Formatting & distribution — quiz

Why set canvas size before building?

1. It cannot be changed
2. Changing it later reflows every component
3. It affects data
4. It sets the theme

Answer: Changing it later reflows every component — You would reposition everything by hand.

How do Looker Studio reports behave on mobile?

1. Components reflow automatically
2. The fixed canvas scales but does not reflow
3. They are hidden
4. They convert to tables

Answer: The fixed canvas scales but does not reflow — Build a separate mobile page if it matters.

Owner's credentials means viewers:

1. Must authenticate themselves
2. See data through the owner's access, regardless of their own
3. Cannot see the report
4. Get read-only data

Answer: See data through the owner's access, regardless of their own — Convenient, and the usual cause of unintended data exposure.

A scheduled email PDF renders with:

1. The last filter used
2. The report default filter state
3. No filters
4. The recipient's filters

Answer: The report default filter state — Set sensible defaults before scheduling.

Which typically gives the biggest speed improvement?

1. Removing colours
2. Extract data, or aggregating upstream
3. Fewer pages
4. A different theme

Answer: Extract data, or aggregating upstream — Query volume and row count dominate performance.

Why are blends often slow?

1. They cache badly
2. Each source is queried separately
3. They use more memory
4. They ignore filters

Answer: Each source is queried separately — An upstream join avoids the extra round trips.