambiguous formats should remain errors rather than guesses.

Incorrect Answers

A:

String operations are not monetary arithmetic and can produce nonsensical totals. Numeric types are needed.

B:

The comma may be a thousands or decimal mark. Locale-sensitive ambiguity must be resolved with context.

D:

Different currencies are not interchangeable. Loss of currency information makes totals incorrect.

Question 173

A sales assistant has discussed discounts, delivery dates and privacy terms for two weeks. After context compaction it remembers the discount but loses the unapproved privacy clause. What should its durable state include?

  1. A generic statement that negotiations are complete once a price was discussed.
  2. All email text without any status markers or source organization.
  3. A structured decision register listing accepted, rejected and pending clauses, source references and responsible parties.
  4. Only the most attractive commercial term from the conversation.

Explanation

Correct Answer

C:

A decision register preserves outstanding negotiation state across long conversations. The assistant can distinguish agreed terms from proposals.

Incorrect Answers

A:

Price agreement does not establish acceptance of privacy or delivery terms. State must be explicit.

B:

Raw transcripts can be useful but may bury decisions and contradictions. A structured register supports reliable continuation.

D:

A favorable discount is not a full contract. Losing pending clauses risks an unauthorized commitment.

Question 174

An automated Claude Code review job encounters a model API outage. The wrapper prints “no issues found” because the result JSON is empty. What is the correct pipeline behavior?

  1. Generate a fabricated positive review to keep deployments on schedule.
  2. Delete the CI job so outages cannot occur.
  3. Distinguish invocation failure from an analyzed clean result, return a nonzero or retryable status, and preserve diagnostic evidence.
  4. Mark the pull request approved whenever the API returns an empty body.

Explanation

Correct Answer

C:

An unavailable reviewer cannot certify a diff. CI should block or follow its documented retry policy rather than convert missing analysis into approval.

Incorrect Answers

A:

Invented evidence undermines the safety gate. Failures must be disclosed.

B:

Removing a check avoids the error signal but sacrifices required review. The workflow should handle failure explicitly.

D:

Empty output can indicate a service failure. It is not an affirmative clean review.

Question 175

A coordinator delegates a broad market analysis to a research worker. That worker recursively spawns many near-identical subagents, exhausting the project budget. What is the best control?

  1. Treat every spawned agent as an independent project with no central accounting.
  2. Apply host-enforced limits on depth, fan-out and total tokens or cost, with clear termination feedback to each worker.
  3. Rely only on a sentence that says workers should be economical.
  4. Allow unlimited spawning until a cloud billing alarm activates.

Explanation

Correct Answer

B:

Recursive delegation needs explicit resource boundaries. A supervisor can then consolidate partial evidence instead of continuing unbounded copies.

Incorrect Answers

A:

Uncoordinated budgets hide total resource use. The parent must enforce global limits.

C:

A prompt may help ordinary behavior but cannot guarantee resource ceilings. Enforcement must happen in orchestration.

D:

A late billing alert cannot prevent runaway execution. Limits should be checked before delegation.

Question 176

A file-cleanup agent is allowed to show which files would be deleted before the user approves. The current `cleanup` tool always deletes even when `dry_run=true`. What tool contract is needed?

  1. Document `dry_run=true` as a preview but leave destructive implementation unchanged.
  2. Delete one sample file during every preview to prove permissions work.
  3. Default to full deletion when approval status is missing.
  4. Implement a side-effect-free preview operation returning planned paths and a separate authorized execution call.

Explanation

Correct Answer

D:

Preview must be guaranteed not to mutate files. Explicit separation lets the user inspect a plan before approval.

Incorrect Answers

A:

A misleading contract is dangerous. The backend must honor its stated semantics.

B:

A preview should not have hidden side effects. Permission validation can be nondestructive.

C:

Missing authorization should fail closed. Destructive behavior must require explicit verified intent.

Question 177

A paginated knowledge-search MCP tool returns 40 records and then fails fetching the next page. The client receives a generic success with 40 records, assuming the search is complete. What response is appropriate?

  1. Discard all 40 records and replace them with fabricated placeholders.
  2. Repeat page one on every retry and append duplicates.
  3. Return the 40 valid records with an explicit incomplete status, continuation cursor and error details for the failed page.
  4. Return only the 40 records and a completed=true flag.

Explanation

Correct Answer

C:

Partial results can be useful when labeled correctly. The caller can resume at the failing cursor without reporting full coverage.

Incorrect Answers

A:

Invented records destroy data quality. Valid results should be preserved with a partial status.

B:

Without cursor handling, retries can duplicate items and never reach the missing page. Resume from the failed position.

D:

The omitted pages could contain relevant evidence. Success without a completeness marker is misleading.

Question 178

A coordinator assigns a code-review subagent to inspect tests. Its tool registry includes a web search, a payment API and local file reading. Which tool set should it receive?

  1. Provide the subagent read access and an unrestricted shell for convenient test inspection.
  2. File-reading and targeted search tools needed for the tests, with payment excluded and write tools gated separately.
  3. Every tool in the environment, including payment, to maximize capability.
  4. Only the payment tool, because it returns structured JSON.

Explanation

Correct Answer

B:

Role-specific tools match actual duties. Excluding payment reduces exposure to unrelated side effects.

Incorrect Answers

A:

A general shell can change files or invoke unrelated commands, exceeding read-only review needs. Narrow file/search tools are a better default, with any necessary execution separately constrained and approved.

C:

More tools do not necessarily improve a read-only review. Extra permissions create risk.

D:

Structured format is irrelevant to the requested code evidence. The tool must serve the delegated task.

Question 179

Two MCP servers each advertise a tool named `search` but one queries internal tickets and the other searches public documentation. An agent sometimes sends private ticket identifiers to the public server. What integration safeguard is best?

  1. Namespace and describe tools by server and data boundary, and route calls with explicit permission checks.
  2. Use whichever `search` tool was registered most recently.
  3. Send every query to both servers and select the fastest result.
  4. Remove server identifiers from logs to make collisions less visible.

Explanation

Correct Answer

A:

Distinct identities prevent ambiguous selection. The host should enforce where private identifiers may be sent.

Incorrect Answers

B:

Registration order does not establish data sensitivity or task relevance. It can route secrets to the wrong service.

C:

Fan-out exposes private input to a public endpoint. Data classification must govern routing.

D:

Logs are needed to diagnose incorrect routing. The remedy is precise naming and authorization.

Question 180

An HR workflow requests immediate deprovisioning, but an active legal hold requires preserving the employee’s records. The agent cannot determine whether deletion is authorized. Which escalation path fits?

  1. Assume the legal hold is invalid because it conflicts with a workflow task.
  2. Suspend access if authorized, preserve records, and escalate the deletion decision to the legal/data owner.
  3. Delete all records because the employment status changed.
  4. Keep active privileged access indefinitely to protect the records.

Explanation

Correct Answer

B:

Access revocation and data deletion are different operations. Separating them preserves evidence while addressing account risk.

Incorrect Answers

A:

Conflicting instructions require authority resolution, not a model inference. Escalation is appropriate.

C:

Offboarding does not automatically override legal retention duties. Deletion may violate the hold.

D:

Records can be preserved without leaving access enabled. Unnecessary permissions are a separate risk.

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