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Exam Code: PL-400

Exam Name Microsoft Power Platform Developer

Certification Provider: Microsoft

Corresponding Certification: Microsoft Certified: Power Platform Developer Associate

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Microsoft PL-400 Practice Test 28

Question 270

At the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. Which technical explanation best accounts for the observed problem?

  1. Ordinary web build files do not establish the Power Apps code app app configuration
  2. The app source code references a connector that was never configured for the app
  3. App sharing does not automatically grant every backing data-source privilege
  4. Authenticated Dataverse connections need host-supported wiring and access checks

Explanation

Correct Answer

D:

The underlying mechanism is that authenticated Dataverse connections need host-supported wiring and access checks. This is why the specific corrective choice is to add the Dataverse data source and use the supported code app client-library generated services. Testing whether authorized app users can read the designated table while unauthorized reads fail would validate that assessment. In the Grayhaven retail logistics hub, assess this against the documented code app dataverse datasource scenario.

Incorrect Answers

A:

“Ordinary web build files do not establish the Power Apps code app app configuration” is not the controlling explanation for at the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. The matching answer is “Authenticated Dataverse connections need host-supported wiring and access checks”.

B:

“The app source code references a connector that was never configured for the app” is not the controlling explanation for at the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. The matching answer is “Authenticated Dataverse connections need host-supported wiring and access checks”.

C:

This explanation corresponds to code app publishing and sharing rather than the symptoms in the case. The controlling cause here is that authenticated Dataverse connections need host-supported wiring and access checks; the unrelated mechanism does not account for the observed behavior. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

Question 271

At the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. What outcome would most convincingly confirm that the issue is resolved?

  1. A valid connection is resolved and the expected external data appears
  2. Authorized app users can read the designated table while unauthorized reads fail
  3. A failing browser request is identified alongside a corresponding trace
  4. A single authorized action returns the documented result without partial client writes

Explanation

Correct Answer

B:

The implementation should be accepted when authorized app users can read the designated table while unauthorized reads fail. That result specifically exercises the remediation to add the Dataverse data source and use the supported code app client-library generated services. In the Grayhaven retail logistics hub, assess this against the documented code app dataverse datasource scenario.

Incorrect Answers

A:

The test is directed at code app connector binding, not the reported failure mechanism. Successful correction here requires demonstrating that authorized app users can read the designated table while unauthorized reads fail. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

C:

Although useful when testing browser debug strategy, this observation is not the direct acceptance test for the stated change. Look instead for authorized app users can read the designated table while unauthorized reads fail. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

D:

The test is directed at code app dataverse action, not the reported failure mechanism. Successful correction here requires demonstrating that authorized app users can read the designated table while unauthorized reads fail. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

Question 272

At the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. Which ongoing engineering control would most directly reduce recurrence?

  1. Check environment variable values and data-source references before deployment
  2. Test generated services and table permissions in each environment
  3. Review supported Client API methods before browser modernization
  4. Review supported CLI changes before updating the build template

Explanation

Correct Answer

B:

The most relevant long-term safeguard is to test generated services and table permissions in each environment. It preserves the remediation to add the Dataverse data source and use the supported code app client-library generated services as operating conditions change. In the Grayhaven retail logistics hub, assess this against the documented code app dataverse datasource scenario.

Incorrect Answers

A:

That safeguard is appropriate for maintaining code app environment-variable reference. It would not primarily prevent the reported failure, for which the relevant control is to test generated services and table permissions in each environment. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

C:

“Review supported Client API methods before browser modernization” checks a different ongoing risk rather than the reported failure: at the Grayhaven retail logistics hub after a wider deployment, a TypeScript code app attempts to use a plain unauthenticated fetch call for secured Dataverse rows. The operations team needs a supportable remediation with evidence for the handover. The directly matched preventive control is “Test generated services and table permissions in each environment”.

D:

That safeguard is appropriate for maintaining code app initialization. It would not primarily prevent the reported failure, for which the relevant control is to test generated services and table permissions in each environment. For case R082-PL400-CASE-0068, the decisive context is the 2 deployment setting at the Grayhaven retail logistics hub.

Question 273

At the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. Which implementation or corrective action most directly addresses the reported condition?

  1. Initialize and configure a Power Apps code app with the supported pa app CLI workflow
  2. Register the supported OnChange handler deliberately and avoid duplicate registrations
  3. Add the supported connector data source with an approved Power Apps connection
  4. Use the supported Copilot Studio integration path and least-privilege authenticated user context

Explanation

Correct Answer

C:

The safest first response is add the supported connector data source with an approved Power Apps connection. It addresses the stated mechanism, namely that the app source code references a connector that was never configured for the app. The team should accept the fix only when a valid connection is resolved and the expected external data appears. In the Grayhaven banking operations, assess this against the documented code app connector binding scenario.

Incorrect Answers

A:

“Initialize and configure a Power Apps code app with the supported pa app CLI workflow” would address a different implementation objective; the stated problem is at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The actual control boundary is the app source code references a connector that was never configured for the app. The directly responsive action is “Add the supported connector data source with an approved Power Apps connection”.

B:

The alternative concerns onchange handler registration, not this case’s documented failure. The correct response targets the app source code references a connector that was never configured for the app by using add the supported connector data source with an approved Power Apps connection. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

D:

“Use the supported Copilot Studio integration path and least-privilege authenticated user context” would address a different implementation objective; the stated problem is at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The actual control boundary is the app source code references a connector that was never configured for the app. The directly responsive action is “Add the supported connector data source with an approved Power Apps connection”.

Question 274

At the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. Which technical explanation best accounts for the observed problem?

  1. The app source code references a connector that was never configured for the app
  2. App sharing does not automatically grant every backing data-source privilege
  3. Long-running approval orchestration is not a responsive browser operation
  4. Authenticated Dataverse connections need host-supported wiring and access checks

Explanation

Correct Answer

A:

This is the cause indicated by the reported symptoms: the app source code references a connector that was never configured for the app. The corrective design is to add the supported connector data source with an approved Power Apps connection, not to change unrelated components. In the Grayhaven banking operations, assess this against the documented code app connector binding scenario.

Incorrect Answers

B:

This explanation corresponds to code app publishing and sharing rather than the symptoms in the case. The controlling cause here is that the app source code references a connector that was never configured for the app; the unrelated mechanism does not account for the observed behavior. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

C:

“Long-running approval orchestration is not a responsive browser operation” is not the controlling explanation for at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The cited causal relationship is the app source code references a connector that was never configured for the app. The matching answer is “The app source code references a connector that was never configured for the app”.

D:

“Authenticated Dataverse connections need host-supported wiring and access checks” is not the controlling explanation for at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The cited causal relationship is the app source code references a connector that was never configured for the app. The matching answer is “The app source code references a connector that was never configured for the app”.

Question 275

At the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. What outcome would most convincingly confirm that the issue is resolved?

  1. A valid connection is resolved and the expected external data appears
  2. Switching the selected record updates the displayed value
  3. After import, the same app resolves the target environment list
  4. Authorized users obtain agent responses without cross-user data exposure

Explanation

Correct Answer

A:

The implementation should be accepted when a valid connection is resolved and the expected external data appears. That result specifically exercises the remediation to add the supported connector data source with an approved Power Apps connection. In the Grayhaven banking operations, assess this against the documented code app connector binding scenario.

Incorrect Answers

B:

Although useful when testing pcf update lifecycle, this observation is not the direct acceptance test for the stated change. Look instead for a valid connection is resolved and the expected external data appears. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

C:

The test is directed at code app environment-variable reference, not the reported failure mechanism. Successful correction here requires demonstrating that a valid connection is resolved and the expected external data appears. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

D:

Evidence that “Authorized users obtain agent responses without cross-user data exposure” occurred would not by itself establish resolution of the reported problem: at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The specific reason is the app source code references a connector that was never configured for the app. The applicable verification is “A valid connection is resolved and the expected external data appears”.

Question 276

At the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. Which ongoing engineering control would most directly reduce recurrence?

  1. Check environment variable values and data-source references before deployment
  2. Audit allowed origins and remove unused hosts periodically
  3. Include datasource binding validation in code app deployments
  4. Contract-test action permissions and responses in code app releases

Explanation

Correct Answer

C:

Make future changes safer by ensuring teams include datasource binding validation in code app deployments. The control belongs with the original correction to add the supported connector data source with an approved Power Apps connection. In the Grayhaven banking operations, assess this against the documented code app connector binding scenario.

Incorrect Answers

A:

This monitoring or review practice targets code app environment-variable reference; the better ongoing protection for this case is to include datasource binding validation in code app deployments. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

B:

“Audit allowed origins and remove unused hosts periodically” checks a different ongoing risk rather than the reported failure: at the Grayhaven banking operations during a controlled pilot, a code app displays a blank page because its external connector was not added to its data sources. The project team must verify a scoped fix before rollout. The relevant mechanism is the app source code references a connector that was never configured for the app. The directly matched preventive control is “Include datasource binding validation in code app deployments”.

D:

This monitoring or review practice targets code app dataverse action; the better ongoing protection for this case is to include datasource binding validation in code app deployments. For case R082-PL400-CASE-0069, the decisive context is the 1 deployment setting at the Grayhaven banking operations.

Question 277

At the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. Which implementation or corrective action most directly addresses the reported condition?

  1. Add the supported connector data source with an approved Power Apps connection
  2. Instrument supported code app events and exceptions with Application Insights correlation
  3. Use supported @envvar: schema references in the code app data-source configuration
  4. Initialize and configure a Power Apps code app with the supported pa app CLI workflow

Explanation

Correct Answer

A:

This directly changes the failing design: add the supported connector data source with an approved Power Apps connection. The case identifies that the app source code references a connector that was never configured for the app; success can be demonstrated when a valid connection is resolved and the expected external data appears. In the Grayhaven housing nonprofit, assess this against the documented code app connector binding scenario.

Incorrect Answers

B:

The proposed action would instead address application insights code app. The scenario here is different: the app source code references a connector that was never configured for the app. Choosing that remedy would leave the stated defect untreated; add the supported connector data source with an approved Power Apps connection addresses it directly. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

C:

“Use supported @envvar: schema references in the code app data-source configuration” would address a different implementation objective; the stated problem is at the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. The actual control boundary is the app source code references a connector that was never configured for the app. The directly responsive action is “Add the supported connector data source with an approved Power Apps connection”.

D:

The alternative concerns code app initialization, not this case’s documented failure. The correct response targets the app source code references a connector that was never configured for the app by using add the supported connector data source with an approved Power Apps connection. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

Question 278

At the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. Which technical explanation best accounts for the observed problem?

  1. The app source code references a connector that was never configured for the app
  2. Agent calls must honor configured authentication and connector permissions
  3. Duplicated client updates bypass an established server-side operation contract
  4. Local development output alone is not a deployable solution asset

Explanation

Correct Answer

A:

The observed behavior follows from the fact that the app source code references a connector that was never configured for the app. A focused repair is to add the supported connector data source with an approved Power Apps connection, with a valid connection is resolved and the expected external data appears as the proposed proof. In the Grayhaven housing nonprofit, assess this against the documented code app connector binding scenario.

Incorrect Answers

B:

“Agent calls must honor configured authentication and connector permissions” is not the controlling explanation for at the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. The cited causal relationship is the app source code references a connector that was never configured for the app. The matching answer is “The app source code references a connector that was never configured for the app”.

C:

“Duplicated client updates bypass an established server-side operation contract” is not the controlling explanation for at the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. The cited causal relationship is the app source code references a connector that was never configured for the app. The matching answer is “The app source code references a connector that was never configured for the app”.

D:

This explanation corresponds to pcf solution packaging rather than the symptoms in the case. The controlling cause here is that the app source code references a connector that was never configured for the app; the unrelated mechanism does not account for the observed behavior. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

Question 279

At the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. What outcome would most convincingly confirm that the issue is resolved?

  1. After import, the same app resolves the target environment list
  2. A single authorized action returns the documented result without partial client writes
  3. A valid connection is resolved and the expected external data appears
  4. A success message appears only after server confirmation; failures show an error

Explanation

Correct Answer

C:

The implementation should be accepted when a valid connection is resolved and the expected external data appears. That result specifically exercises the remediation to add the supported connector data source with an approved Power Apps connection. In the Grayhaven housing nonprofit, assess this against the documented code app connector binding scenario.

Incorrect Answers

A:

Although useful when testing code app environment-variable reference, this observation is not the direct acceptance test for the stated change. Look instead for a valid connection is resolved and the expected external data appears. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

B:

The test is directed at code app dataverse action, not the reported failure mechanism. Successful correction here requires demonstrating that a valid connection is resolved and the expected external data appears. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

D:

Although useful when testing async data refresh, this observation is not the direct acceptance test for the stated change. Look instead for a valid connection is resolved and the expected external data appears. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

Question 280

At the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. Which ongoing engineering control would most directly reduce recurrence?

  1. Include negative authorization tests for every role
  2. Check environment variable values and data-source references before deployment
  3. Include datasource binding validation in code app deployments
  4. Test generated services and table permissions in each environment

Explanation

Correct Answer

C:

The most relevant long-term safeguard is to include datasource binding validation in code app deployments. It preserves the remediation to add the supported connector data source with an approved Power Apps connection as operating conditions change. In the Grayhaven housing nonprofit, assess this against the documented code app connector binding scenario.

Incorrect Answers

A:

“Include negative authorization tests for every role” checks a different ongoing risk rather than the reported failure: at the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. The relevant mechanism is the app source code references a connector that was never configured for the app. The directly matched preventive control is “Include datasource binding validation in code app deployments”.

B:

That safeguard is appropriate for maintaining code app environment-variable reference. It would not primarily prevent the reported failure, for which the relevant control is to include datasource binding validation in code app deployments. For case R082-PL400-CASE-0070, the decisive context is the 2 deployment setting at the Grayhaven housing nonprofit.

D:

“Test generated services and table permissions in each environment” checks a different ongoing risk rather than the reported failure: at the Grayhaven housing nonprofit after a wider deployment, a code app displays a blank page because its external connector was not added to its data sources. The operations team needs a supportable remediation with evidence for the handover. The relevant mechanism is the app source code references a connector that was never configured for the app. The directly matched preventive control is “Include datasource binding validation in code app deployments”.