How many credits will a medium-size warehouse consume in a setup with two auto-scaled clusters for three hours, where the first cluster runs continuously and the second runs for 30 minutes in the second hour?

• A. 8
• B. 10
• C. 14
• D. 16

Answer: (C)

Credits are charged per cluster per hour at the rate for the warehouse size. A medium warehouse uses 4 credits per hour per cluster. With two auto-scaled clusters, you add up the active time of each cluster.

The first cluster runs for the full three hours: 3 × 4 = 12 credits.

The second cluster runs for 0.5 hours in the second hour: 0.5 × 4 = 2 credits.

Total credits = 12 + 2 = 14 credits.

So the total is 14 credits.