This is a verified interview question from Expedia. Candidates reporting seeing this problem in recent Online Assessments (OAs) and onsite rounds. Mastering "SQL Problem — Users and MAC Addresses - Expedia Online Assessment DTU" covers key patterns like Arrays.
"You are given two tables: **`users`** | user_id | name | | ------- | ------- | | 1 | Alice | | 2 | Bob | | 3 | Charlie | **`devices`** | user_id | mac_address | | ------- | ----------------- | | 1 | AA:BB:CC:DD:EE:01 | | 2 | AA:BB:CC:DD:EE:02 | | 1 | AA:BB:CC:DD:EE:03 | Write an SQL query to display each user's name along with their MAC address. ### Expected Output | name | mac_address | | ----- | ----------------- | | Alice | AA:BB:CC:DD:EE:01 | | Alice | AA:BB:CC:DD:EE:03 | | Bob | AA:BB:CC:DD:EE:02 |"
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