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Exam Code: GH-300

Exam Name GitHub Copilot

Certification Provider: Microsoft

Corresponding Certification: GitHub Copilot

Microsoft GH-300 Bundle $25.00
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GitHub Copilot (GH-300) Practice Tests

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Microsoft GH-300 Practice Test 60

Question 590

A GitHub admin must confirm that a terminated contractor no longer consumes an organizational Copilot seat. Which acceptance evidence should the team verify?

  1. Allowed users retain chat while the restricted mode is unavailable under policy.
  2. Automatic review runs in the eligible repository after policy approval.
  3. Seat inventory matches expected users without granting unrelated repository access.
  4. The contractor is absent from the seat inventory and repository access is independently revoked.

Explanation

Correct Answer

D:

This outcome directly checks the intended behavior: The contractor is absent from the seat inventory and repository access is independently revoked. The requested action was: Review and reconcile seat assignments through the approved administration experience.

Incorrect Answers

A:

“Allowed users retain chat while the restricted mode is unavailable under policy.” does not demonstrate the result required here: The contractor is absent from the seat inventory and repository access is independently revoked.

B:

“Automatic review runs in the eligible repository after policy approval.” does not demonstrate the result required here: The contractor is absent from the seat inventory and repository access is independently revoked.

C:

“Seat inventory matches expected users without granting unrelated repository access.” does not demonstrate the result required here: The contractor is absent from the seat inventory and repository access is independently revoked.

Question 591

A team completed the change for this case: Copilot suggests broad CORS '*' configuration for an authenticated private API. What observation best demonstrates the intended outcome?

  1. Invalid tokens fail and a correctly scoped token succeeds.
  2. Approved origins succeed and disallowed origins cannot read responses.
  3. Malformed files are rejected safely and memory remains within bounds.
  4. An injection fixture is treated as data and cannot change query structure.

Explanation

Correct Answer

B:

This outcome directly checks the intended behavior: Approved origins succeed and disallowed origins cannot read responses. The requested action was: Constrain allowed origins and verify preflight behavior.

Incorrect Answers

A:

“Invalid tokens fail and a correctly scoped token succeeds.” does not demonstrate the result required here: Approved origins succeed and disallowed origins cannot read responses.

C:

“Malformed files are rejected safely and memory remains within bounds.” does not demonstrate the result required here: Approved origins succeed and disallowed origins cannot read responses.

D:

“An injection fixture is treated as data and cannot change query structure.” does not demonstrate the result required here: Approved origins succeed and disallowed origins cannot read responses.

Question 592

A software team reports this Copilot-related situation: A source file contains licensed third-party code that must not be copied into new modules. Which action most directly satisfies the requirement?

  1. Decline it and review code reference and provenance before use.
  2. Check the current client support matrix and use separate tool permissions where coverage is absent.
  3. Review the documented indirect-context caveat and remove unauthorized metadata where necessary.
  4. Use provenance review and matching-code safeguards in addition to permissions.

Explanation

Correct Answer

D:

Generated output rights and source ownership may need separate legal analysis. Acceptance evidence: Reviewed generated code meets the organization's licensing decision.

Incorrect Answers

A:

Permissions to receive a suggestion do not settle ownership or suitability. That recommendation is relevant to a different task: A developer sees a suggestion that may contain a proprietary algorithm unrelated to their own task. In this case the main need is: A source file contains licensed third-party code that must not be copied into new modules.

B:

Documented exclusion enforcement varies by editor and mode. That recommendation is relevant to a different task: An IDE team assumes content exclusions apply identically to Chat Edit and Agent modes. In this case the main need is: A source file contains licensed third-party code that must not be copied into new modules.

C:

Excluded source content may still leak semantic hints through tool-provided metadata. That recommendation is relevant to a different task: A user asks whether an excluded file's type metadata can indirectly influence Copilot suggestions. In this case the main need is: A source file contains licensed third-party code that must not be copied into new modules.

Question 593

A project lead describes the following situation: A team wants to understand why a Copilot answer changed after adding a design document. What should the developer do first?

  1. Ask it to list assumptions and failure modes before implementing.
  2. Run both prompts on the same test inputs and compare format accuracy.
  3. Ask it to distinguish confirmed observations from hypotheses.
  4. Compare included context and requested objective between prompts.

Explanation

Correct Answer

D:

Different retrieved evidence changes likely completions. Acceptance evidence: The revised answer cites the new constraint rather than silently changing assumptions.

Incorrect Answers

A:

Explicit assumptions expose gaps that require user decisions. That recommendation is relevant to a different task: A model produces a plausible answer but does not state assumptions about concurrency. In this case the main need is: A team wants to understand why a Copilot answer changed after adding a design document.

B:

Prompt evaluation needs controlled inputs, not anecdotes. That recommendation is relevant to a different task: A candidate wants to compare a generic prompt with a few-shot prompt for the same formatting task. In this case the main need is: A team wants to understand why a Copilot answer changed after adding a design document.

C:

Reasoning quality improves when evidence and inference are separated. That recommendation is relevant to a different task: A model produces unsupported assumptions after seeing an ambiguous bug description. In this case the main need is: A team wants to understand why a Copilot answer changed after adding a design document.

Question 594

A user repeats a question and gets an answer that conflicts with earlier chat context. Which acceptance evidence should the team verify?

  1. Benchmark and full-operation timing show the actual trade-off.
  2. The final build and impacted integration tests pass.
  3. The final response states one supported assumption set.
  4. The test runner exits successfully for the target revision.

Explanation

Correct Answer

C:

This outcome directly checks the intended behavior: The final response states one supported assumption set. The requested action was: Compare the current retrieved evidence and restate assumptions explicitly.

Incorrect Answers

A:

“Benchmark and full-operation timing show the actual trade-off.” does not demonstrate the result required here: The final response states one supported assumption set.

B:

“The final build and impacted integration tests pass.” does not demonstrate the result required here: The final response states one supported assumption set.

D:

“The test runner exits successfully for the target revision.” does not demonstrate the result required here: The final response states one supported assumption set.

Question 595

A team completed the change for this case: A compliance team needs documented reasons for enabling Copilot on a sensitive codebase. What observation best demonstrates the intended outcome?

  1. A test PR touching the excluded fixture is not reviewed using that content.
  2. Eligible clients receive the intended rules across covered repositories.
  3. The MCP credentials themselves cannot read the protected path.
  4. The approval record names applicable exclusions, roles, and open risks.

Explanation

Correct Answer

D:

This outcome directly checks the intended behavior: The approval record names applicable exclusions, roles, and open risks. The requested action was: Record data classification, access scope, permitted use, and residual limitations.

Incorrect Answers

A:

“A test PR touching the excluded fixture is not reviewed using that content.” does not demonstrate the result required here: The approval record names applicable exclusions, roles, and open risks.

B:

“Eligible clients receive the intended rules across covered repositories.” does not demonstrate the result required here: The approval record names applicable exclusions, roles, and open risks.

C:

“The MCP credentials themselves cannot read the protected path.” does not demonstrate the result required here: The approval record names applicable exclusions, roles, and open risks.

Question 596

A project lead describes the following situation: An agent proposes changing 14 unrelated modules for a one-line defect. What should the developer do first?

  1. Review the effective permissions and apply least privilege.
  2. Review and minimize its diff before accepting it.
  3. Add boundary and negative tests before accepting the implementation.
  4. Review the diff and run integration tests for token issuer and audience.

Explanation

Correct Answer

B:

Narrow changes reduce regression surface and ease review. Acceptance evidence: The final diff touches only necessary files and the regression passes.

Incorrect Answers

A:

Infrastructure text can grant more access than intended. That recommendation is relevant to a different task: An engineer adds Copilot-generated infrastructure YAML with unexpected wildcard permissions. In this case the main need is: An agent proposes changing 14 unrelated modules for a one-line defect.

C:

Functional validation needs expected failure behavior as well as success. That recommendation is relevant to a different task: A generated input validator passes a happy-path test but its null behavior is unspecified. In this case the main need is: An agent proposes changing 14 unrelated modules for a one-line defect.

D:

Authentication patches can be subtly insecure despite compiling. That recommendation is relevant to a different task: Copilot produces a patch for a broken OAuth flow with no test evidence. In this case the main need is: An agent proposes changing 14 unrelated modules for a one-line defect.

Question 597

After addressing this GitHub Copilot situation, what result most directly demonstrates that the requirement is met? An agent has produced multiple commits in a cloud session and the user must inspect changes.

  1. The requested issue is read through the approved server and unrelated resources remain inaccessible.
  2. The exact commit's required checks pass before promotion.
  3. The visible diff matches the requested changes and required checks complete.
  4. The reviewed file diff matches staged paths and commit intent.

Explanation

Correct Answer

C:

This outcome directly checks the intended behavior: The visible diff matches the requested changes and required checks complete. The requested action was: Review the agent session diff and logs before accepting or merging.

Incorrect Answers

A:

“The requested issue is read through the approved server and unrelated resources remain inaccessible.” does not demonstrate the result required here: The visible diff matches the requested changes and required checks complete.

B:

“The exact commit's required checks pass before promotion.” does not demonstrate the result required here: The visible diff matches the requested changes and required checks complete.

D:

“The reviewed file diff matches staged paths and commit intent.” does not demonstrate the result required here: The visible diff matches the requested changes and required checks complete.

Question 598

After addressing this GitHub Copilot situation, what result most directly demonstrates that the requirement is met? An organization wants to evaluate whether the chosen public-code match policy is actually active.

  1. A test account cannot read the protected directory.
  2. The review record contains the matched source URL and reported license.
  3. The test yields the configured block or reference outcome.
  4. Adopted code has approved provenance after independent verification.

Explanation

Correct Answer

C:

This outcome directly checks the intended behavior: The test yields the configured block or reference outcome. The requested action was: Use an approved controlled known-match test in a supported IDE.

Incorrect Answers

A:

“A test account cannot read the protected directory.” does not demonstrate the result required here: The test yields the configured block or reference outcome.

B:

“The review record contains the matched source URL and reported license.” does not demonstrate the result required here: The test yields the configured block or reference outcome.

D:

“Adopted code has approved provenance after independent verification.” does not demonstrate the result required here: The test yields the configured block or reference outcome.

Question 599

A software team reports this Copilot-related situation: A platform team assumes file exclusions are guaranteed for third-party MCP integrations. Which action most directly satisfies the requirement?

  1. Review the MCP server's independent access controls and do not rely solely on Copilot exclusions.
  2. Use approved storage and permission boundaries instead of treating the exclusion as guaranteed.
  3. Apply supported repository exclusions and access controls for both projects.
  4. Use repository and filesystem protections rather than rely on unsupported symlink exclusion.

Explanation

Correct Answer

A:

GitHub exclusions are not guaranteed to bind external MCP servers. Acceptance evidence: The MCP credentials themselves cannot read the protected path.

Incorrect Answers

B:

Remote-filesystem repositories can be outside documented exclusion coverage. That recommendation is relevant to a different task: A repository is mounted on a remote filesystem and exclusion matching fails. In this case the main need is: A platform team assumes file exclusions are guaranteed for third-party MCP integrations.

C:

Permission scoping and context isolation limit accidental cross-project use. That recommendation is relevant to a different task: A project wants to prevent code from one private repository being reused as context for another project. In this case the main need is: A platform team assumes file exclusions are guaranteed for third-party MCP integrations.

D:

Current documentation lists symbolic links as a limitation. That recommendation is relevant to a different task: A team stores secrets behind symbolic links and expects their exclusion patterns to cover the links. In this case the main need is: A platform team assumes file exclusions are guaranteed for third-party MCP integrations.

Question 600

A team completed the change for this case: An engineer delegates a narrow read-only repository exploration to a CLI subagent. What observation best demonstrates the intended outcome?

  1. After login, the session can answer an allowed project question.
  2. The delegated result identifies the requested files without modifying them.
  3. The task produces diagnostic text without modifying the production environment.
  4. The active operation stops without completing unapproved changes.

Explanation

Correct Answer

B:

This outcome directly checks the intended behavior: The delegated result identifies the requested files without modifying them. The requested action was: Use a supported built-in exploration agent or documented delegation mechanism.

Incorrect Answers

A:

“After login, the session can answer an allowed project question.” does not demonstrate the result required here: The delegated result identifies the requested files without modifying them.

C:

“The task produces diagnostic text without modifying the production environment.” does not demonstrate the result required here: The delegated result identifies the requested files without modifying them.

D:

“The active operation stops without completing unapproved changes.” does not demonstrate the result required here: The delegated result identifies the requested files without modifying them.