PDE Maintaining and Automating Data Workloads Practice Question
Your organization has a BigQuery flat-rate reservation with 500 slots. During peak hours, queries are queued and you need additional capacity temporarily. You want to add slots for a burst of activity without committing to a long-term purchase. What should you do?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use flex slots
Flex slots are short-term, hourly commitments that can be added to an existing flat-rate reservation to handle bursts. They are ideal for temporary capacity needs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Switch to on-demand pricing
Why it's wrong here
On-demand pricing charges per query and may not be cost-effective for predictable workloads.
- ✓
Use flex slots
Why this is correct
Flex slots provide temporary capacity on an hourly basis, perfect for bursting.
- ✗
Create a secondary reservation with autoscaling
Why it's wrong here
Autoscaling slots are part of a reservation but require baseline commitments; flex slots are separate.
- ✗
Purchase additional committed use reservations
Why it's wrong here
Committed use reservations require 1- or 3-year commitments.
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