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PL-900 Practice Question: Refer to the exhibit

Exhibit

{
  "authentication": {
    "provider": "Microsoft Entra ID",
    "tenantId": "contoso.onmicrosoft.com",
    "clientId": "12345678-1234-1234-1234-123456789abc",
    "redirectUrl": "https://contoso.powerpages.microsoft.com/signin-aad"
  }
}

Refer to the exhibit. A Power Pages site is configured with the given authentication settings. When a user clicks 'Sign In', they are redirected to Microsoft Entra ID, but after successful login, they are redirected back to the site and see an error. What is the most likely cause?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The redirectUrl is not registered in the Microsoft Entra ID app.

The redirectUrl must be registered as a reply URL in the Microsoft Entra ID app registration. If it is missing, the login fails.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
The clientId is invalid.
Why it's wrong here
ClientId format is correct.
✗
The tenantId is incorrect.
Why it's wrong here
contoso.onmicrosoft.com is a valid tenant.
✓
The redirectUrl is not registered in the Microsoft Entra ID app.
Why this is correct
The redirect URL must match the app registration.
✗
The site requires HTTPS but is using HTTP.
Why it's wrong here
Power Pages always uses HTTPS.

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PL-900 Practice Question: Refer to the exhibit

Exhibit

Why each option matters

Option-by-option breakdown

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