20+ practice questions focused on Data Migration — one of the most tested topics on the Salesforce Certified Data Architecture and Management Designer exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Data Migration PracticeRefer to the exhibit. A data migration is failing on Account upserts using an external ID field. What is the most likely cause of this error?
Explanation: The error indicates that the incoming data contains a duplicate value for a field marked as a unique external ID. Even if the 'Upsert' operation is used, if the record name or another unique constraint is violated by the incoming data set, the transaction fails. Data architects must ensure unique key validation is performed on the source data set before initiating the migration process.
A company is migrating data from a legacy SQL database to Salesforce. They need to map complex relationships between Accounts, Contacts, and custom 'Projects'. What is the recommended strategy for handling foreign keys during migration?
Explanation: The recommended approach is to use a staging table or temporary custom field to store the legacy unique identifier. By maintaining this legacy key in Salesforce, architects can perform multi-pass loads. This allows for the resolution of circular dependencies and complex lookups by querying the temporary key to map the Salesforce record ID during subsequent load phases.
Which THREE activities are standard for the 'Post-Migration' phase of a project?
Explanation: The post-migration phase is dedicated to verification, validation, and system cleanup. Architects must reconcile record counts to ensure no data was lost, validate that critical business processes (like workflows and triggers) are functioning correctly under the new load, and perform 'clean-up' tasks such as re-enabling automation that was disabled for the migration to ensure the platform is ready for business-as-usual operations.
A company is migrating 50 million records into Salesforce. To maintain data integrity, they must ensure that external IDs are utilized correctly. What is the primary advantage of using External IDs during the data migration process?
Explanation: External IDs are critical in Salesforce data migrations because they allow for non-destructive upserts, preventing duplicate record creation. By mapping a unique field from the source system to a Salesforce External ID field, the system can automatically match existing records instead of generating new ones. This mechanism is essential for maintaining relational integrity across large datasets, especially when dealing with parent-child relationships and system synchronization cycles where source data keys are persisted.
Refer to the exhibit. A data architect is performing a bulk migration of Accounts and related Contacts. During the migration, the team encounters the specified error. What should the architect do to resolve this issue?
Explanation: The error indicates a record locking contention, commonly occurring when multiple threads or batches attempt to update the same parent record simultaneously. This is frequent in parent-child loads where children point to the same Account. To resolve this, the architect must reduce the batch size to limit concurrent updates or sort the load file by the parent ID to ensure all children of one parent are processed sequentially within the same batch.
+15 more Data Migration questions available
Practice all Data Migration questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Data Migration. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Data Migration questions on the SF-Data-Arch frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Data Migration is tested as part of the Salesforce Certified Data Architecture and Management Designer blueprint. Practicing with targeted Data Migration questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free SF-Data-Arch practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Data Migration is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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