Implement Data Synchronization with Dataverse PL-400 Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A company needs to synchronize data between two Dataverse environments (production and a sandbox). The sync must be bidirectional and handle conflicts. The developer is considering using change tracking and UpsertRequest. What is the most important consideration for conflict resolution?

   • AUse a full sync every time to avoid conflicts.
   • BDisable change tracking to avoid conflict detection.
   • CDefine a conflict resolution policy, such as last-write-wins, and include a timestamp or version field in the sync logic.
   • DUse alternate keys to ensure records are matched correctly.
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2. 2expert · hard

   A developer is using UpsertRequest with an alternate key to sync records. The developer wants to ensure that if the alternate key value changes in the source system, the existing Dataverse record is updated correctly. What should the developer do?

   • ADelete the old record and create a new one with the new alternate key.
   • BUse UpdateRequest instead of UpsertRequest.
   • CInclude the new alternate key value in the target entity and also set the primary key GUID if known.
   • DOnly include the new alternate key value in the target entity.
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4. 3application · medium

   A company integrates its legacy ERP system with Dataverse. The ERP system does not store the Dataverse primary key (GUID) for records. Instead, it uses a unique customer number to identify customers. The developer needs to enable the integration to create or update Contact records in Dataverse using the customer number without first querying for the GUID. What should the developer do?

   • ADefine an alternate key on the Contact table using the customer number column and use UpsertRequest with that key.
   • BDisable the primary key requirement on the Contact table so records can be created without a GUID.
   • CUse a RetrieveMultiple query to find the Contact by customer number before every create or update.
   • DCreate a new GUID column in the Contact table and populate it with the customer number.
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5. 4expert · hard

   A developer is troubleshooting a change tracking sync that is missing some records. The sync uses RetrieveEntityChanges with a persisted token. The developer notices that the sync processes changes and then stores the token. However, some records are still missed. What is the most likely cause?

   • AChange tracking is not enabled on the table.
   • BThe sync uses a full query instead of RetrieveEntityChanges.
   • CThe token is stored before all changes in the batch are fully processed.
   • DThe alternate key is not defined on the table.
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6. 5application · medium

   A developer is implementing a sync process that reads changes from Dataverse and writes them to an external system. The developer needs to ensure that if the external system is temporarily unavailable, the sync can resume without missing changes. What should the developer do?

   • APersist the change tracking token after successfully processing each batch and use it to resume.
   • BRe-run the initial full synchronization every time the external system becomes available.
   • CDisable change tracking and use a full query with a modifiedon filter each time.
   • DStore the last processed record GUID and use it as the token in the next request.
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