Answer: Frequency: Day - Interval: 1

## Detailed Explanation To configure a scheduled trigger in Azure Data Factory that runs at specific times each day (10:15 AM, 12:15 PM, 2:15 PM, and 4:15 PM), the optimal configuration is: **Frequency: Day with Interval: 1** ### Why Option B is Correct: 1. **Daily Recurrence Pattern**: The requirement specifies "every day" with four fixed execution times. This establishes a daily recurrence pattern where the pipeline should run once per day, but with multiple executions within that day. 2. **Advanced Scheduling Capabilities**: When you set Frequency to "Day" and Interval to "1", Azure Data Factory allows you to configure multiple execution times within the same day using the advanced scheduling options. You can specify multiple hours (10, 12, 14, 16) and a fixed minute value (15) to achieve the exact schedule requirements. 3. **Precise Time Control**: This configuration ensures the pipeline runs exactly at the specified times (10:15, 12:15, 14:15, 16:15) without additional executions outside these times. ### Why Other Options Are Less Suitable: - **Option A (Month/1)**: This would run the pipeline monthly, not daily, which doesn't meet the "every day" requirement. - **Option C (Minute/60)**: This would run the pipeline every hour, resulting in 24 executions per day instead of the required 4 specific executions. - **Option D (Hour/2)**: While this might seem close, it would run every 2 hours starting from the trigger creation time, potentially missing the exact 10:15 AM start time and continuing beyond 4:15 PM, resulting in more than the required 4 executions per day. ### Best Practice Implementation: In Azure Data Factory, you would: 1. Create a schedule trigger with Frequency: "Day" and Interval: "1" 2. In the advanced settings, specify hours: 10, 12, 14, 16 3. Set minutes: 15 4. This creates the equivalent of a cron expression: `15 10,12,14,16 * * *` This approach provides the exact scheduling required while maintaining simplicity and avoiding unnecessary executions.

Author: LeetQuiz Editorial Team