CockroachDB quiz

Test your CockroachDB knowledge with a free interactive quiz — 19 questions with answers and explanations. No signup needed to play.

What is CockroachDB's "changefeed" feature used for?

1. What is CockroachDB's "changefeed" feature used for?
2. Why might a team choose CockroachDB specifically over sharding a traditional PostgreSQL deployment themselves for horizontal scale?
3. What does it mean that CockroachDB is often described as providing "geo-partitioning"?
4. Why is CockroachDB named after a cockroach?
5. How does CockroachDB achieve data replication and fault tolerance under the hood?
6. What is the purpose of `BACKUP` and `RESTORE` SQL statements built into CockroachDB?
7. What does "multi-region" configuration in CockroachDB (e.g. `REGIONAL BY ROW`, `GLOBAL` tables) let you control?
8. What consistency model does CockroachDB provide for transactions by default?
9. What happens to a transaction in CockroachDB when it hits a serialization conflict with another concurrent transaction?
10. What does CockroachDB's admin/DB Console UI typically surface for operators?
11. What is `cockroach demo` (or a local single-node `cockroach start-single-node`) typically used for?
12. What is CockroachDB's approach to "survivability goals" (`SURVIVE ZONE FAILURE` vs `SURVIVE REGION FAILURE`) in a multi-region cluster?

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