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CCAR-P · Examen de práctica

63 preguntas · 120 minutos · corte 720/1000

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1. Selecciona 2

D2 · Modelos, prompting e ingeniería de contexto

An application's system prompt is stable but its cache hit rate sits at only 40%. Which TWO changes are most likely to raise it?

2. Selecciona UNA

D7 · Productividad del desarrollador

Reviews of AI-authored pull requests almost never raise findings, yet defects keep reaching production. What is the most likely cause?

3. Selecciona UNA

D7 · Productividad del desarrollador

An agent in production starts calling an unexpected tool on a minority of requests. What does the on-call engineer do first?

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D7 · Productividad del desarrollador

A developer joins a team that works with AI assistance daily. What gets them productive fastest?

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D1 · Diseño de solución y arquitectura

A fixed workflow for supplier onboarding now fails on roughly a fifth of cases, where staff step in manually to finish the job. Which TWO signals would justify moving this stage to an autonomous agent?

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D1 · Diseño de solución y arquitectura

A supervisor coordinates four specialist agents in a regulated claims process. Which TWO responsibilities belong to the supervisor rather than to the specialists?

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D1 · Diseño de solución y arquitectura

An architect is splitting a long analysis task into sequenced subtasks. Which TWO practices make the decomposition real rather than cosmetic?

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D1 · Diseño de solución y arquitectura

A sponsor asks the architect to justify the investment in business terms. Which TWO framings belong in that justification?

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D1 · Diseño de solución y arquitectura

Which TWO conditions indicate that a single augmented model call is enough, with no workflow or agent around it?

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D1 · Diseño de solución y arquitectura

A quoting solution was designed as input, processing, and output, with no further stage. Six months in, nobody can say whether quote accuracy has improved or degraded. What is missing from the architecture?

11. Clasifica cada fila

D1 · Diseño de solución y arquitectura

For each situation, identify who should decide the next step.

# Escenario Tu respuesta
1 The five stages of a monthly regulatory report that has not changed in two years.
2 Which log query to run next while diagnosing a production outage.
3 Whether to release a payment that exceeds the agreed approval threshold.
4 The order in which four specialist agents run inside a regulated pipeline.
5 How many sources to consult before answering an open research question.

Opciones: the architect, at design time · the model, at run time · a human reviewer, per case

12. Selecciona UNA

D1 · Diseño de solución y arquitectura

An assistant handles two kinds of request: simple status lookups that arrive constantly, and complex disputes that need deep analysis. Which design serves both?

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D1 · Diseño de solución y arquitectura

A pipeline extracts data, transforms it and writes it to a system of record. Where does validation belong?

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D1 · Diseño de solución y arquitectura

A due-diligence review must cover environmental, legal and financial angles. Which TWO facts justify separate agents rather than one?

15. Clasifica cada fila

D1 · Diseño de solución y arquitectura

For each situation, identify the architecture that fits.

# Escenario Tu respuesta
1 Turning each inbound invoice into a ledger entry, with the vendor record supplied.
2 A quarterly audit pack produced through the same six steps every quarter.
3 Chasing why a shipment was mis-routed, where each answer opens the next query.
4 A plant expansion review needing environmental, legal and civil assessments.
5 Rewriting each job advert into the company tone, with the style guide attached.

Opciones: single augmented call · fixed workflow · autonomous agent · multi-agent system

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D2 · Modelos, prompting e ingeniería de contexto

Which TWO practices make the guardrails written into a system prompt more likely to hold?

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D2 · Modelos, prompting e ingeniería de contexto

A team must cut token spend on a retrieval-heavy assistant without losing answer quality. Which TWO moves fit that goal?

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D2 · Modelos, prompting e ingeniería de contexto

Which TWO tasks are the best candidates for chain-of-thought prompting?

19. Selecciona UNA

D2 · Modelos, prompting e ingeniería de contexto

A summarisation feature runs on the largest model in the family. Evaluation shows a mid-tier model matches its quality on this task at a third of the cost. What should the architect do?

20. Clasifica cada fila

D2 · Modelos, prompting e ingeniería de contexto

For each symptom, identify the technique that fixes it.

# Escenario Tu respuesta
1 Output format is close but inconsistent from one run to the next.
2 A critical rule buried in 12,000 tokens of context is followed erratically.
3 The same 9,000-token policy block is re-sent and re-charged on every call.
4 Answers about the middle of a large document are unreliable and expensive.
5 The house table layout is described in prose but never reproduced exactly.

Opciones: few-shot examples · move the rule to an edge · prompt caching · retrieve only what is relevant

21. Selecciona UNA

D2 · Modelos, prompting e ingeniería de contexto

A classification task has eight well-defined categories and clear written definitions for each. Accuracy is already high without examples. What follows?

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D2 · Modelos, prompting e ingeniería de contexto

A support conversation runs long and the earliest messages start falling out of the window. What preserves quality?

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D3 · Integración

A support agent has a tool that can delete customer records. Which TWO changes reduce the blast radius without removing the capability from the platform?

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D3 · Integración

An architect is choosing between MCP and direct API integration for a new internal system. Which TWO facts about the situation point to MCP?

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D3 · Integración

A platform team is defining what every agent session must emit for observability. Which TWO elements matter most for finding failures later?

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D3 · Integración

A RAG assistant returns passages that are topically related but rarely answer the question. Which TWO changes address this directly?

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D3 · Integración

An assistant reads documents that belong to individual users. Which TWO conditions make per-user credentials mandatory rather than optional?

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D3 · Integración

Which TWO symptoms suggest that a RAG pipeline's chunking strategy is the problem, rather than the model or the prompt?

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D3 · Integración

A team wants to expose forty internal endpoints to an agent. Tool-selection accuracy in testing drops sharply past roughly a dozen tools. What is the sound design response?

30. Clasifica cada fila

D3 · Integración

For each failure, identify which stage of the retrieval pipeline is at fault.

# Escenario Tu respuesta
1 A clause is retrieved without the definition it depends on, which sits two sections away.
2 Answers still quote a policy that was replaced during last night's refresh.
3 An exact serial number returns visually similar but incorrect products.
4 A contractor receives a passage from a document restricted to full employees.
5 Passages consistently break in the middle of a numbered list of conditions.

Opciones: chunking · indexing · search strategy · access control

31. Selecciona UNA

D3 · Integración

A retrieval index holds documents from many client organisations. What keeps one client from ever seeing another's content?

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D3 · Integración

A knowledge base gets edits all day long, and the assistant must reflect them within minutes. What indexing approach fits?

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D3 · Integración

An agent confuses three tools whose descriptions all begin with 'Looks up records'. Which TWO changes fix the selection?

34. Clasifica cada fila

D3 · Integración

For each need, identify the connection mechanism that fits.

# Escenario Tu respuesta
1 Four internal products need the same standard access to the payroll system.
2 A scheduled job copies yesterday's transactions into the data warehouse.
3 A carrier's agent and a retailer's agent negotiate delivery windows.
4 A new compliance archive should be reachable by any future agent.
5 A billing service calls the model once to tag each incoming invoice.

Opciones: MCP server · direct API integration · agent-to-agent protocol

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D4 · Evaluación, testing y optimización

A team is adding production evaluation to a live assistant. Which TWO practices give a trustworthy ongoing signal?

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D4 · Evaluación, testing y optimización

A latency-sensitive feature must get faster without a measurable quality loss. Which TWO levers fit?

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D4 · Evaluación, testing y optimización

Quality has slipped over three weeks with no deploys. Which TWO findings would confirm input drift as the cause?

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D4 · Evaluación, testing y optimización

A team is standing up an LLM-as-judge to score tone at scale. Which TWO steps keep the judge trustworthy over time?

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D4 · Evaluación, testing y optimización

A canary is running for a new model version. Which TWO signals should gate the decision to widen the rollout?

40. Selecciona UNA

D4 · Evaluación, testing y optimización

A prompt change scored six points better offline. The team wants production evidence before switching everyone. Which mechanism answers the question they are actually asking?

41. Clasifica cada fila

D4 · Evaluación, testing y optimización

For each metric, identify what it tells you about a production system.

# Escenario Tu respuesta
1 Share of answers where retrieval found no grounded passage.
2 Number of formal complaints filed through the support portal.
3 Average tokens consumed per completed session.
4 Percentage of requests that returned a server error.
5 Average relevance score of the passages passed to the model.

Opciones: leading indicator of quality · lagging indicator of quality · cost signal · availability signal

42. Selecciona UNA

D4 · Evaluación, testing y optimización

A summarisation feature needs a quality metric that can run on every output. What is the sound choice?

43. Selecciona UNA

D4 · Evaluación, testing y optimización

Prompts change several times a week. Running the full evaluation suite on each change takes two hours. What is the sensible arrangement?

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D4 · Evaluación, testing y optimización

An assistant will operate in a regulated insurance context. Which TWO components must the pre-launch evaluation include?

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D5 · Gobernanza, seguridad y riesgo

A drafting assistant must never state a delivery date that is not in the logistics system. Which TWO controls enforce that?

46. Selecciona UNA

D5 · Gobernanza, seguridad y riesgo

An agent that books travel has a tool that can cancel existing reservations. Where does the human approval gate belong?

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D5 · Gobernanza, seguridad y riesgo

A customer exercises their right to erasure. The company keeps full conversation traces for auditing. How is that resolved at design time?

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D5 · Gobernanza, seguridad y riesgo

A guardrail is blocking legitimate requests along with the harmful ones, and users are complaining. What is the correct response?

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D5 · Gobernanza, seguridad y riesgo

An architecture routes customer data through three third-party services. What does the risk assessment have to cover?

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D5 · Gobernanza, seguridad y riesgo

An automated decision affects whether a person receives a benefit. What does the design owe that person?

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D5 · Gobernanza, seguridad y riesgo

A subsidiary streams full patient support chats, names included, to a quality-analytics vendor abroad. The data protection officer objects.

52. Selecciona UNA

D5 · Gobernanza, seguridad y riesgo

A scholarship-scoring assistant rates applicants from certain school districts lower. Names and demographic fields were already stripped from the input.

53. Selecciona UNA

D5 · Gobernanza, seguridad y riesgo

A security review finds that a sentence inside an indexed supplier document changed how the agent behaved.

54. Selecciona 2

D6 · Comunicación con stakeholders y ciclo de vida

A discovery workshop is being planned with a client who has already chosen a solution. Which TWO outcomes make the workshop worth running?

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D6 · Comunicación con stakeholders y ciclo de vida

A client asks for a firm launch date before the evaluation dataset exists. What does the architect commit to?

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D6 · Comunicación con stakeholders y ciclo de vida

A client's risk committee asks to see exactly how the assistant reaches its answers. What does the architect provide?

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D6 · Comunicación con stakeholders y ciclo de vida

A pilot exceeded its targets and the sponsor wants to roll it out to the whole organisation next month. What does the architect raise first?

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D6 · Comunicación con stakeholders y ciclo de vida

During design, a promising approach was evaluated and discarded. Should that appear in the documentation?

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D6 · Comunicación con stakeholders y ciclo de vida

A client wants an SLA that covers answer accuracy the same way it covers uptime. How should the architect respond?

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D6 · Comunicación con stakeholders y ciclo de vida

A finance director orders the cheapest model for a filing that feeds the regulator. Testing shows it errs materially more often on that task.

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D6 · Comunicación con stakeholders y ciclo de vida

A client demands answers in under a second from a pipeline that retrieves, reasons and verifies. Engineering measures three seconds.

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D6 · Comunicación con stakeholders y ciclo de vida

Three months after launch the sponsor is losing interest: the monthly report shows tokens, uptime and average latency.

63. Selecciona UNA

D7 · Productividad del desarrollador

An AI coding assistant needs access to a service that requires an API key. How is that handled?