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Claude Certified Architect – Foundations Question and Answers

Claude Certified Architect – Foundations

Last Update Jul 14, 2026
Total Questions : 60

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Questions 1

You are using Claude Code to accelerate software development. Your team uses it for code generation, refactoring, debugging, and documentation. You need to integrate it into your development workflow with custom slash commands, CLAUDE.md configurations, and understand when to use plan mode vs direct execution.

You’re implementing a complex graph traversal algorithm with specific performance requirements and edge cases to handle (disconnected nodes, cycles, weighted edges). You want to structure your workflow for efficient iterative refinement with Claude.

What approach will most effectively enable progressive improvement across multiple iterations?

Options:

A.  

Have Claude extensively research the algorithm and create a detailed implementation plan using extended thinking, then implement the complete solution based on that plan.

B.  

Provide Claude with a reference implementation from documentation, then ask it to rewrite the code to match your codebase style and add the required edge case handling, comparing outputs against the reference.

C.  

Write a test suite covering expected behavior, edge cases, and performance requirements before implementation. Ask Claude to write code that passes the tests, then iterate by sharing test failures with each refinement request.

D.  

Provide Claude with a detailed natural language specification of the algorithm, including all requirements and edge cases. Review each output manually and provide descriptive feedback on what behavior needs to change.

Discussion 0
Questions 2

You are using Claude Code to accelerate software development. Your team uses it for code generation, refactoring, debugging, and documentation. You need to integrate it into your development workflow with custom slash commands, CLAUDE.md configurations, and understand when to use plan mode vs direct execution.

A security audit requires updating your authentication library from v2 to v3. The migration guide documents breaking changes: authenticate() now returns a Promise instead of accepting a callback, the User type has restructured fields, and three deprecated methods were removed. Grep shows the library is imported in 45 files across several modules.

What’s the most effective approach?

Options:

A.  

Create a custom slash command encapsulating the migration transformations, then execute it against each file without prior codebase exploration.

B.  

Update the dependency version, run the test suite, and use Claude Code to fix each failure as it appears.

C.  

Enter plan mode to explore library usage across modules, map affected code paths, then create a migration strategy before implementing.

D.  

Paste the migration guide’s breaking changes into your prompt and use direct execution to update all usages across the 45 files.

Discussion 0
Questions 3

You are building developer productivity tools using the Claude Agent SDK. The agent helps engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate code, and automate repetitive tasks. It uses the built-in tools (Read, Write, Bash, Grep, Glob) and integrates with Model Context Protocol (MCP) servers.

Your code review assistant needs to analyze pull requests and provide feedback on three aspects: code style compliance, potential security issues, and documentation completeness. Each aspect requires reading files, running analysis tools, and generating a report section. The review process follows the same three-step workflow for every PR.

Which task decomposition pattern is most appropriate for this workflow?

Options:

A.  

Single comprehensive prompt—include all three instructions in one prompt and let the model handle all three aspects simultaneously.

B.  

Orchestrator-workers—have a central LLM analyze each PR to dynamically determine which checks are needed, then delegate to specialized worker LLMs for each identified subtask.

C.  

Prompt chaining—break the review into sequential steps where each aspect (style, security, documentation) is analyzed separately, with outputs combined in a final synthesis step.

D.  

Routing—classify each PR by type (feature, bugfix, refactor) first, then route to different review prompts optimized for that category.

Discussion 0
Questions 4

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools ( get_customer , lookup_order , process_refund , escalate_to_human ). Your target is 80%+ first-contact resolution while knowing when to escalate.

A customer contacts the agent about a warranty claim on a power drill. Resolving this requires multiple sequential tool calls: get_customer to look up their account, lookup_order to find the purchase details, and then either process_refund or escalate_to_human depending on warranty eligibility. You’re implementing the agentic loop that orchestrates these steps using the Claude API.

What is the primary mechanism your application uses to determine whether to continue the loop or stop?

Options:

A.  

You check whether Claude’s response contains a text content block—if text is present, the agent has produced its final answer and the loop should exit.

B.  

You manually set the tool_choice parameter to "none" after the final expected tool call to force Claude to stop requesting tools.

C.  

You check the stop_reason field in each API response—the loop continues while it equals "tool_use" and exits when it changes to "end_turn" or another terminal value.

D.  

You track the number of tool calls made and exit the loop once a preconfigured maximum is reached.

Discussion 0
Questions 5

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools (get_customer, lookup_order, process_refund, escalate_to_human). Your target is 80%+ first-contact resolution while knowing when to escalate.

Production logs show that when the agent handles complex billing disputes requiring 6+ tool calls, it sometimes exhausts its max_turns limit after gathering data but before completing resolution or escalating. The team’s goal is to guarantee that every customer interaction ends with either a completed resolution or a human handoff, regardless of how the agent loop terminates.

Which approach achieves this guarantee?

Options:

A.  

Implement a pre-tool-use hook that counts tool invocations and terminates the loop with an automatic escalation once the agent reaches 80% of its max_turns limit.

B.  

Split the workflow into two sequential agent invocations—a first agent gathers information via get_customer and lookup_order, then a second agent receives that data and handles process_refund or escalate_to_human, each with separate turn budgets.

C.  

Add orchestration-layer code that checks the agent’s outcome after each loop termination—if the loop ended without a completed resolution or escalation, programmatically call escalate_to_human with the accumulated conversation context and tool results.

D.  

Add system prompt instructions telling the agent to call escalate_to_human with a summary of its findings whenever it determines it cannot complete resolution within its remaining actions.

Discussion 0
Questions 6

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools (get_customer, lookup_order, process_refund, escalate_to_human). Your target is 80%+ first-contact resolution while knowing when to escalate.

A customer returns 4 hours after their initial session about the same billing dispute. The previous 32-turn session contains lookup_order results showing “Status: PENDING, Expected resolution: 24–48 hours.” In testing, you observe that when resuming sessions with stale tool results, the agent often references the outdated data in responses (e.g., “I see your refund is still being processed”) even after subsequent fresh tool calls return different information.

What approach most reliably handles returning customers?

Options:

A.  

Resume with full history and configure the agent to automatically re-call all previously used tools at session start to ensure data freshness.

B.  

Resume with full history and add a system prompt instruction telling the agent to always prefer the most recent tool results when multiple calls to the same tool exist in context.

C.  

Resume with full history but filter out previous tool_result messages before resuming, keeping only the human/assistant turns so the agent must re-fetch needed data.

D.  

Start a new session, inject a structured summary of the previous interaction (issue type, actions taken, resolution status), then make fresh tool calls before engaging.

Discussion 0
Questions 7

You are building developer productivity tools using the Claude Agent SDK. The agent helps engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate code, and automate repetitive tasks. It uses the built-in tools (Read, Write, Bash, Grep, Glob) and integrates with Model Context Protocol (MCP) servers.

You’ve configured your Claude agent with three MCP servers: one for git operations, one for Jira ticket management, and one for documentation search.

When a user asks the agent to “create a branch for JIRA-123 and add documentation links to the ticket,” how does the agent access tools across these servers?

Options:

A.  

Tools from all configured MCP servers are discovered at connection time and available simultaneously to the agent.

B.  

The agent queries each server sequentially to determine which handles each tool, routing calls based on tool name prefixes.

C.  

The agent automatically selects the most relevant server based on the request and loads only that server’s tools.

D.  

You must specify which MCP server to use for each turn, and the agent can only access one server’s tools at a time.

Discussion 0
Questions 8

You are building developer productivity tools using the Claude Agent SDK. The agent helps engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate code, and automate repetitive tasks. It uses the built-in tools (Read, Write, Bash, Grep, Glob) and integrates with Model Context Protocol (MCP) servers.

Your agent has analyzed a complex service module—reading 23 source files, tracing request flows, and identifying error handling patterns. A developer wants to compare two testing strategies before committing to one: end-to-end tests with mocked external services vs. snapshot tests capturing expected outputs. They need to independently develop both approaches to evaluate trade-offs.

How should you manage the sessions?

Options:

A.  

Resume the analysis session with fork_session enabled, creating a separate branch for each testing strategy.

B.  

Start two fresh sessions, having each re-read the relevant source files before beginning.

C.  

Continue in the original session, developing end-to-end tests first, then snapshot tests sequentially.

D.  

Export the analysis session’s key findings to a file, then create two new sessions that reference this file.

Discussion 0
Questions 9

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools ( get_customer , lookup_order , process_refund , escalate_to_human ). Your target is 80%+ first-contact resolution while knowing when to escalate.

When the agent calls lookup_order and receives order details showing the item was purchased 45 days ago, how does the agentic loop determine whether to call process_refund or escalate_to_human next?

Options:

A.  

The order details are added to the conversation and the model reasons about which action to take.

B.  

The orchestration layer automatically routes to the next tool based on the order’s status field.

C.  

The agent follows a pre-configured decision tree mapping order attributes to specific tool calls.

D.  

The agent executes the remaining steps in a tool sequence planned at the start of the request.

Discussion 0
Questions 10

You are building a structured data extraction system using Claude. The system extracts information from unstructured documents, validates the output using JavaScript Object Notation (JSON) schemas, and maintains high accuracy. It must handle edge cases gracefully and integrate with downstream systems.

Your extraction pipeline processes restaurant menus and must output structured JSON with fields for item names, descriptions, prices, and dietary tags. Some menus use inconsistent formatting—prices as “$12” vs “12.00”, dietary info as icons vs text.

What’s the most reliable approach?

Options:

A.  

Use separate extraction calls for each field to ensure consistent handling of each type.

B.  

Define a strict output schema and include format normalization rules in your prompt.

C.  

Request multiple extraction attempts per document and select the most common format.

D.  

Extract data as-is and normalize formats in post-processing code after Claude returns.

Discussion 0
Questions 11

You are building a structured data extraction system using Claude. The system extracts information from unstructured documents, validates the output using JavaScript Object Notation (JSON) schemas, and maintains high accuracy. It must handle edge cases gracefully and integrate with downstream systems.

Your system extracts event metadata (date, location, organizer, attendee_count) from news articles using a JSON schema with all nullable fields. During evaluation, you observe the model frequently generates plausible but incorrect values for fields not mentioned in the article—for example, outputting “500” for attendee_count when the source contains no attendance information.

What’s the most effective way to reduce these false extractions?

Options:

A.  

Upgrade to a more capable model tier with improved instruction-following to reduce hallucination tendencies.

B.  

Make all schema fields required (non-nullable) with strict validation rules to ensure the model only outputs verifiable data.

C.  

Add prompt instructions to return null for any field where information is not directly stated in the source.

D.  

Add a post-processing step using a second LLM call to verify each extracted value exists in the source document.

Discussion 0
Questions 12

You are building a structured data extraction system using Claude. The system extracts information from unstructured documents, validates the output using JavaScript Object Notation (JSON) schemas, and maintains high accuracy. It must handle edge cases gracefully and integrate with downstream systems.

Your extraction pipeline processes contracts that frequently include amendments. When a contract contains both original terms and later amendments (e.g., original clause specifies “30-day payment terms” while Amendment 1 changes this to “45 days”), the model inconsistently extracts one value or the other with no indication of which applies.

What’s the most effective approach to improve extraction accuracy for documents with amendments?

Options:

A.  

Preprocess documents with a classifier that identifies and removes superseded sections before the main extraction step.

B.  

Redesign the schema so amended fields capture multiple values, each with source location and effective date.

C.  

Add prompt instructions to always extract the most recent amendment value and ignore superseded original terms.

D.  

Implement post-extraction validation using pattern matching to detect amendments and flag those extractions for manual review.

Discussion 0
Questions 13

You are using Claude Code to accelerate software development. Your team uses it for code generation, refactoring, debugging, and documentation. You need to integrate it into your development workflow with custom slash commands, CLAUDE.md configurations, and understand when to use plan mode vs direct execution.

Your team frequently migrates React components to Vue. You’ve written a step-by-step workflow for Claude Code to follow during each migration, and you want every developer on the team to invoke it by typing /migrate-component . The workflow should stay in sync as the team iterates on it.

Where should you place the skill file?

Options:

A.  

In ~/.claude/skills/migrate-component/SKILL.md on each developer’s machine.

B.  

As a detailed instruction block in the project’s root CLAUDE.md file.

C.  

In the project’s .claude/settings.json using a skillOverrides entry to register and define the workflow.

D.  

In .claude/skills/migrate-component/SKILL.md at the project root, committed to version control.

Discussion 0
Questions 14

You are building developer productivity tools using the Claude Agent SDK. The agent helps engineers explore unfamiliar codebases, understand legacy systems, generate boilerplate code, and automate repetitive tasks. It uses the built-in tools (Read, Write, Bash, Grep, Glob) and integrates with Model Context Protocol (MCP) servers.

An engineer used Claude Code yesterday to investigate authentication flows in a legacy monolith, building up significant context over a 2-hour session. Today she wants to continue that specific investigation. She’s worked on three other codebases since then and knows the session was named “auth-deep-dive”.

How should she resume?

Options:

A.  

Use --session-id with the UUID from yesterday’s session transcript file

B.  

Use --continue to pick up where the most recent conversation left off

C.  

Start fresh and re-read the same files

D.  

Use --resume auth-deep-dive to load that specific session by name

Discussion 0
Questions 15

You are using Claude Code to accelerate software development. Your team uses it for code generation, refactoring, debugging, and documentation. You need to integrate it into your development workflow with custom slash commands, CLAUDE.md configurations, and understand when to use plan mode vs direct execution.

You’ve asked Claude to write a data migration script, but the initial output doesn’t correctly handle records with null values in required fields.

What’s the most effective way to iterate toward a working solution?

Options:

A.  

Add “think harder about edge cases” to your prompt and request a complete rewrite of the migration logic.

B.  

Manually edit the generated code to fix the null handling, then continue working with Claude on other parts.

C.  

Describe the null value problem in detail and ask Claude to regenerate the entire script with improved edge case handling.

D.  

Provide a test case with example input containing null values and the expected output, then ask Claude to fix it.

Discussion 0
Questions 16

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools ( get_customer , lookup_order , process_refund , escalate_to_human ). Your target is 80%+ first-contact resolution while knowing when to escalate.

During a billing dispute resolution, your agent successfully retrieves customer info via get_customer and order details via lookup_order , but when attempting to call process_refund , the tool returns a timeout error. The agent has enough information to explain the charges and verify refund eligibility, but cannot actually process the refund due to the backend failure.

What approach best balances first-contact resolution with appropriate error handling?

Options:

A.  

Implement automatic retries with exponential backoff for process_refund , keeping the conversation open until the refund is successfully processed.

B.  

Confirm the refund will be processed and close the conversation, since the system has all necessary information to complete it automatically.

C.  

Explain the billing, confirm refund eligibility, acknowledge the system issue preventing immediate processing, and offer escalation or retry later.

D.  

Escalate immediately to a human agent since the refund action cannot be completed.

Discussion 0
Questions 17

You are building a structured data extraction system using Claude. The system extracts information from unstructured documents, validates the output using JavaScript Object Notation (JSON) schemas, and maintains high accuracy. It must handle edge cases gracefully and integrate with downstream systems.

Your system has been operating with 100% human review for 3 months. Analysis shows that extractions with model confidence ≥90% have 97% accuracy overall. To reduce reviewer workload, you plan to automate high-confidence extractions.

Before deploying, what validation step is most critical?

Options:

A.  

Analyze accuracy by document type and field to verify high-confidence extractions perform consistently across all segments, not just in aggregate.

B.  

Compare accuracy at different confidence thresholds (85%, 90%, 95%) to find the optimal cutoff that maximizes automation while minimizing errors.

C.  

Verify that 97% accuracy meets requirements for all downstream systems that consume the extracted data.

D.  

Run a two-week pilot routing 25% of high-confidence extractions directly to downstream systems and monitor error reports.

Discussion 0
Questions 18

You are building a customer support resolution agent using the Claude Agent SDK. The agent handles high-ambiguity requests like returns, billing disputes, and account issues. It has access to your backend systems through custom Model Context Protocol (MCP) tools (get_customer, lookup_order, process_refund, escalate_to_human). Your target is 80%+ first-contact resolution while knowing when to escalate.

After expanding the agent’s MCP tools with delivery-specific capabilities (check_delivery_status, contact_driver, issue_credit, apply_promo_code, update_delivery_address, reschedule_delivery), the total tool count has grown from 4 to 10. Your evaluation suite shows tool selection accuracy has dropped from 88% to 71%. Log analysis reveals the majority of errors involve the agent selecting between semantically overlapping tools—calling issue_credit when process_refund was correct, and calling check_delivery_status when lookup_order already returns the needed data.

Which approach structurally eliminates the semantic overlap identified in the logs as the error source?

Options:

A.  

Split the tools across two sub-agents—a “financial resolution” agent with process_refund, issue_credit, and apply_promo_code, and a “delivery operations” agent with the remaining delivery tools—with a coordinator routing between them.

B.  

Consolidate semantically overlapping tools—merge issue_credit and process_refund into a single resolve_compensation tool with an action parameter, and fold check_delivery_status into lookup_order with an optional include_tracking flag.

C.  

Enable the tool search tool with defer_loading on the six new tools, keeping the original four always loaded, so the agent dynamically discovers specialized tools only when needed.

D.  

Add few-shot examples to the system prompt demonstrating correct selection for each ambiguous tool pair, such as showing when issue_credit applies versus when process_refund is appropriate.

Discussion 0