What does the If-Match header with an etag do in a Dataverse Web API update request?

It ensures the update only occurs if the record's current etag matches the provided value

It forces the update to occur regardless of the current state

It returns the updated record in the response

It deletes the record if the etag does not match

A developer needs to create an account, a contact, and an opportunity in a single transaction using the Organization service. If any operation fails, none should be created. What should they use?

ExecuteMultipleRequest with all three CreateRequests

ExecuteTransactionRequest with all three CreateRequests

A custom app must display a list of accounts and their primary contacts. The current implementation makes one request per account to retrieve the contact, causing slow performance. You need to reduce the number of requests while keeping the data fresh. What should you do?

Use $select to retrieve only the contact ID and then make individual requests

Use $expand on the contact lookup in a single query

Cache the contact data client-side for 24 hours

Use a batch request to retrieve all contacts in one call

What is a recommended practice to reduce latency when making multiple API calls to Dataverse?

Use the $batch endpoint to combine multiple requests

Always retrieve all columns to avoid multiple calls

Use synchronous calls to ensure order

Use parallel requests for all operations

A developer is writing code that creates an account and then creates a contact linked to that account. If the contact creation fails, the account should not be created. What is the most appropriate way to achieve this using the Dataverse Web API?

Use the Organization service with two separate CreateRequest calls

Create the contact first, then create the account

Use the $batch operation with atomicity for both create requests

Create the account, then create the contact, and delete the account if the contact fails

Microsoft Certified:Power Platform Developer Associate

Domain 5Objective 3

Use Platform APIs PL-400 Practice Questions (Page 3)

Part of the Extend the platform domain, which accounts for 30–35% of the PL-400 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~12–23 in this domain), expect 2–5 from this objective — we provide 42 practice questions to prepare you well beyond it. (estimate)

42questions here

9free pages

8concepts

30–35%of the exam

Questions 11–15

11foundation · easy
What does the If-Match header with an etag do in a Dataverse Web API update request?
Select an answer first
12application · medium
A developer needs to create an account, a contact, and an opportunity in a single transaction using the Organization service. If any operation fails, none should be created. What should they use?
Select an answer first
13expert · hard
A custom app must display a list of accounts and their primary contacts. The current implementation makes one request per account to retrieve the contact, causing slow performance. You need to reduce the number of requests while keeping the data fresh. What should you do?
Select an answer first
14foundation · easy
What is a recommended practice to reduce latency when making multiple API calls to Dataverse?
Select an answer first
15application · medium
A developer is writing code that creates an account and then creates a contact linked to that account. If the contact creation fails, the account should not be created. What is the most appropriate way to achieve this using the Dataverse Web API?
Select an answer first

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