Pass Microsoft GH-300 Exam in First Attempt Easily
Real Microsoft GH-300 Exam Questions, Accurate & Verified Answers As Experienced in the Actual Test!

Verified by experts
2 products

You save $34.99

GH-300 Premium Bundle

  • Premium File 137 Questions & Answers
  • Last Update: Oct 30, 2026
  • Training Course 120 Lectures
$74.99 $109.98

Purchase Individually

  • Premium File

    137 Questions & Answers
    Last Update: Oct 30, 2026

    $76.99
    $69.99
  • Training Course

    120 Lectures

    $43.99
    $39.99

GitHub Copilot GH-300 Practice Test 5

Question 40

PR summary together with Prompt file reuse now needs a coordinated review. The first finding is: A release manager needs a readable overview of the changes in a large PR. The second finding is: A team repeatedly asks for the same risk analysis and test outline. Select TWO actions, one that resolves each finding.

  1. Provide supported custom review instructions and independently enforce checks
  2. Assign accountable human reviewers and branch protections
  3. Use a Copilot PR summary as a draft and verify significant touched components
  4. Use GitHub Spark where available and review the generated app before deployment
  5. Store a reusable .github/prompts/*.prompt.md task prompt in a supported client

Explanation

Correct Answers

C:

This addresses the first finding. Summaries can miss important details or misdescribe behavior. The verification is: The final summary accurately cites modules in the diff. The complementary action addresses Prompt file reuse.

E:

This addresses the second finding. Prompt files capture task-specific instructions for intentional reuse. The verification is: A new review invokes the prompt file and yields the same required headings. The complementary action addresses PR summary.

Incorrect Answers

A:

This is relevant to a different case: The team wants Copilot PR reviews to flag database migration rollback policy. Its capability is: Review guidance can improve suggestions but does not replace required CI. Neither PR summary nor Prompt file reuse requires that result.

B:

This is relevant to a different case: A coding agent opens a PR for a feature but the team thinks that equals approval. Its capability is: Automated PR creation does not waive repository merge policy. Neither PR summary nor Prompt file reuse requires that result.

D:

This is relevant to a different case: A product manager needs a quick functional prototype from a clear feature description. Its capability is: Spark supports app prototyping but generated apps still need security checks. Neither PR summary nor Prompt file reuse requires that result.

Question 41

Ask for an explicit inventory of inspected files and supply relevant summaries. The prior failure was: An engineer assumes a chat answer scanned a monorepo containing thousands of files. What should the independent reviewer verify?

  1. The explanation identifies the relevant selection and states the limits
  2. The explanation lists inspected modules and labels unreviewed areas
  3. No untrusted repo script executes automatically
  4. The answer traces behavior through the replacement module

Explanation

Correct Answer

B:

This is the acceptance signal tied to the issue: The explanation lists inspected modules and labels unreviewed areas. It is causally related because model context windows cannot hold every file at once.

Incorrect Answers

A:

Copilot constructs task-focused prompts from available context rather than transmitting all repository content. That result is therefore evidence for a different capability, while this review requires the explanation lists inspected modules and labels unreviewed areas.

C:

Workspace and tool trust boundaries are separate from text generation. That result is therefore evidence for a different capability, while this review requires the explanation lists inspected modules and labels unreviewed areas.

D:

Automatic context selection may not cover every relevant source. That result is therefore evidence for a different capability, while this review requires the explanation lists inspected modules and labels unreviewed areas.

Question 42

Identify the effective policy in the actual client and account. The prior failure was: A personal editor preference conflicts with an enterprise Copilot setting. Which result is the most persuasive acceptance evidence?

  1. The observed behavior matches the enforced organization setting
  2. Review confirms no sensitive details are exposed through permitted metadata
  3. The agent ignores the hostile instruction and does not read forbidden settings
  4. The guidance does not claim the account can configure unsupported controls

Explanation

Correct Answer

A:

This observation is the required outcome: The observed behavior matches the enforced organization setting. It tests the original requirement because admin controls can supersede personal choices and vary by surface.

Incorrect Answers

B:

This observation would make sense for the independent case "IDE symbol leakage", whose acceptance criterion is Review confirms no sensitive details are exposed through permitted metadata. It is not proof of the current remediation.

C:

This observation would make sense for the independent case "Malicious prompt text", whose acceptance criterion is The agent ignores the hostile instruction and does not read forbidden settings. It is not proof of the current remediation.

D:

This observation would make sense for the independent case "Personal usage", whose acceptance criterion is The guidance does not claim the account can configure unsupported controls. It is not proof of the current remediation.

Question 43

A provisioning script must reconcile assigned Copilot seats against an HR roster. Which proposed response is appropriate without increasing unrelated risk?

  1. Review relevant organization policy and audit records
  2. Use supported authenticated REST APIs with least-privilege credentials
  3. Configure a least-privilege MCP integration and reject broad credentials
  4. Inspect the script and run a safe dry run before execution

Explanation

Correct Answer

B:

The key is the specific capability, not simply the fact that AI suggested it. Subscription APIs can automate assignment workflows within allowed scopes. In this case the proposed action is use supported authenticated REST APIs with least-privilege credentials; confirm it through the concrete expected result.

Incorrect Answers

A:

This is a reasonable intervention for the separate case "CLI org audit". Its value is central policy decisions should be traceable through administrative evidence, not resolving the current requirement. Here the controlling problem is a provisioning script must reconcile assigned Copilot seats against an HR roster, and the proposal must meet that constraint.

C:

This is a reasonable intervention for the separate case "MCP least privilege". Its value is external tools can amplify the consequences of prompt injection, not resolving the current requirement.

D:

This is a reasonable intervention for the separate case "CLI script review". Its value is generated scripts may contain destructive commands requiring human approval, not resolving the current requirement.

Question 44

An assistant follows decorative UI requests but ignores security validation buried in a long message. What is the defensible engineering decision?

  1. Specify minimal diff, preserved interfaces and tests as completion criteria
  2. Summarize logs and include a minimal representative trace
  3. Move security and acceptance criteria into an explicit prioritized section
  4. Add an explicit input partition matrix to the prompt

Explanation

Correct Answer

C:

This intervention is proportionate to the problem. Salient constraints guide the proposed solution. Its acceptance evidence is that the generated plan includes security checks before styling.

Incorrect Answers

A:

This measure fits a different failure: an agent makes unwanted stylistic changes while addressing a logic bug. In that situation constraints limit unnecessary scope expansion. It does not establish the requested outcome: the generated plan includes security checks before styling.

B:

This measure fits a different failure: an assistant becomes lost in verbose incident logs and ignores the critical stack frame. In that situation focused prompts improve signal within context limits. It does not establish the requested outcome: the generated plan includes security checks before styling.

D:

This measure fits a different failure: an AI-generated validator handles normal cases but fails whitespace and Unicode edge cases. In that situation a test matrix ensures boundary conditions are requested. It does not establish the requested outcome: the generated plan includes security checks before styling.

Question 45

Copilot Chat explains an old implementation even though a replacement module exists. Which step should the responsible reviewer require?

  1. Reference the current module and explicitly identify the active branch
  2. Summarize invariant requirements and reintroduce them in the current request
  3. Restate current requirements and use a fresh bounded context where necessary
  4. Treat indirect semantic leakage as a documented exclusion limitation

Explanation

Correct Answer

A:

Reference the current module and explicitly identify the active branch. This directly addresses the stated constraint: Automatic context selection may not cover every relevant source. The decision can be tested by checking that the answer traces behavior through the replacement module.

Incorrect Answers

B:

Context limits can remove earlier information from active prompt scope. That makes this relevant when a very long chat loses the earliest security constraint in later edits, whereas this scenario has a different controlling requirement and acceptance test.

C:

Earlier conversation can bias later suggestions toward obsolete assumptions. That makes this relevant when chat history contains a failed migration that has since been rolled back, whereas this scenario has a different controlling requirement and acceptance test.

D:

Indirect IDE metadata can reflect excluded material on some surfaces. That makes this relevant when a source file is excluded but a language server surfaces its function signature in hover text, whereas this scenario has a different controlling requirement and acceptance test.

Question 46

An AI suggestion recommends memoization before any profile exists. What choice best matches the actual acceptance criteria?

  1. Add unauthenticated and least-privileged access cases
  2. Request an end-to-end cost estimate and measure both dimensions
  3. Profile the workload and validate a measured optimization
  4. Capture baseline plan and run representative load before accepting changes

Explanation

Correct Answer

C:

The key is the specific capability, not simply the fact that AI suggested it. Optimization should target observed bottlenecks instead of speculation. In this case the proposed action is profile the workload and validate a measured optimization; confirm it through the concrete expected result.

Incorrect Answers

A:

Although technically useful, this addresses an AI-generated endpoint tests only a successful admin request. The stated constraint instead needs a change whose evidence is: A benchmark shows improvement without increased stale-result bugs.

B:

Although technically useful, this addresses a proposed cloud refactor saves compute but increases storage and egress significantly. The stated constraint instead needs a change whose evidence is: A benchmark shows improvement without increased stale-result bugs.

D:

Although technically useful, this addresses a code suggestion claims to speed a database join without checking query plans. The stated constraint instead needs a change whose evidence is: A benchmark shows improvement without increased stale-result bugs.

Question 47

A generated test suite covers only typical paths because it copied implementation assumptions. Select the remediation supported by this evidence.

  1. Rebenchmark with representative load and hardware
  2. Reference the current module and explicitly identify the active branch
  3. Add independent boundary and negative requirements-based tests
  4. Run a regression suite and recalibrate prompts for the actual model

Explanation

Correct Answer

C:

This intervention is proportionate to the problem. Tests derived from code can share the implementation's blind spots. Its acceptance evidence is that an external acceptance test catches a missing error branch.

Incorrect Answers

A:

This is a reasonable intervention for the separate case "Synthetic benchmark limits". Its value is microbenchmarks are not general production performance guarantees, not resolving the current requirement.

B:

This is a reasonable intervention for the separate case "Open file relevance". Its value is automatic context selection may not cover every relevant source, not resolving the current requirement.

D:

This is a reasonable intervention for the separate case "Model version change". Its value is models can differ in capability and output style, not resolving the current requirement.

Question 48

Inspect and verify the script source before running with least privilege. The prior failure was: Copilot suggests piping an unverified script from the internet directly into a privileged shell. Which observable outcome establishes that the fix works?

  1. An injected quote changes neither query structure nor authorization behavior
  2. The dry run lists only allowed disposable files and rejects the root path
  3. Only audited actions run under an account with limited permissions
  4. A second account receives a denial when requesting the first account's record

Explanation

Correct Answer

C:

This observation is the required outcome: Only audited actions run under an account with limited permissions. It tests the original requirement because generated commands can perform actions outside the intended scope.

Incorrect Answers

A:

This result would validate a different action: Use parameterized queries and test malicious input. It applies when copilot suggests interpolating a search term into a SQL string on an admin reporting page, not to the failure being reviewed here.

B:

This result would validate a different action: Restrict the target path, dry-run, and obtain review before executing destructive commands. It applies when copilot proposes a cleanup script that recursively removes a shared project directory, not to the failure being reviewed here.

D:

This result would validate a different action: Add resource-level authorization and negative cross-user tests. It applies when an AI-generated endpoint checks login but never checks whether the user owns the requested record, not to the failure being reviewed here.

Question 49

The team needs an OpenAPI skeleton for a newly implemented REST service. Which course of action is best justified?

  1. Use Copilot to draft a specification from handlers and tests, then validate the schema
  2. Generate a draft documentation update from the actual route handlers
  3. Generate obviously synthetic fixtures covering valid formats and rejects
  4. Ask Copilot to suggest table-driven tests from a separate requirement

Explanation

Correct Answer

A:

The key is the specific capability, not simply the fact that AI suggested it. Generated API docs must match runtime behavior and authentication rules. In this case the proposed action is use Copilot to draft a specification from handlers and tests, then validate the schema; confirm it through the concrete expected result.

Incorrect Answers

B:

Documentation should follow inspected behavior, not guessed naming. That makes this relevant when a README lists an outdated API route after backend refactoring, whereas this scenario has a different controlling requirement and acceptance test.

C:

Synthetic data can preserve testing utility without personal data exposure. That makes this relevant when a team needs synthetic address data to test a parser without copying customer records, whereas this scenario has a different controlling requirement and acceptance test.

D:

Test generation helps coverage when expectations are independently specified. That makes this relevant when an existing function has no tests for negative balance handling, whereas this scenario has a different controlling requirement and acceptance test.

Question 50

XSS output together with Unsafe shell suggestion now needs a coordinated review. The first finding is: A generated UI inserts untrusted comments into innerHTML without escaping. The second finding is: Copilot suggests piping an unverified script from the internet directly into a privileged shell. Select TWO actions, one that resolves each finding.

  1. Use safe DOM text APIs or context-aware encoding and add an injection test
  2. Use parameterized queries and test malicious input
  3. Inspect and verify the script source before running with least privilege
  4. Run tests and collect actual command output before accepting the claim
  5. Ask for adversarial tests derived from requirements and review coverage

Explanation

Correct Answers

A:

This addresses the first finding. String insertion into HTML can interpret attacker-controlled markup. The verification is: A script payload displays as inert text and never executes. The complementary action addresses Unsafe shell suggestion.

C:

This addresses the second finding. Generated commands can perform actions outside the intended scope. The verification is: Only audited actions run under an account with limited permissions. The complementary action addresses XSS output.

Incorrect Answers

B:

This is relevant to a different case: Copilot suggests interpolating a search term into a SQL string on an admin reporting page. Its capability is: Parameter binding separates input data from SQL syntax. Neither XSS output nor Unsafe shell suggestion requires that result.

D:

This is relevant to a different case: An agent reports that all tests pass but its transcript contains no test execution. Its capability is: Textual statements about testing are not evidence of execution. Neither XSS output nor Unsafe shell suggestion requires that result.

E:

This is relevant to a different case: A code change and its generated test both omit the same failure branch. Its capability is: Tests generated from flawed code can reproduce the same incorrect assumption. Neither XSS output nor Unsafe shell suggestion requires that result.

GitHub Copilot (GH-300) Practice Tests

Purchase Individually

  • Premium File

    137 Questions & Answers
    Last Update: Oct 30, 2026

    $76.99
    $69.99
  • Training Course

    120 Lectures

    $43.99
    $39.99

SPECIAL OFFER: GET 10% OFF
This is ONE TIME OFFER

You save
10%

Enter Your Email Address to Receive Your 10% Off Discount Code

SPECIAL OFFER: GET 10% OFF

You save
10%

Use Discount Code:

A confirmation link was sent to your e-mail.

Please check your mailbox for a message from support@examlabs.com and follow the directions.

Download Free Demo of VCE Exam Simulator

Experience Avanset VCE Exam Simulator for yourself.

Simply submit your email address below to get started with our interactive software demo of your free trial.

  • Realistic exam simulation and exam editor with preview functions
  • Whole exam in a single file with several different question types
  • Customizable exam-taking mode & detailed score reports