Title: 544
Tags: lec40

Q: What is a BigQuery slot?
A: A unit of resources, consisting of approximately 1 GB of RAM and 0.5 CPUs

Q: What are two BigQuery billing models?
A: Capacity and On-Demand

Q: Which BigQuery billing model has priority access to resources (i.e., first "right of refusal")?
A: Capacity billing.  This is reserved capacity, so it should be usable whenever needed.
Any leftover resources (if any) are shared between on-demand jobs.

Q: What do on-demand and capacity billing charge for in BigQuery?
A: Both charge for Collosus storage.
On-demand additionally charges for Collosus I/O.
Capacity additionally charges for CPU+memory.

Q: What does it mean that a BigQuery task is preemptible?
A: It can be interrupted if resources are needed for something more important.  For example, an on-demand task might be preempted by a capacity task (capacity is considered more important).