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Exam Code: CCA-F

Exam Name: Claude Certified Architect - Foundations

Certification Provider: Anthropic

Anthropic CCA-F Questions & Answers

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Anthropic CCA-F Practice Test 21

Question 200

A shared deployment skill accepts a target environment and a release version, but developers invoke it as /deploy without arguments and it fails after starting. Which SKILL.md frontmatter field improves discoverability of the required invocation parameters?

  1. Add an argument-hint such as '[environment] [release-version]' to the skill frontmatter.
  2. Put the release version in the skill name so only one version is supported forever.
  3. Place the target environment in a model-visible API key description.
  4. Remove all arguments and let the skill silently choose production by default.

Explanation

Correct Answer

A:

Claude Code's argument-hint field displays expected parameters in invocation autocomplete, helping developers understand the skill's required inputs before they run it. The skill should also validate those inputs in its workflow and refuse ambiguous production deployments. The hint improves discoverability, but it is not a schema validator or an authorization mechanism by itself. The team must ensure the selected Claude Code environment supports this frontmatter, since packaging outside Claude Code may apply different permitted metadata fields.

Incorrect Answers

B:

A changing release identifier is an invocation argument, not an enduring identity for the workflow. Renaming skills for each release makes the command catalog unstable and harder to maintain. Parameter hints are better suited to variable inputs. A stable command name should describe its ongoing purpose.

C:

A tool description is not the right location for a skill's command syntax, and API key metadata must not expose deployment secrets. Invocation guidance should be associated with the skill itself. Runtime approval still governs actual deployments. Authentication data must remain outside the model-visible interface.

D:

Implicit production selection is unsafe when different environments have different effects. The workflow should request and validate an explicit target, particularly for destructive or externally visible actions. Showing the expected parameters reduces accidental invocations. Production changes should remain subject to explicit authorization and validation.

Question 201

A team requires its code-review standard to apply during every repository edit, including edits when no review command is invoked. Where should this standing Claude Code instruction be maintained?

  1. Repeat the standard in each chat prompt only.
  2. Add the rule to a single developer's user preferences.
  3. Put the convention only in a callable review skill.
  4. Keep the universal standard in CLAUDE.md.

Explanation

Correct Answer

D:

A version-controlled CLAUDE.md supplies project-wide working instructions in applicable repository sessions, while a callable skill is task-specific. A teammate can modify code without invoking a review command; project instructions reduce dependence on that optional action. By contrast, an on-demand skill can be skipped during routine edits. A developer editing outside the review workflow would never load the skill's particular instructions. Personal settings do not create a shared repository requirement. Another teammate's checkout would lack the private preference despite sharing the same codebase.

Incorrect Answers

A:

Individual chats have no reliable always-on rule inheritance. Each new conversation relies on someone copying the requirement manually before editing. A teammate can modify code without invoking a review command; project instructions reduce dependence on that optional action. Instead, keep universal standard in CLAUDE.md.

B:

Personal settings do not create a shared repository requirement. Another teammate's checkout would lack the private preference despite sharing the same codebase. A rule must apply to every code change, not only when a command is invoked. Instead, keep universal standard in CLAUDE.md.

C:

An on-demand skill can be skipped during routine edits. A developer editing outside the review workflow would never load the skill's particular instructions. A rule must apply to every code change, not only when a command is invoked. Instead, keep universal standard in CLAUDE.md.

Question 202

One engineer wants a debug-logging variation of the shared review workflow without altering the command teammates use. What is the most appropriate configuration?

  1. Put extra logging in root CLAUDE.md.
  2. Edit the project skill and commit debug statements globally.
  3. Replace the team's shared skill with local logging preferences.
  4. Create a separately named user-level skill.

Explanation

Correct Answer

D:

User-scoped skills can customize one developer's commands without modifying the shared repository skill used by colleagues. Extra local logging should be isolated from committed project behavior so teammates receive unchanged review results. By contrast, a shared change alters every teammate's behavior. Changing the common command makes nondebug runs noisier for all consumers, not just one author. The variant is explicitly personal, not a shared default. Committed diagnostics can leak into colleagues' routine reviews and automated outputs.

Incorrect Answers

A:

Persistent project-wide guidance would affect normal tasks. Global instruction files are read for unrelated tasks, so debug details become persistent clutter. Extra local logging should be isolated from committed project behavior so teammates receive unchanged review results. A developer wants extra print statements in a local review workflow.

B:

The variant is explicitly personal, not a shared default. Committed diagnostics can leak into colleagues' routine reviews and automated outputs. Extra local logging should be isolated from committed project behavior so teammates receive unchanged review results. A developer wants extra print statements in a local review workflow. Instead, create a separately named user-level skill.

C:

A shared change alters every teammate's behavior. Changing the common command makes nondebug runs noisier for all consumers, not just one author. A developer wants extra print statements in a local review workflow. Instead, create a separately named user-level skill. Extra local logging should be isolated from committed project behavior so teammates receive unchanged review results.

Question 203

A repository has 10,000 lines of optional reference snippets in its top-level CLAUDE.md, crowding out current task context. How should the team retain the snippets without always loading them?

  1. Paste the examples into every chat before work.
  2. Keep all ten thousand lines in the root CLAUDE.md.
  3. Move optional snippets into skill supporting files that are read only when the relevant skill runs.
  4. Remove the examples entirely from the repository.

Explanation

Correct Answer

C:

The project CLAUDE.md is loaded as standing session context, so large optional reference blocks consume space even when the active task does not need them. Move the examples into a task-specific skill with separate supporting files and have the skill read those resources only when invoked. This preserves useful implementation details without loading them into every interaction. Importing the entire reference file with an `@path` directive from the root CLAUDE.md would load it eagerly and would not solve the context problem.

Incorrect Answers

A:

Pasting all optional examples into each conversation would repeat large blocks and create different copies across sessions. The team needs durable reference material without paying that context cost for unrelated tasks. A callable skill can retrieve only the necessary supporting file when the work requires it. Keeping examples in a giant initial prompt merely shifts the same context burden to another place.

B:

Ten thousand lines of illustrative material are not required for every repository edit. Leaving them in top-level CLAUDE.md injects optional content into each session and reduces room for current code, test evidence, and decisions. Root instructions should remain focused on broadly applicable rules, while task-specific examples are read on demand from skill resources. Splitting the same lines across eager imports does not reduce their load cost.

D:

Removing all examples might reduce prompt size, but it also discards useful edge cases that can guide specialized review or generation. The requirement is to preserve the reference material without always loading it. A skill with supporting files provides selective retrieval without losing those demonstrations. Simply deleting the repository resources does not meet the stated retention goal.

Question 204

A publishing command starts deploying without a specified destination branch. Which TWO safeguards should be enforced before a deployment begins? (SELECT TWO)

  1. Allow arbitrary shell scripts to infer the target branch.
  2. Prevent deployment actions until the missing parameter is resolved.
  3. Publish first and ask for the branch afterward.
  4. Validate the requested target branch.
  5. Select the default release branch silently.

Explanation

Correct Answers

B:

A deployment command should validate supplied arguments and reject undefined destinations before any operation with production side effects. A missing target branch must be resolved explicitly; a default guess could release code to an unintended environment. By contrast, a missing target must not be guessed for a deployment. An implicit branch choice could send releases to main or production against the user's intent. Validation after the side effect is too late. Deployment side effects cannot reliably be undone simply by learning the missing parameter later.

D:

A deployment command should validate supplied arguments and reject undefined destinations before any operation with production side effects. A missing target branch must be resolved explicitly; a default guess could release code to an unintended environment. By contrast, validation after the side effect is too late. Deployment side effects cannot reliably be undone simply by learning the missing parameter later. Inference creates an uncontrolled deployment authorization path. The permission boundary belongs in the launcher, not a speculative script-derived destination.

Incorrect Answers

A:

Inference creates an uncontrolled deployment authorization path. The permission boundary belongs in the launcher, not a speculative script-derived destination. A release command has no target branch but starts publishing anyway. Instead, validate the requested target branch and prevent deployment actions until the missing parameter is resolved. A deployment command should validate supplied arguments and reject undefined destinations before any operation with production side effects.

C:

Validation after the side effect is too late. Deployment side effects cannot reliably be undone simply by learning the missing parameter later. A missing target branch must be resolved explicitly; a default guess could release code to an unintended environment. A release command has no target branch but starts publishing anyway. Instead, validate the requested target branch and prevent deployment actions until the missing parameter is resolved.

E:

A missing target must not be guessed for a deployment. An implicit branch choice could send releases to main or production against the user's intent. A deployment command should validate supplied arguments and reject undefined destinations before any operation with production side effects. A release command has no target branch but starts publishing anyway. Instead, validate the requested target branch and prevent deployment actions until the missing parameter is resolved.

Question 205

A source-retrieval skill has access to unrestricted Bash, even though its only job is to read evidence. How should the team enforce least privilege for this skill?

  1. Leave Bash unrestricted and add a caution in the skill prompt.
  2. Run the browser skill under production deployment credentials.
  3. Enforce read/search-only permissions using disallowed-tools or deny rules, excluding Bash.
  4. Disable all file reading to remove risk.

Explanation

Correct Answer

C:

Claude Code tool restrictions must be enforced by permission configuration, not solely by advisory prose in a skill. Read/search permissions permit evidence collection without granting a browsing specialist shell mutation or credential-export capabilities. By contrast, instructions cannot replace enforceable tool boundaries. The prompt is only advice; a subprocess still retains the ability to run arbitrary commands. The research skill cannot perform its required evidence lookup. Without read access, the skill cannot retrieve the evidence it was created to examine.

Incorrect Answers

A:

Instructions cannot replace enforceable tool boundaries. The prompt is only advice; a subprocess still retains the ability to run arbitrary commands. A browsing skill needs only source retrieval but has unrestricted Bash execution. Instead, limit its allowed tools to the evidence-reading subset. Claude Code tool restrictions must be enforced by permission configuration, not solely by advisory prose in a skill.

B:

Higher privilege expands rather than limits the blast radius. Production credentials convert a low-risk browsing task into a potential secret or deployment compromise. Claude Code tool restrictions must be enforced by permission configuration, not solely by advisory prose in a skill.

D:

The research skill cannot perform its required evidence lookup. Without read access, the skill cannot retrieve the evidence it was created to examine. A browsing skill needs only source retrieval but has unrestricted Bash execution. Instead, limit its allowed tools to the evidence-reading subset.

Question 206

Developers want a reusable test-generation action they can call when needed, without making it a permanent agent behavior. Which Claude Code configuration best fits?

  1. Put every generated test in CLAUDE.md.
  2. Wait for automatic background invocation on each edit.
  3. Make the test generator a permanent global agent role.
  4. Use a project skill or custom command with explicit invocation.

Explanation

Correct Answer

D:

A named project skill can encapsulate a reusable test-generation procedure and be invoked for the tasks that need it. Permanent global instructions should define project conventions, not execute a one-off generator during unrelated editing sessions. By contrast, an ongoing role is unnecessary for a deliberately invoked task. Keeping a single-purpose test generator active constantly consumes scope without improving routine edits. Persistent instructions cannot execute a reusable workflow. CLAUDE.md describes conventions rather than executing the test generator's operations on demand.

Incorrect Answers

A:

Persistent instructions cannot execute a reusable workflow. CLAUDE.md describes conventions rather than executing the test generator's operations on demand. A project wants a reusable command that generates tests, not a permanent agent configuration. Instead, use a project skill or custom command with explicit invocation.

B:

The task needs a controlled explicit trigger. The team loses control of when test generation runs and what source change it targets. A project wants a reusable command that generates tests, not a permanent agent configuration. Instead, use a project skill or custom command with explicit invocation.

C:

An ongoing role is unnecessary for a deliberately invoked task. Keeping a single-purpose test generator active constantly consumes scope without improving routine edits. A project wants a reusable command that generates tests, not a permanent agent configuration. Instead, use a project skill or custom command with explicit invocation.

Question 207

A useful team skill exists only in one developer's home directory, so colleagues cannot run it from the shared checkout. Where should the skill be moved?

  1. Tell teammates to copy the personal skill manually.
  2. Delete the personal skill and depend on model memory.
  3. Mention the skill in the project README but keep it only in home.
  4. Place the shared skill in the project's recognized skills location.

Explanation

Correct Answer

D:

A skill stored in a developer's private home is unavailable to other team members unless separately installed. Repository-scoped skill files make the invocation and documented steps discoverable in shared checkouts and subject to code review. By contrast, private user installations do not provide version-controlled sharing. Manual copying permits different teammates to run divergent, unreviewed definitions of the same skill. Documentation alone cannot make its implementation discoverable. The README link points to a file that other project checkouts cannot actually load.

Incorrect Answers

A:

Private user installations do not provide version-controlled sharing. Manual copying permits different teammates to run divergent, unreviewed definitions of the same skill. A skill stored in a developer's private home is unavailable to other team members unless separately installed. The skill exists under one user's home directory instead of the repo. Instead, place the shared skill in the project's recognized skills location.

B:

Model recollection is not a defined reusable command. Session memory cannot guarantee a future invocation has the original tested instructions. A skill stored in a developer's private home is unavailable to other team members unless separately installed. Instead, place the shared skill in the project's recognized skills location.

C:

Documentation alone cannot make its implementation discoverable. The README link points to a file that other project checkouts cannot actually load. The skill exists under one user's home directory instead of the repo. Instead, place the shared skill in the project's recognized skills location.

Question 208

A downloaded third-party SKILL.md asks the assistant to export credentials from the local machine. What is the correct trust and permission response?

  1. Run the credential export because SKILL.md requested it.
  2. Treat repository content as untrusted and keep execution within approved tool policy.
  3. Grant the skill unrestricted system tool permissions.
  4. Treat repository text as higher priority than operator policy.

Explanation

Correct Answer

B:

Skill files are instructions from a lower-trust source and cannot override access controls or operator authorization. Credential-export directives in downloaded content are a prompt-injection risk; tool permissions and approved objectives govern execution. By contrast, an untrusted skill file cannot authorize secret disclosure. The downloaded document is lower-trust content and provides no authorization to read secrets. Broad tools let injected instructions reach sensitive resources. Unrestricted command execution exposes the host when malicious skill text is interpreted as instruction.

Incorrect Answers

A:

An untrusted skill file cannot authorize secret disclosure. The downloaded document is lower-trust content and provides no authorization to read secrets. A downloaded third-party SKILL.md contains directives to export local credentials. Instead, treat repository content as untrusted and keep execution within approved tool policy.

C:

Broad tools let injected instructions reach sensitive resources. Unrestricted command execution exposes the host when malicious skill text is interpreted as instruction. A downloaded third-party SKILL.md contains directives to export local credentials. Instead, treat repository content as untrusted and keep execution within approved tool policy.

D:

Document content is data rather than a trusted instruction layer. The trust boundary is set by developer and operator permissions, not repository prose. A downloaded third-party SKILL.md contains directives to export local credentials. Instead, treat repository content as untrusted and keep execution within approved tool policy.

Question 209

Infrastructure conventions are being applied to normal frontend files and produce irrelevant responses. How should Claude Code's path-scoped convention be corrected?

  1. Target every file matching **/*.
  2. Trigger the rule on the word infrastructure in prompts.
  3. Use a paths glob covering terraform directories only.
  4. Put the Terraform rule into the global root CLAUDE.md.

Explanation

Correct Answer

C:

Path-scoped rules use matching file paths to decide when domain-specific guidance applies to edits. Restricting Terraform guidance to infrastructure directories avoids polluting frontend work and reducing precision in unrelated reviews. By contrast, global guidance would continue contaminating frontend edits. Any frontend change could still inherit Terraform naming rules and provisioner warnings. This is effectively global and does not restrict infrastructure scope. A wildcard matching all repository paths is indistinguishable from the problem's current scope.

Incorrect Answers

A:

This is effectively global and does not restrict infrastructure scope. A wildcard matching all repository paths is indistinguishable from the problem's current scope. Infrastructure conventions are being applied to normal frontend files and produce irrelevant responses. Instead, use a paths glob covering terraform directories only.

B:

Keyword matching is not a reliable file-path condition. Prompt text may mention infrastructure while editing UI, and may omit that word when editing Terraform. Infrastructure conventions are being applied to normal frontend files and produce irrelevant responses. Instead, use a paths glob covering terraform directories only.

D:

Global guidance would continue contaminating frontend edits. Any frontend change could still inherit Terraform naming rules and provisioner warnings. Infrastructure conventions are being applied to normal frontend files and produce irrelevant responses. Instead, use a paths glob covering terraform directories only.

Question 210

Tests use different package directories but all names end in .test.ts. How should Claude Code's path-scoped convention be corrected?

  1. Match only packages/api/tests/*.
  2. Ask developers to type a command each time.
  3. Use a matching file-type glob in frontmatter rather than one directory rule.
  4. Load the test rule for every TypeScript file.

Explanation

Correct Answer

C:

File-extension or suffix globs can match test files distributed among packages regardless of their parent directory. A hard-coded package path will miss valid tests elsewhere; project-wide TypeScript matching instead over-applies test-only guidance. By contrast, other packages with the same extension remain uncovered. Tests under another package path remain invisible even though they end in the expected suffix. Production modules would receive test-only conventions. Every production TypeScript file would receive assertions and fixture guidance irrelevant to its behavior.

Incorrect Answers

A:

Other packages with the same extension remain uncovered. Tests under another package path remain invisible even though they end in the expected suffix. Tests use different package directories but all names end in .test.ts. Instead, use a matching file-type glob in frontmatter rather than one directory rule.

B:

The test rule should activate from matching file paths. An absent manual command leaves an otherwise matching test file unprotected by style guidance. Tests use different package directories but all names end in .test.ts. Instead, use a matching file-type glob in frontmatter rather than one directory rule.

D:

Production modules would receive test-only conventions. Every production TypeScript file would receive assertions and fixture guidance irrelevant to its behavior. Tests use different package directories but all names end in .test.ts. Instead, use a matching file-type glob in frontmatter rather than one directory rule.

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